/*
* i386 helpers
- *
+ *
* Copyright (c) 2003 Fabrice Bellard
*
* This library is free software; you can redistribute it and/or
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#define CPU_NO_GLOBAL_REGS
#include "exec.h"
+#include "host-utils.h"
//#define DEBUG_PCALL
#if 0
#define raise_exception_err(a, b)\
do {\
- fprintf(logfile, "raise_exception line=%d\n", __LINE__);\
+ if (logfile)\
+ fprintf(logfile, "raise_exception line=%d\n", __LINE__);\
(raise_exception_err)(a, b);\
} while (0)
#endif
/* modulo 17 table */
const uint8_t rclw_table[32] = {
- 0, 1, 2, 3, 4, 5, 6, 7,
+ 0, 1, 2, 3, 4, 5, 6, 7,
8, 9,10,11,12,13,14,15,
16, 0, 1, 2, 3, 4, 5, 6,
7, 8, 9,10,11,12,13,14,
/* modulo 9 table */
const uint8_t rclb_table[32] = {
- 0, 1, 2, 3, 4, 5, 6, 7,
+ 0, 1, 2, 3, 4, 5, 6, 7,
8, 0, 1, 2, 3, 4, 5, 6,
- 7, 8, 0, 1, 2, 3, 4, 5,
+ 7, 8, 0, 1, 2, 3, 4, 5,
6, 7, 8, 0, 1, 2, 3, 4,
};
1.44269504088896340739L, /*l2e*/
3.32192809488736234781L, /*l2t*/
};
-
-/* thread support */
+
+/* broken thread support */
spinlock_t global_cpu_lock = SPIN_LOCK_UNLOCKED;
-void cpu_lock(void)
+void helper_lock(void)
{
spin_lock(&global_cpu_lock);
}
-void cpu_unlock(void)
+void helper_unlock(void)
{
spin_unlock(&global_cpu_lock);
}
-void cpu_loop_exit(void)
-{
- /* NOTE: the register at this point must be saved by hand because
- longjmp restore them */
- regs_to_env();
- longjmp(env->jmp_env, 1);
-}
-
/* return non zero if error */
static inline int load_segment(uint32_t *e1_ptr, uint32_t *e2_ptr,
int selector)
*e2_ptr = ldl_kernel(ptr + 4);
return 0;
}
-
+
static inline unsigned int get_seg_limit(uint32_t e1, uint32_t e2)
{
unsigned int limit;
static inline void load_seg_vm(int seg, int selector)
{
selector &= 0xffff;
- cpu_x86_load_seg_cache(env, seg, selector,
+ cpu_x86_load_seg_cache(env, seg, selector,
(selector << 4), 0xffff, 0);
}
-static inline void get_ss_esp_from_tss(uint32_t *ss_ptr,
+static inline void get_ss_esp_from_tss(uint32_t *ss_ptr,
uint32_t *esp_ptr, int dpl)
{
int type, index, shift;
-
+
#if 0
{
int i;
if (seg_reg == R_CS) {
if (!(e2 & DESC_CS_MASK))
raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
+ /* XXX: is it correct ? */
if (dpl != rpl)
raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
if ((e2 & DESC_C_MASK) && dpl > rpl)
raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
-
} else if (seg_reg == R_SS) {
/* SS must be writable data */
if ((e2 & DESC_CS_MASK) || !(e2 & DESC_W_MASK))
}
if (!(e2 & DESC_P_MASK))
raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
- cpu_x86_load_seg_cache(env, seg_reg, selector,
+ cpu_x86_load_seg_cache(env, seg_reg, selector,
get_seg_base(e1, e2),
get_seg_limit(e1, e2),
e2);
} else {
- if (seg_reg == R_SS || seg_reg == R_CS)
+ if (seg_reg == R_SS || seg_reg == R_CS)
raise_exception_err(EXCP0A_TSS, selector & 0xfffc);
}
}
#define SWITCH_TSS_CALL 2
/* XXX: restore CPU state in registers (PowerPC case) */
-static void switch_tss(int tss_selector,
+static void switch_tss(int tss_selector,
uint32_t e1, uint32_t e2, int source,
uint32_t next_eip)
{
tss_limit_max = 43;
tss_limit = get_seg_limit(e1, e2);
tss_base = get_seg_base(e1, e2);
- if ((tss_selector & 4) != 0 ||
+ if ((tss_selector & 4) != 0 ||
tss_limit < tss_limit_max)
raise_exception_err(EXCP0A_TSS, tss_selector & 0xfffc);
old_type = (env->tr.flags >> DESC_TYPE_SHIFT) & 0xf;
new_segs[R_GS] = 0;
new_trap = 0;
}
-
+
/* NOTE: we must avoid memory exceptions during the task switch,
so we make dummy accesses before */
/* XXX: it can still fail in some cases, so a bigger hack is
necessary to valid the TLB after having done the accesses */
v1 = ldub_kernel(env->tr.base);
- v2 = ldub(env->tr.base + old_tss_limit_max);
+ v2 = ldub_kernel(env->tr.base + old_tss_limit_max);
stb_kernel(env->tr.base, v1);
stb_kernel(env->tr.base + old_tss_limit_max, v2);
-
+
/* clear busy bit (it is restartable) */
if (source == SWITCH_TSS_JMP || source == SWITCH_TSS_IRET) {
target_ulong ptr;
old_eflags = compute_eflags();
if (source == SWITCH_TSS_IRET)
old_eflags &= ~NT_MASK;
-
+
/* save the current state in the old TSS */
if (type & 8) {
/* 32 bit */
for(i = 0; i < 4; i++)
stw_kernel(env->tr.base + (0x22 + i * 4), env->segs[i].selector);
}
-
+
/* now if an exception occurs, it will occurs in the next task
context */
env->tr.base = tss_base;
env->tr.limit = tss_limit;
env->tr.flags = e2 & ~DESC_TSS_BUSY_MASK;
-
+
if ((type & 8) && (env->cr[0] & CR0_PG_MASK)) {
cpu_x86_update_cr3(env, new_cr3);
}
-
+
/* load all registers without an exception, then reload them with
possible exception */
env->eip = new_eip;
- eflags_mask = TF_MASK | AC_MASK | ID_MASK |
+ eflags_mask = TF_MASK | AC_MASK | ID_MASK |
IF_MASK | IOPL_MASK | VM_MASK | RF_MASK | NT_MASK;
if (!(type & 8))
eflags_mask &= 0xffff;
ESI = new_regs[6];
EDI = new_regs[7];
if (new_eflags & VM_MASK) {
- for(i = 0; i < 6; i++)
+ for(i = 0; i < 6; i++)
load_seg_vm(i, new_segs[i]);
/* in vm86, CPL is always 3 */
cpu_x86_set_cpl(env, 3);
for(i = 0; i < 6; i++)
cpu_x86_load_seg_cache(env, i, new_segs[i], 0, 0, 0);
}
-
+
env->ldt.selector = new_ldt & ~4;
env->ldt.base = 0;
env->ldt.limit = 0;
raise_exception_err(EXCP0A_TSS, new_ldt & 0xfffc);
load_seg_cache_raw_dt(&env->ldt, e1, e2);
}
-
+
/* load the segments */
if (!(new_eflags & VM_MASK)) {
tss_load_seg(R_CS, new_segs[R_CS]);
tss_load_seg(R_FS, new_segs[R_FS]);
tss_load_seg(R_GS, new_segs[R_GS]);
}
-
+
/* check that EIP is in the CS segment limits */
if (new_eip > env->segs[R_CS].limit) {
/* XXX: different exception if CALL ? */
static inline void check_io(int addr, int size)
{
int io_offset, val, mask;
-
+
/* TSS must be a valid 32 bit one */
if (!(env->tr.flags & DESC_P_MASK) ||
((env->tr.flags >> DESC_TYPE_SHIFT) & 0xf) != 9 ||
}
}
-void check_iob_T0(void)
+void helper_check_iob(uint32_t t0)
+{
+ check_io(t0, 1);
+}
+
+void helper_check_iow(uint32_t t0)
+{
+ check_io(t0, 2);
+}
+
+void helper_check_iol(uint32_t t0)
+{
+ check_io(t0, 4);
+}
+
+void helper_outb(uint32_t port, uint32_t data)
{
- check_io(T0, 1);
+ cpu_outb(env, port, data & 0xff);
}
-void check_iow_T0(void)
+target_ulong helper_inb(uint32_t port)
{
- check_io(T0, 2);
+ return cpu_inb(env, port);
}
-void check_iol_T0(void)
+void helper_outw(uint32_t port, uint32_t data)
{
- check_io(T0, 4);
+ cpu_outw(env, port, data & 0xffff);
}
-void check_iob_DX(void)
+target_ulong helper_inw(uint32_t port)
{
- check_io(EDX & 0xffff, 1);
+ return cpu_inw(env, port);
}
-void check_iow_DX(void)
+void helper_outl(uint32_t port, uint32_t data)
{
- check_io(EDX & 0xffff, 2);
+ cpu_outl(env, port, data);
}
-void check_iol_DX(void)
+target_ulong helper_inl(uint32_t port)
{
- check_io(EDX & 0xffff, 4);
+ return cpu_inl(env, port);
}
static inline unsigned int get_sp_mask(unsigned int e2)
return 0xffff;
}
+#ifdef TARGET_X86_64
+#define SET_ESP(val, sp_mask)\
+do {\
+ if ((sp_mask) == 0xffff)\
+ ESP = (ESP & ~0xffff) | ((val) & 0xffff);\
+ else if ((sp_mask) == 0xffffffffLL)\
+ ESP = (uint32_t)(val);\
+ else\
+ ESP = (val);\
+} while (0)
+#else
+#define SET_ESP(val, sp_mask) ESP = (ESP & ~(sp_mask)) | ((val) & (sp_mask))
+#endif
+
/* XXX: add a is_user flag to have proper security support */
#define PUSHW(ssp, sp, sp_mask, val)\
{\
{
SegmentCache *dt;
target_ulong ptr, ssp;
- int type, dpl, selector, ss_dpl, cpl, sp_mask;
+ int type, dpl, selector, ss_dpl, cpl;
int has_error_code, new_stack, shift;
uint32_t e1, e2, offset, ss, esp, ss_e1, ss_e2;
- uint32_t old_eip;
+ uint32_t old_eip, sp_mask;
+ int svm_should_check = 1;
+
+ if ((env->intercept & INTERCEPT_SVM_MASK) && !is_int && next_eip==-1) {
+ next_eip = EIP;
+ svm_should_check = 0;
+ }
+ if (svm_should_check
+ && (INTERCEPTEDl(_exceptions, 1 << intno)
+ && !is_int)) {
+ raise_interrupt(intno, is_int, error_code, 0);
+ }
has_error_code = 0;
if (!is_int && !is_hw) {
switch(intno) {
raise_exception_err(EXCP0B_NOSEG, intno * 8 + 2);
switch_tss(intno * 8, e1, e2, SWITCH_TSS_CALL, old_eip);
if (has_error_code) {
- int mask;
+ int type;
+ uint32_t mask;
/* push the error code */
- shift = (env->segs[R_CS].flags >> DESC_B_SHIFT) & 1;
+ type = (env->tr.flags >> DESC_TYPE_SHIFT) & 0xf;
+ shift = type >> 3;
if (env->segs[R_SS].flags & DESC_B_MASK)
mask = 0xffffffff;
else
stl_kernel(ssp, error_code);
else
stw_kernel(ssp, error_code);
- ESP = (esp & mask) | (ESP & ~mask);
+ SET_ESP(esp, mask);
}
return;
case 6: /* 286 interrupt gate */
if (!(e2 & DESC_P_MASK))
raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
if (!(e2 & DESC_C_MASK) && dpl < cpl) {
- /* to inner priviledge */
+ /* to inner privilege */
get_ss_esp_from_tss(&ss, &esp, dpl);
if ((ss & 0xfffc) == 0)
raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
sp_mask = get_sp_mask(ss_e2);
ssp = get_seg_base(ss_e1, ss_e2);
} else if ((e2 & DESC_C_MASK) || dpl == cpl) {
- /* to same priviledge */
+ /* to same privilege */
if (env->eflags & VM_MASK)
raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
new_stack = 0;
PUSHW(ssp, esp, sp_mask, error_code);
}
}
-
+
if (new_stack) {
if (env->eflags & VM_MASK) {
cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0, 0);
cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0, 0);
}
ss = (ss & ~3) | dpl;
- cpu_x86_load_seg_cache(env, R_SS, ss,
+ cpu_x86_load_seg_cache(env, R_SS, ss,
ssp, get_seg_limit(ss_e1, ss_e2), ss_e2);
}
- ESP = (ESP & ~sp_mask) | (esp & sp_mask);
+ SET_ESP(esp, sp_mask);
selector = (selector & ~3) | dpl;
- cpu_x86_load_seg_cache(env, R_CS, selector,
+ cpu_x86_load_seg_cache(env, R_CS, selector,
get_seg_base(e1, e2),
get_seg_limit(e1, e2),
e2);
static inline target_ulong get_rsp_from_tss(int level)
{
int index;
-
+
#if 0
- printf("TR: base=" TARGET_FMT_lx " limit=%x\n",
+ printf("TR: base=" TARGET_FMT_lx " limit=%x\n",
env->tr.base, env->tr.limit);
#endif
int has_error_code, new_stack;
uint32_t e1, e2, e3, ss;
target_ulong old_eip, esp, offset;
+ int svm_should_check = 1;
+ if ((env->intercept & INTERCEPT_SVM_MASK) && !is_int && next_eip==-1) {
+ next_eip = EIP;
+ svm_should_check = 0;
+ }
+ if (svm_should_check
+ && INTERCEPTEDl(_exceptions, 1 << intno)
+ && !is_int) {
+ raise_interrupt(intno, is_int, error_code, 0);
+ }
has_error_code = 0;
if (!is_int && !is_hw) {
switch(intno) {
if (!(e2 & DESC_L_MASK) || (e2 & DESC_B_MASK))
raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
if ((!(e2 & DESC_C_MASK) && dpl < cpl) || ist != 0) {
- /* to inner priviledge */
+ /* to inner privilege */
if (ist != 0)
esp = get_rsp_from_tss(ist + 3);
else
esp = get_rsp_from_tss(dpl);
+ esp &= ~0xfLL; /* align stack */
ss = 0;
new_stack = 1;
} else if ((e2 & DESC_C_MASK) || dpl == cpl) {
- /* to same priviledge */
+ /* to same privilege */
if (env->eflags & VM_MASK)
raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
new_stack = 0;
- esp = ESP & ~0xf; /* align stack */
+ if (ist != 0)
+ esp = get_rsp_from_tss(ist + 3);
+ else
+ esp = ESP;
+ esp &= ~0xfLL; /* align stack */
dpl = cpl;
} else {
raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
if (has_error_code) {
PUSHQ(esp, error_code);
}
-
+
if (new_stack) {
ss = 0 | dpl;
cpu_x86_load_seg_cache(env, R_SS, ss, 0, 0, 0);
ESP = esp;
selector = (selector & ~3) | dpl;
- cpu_x86_load_seg_cache(env, R_CS, selector,
+ cpu_x86_load_seg_cache(env, R_CS, selector,
get_seg_base(e1, e2),
get_seg_limit(e1, e2),
e2);
}
env->eflags &= ~(TF_MASK | VM_MASK | RF_MASK | NT_MASK);
}
+#endif
+#if defined(CONFIG_USER_ONLY)
+void helper_syscall(int next_eip_addend)
+{
+ env->exception_index = EXCP_SYSCALL;
+ env->exception_next_eip = env->eip + next_eip_addend;
+ cpu_loop_exit();
+}
+#else
void helper_syscall(int next_eip_addend)
{
int selector;
raise_exception_err(EXCP06_ILLOP, 0);
}
selector = (env->star >> 32) & 0xffff;
+#ifdef TARGET_X86_64
if (env->hflags & HF_LMA_MASK) {
+ int code64;
+
ECX = env->eip + next_eip_addend;
env->regs[11] = compute_eflags();
+ code64 = env->hflags & HF_CS64_MASK;
+
cpu_x86_set_cpl(env, 0);
- cpu_x86_load_seg_cache(env, R_CS, selector & 0xfffc,
- 0, 0xffffffff,
- DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
+ cpu_x86_load_seg_cache(env, R_CS, selector & 0xfffc,
+ 0, 0xffffffff,
+ DESC_G_MASK | DESC_P_MASK |
DESC_S_MASK |
DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK | DESC_L_MASK);
- cpu_x86_load_seg_cache(env, R_SS, (selector + 8) & 0xfffc,
+ cpu_x86_load_seg_cache(env, R_SS, (selector + 8) & 0xfffc,
0, 0xffffffff,
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
DESC_S_MASK |
DESC_W_MASK | DESC_A_MASK);
env->eflags &= ~env->fmask;
- if (env->hflags & HF_CS64_MASK)
+ load_eflags(env->eflags, 0);
+ if (code64)
env->eip = env->lstar;
else
env->eip = env->cstar;
- } else {
+ } else
+#endif
+ {
ECX = (uint32_t)(env->eip + next_eip_addend);
-
+
cpu_x86_set_cpl(env, 0);
- cpu_x86_load_seg_cache(env, R_CS, selector & 0xfffc,
- 0, 0xffffffff,
+ cpu_x86_load_seg_cache(env, R_CS, selector & 0xfffc,
+ 0, 0xffffffff,
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
DESC_S_MASK |
DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK);
- cpu_x86_load_seg_cache(env, R_SS, (selector + 8) & 0xfffc,
+ cpu_x86_load_seg_cache(env, R_SS, (selector + 8) & 0xfffc,
0, 0xffffffff,
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
DESC_S_MASK |
env->eip = (uint32_t)env->star;
}
}
+#endif
void helper_sysret(int dflag)
{
int cpl, selector;
+ if (!(env->efer & MSR_EFER_SCE)) {
+ raise_exception_err(EXCP06_ILLOP, 0);
+ }
cpl = env->hflags & HF_CPL_MASK;
if (!(env->cr[0] & CR0_PE_MASK) || cpl != 0) {
raise_exception_err(EXCP0D_GPF, 0);
}
selector = (env->star >> 48) & 0xffff;
+#ifdef TARGET_X86_64
if (env->hflags & HF_LMA_MASK) {
if (dflag == 2) {
- cpu_x86_load_seg_cache(env, R_CS, (selector + 16) | 3,
- 0, 0xffffffff,
- DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
+ cpu_x86_load_seg_cache(env, R_CS, (selector + 16) | 3,
+ 0, 0xffffffff,
+ DESC_G_MASK | DESC_P_MASK |
DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
- DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK |
+ DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK |
DESC_L_MASK);
env->eip = ECX;
} else {
- cpu_x86_load_seg_cache(env, R_CS, selector | 3,
- 0, 0xffffffff,
+ cpu_x86_load_seg_cache(env, R_CS, selector | 3,
+ 0, 0xffffffff,
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK);
env->eip = (uint32_t)ECX;
}
- cpu_x86_load_seg_cache(env, R_SS, selector + 8,
+ cpu_x86_load_seg_cache(env, R_SS, selector + 8,
0, 0xffffffff,
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
DESC_W_MASK | DESC_A_MASK);
- load_eflags((uint32_t)(env->regs[11]), 0xffffffff);
+ load_eflags((uint32_t)(env->regs[11]), TF_MASK | AC_MASK | ID_MASK |
+ IF_MASK | IOPL_MASK | VM_MASK | RF_MASK | NT_MASK);
cpu_x86_set_cpl(env, 3);
- } else {
- cpu_x86_load_seg_cache(env, R_CS, selector | 3,
- 0, 0xffffffff,
+ } else
+#endif
+ {
+ cpu_x86_load_seg_cache(env, R_CS, selector | 3,
+ 0, 0xffffffff,
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK);
env->eip = (uint32_t)ECX;
- cpu_x86_load_seg_cache(env, R_SS, selector + 8,
+ cpu_x86_load_seg_cache(env, R_SS, selector + 8,
0, 0xffffffff,
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
env->eflags |= IF_MASK;
cpu_x86_set_cpl(env, 3);
}
-}
+#ifdef USE_KQEMU
+ if (kqemu_is_ok(env)) {
+ if (env->hflags & HF_LMA_MASK)
+ CC_OP = CC_OP_EFLAGS;
+ env->exception_index = -1;
+ cpu_loop_exit();
+ }
#endif
+}
/* real mode interrupt */
static void do_interrupt_real(int intno, int is_int, int error_code,
int selector;
uint32_t offset, esp;
uint32_t old_cs, old_eip;
+ int svm_should_check = 1;
+ if ((env->intercept & INTERCEPT_SVM_MASK) && !is_int && next_eip==-1) {
+ next_eip = EIP;
+ svm_should_check = 0;
+ }
+ if (svm_should_check
+ && INTERCEPTEDl(_exceptions, 1 << intno)
+ && !is_int) {
+ raise_interrupt(intno, is_int, error_code, 0);
+ }
/* real mode (simpler !) */
dt = &env->idt;
if (intno * 4 + 3 > dt->limit)
PUSHW(ssp, esp, 0xffff, compute_eflags());
PUSHW(ssp, esp, 0xffff, old_cs);
PUSHW(ssp, esp, 0xffff, old_eip);
-
+
/* update processor state */
ESP = (ESP & ~0xffff) | (esp & 0xffff);
env->eip = offset;
}
/* fake user mode interrupt */
-void do_interrupt_user(int intno, int is_int, int error_code,
+void do_interrupt_user(int intno, int is_int, int error_code,
target_ulong next_eip)
{
SegmentCache *dt;
target_ulong ptr;
- int dpl, cpl;
+ int dpl, cpl, shift;
uint32_t e2;
dt = &env->idt;
- ptr = dt->base + (intno * 8);
+ if (env->hflags & HF_LMA_MASK) {
+ shift = 4;
+ } else {
+ shift = 3;
+ }
+ ptr = dt->base + (intno << shift);
e2 = ldl_kernel(ptr + 4);
-
+
dpl = (e2 >> DESC_DPL_SHIFT) & 3;
cpl = env->hflags & HF_CPL_MASK;
/* check privledge if software int */
if (is_int && dpl < cpl)
- raise_exception_err(EXCP0D_GPF, intno * 8 + 2);
+ raise_exception_err(EXCP0D_GPF, (intno << shift) + 2);
/* Since we emulate only user space, we cannot do more than
exiting the emulation with the suitable exception and error
/*
* Begin execution of an interruption. is_int is TRUE if coming from
* the int instruction. next_eip is the EIP value AFTER the interrupt
- * instruction. It is only relevant if is_int is TRUE.
+ * instruction. It is only relevant if is_int is TRUE.
*/
-void do_interrupt(int intno, int is_int, int error_code,
+void do_interrupt(int intno, int is_int, int error_code,
target_ulong next_eip, int is_hw)
{
-#ifdef DEBUG_PCALL
- if (loglevel & (CPU_LOG_PCALL | CPU_LOG_INT)) {
+ if (loglevel & CPU_LOG_INT) {
if ((env->cr[0] & CR0_PE_MASK)) {
static int count;
fprintf(logfile, "%6d: v=%02x e=%04x i=%d cpl=%d IP=%04x:" TARGET_FMT_lx " pc=" TARGET_FMT_lx " SP=%04x:" TARGET_FMT_lx,
fprintf(logfile, " EAX=" TARGET_FMT_lx, EAX);
}
fprintf(logfile, "\n");
-#if 0
cpu_dump_state(env, logfile, fprintf, X86_DUMP_CCOP);
+#if 0
{
int i;
uint8_t *ptr;
count++;
}
}
-#endif
if (env->cr[0] & CR0_PE_MASK) {
#if TARGET_X86_64
if (env->hflags & HF_LMA_MASK) {
}
}
+/*
+ * Check nested exceptions and change to double or triple fault if
+ * needed. It should only be called, if this is not an interrupt.
+ * Returns the new exception number.
+ */
+static int check_exception(int intno, int *error_code)
+{
+ int first_contributory = env->old_exception == 0 ||
+ (env->old_exception >= 10 &&
+ env->old_exception <= 13);
+ int second_contributory = intno == 0 ||
+ (intno >= 10 && intno <= 13);
+
+ if (loglevel & CPU_LOG_INT)
+ fprintf(logfile, "check_exception old: 0x%x new 0x%x\n",
+ env->old_exception, intno);
+
+ if (env->old_exception == EXCP08_DBLE)
+ cpu_abort(env, "triple fault");
+
+ if ((first_contributory && second_contributory)
+ || (env->old_exception == EXCP0E_PAGE &&
+ (second_contributory || (intno == EXCP0E_PAGE)))) {
+ intno = EXCP08_DBLE;
+ *error_code = 0;
+ }
+
+ if (second_contributory || (intno == EXCP0E_PAGE) ||
+ (intno == EXCP08_DBLE))
+ env->old_exception = intno;
+
+ return intno;
+}
+
/*
* Signal an interruption. It is executed in the main CPU loop.
* is_int is TRUE if coming from the int instruction. next_eip is the
* EIP value AFTER the interrupt instruction. It is only relevant if
- * is_int is TRUE.
+ * is_int is TRUE.
*/
-void raise_interrupt(int intno, int is_int, int error_code,
+void raise_interrupt(int intno, int is_int, int error_code,
int next_eip_addend)
{
+ if (!is_int) {
+ helper_svm_check_intercept_param(SVM_EXIT_EXCP_BASE + intno, error_code);
+ intno = check_exception(intno, &error_code);
+ }
+
env->exception_index = intno;
env->error_code = error_code;
env->exception_is_int = is_int;
/* same as raise_exception_err, but do not restore global registers */
static void raise_exception_err_norestore(int exception_index, int error_code)
{
+ exception_index = check_exception(exception_index, &error_code);
+
env->exception_index = exception_index;
env->error_code = error_code;
env->exception_is_int = 0;
raise_interrupt(exception_index, 0, 0, 0);
}
+/* SMM support */
+
+#if defined(CONFIG_USER_ONLY)
+
+void do_smm_enter(void)
+{
+}
+
+void helper_rsm(void)
+{
+}
+
+#else
+
+#ifdef TARGET_X86_64
+#define SMM_REVISION_ID 0x00020064
+#else
+#define SMM_REVISION_ID 0x00020000
+#endif
+
+void do_smm_enter(void)
+{
+ target_ulong sm_state;
+ SegmentCache *dt;
+ int i, offset;
+
+ if (loglevel & CPU_LOG_INT) {
+ fprintf(logfile, "SMM: enter\n");
+ cpu_dump_state(env, logfile, fprintf, X86_DUMP_CCOP);
+ }
+
+ env->hflags |= HF_SMM_MASK;
+ cpu_smm_update(env);
+
+ sm_state = env->smbase + 0x8000;
+
+#ifdef TARGET_X86_64
+ for(i = 0; i < 6; i++) {
+ dt = &env->segs[i];
+ offset = 0x7e00 + i * 16;
+ stw_phys(sm_state + offset, dt->selector);
+ stw_phys(sm_state + offset + 2, (dt->flags >> 8) & 0xf0ff);
+ stl_phys(sm_state + offset + 4, dt->limit);
+ stq_phys(sm_state + offset + 8, dt->base);
+ }
+
+ stq_phys(sm_state + 0x7e68, env->gdt.base);
+ stl_phys(sm_state + 0x7e64, env->gdt.limit);
+
+ stw_phys(sm_state + 0x7e70, env->ldt.selector);
+ stq_phys(sm_state + 0x7e78, env->ldt.base);
+ stl_phys(sm_state + 0x7e74, env->ldt.limit);
+ stw_phys(sm_state + 0x7e72, (env->ldt.flags >> 8) & 0xf0ff);
+
+ stq_phys(sm_state + 0x7e88, env->idt.base);
+ stl_phys(sm_state + 0x7e84, env->idt.limit);
+
+ stw_phys(sm_state + 0x7e90, env->tr.selector);
+ stq_phys(sm_state + 0x7e98, env->tr.base);
+ stl_phys(sm_state + 0x7e94, env->tr.limit);
+ stw_phys(sm_state + 0x7e92, (env->tr.flags >> 8) & 0xf0ff);
+
+ stq_phys(sm_state + 0x7ed0, env->efer);
+
+ stq_phys(sm_state + 0x7ff8, EAX);
+ stq_phys(sm_state + 0x7ff0, ECX);
+ stq_phys(sm_state + 0x7fe8, EDX);
+ stq_phys(sm_state + 0x7fe0, EBX);
+ stq_phys(sm_state + 0x7fd8, ESP);
+ stq_phys(sm_state + 0x7fd0, EBP);
+ stq_phys(sm_state + 0x7fc8, ESI);
+ stq_phys(sm_state + 0x7fc0, EDI);
+ for(i = 8; i < 16; i++)
+ stq_phys(sm_state + 0x7ff8 - i * 8, env->regs[i]);
+ stq_phys(sm_state + 0x7f78, env->eip);
+ stl_phys(sm_state + 0x7f70, compute_eflags());
+ stl_phys(sm_state + 0x7f68, env->dr[6]);
+ stl_phys(sm_state + 0x7f60, env->dr[7]);
+
+ stl_phys(sm_state + 0x7f48, env->cr[4]);
+ stl_phys(sm_state + 0x7f50, env->cr[3]);
+ stl_phys(sm_state + 0x7f58, env->cr[0]);
+
+ stl_phys(sm_state + 0x7efc, SMM_REVISION_ID);
+ stl_phys(sm_state + 0x7f00, env->smbase);
+#else
+ stl_phys(sm_state + 0x7ffc, env->cr[0]);
+ stl_phys(sm_state + 0x7ff8, env->cr[3]);
+ stl_phys(sm_state + 0x7ff4, compute_eflags());
+ stl_phys(sm_state + 0x7ff0, env->eip);
+ stl_phys(sm_state + 0x7fec, EDI);
+ stl_phys(sm_state + 0x7fe8, ESI);
+ stl_phys(sm_state + 0x7fe4, EBP);
+ stl_phys(sm_state + 0x7fe0, ESP);
+ stl_phys(sm_state + 0x7fdc, EBX);
+ stl_phys(sm_state + 0x7fd8, EDX);
+ stl_phys(sm_state + 0x7fd4, ECX);
+ stl_phys(sm_state + 0x7fd0, EAX);
+ stl_phys(sm_state + 0x7fcc, env->dr[6]);
+ stl_phys(sm_state + 0x7fc8, env->dr[7]);
+
+ stl_phys(sm_state + 0x7fc4, env->tr.selector);
+ stl_phys(sm_state + 0x7f64, env->tr.base);
+ stl_phys(sm_state + 0x7f60, env->tr.limit);
+ stl_phys(sm_state + 0x7f5c, (env->tr.flags >> 8) & 0xf0ff);
+
+ stl_phys(sm_state + 0x7fc0, env->ldt.selector);
+ stl_phys(sm_state + 0x7f80, env->ldt.base);
+ stl_phys(sm_state + 0x7f7c, env->ldt.limit);
+ stl_phys(sm_state + 0x7f78, (env->ldt.flags >> 8) & 0xf0ff);
+
+ stl_phys(sm_state + 0x7f74, env->gdt.base);
+ stl_phys(sm_state + 0x7f70, env->gdt.limit);
+
+ stl_phys(sm_state + 0x7f58, env->idt.base);
+ stl_phys(sm_state + 0x7f54, env->idt.limit);
+
+ for(i = 0; i < 6; i++) {
+ dt = &env->segs[i];
+ if (i < 3)
+ offset = 0x7f84 + i * 12;
+ else
+ offset = 0x7f2c + (i - 3) * 12;
+ stl_phys(sm_state + 0x7fa8 + i * 4, dt->selector);
+ stl_phys(sm_state + offset + 8, dt->base);
+ stl_phys(sm_state + offset + 4, dt->limit);
+ stl_phys(sm_state + offset, (dt->flags >> 8) & 0xf0ff);
+ }
+ stl_phys(sm_state + 0x7f14, env->cr[4]);
+
+ stl_phys(sm_state + 0x7efc, SMM_REVISION_ID);
+ stl_phys(sm_state + 0x7ef8, env->smbase);
+#endif
+ /* init SMM cpu state */
+
+#ifdef TARGET_X86_64
+ env->efer = 0;
+ env->hflags &= ~HF_LMA_MASK;
+#endif
+ load_eflags(0, ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
+ env->eip = 0x00008000;
+ cpu_x86_load_seg_cache(env, R_CS, (env->smbase >> 4) & 0xffff, env->smbase,
+ 0xffffffff, 0);
+ cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0xffffffff, 0);
+ cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0xffffffff, 0);
+ cpu_x86_load_seg_cache(env, R_SS, 0, 0, 0xffffffff, 0);
+ cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0xffffffff, 0);
+ cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0xffffffff, 0);
+
+ cpu_x86_update_cr0(env,
+ env->cr[0] & ~(CR0_PE_MASK | CR0_EM_MASK | CR0_TS_MASK | CR0_PG_MASK));
+ cpu_x86_update_cr4(env, 0);
+ env->dr[7] = 0x00000400;
+ CC_OP = CC_OP_EFLAGS;
+}
+
+void helper_rsm(void)
+{
+ target_ulong sm_state;
+ int i, offset;
+ uint32_t val;
+
+ sm_state = env->smbase + 0x8000;
+#ifdef TARGET_X86_64
+ env->efer = ldq_phys(sm_state + 0x7ed0);
+ if (env->efer & MSR_EFER_LMA)
+ env->hflags |= HF_LMA_MASK;
+ else
+ env->hflags &= ~HF_LMA_MASK;
+
+ for(i = 0; i < 6; i++) {
+ offset = 0x7e00 + i * 16;
+ cpu_x86_load_seg_cache(env, i,
+ lduw_phys(sm_state + offset),
+ ldq_phys(sm_state + offset + 8),
+ ldl_phys(sm_state + offset + 4),
+ (lduw_phys(sm_state + offset + 2) & 0xf0ff) << 8);
+ }
+
+ env->gdt.base = ldq_phys(sm_state + 0x7e68);
+ env->gdt.limit = ldl_phys(sm_state + 0x7e64);
+
+ env->ldt.selector = lduw_phys(sm_state + 0x7e70);
+ env->ldt.base = ldq_phys(sm_state + 0x7e78);
+ env->ldt.limit = ldl_phys(sm_state + 0x7e74);
+ env->ldt.flags = (lduw_phys(sm_state + 0x7e72) & 0xf0ff) << 8;
+
+ env->idt.base = ldq_phys(sm_state + 0x7e88);
+ env->idt.limit = ldl_phys(sm_state + 0x7e84);
+
+ env->tr.selector = lduw_phys(sm_state + 0x7e90);
+ env->tr.base = ldq_phys(sm_state + 0x7e98);
+ env->tr.limit = ldl_phys(sm_state + 0x7e94);
+ env->tr.flags = (lduw_phys(sm_state + 0x7e92) & 0xf0ff) << 8;
+
+ EAX = ldq_phys(sm_state + 0x7ff8);
+ ECX = ldq_phys(sm_state + 0x7ff0);
+ EDX = ldq_phys(sm_state + 0x7fe8);
+ EBX = ldq_phys(sm_state + 0x7fe0);
+ ESP = ldq_phys(sm_state + 0x7fd8);
+ EBP = ldq_phys(sm_state + 0x7fd0);
+ ESI = ldq_phys(sm_state + 0x7fc8);
+ EDI = ldq_phys(sm_state + 0x7fc0);
+ for(i = 8; i < 16; i++)
+ env->regs[i] = ldq_phys(sm_state + 0x7ff8 - i * 8);
+ env->eip = ldq_phys(sm_state + 0x7f78);
+ load_eflags(ldl_phys(sm_state + 0x7f70),
+ ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
+ env->dr[6] = ldl_phys(sm_state + 0x7f68);
+ env->dr[7] = ldl_phys(sm_state + 0x7f60);
+
+ cpu_x86_update_cr4(env, ldl_phys(sm_state + 0x7f48));
+ cpu_x86_update_cr3(env, ldl_phys(sm_state + 0x7f50));
+ cpu_x86_update_cr0(env, ldl_phys(sm_state + 0x7f58));
+
+ val = ldl_phys(sm_state + 0x7efc); /* revision ID */
+ if (val & 0x20000) {
+ env->smbase = ldl_phys(sm_state + 0x7f00) & ~0x7fff;
+ }
+#else
+ cpu_x86_update_cr0(env, ldl_phys(sm_state + 0x7ffc));
+ cpu_x86_update_cr3(env, ldl_phys(sm_state + 0x7ff8));
+ load_eflags(ldl_phys(sm_state + 0x7ff4),
+ ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
+ env->eip = ldl_phys(sm_state + 0x7ff0);
+ EDI = ldl_phys(sm_state + 0x7fec);
+ ESI = ldl_phys(sm_state + 0x7fe8);
+ EBP = ldl_phys(sm_state + 0x7fe4);
+ ESP = ldl_phys(sm_state + 0x7fe0);
+ EBX = ldl_phys(sm_state + 0x7fdc);
+ EDX = ldl_phys(sm_state + 0x7fd8);
+ ECX = ldl_phys(sm_state + 0x7fd4);
+ EAX = ldl_phys(sm_state + 0x7fd0);
+ env->dr[6] = ldl_phys(sm_state + 0x7fcc);
+ env->dr[7] = ldl_phys(sm_state + 0x7fc8);
+
+ env->tr.selector = ldl_phys(sm_state + 0x7fc4) & 0xffff;
+ env->tr.base = ldl_phys(sm_state + 0x7f64);
+ env->tr.limit = ldl_phys(sm_state + 0x7f60);
+ env->tr.flags = (ldl_phys(sm_state + 0x7f5c) & 0xf0ff) << 8;
+
+ env->ldt.selector = ldl_phys(sm_state + 0x7fc0) & 0xffff;
+ env->ldt.base = ldl_phys(sm_state + 0x7f80);
+ env->ldt.limit = ldl_phys(sm_state + 0x7f7c);
+ env->ldt.flags = (ldl_phys(sm_state + 0x7f78) & 0xf0ff) << 8;
+
+ env->gdt.base = ldl_phys(sm_state + 0x7f74);
+ env->gdt.limit = ldl_phys(sm_state + 0x7f70);
+
+ env->idt.base = ldl_phys(sm_state + 0x7f58);
+ env->idt.limit = ldl_phys(sm_state + 0x7f54);
+
+ for(i = 0; i < 6; i++) {
+ if (i < 3)
+ offset = 0x7f84 + i * 12;
+ else
+ offset = 0x7f2c + (i - 3) * 12;
+ cpu_x86_load_seg_cache(env, i,
+ ldl_phys(sm_state + 0x7fa8 + i * 4) & 0xffff,
+ ldl_phys(sm_state + offset + 8),
+ ldl_phys(sm_state + offset + 4),
+ (ldl_phys(sm_state + offset) & 0xf0ff) << 8);
+ }
+ cpu_x86_update_cr4(env, ldl_phys(sm_state + 0x7f14));
+
+ val = ldl_phys(sm_state + 0x7efc); /* revision ID */
+ if (val & 0x20000) {
+ env->smbase = ldl_phys(sm_state + 0x7ef8) & ~0x7fff;
+ }
+#endif
+ CC_OP = CC_OP_EFLAGS;
+ env->hflags &= ~HF_SMM_MASK;
+ cpu_smm_update(env);
+
+ if (loglevel & CPU_LOG_INT) {
+ fprintf(logfile, "SMM: after RSM\n");
+ cpu_dump_state(env, logfile, fprintf, X86_DUMP_CCOP);
+ }
+}
+
+#endif /* !CONFIG_USER_ONLY */
+
+
#ifdef BUGGY_GCC_DIV64
/* gcc 2.95.4 on PowerPC does not seem to like using __udivdi3, so we
call it from another function */
-uint32_t div32(uint32_t *q_ptr, uint64_t num, uint32_t den)
+uint32_t div32(uint64_t *q_ptr, uint64_t num, uint32_t den)
{
*q_ptr = num / den;
return num % den;
}
-int32_t idiv32(int32_t *q_ptr, int64_t num, int32_t den)
+int32_t idiv32(int64_t *q_ptr, int64_t num, int32_t den)
{
*q_ptr = num / den;
return num % den;
}
#endif
-void helper_divl_EAX_T0(void)
+/* division, flags are undefined */
+
+void helper_divb_AL(target_ulong t0)
{
- unsigned int den, q, r;
- uint64_t num;
-
- num = EAX | ((uint64_t)EDX << 32);
- den = T0;
+ unsigned int num, den, q, r;
+
+ num = (EAX & 0xffff);
+ den = (t0 & 0xff);
+ if (den == 0) {
+ raise_exception(EXCP00_DIVZ);
+ }
+ q = (num / den);
+ if (q > 0xff)
+ raise_exception(EXCP00_DIVZ);
+ q &= 0xff;
+ r = (num % den) & 0xff;
+ EAX = (EAX & ~0xffff) | (r << 8) | q;
+}
+
+void helper_idivb_AL(target_ulong t0)
+{
+ int num, den, q, r;
+
+ num = (int16_t)EAX;
+ den = (int8_t)t0;
+ if (den == 0) {
+ raise_exception(EXCP00_DIVZ);
+ }
+ q = (num / den);
+ if (q != (int8_t)q)
+ raise_exception(EXCP00_DIVZ);
+ q &= 0xff;
+ r = (num % den) & 0xff;
+ EAX = (EAX & ~0xffff) | (r << 8) | q;
+}
+
+void helper_divw_AX(target_ulong t0)
+{
+ unsigned int num, den, q, r;
+
+ num = (EAX & 0xffff) | ((EDX & 0xffff) << 16);
+ den = (t0 & 0xffff);
+ if (den == 0) {
+ raise_exception(EXCP00_DIVZ);
+ }
+ q = (num / den);
+ if (q > 0xffff)
+ raise_exception(EXCP00_DIVZ);
+ q &= 0xffff;
+ r = (num % den) & 0xffff;
+ EAX = (EAX & ~0xffff) | q;
+ EDX = (EDX & ~0xffff) | r;
+}
+
+void helper_idivw_AX(target_ulong t0)
+{
+ int num, den, q, r;
+
+ num = (EAX & 0xffff) | ((EDX & 0xffff) << 16);
+ den = (int16_t)t0;
+ if (den == 0) {
+ raise_exception(EXCP00_DIVZ);
+ }
+ q = (num / den);
+ if (q != (int16_t)q)
+ raise_exception(EXCP00_DIVZ);
+ q &= 0xffff;
+ r = (num % den) & 0xffff;
+ EAX = (EAX & ~0xffff) | q;
+ EDX = (EDX & ~0xffff) | r;
+}
+
+void helper_divl_EAX(target_ulong t0)
+{
+ unsigned int den, r;
+ uint64_t num, q;
+
+ num = ((uint32_t)EAX) | ((uint64_t)((uint32_t)EDX) << 32);
+ den = t0;
if (den == 0) {
raise_exception(EXCP00_DIVZ);
}
q = (num / den);
r = (num % den);
#endif
+ if (q > 0xffffffff)
+ raise_exception(EXCP00_DIVZ);
EAX = (uint32_t)q;
EDX = (uint32_t)r;
}
-void helper_idivl_EAX_T0(void)
+void helper_idivl_EAX(target_ulong t0)
{
- int den, q, r;
- int64_t num;
-
- num = EAX | ((uint64_t)EDX << 32);
- den = T0;
+ int den, r;
+ int64_t num, q;
+
+ num = ((uint32_t)EAX) | ((uint64_t)((uint32_t)EDX) << 32);
+ den = t0;
if (den == 0) {
raise_exception(EXCP00_DIVZ);
}
q = (num / den);
r = (num % den);
#endif
+ if (q != (int32_t)q)
+ raise_exception(EXCP00_DIVZ);
EAX = (uint32_t)q;
EDX = (uint32_t)r;
}
-void helper_cmpxchg8b(void)
+/* bcd */
+
+/* XXX: exception */
+void helper_aam(int base)
+{
+ int al, ah;
+ al = EAX & 0xff;
+ ah = al / base;
+ al = al % base;
+ EAX = (EAX & ~0xffff) | al | (ah << 8);
+ CC_DST = al;
+}
+
+void helper_aad(int base)
{
- uint64_t d;
+ int al, ah;
+ al = EAX & 0xff;
+ ah = (EAX >> 8) & 0xff;
+ al = ((ah * base) + al) & 0xff;
+ EAX = (EAX & ~0xffff) | al;
+ CC_DST = al;
+}
+
+void helper_aaa(void)
+{
+ int icarry;
+ int al, ah, af;
int eflags;
eflags = cc_table[CC_OP].compute_all();
- d = ldq(A0);
- if (d == (((uint64_t)EDX << 32) | EAX)) {
- stq(A0, ((uint64_t)ECX << 32) | EBX);
- eflags |= CC_Z;
+ af = eflags & CC_A;
+ al = EAX & 0xff;
+ ah = (EAX >> 8) & 0xff;
+
+ icarry = (al > 0xf9);
+ if (((al & 0x0f) > 9 ) || af) {
+ al = (al + 6) & 0x0f;
+ ah = (ah + 1 + icarry) & 0xff;
+ eflags |= CC_C | CC_A;
} else {
- EDX = d >> 32;
- EAX = d;
- eflags &= ~CC_Z;
+ eflags &= ~(CC_C | CC_A);
+ al &= 0x0f;
}
+ EAX = (EAX & ~0xffff) | al | (ah << 8);
CC_SRC = eflags;
+ FORCE_RET();
}
-void helper_cpuid(void)
+void helper_aas(void)
{
- switch((uint32_t)EAX) {
- case 0:
- EAX = 2; /* max EAX index supported */
- EBX = env->cpuid_vendor1;
- EDX = env->cpuid_vendor2;
- ECX = env->cpuid_vendor3;
- break;
- case 1:
- EAX = env->cpuid_version;
- EBX = 0;
- ECX = 0;
- EDX = env->cpuid_features;
- break;
- default:
- /* cache info: needed for Pentium Pro compatibility */
- EAX = 0x410601;
- EBX = 0;
- ECX = 0;
- EDX = 0;
- break;
-#ifdef TARGET_X86_64
- case 0x80000000:
- EAX = 0x80000008;
- EBX = env->cpuid_vendor1;
- EDX = env->cpuid_vendor2;
- ECX = env->cpuid_vendor3;
- break;
- case 0x80000001:
- EAX = env->cpuid_features;
+ int icarry;
+ int al, ah, af;
+ int eflags;
+
+ eflags = cc_table[CC_OP].compute_all();
+ af = eflags & CC_A;
+ al = EAX & 0xff;
+ ah = (EAX >> 8) & 0xff;
+
+ icarry = (al < 6);
+ if (((al & 0x0f) > 9 ) || af) {
+ al = (al - 6) & 0x0f;
+ ah = (ah - 1 - icarry) & 0xff;
+ eflags |= CC_C | CC_A;
+ } else {
+ eflags &= ~(CC_C | CC_A);
+ al &= 0x0f;
+ }
+ EAX = (EAX & ~0xffff) | al | (ah << 8);
+ CC_SRC = eflags;
+ FORCE_RET();
+}
+
+void helper_daa(void)
+{
+ int al, af, cf;
+ int eflags;
+
+ eflags = cc_table[CC_OP].compute_all();
+ cf = eflags & CC_C;
+ af = eflags & CC_A;
+ al = EAX & 0xff;
+
+ eflags = 0;
+ if (((al & 0x0f) > 9 ) || af) {
+ al = (al + 6) & 0xff;
+ eflags |= CC_A;
+ }
+ if ((al > 0x9f) || cf) {
+ al = (al + 0x60) & 0xff;
+ eflags |= CC_C;
+ }
+ EAX = (EAX & ~0xff) | al;
+ /* well, speed is not an issue here, so we compute the flags by hand */
+ eflags |= (al == 0) << 6; /* zf */
+ eflags |= parity_table[al]; /* pf */
+ eflags |= (al & 0x80); /* sf */
+ CC_SRC = eflags;
+ FORCE_RET();
+}
+
+void helper_das(void)
+{
+ int al, al1, af, cf;
+ int eflags;
+
+ eflags = cc_table[CC_OP].compute_all();
+ cf = eflags & CC_C;
+ af = eflags & CC_A;
+ al = EAX & 0xff;
+
+ eflags = 0;
+ al1 = al;
+ if (((al & 0x0f) > 9 ) || af) {
+ eflags |= CC_A;
+ if (al < 6 || cf)
+ eflags |= CC_C;
+ al = (al - 6) & 0xff;
+ }
+ if ((al1 > 0x99) || cf) {
+ al = (al - 0x60) & 0xff;
+ eflags |= CC_C;
+ }
+ EAX = (EAX & ~0xff) | al;
+ /* well, speed is not an issue here, so we compute the flags by hand */
+ eflags |= (al == 0) << 6; /* zf */
+ eflags |= parity_table[al]; /* pf */
+ eflags |= (al & 0x80); /* sf */
+ CC_SRC = eflags;
+ FORCE_RET();
+}
+
+void helper_cmpxchg8b(target_ulong a0)
+{
+ uint64_t d;
+ int eflags;
+
+ eflags = cc_table[CC_OP].compute_all();
+ d = ldq(a0);
+ if (d == (((uint64_t)EDX << 32) | EAX)) {
+ stq(a0, ((uint64_t)ECX << 32) | EBX);
+ eflags |= CC_Z;
+ } else {
+ EDX = (uint32_t)(d >> 32);
+ EAX = (uint32_t)d;
+ eflags &= ~CC_Z;
+ }
+ CC_SRC = eflags;
+}
+
+void helper_single_step(void)
+{
+ env->dr[6] |= 0x4000;
+ raise_exception(EXCP01_SSTP);
+}
+
+void helper_cpuid(void)
+{
+ uint32_t index;
+ index = (uint32_t)EAX;
+
+ /* test if maximum index reached */
+ if (index & 0x80000000) {
+ if (index > env->cpuid_xlevel)
+ index = env->cpuid_level;
+ } else {
+ if (index > env->cpuid_level)
+ index = env->cpuid_level;
+ }
+
+ switch(index) {
+ case 0:
+ EAX = env->cpuid_level;
+ EBX = env->cpuid_vendor1;
+ EDX = env->cpuid_vendor2;
+ ECX = env->cpuid_vendor3;
+ break;
+ case 1:
+ EAX = env->cpuid_version;
+ EBX = (env->cpuid_apic_id << 24) | 8 << 8; /* CLFLUSH size in quad words, Linux wants it. */
+ ECX = env->cpuid_ext_features;
+ EDX = env->cpuid_features;
+ break;
+ case 2:
+ /* cache info: needed for Pentium Pro compatibility */
+ EAX = 1;
EBX = 0;
ECX = 0;
- /* long mode + syscall/sysret features */
- EDX = (env->cpuid_features & 0x0183F3FF) | (1 << 29) | (1 << 11);
+ EDX = 0x2c307d;
+ break;
+ case 0x80000000:
+ EAX = env->cpuid_xlevel;
+ EBX = env->cpuid_vendor1;
+ EDX = env->cpuid_vendor2;
+ ECX = env->cpuid_vendor3;
+ break;
+ case 0x80000001:
+ EAX = env->cpuid_features;
+ EBX = 0;
+ ECX = env->cpuid_ext3_features;
+ EDX = env->cpuid_ext2_features;
+ break;
+ case 0x80000002:
+ case 0x80000003:
+ case 0x80000004:
+ EAX = env->cpuid_model[(index - 0x80000002) * 4 + 0];
+ EBX = env->cpuid_model[(index - 0x80000002) * 4 + 1];
+ ECX = env->cpuid_model[(index - 0x80000002) * 4 + 2];
+ EDX = env->cpuid_model[(index - 0x80000002) * 4 + 3];
+ break;
+ case 0x80000005:
+ /* cache info (L1 cache) */
+ EAX = 0x01ff01ff;
+ EBX = 0x01ff01ff;
+ ECX = 0x40020140;
+ EDX = 0x40020140;
+ break;
+ case 0x80000006:
+ /* cache info (L2 cache) */
+ EAX = 0;
+ EBX = 0x42004200;
+ ECX = 0x02008140;
+ EDX = 0;
break;
case 0x80000008:
/* virtual & phys address size in low 2 bytes. */
- EAX = 0x00003028;
+/* XXX: This value must match the one used in the MMU code. */
+#if defined(TARGET_X86_64)
+# if defined(USE_KQEMU)
+ EAX = 0x00003020; /* 48 bits virtual, 32 bits physical */
+# else
+/* XXX: The physical address space is limited to 42 bits in exec.c. */
+ EAX = 0x00003028; /* 48 bits virtual, 40 bits physical */
+# endif
+#else
+# if defined(USE_KQEMU)
+ EAX = 0x00000020; /* 32 bits physical */
+# else
+ EAX = 0x00000024; /* 36 bits physical */
+# endif
+#endif
+ EBX = 0;
+ ECX = 0;
+ EDX = 0;
+ break;
+ case 0x8000000A:
+ EAX = 0x00000001;
+ EBX = 0;
+ ECX = 0;
+ EDX = 0;
+ break;
+ default:
+ /* reserved values: zero */
+ EAX = 0;
EBX = 0;
ECX = 0;
EDX = 0;
break;
-#endif
}
}
-void helper_enter_level(int level, int data32)
+void helper_enter_level(int level, int data32, target_ulong t1)
{
target_ulong ssp;
uint32_t esp_mask, esp, ebp;
stl(ssp + (esp & esp_mask), ldl(ssp + (ebp & esp_mask)));
}
esp -= 4;
- stl(ssp + (esp & esp_mask), T1);
+ stl(ssp + (esp & esp_mask), t1);
} else {
/* 16 bit */
esp -= 2;
stw(ssp + (esp & esp_mask), lduw(ssp + (ebp & esp_mask)));
}
esp -= 2;
- stw(ssp + (esp & esp_mask), T1);
+ stw(ssp + (esp & esp_mask), t1);
}
}
-void helper_lldt_T0(void)
+#ifdef TARGET_X86_64
+void helper_enter64_level(int level, int data64, target_ulong t1)
+{
+ target_ulong esp, ebp;
+ ebp = EBP;
+ esp = ESP;
+
+ if (data64) {
+ /* 64 bit */
+ esp -= 8;
+ while (--level) {
+ esp -= 8;
+ ebp -= 8;
+ stq(esp, ldq(ebp));
+ }
+ esp -= 8;
+ stq(esp, t1);
+ } else {
+ /* 16 bit */
+ esp -= 2;
+ while (--level) {
+ esp -= 2;
+ ebp -= 2;
+ stw(esp, lduw(ebp));
+ }
+ esp -= 2;
+ stw(esp, t1);
+ }
+}
+#endif
+
+void helper_lldt(int selector)
{
- int selector;
SegmentCache *dt;
uint32_t e1, e2;
int index, entry_limit;
target_ulong ptr;
-
- selector = T0 & 0xffff;
+
+ selector &= 0xffff;
if ((selector & 0xfffc) == 0) {
/* XXX: NULL selector case: invalid LDT */
env->ldt.base = 0;
if (env->hflags & HF_LMA_MASK)
entry_limit = 15;
else
-#endif
+#endif
entry_limit = 7;
if ((index + entry_limit) > dt->limit)
raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
env->ldt.selector = selector;
}
-void helper_ltr_T0(void)
+void helper_ltr(int selector)
{
- int selector;
SegmentCache *dt;
uint32_t e1, e2;
int index, type, entry_limit;
target_ulong ptr;
-
- selector = T0 & 0xffff;
+
+ selector &= 0xffff;
if ((selector & 0xfffc) == 0) {
/* NULL selector case: invalid TR */
env->tr.base = 0;
if (env->hflags & HF_LMA_MASK)
entry_limit = 15;
else
-#endif
+#endif
entry_limit = 7;
if ((index + entry_limit) > dt->limit)
raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
e1 = ldl_kernel(ptr);
e2 = ldl_kernel(ptr + 4);
type = (e2 >> DESC_TYPE_SHIFT) & 0xf;
- if ((e2 & DESC_S_MASK) ||
+ if ((e2 & DESC_S_MASK) ||
(type != 1 && type != 9))
raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
if (!(e2 & DESC_P_MASK))
raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
#ifdef TARGET_X86_64
if (env->hflags & HF_LMA_MASK) {
- uint32_t e3;
+ uint32_t e3, e4;
e3 = ldl_kernel(ptr + 8);
+ e4 = ldl_kernel(ptr + 12);
+ if ((e4 >> DESC_TYPE_SHIFT) & 0xf)
+ raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
load_seg_cache_raw_dt(&env->tr, e1, e2);
env->tr.base |= (target_ulong)e3 << 32;
- } else
+ } else
#endif
{
load_seg_cache_raw_dt(&env->tr, e1, e2);
}
/* only works if protected mode and not VM86. seg_reg must be != R_CS */
-void load_seg(int seg_reg, int selector)
+void helper_load_seg(int seg_reg, int selector)
{
uint32_t e1, e2;
int cpl, dpl, rpl;
target_ulong ptr;
selector &= 0xffff;
+ cpl = env->hflags & HF_CPL_MASK;
if ((selector & 0xfffc) == 0) {
/* null selector case */
- if (seg_reg == R_SS)
+ if (seg_reg == R_SS
+#ifdef TARGET_X86_64
+ && (!(env->hflags & HF_CS64_MASK) || cpl == 3)
+#endif
+ )
raise_exception_err(EXCP0D_GPF, 0);
cpu_x86_load_seg_cache(env, seg_reg, selector, 0, 0, 0);
} else {
-
+
if (selector & 0x4)
dt = &env->ldt;
else
ptr = dt->base + index;
e1 = ldl_kernel(ptr);
e2 = ldl_kernel(ptr + 4);
-
+
if (!(e2 & DESC_S_MASK))
raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
rpl = selector & 3;
dpl = (e2 >> DESC_DPL_SHIFT) & 3;
- cpl = env->hflags & HF_CPL_MASK;
if (seg_reg == R_SS) {
/* must be writable segment */
if ((e2 & DESC_CS_MASK) || !(e2 & DESC_W_MASK))
/* must be readable segment */
if ((e2 & (DESC_CS_MASK | DESC_R_MASK)) == DESC_CS_MASK)
raise_exception_err(EXCP0D_GPF, selector & 0xfffc);
-
+
if (!(e2 & DESC_CS_MASK) || !(e2 & DESC_C_MASK)) {
/* if not conforming code, test rights */
if (dpl < cpl || dpl < rpl)
stl_kernel(ptr + 4, e2);
}
- cpu_x86_load_seg_cache(env, seg_reg, selector,
+ cpu_x86_load_seg_cache(env, seg_reg, selector,
get_seg_base(e1, e2),
get_seg_limit(e1, e2),
e2);
#if 0
- fprintf(logfile, "load_seg: sel=0x%04x base=0x%08lx limit=0x%08lx flags=%08x\n",
+ fprintf(logfile, "load_seg: sel=0x%04x base=0x%08lx limit=0x%08lx flags=%08x\n",
selector, (unsigned long)sc->base, sc->limit, sc->flags);
#endif
}
}
/* protected mode jump */
-void helper_ljmp_protected_T0_T1(int next_eip)
+void helper_ljmp_protected(int new_cs, target_ulong new_eip,
+ int next_eip_addend)
{
- int new_cs, gate_cs, type;
+ int gate_cs, type;
uint32_t e1, e2, cpl, dpl, rpl, limit;
- target_ulong new_eip;
-
- new_cs = T0;
- new_eip = T1;
+ target_ulong next_eip;
+
if ((new_cs & 0xfffc) == 0)
raise_exception_err(EXCP0D_GPF, 0);
if (load_segment(&e1, &e2, new_cs) != 0)
if (!(e2 & DESC_P_MASK))
raise_exception_err(EXCP0B_NOSEG, new_cs & 0xfffc);
limit = get_seg_limit(e1, e2);
- if (new_eip > limit)
+ if (new_eip > limit &&
+ !(env->hflags & HF_LMA_MASK) && !(e2 & DESC_L_MASK))
raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
cpu_x86_load_seg_cache(env, R_CS, (new_cs & 0xfffc) | cpl,
get_seg_base(e1, e2), limit, e2);
case 5: /* task gate */
if (dpl < cpl || dpl < rpl)
raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ next_eip = env->eip + next_eip_addend;
switch_tss(new_cs, e1, e2, SWITCH_TSS_JMP, next_eip);
+ CC_OP = CC_OP_EFLAGS;
break;
case 4: /* 286 call gate */
case 12: /* 386 call gate */
raise_exception_err(EXCP0D_GPF, gate_cs & 0xfffc);
dpl = (e2 >> DESC_DPL_SHIFT) & 3;
/* must be code segment */
- if (((e2 & (DESC_S_MASK | DESC_CS_MASK)) !=
+ if (((e2 & (DESC_S_MASK | DESC_CS_MASK)) !=
(DESC_S_MASK | DESC_CS_MASK)))
raise_exception_err(EXCP0D_GPF, gate_cs & 0xfffc);
- if (((e2 & DESC_C_MASK) && (dpl > cpl)) ||
+ if (((e2 & DESC_C_MASK) && (dpl > cpl)) ||
(!(e2 & DESC_C_MASK) && (dpl != cpl)))
raise_exception_err(EXCP0D_GPF, gate_cs & 0xfffc);
if (!(e2 & DESC_P_MASK))
}
/* real mode call */
-void helper_lcall_real_T0_T1(int shift, int next_eip)
+void helper_lcall_real(int new_cs, target_ulong new_eip1,
+ int shift, int next_eip)
{
- int new_cs, new_eip;
+ int new_eip;
uint32_t esp, esp_mask;
target_ulong ssp;
- new_cs = T0;
- new_eip = T1;
+ new_eip = new_eip1;
esp = ESP;
esp_mask = get_sp_mask(env->segs[R_SS].flags);
ssp = env->segs[R_SS].base;
PUSHW(ssp, esp, esp_mask, next_eip);
}
- ESP = (ESP & ~esp_mask) | (esp & esp_mask);
+ SET_ESP(esp, esp_mask);
env->eip = new_eip;
env->segs[R_CS].selector = new_cs;
env->segs[R_CS].base = (new_cs << 4);
}
/* protected mode call */
-void helper_lcall_protected_T0_T1(int shift, int next_eip)
+void helper_lcall_protected(int new_cs, target_ulong new_eip,
+ int shift, int next_eip_addend)
{
- int new_cs, new_eip, new_stack, i;
+ int new_stack, i;
uint32_t e1, e2, cpl, dpl, rpl, selector, offset, param_count;
uint32_t ss, ss_e1, ss_e2, sp, type, ss_dpl, sp_mask;
uint32_t val, limit, old_sp_mask;
- target_ulong ssp, old_ssp;
-
- new_cs = T0;
- new_eip = T1;
+ target_ulong ssp, old_ssp, next_eip;
+
+ next_eip = env->eip + next_eip_addend;
#ifdef DEBUG_PCALL
if (loglevel & CPU_LOG_PCALL) {
fprintf(logfile, "lcall %04x:%08x s=%d\n",
- new_cs, new_eip, shift);
+ new_cs, (uint32_t)new_eip, shift);
cpu_dump_state(env, logfile, fprintf, X86_DUMP_CCOP);
}
#endif
if (!(e2 & DESC_P_MASK))
raise_exception_err(EXCP0B_NOSEG, new_cs & 0xfffc);
- sp = ESP;
- sp_mask = get_sp_mask(env->segs[R_SS].flags);
- ssp = env->segs[R_SS].base;
- if (shift) {
- PUSHL(ssp, sp, sp_mask, env->segs[R_CS].selector);
- PUSHL(ssp, sp, sp_mask, next_eip);
- } else {
- PUSHW(ssp, sp, sp_mask, env->segs[R_CS].selector);
- PUSHW(ssp, sp, sp_mask, next_eip);
+#ifdef TARGET_X86_64
+ /* XXX: check 16/32 bit cases in long mode */
+ if (shift == 2) {
+ target_ulong rsp;
+ /* 64 bit case */
+ rsp = ESP;
+ PUSHQ(rsp, env->segs[R_CS].selector);
+ PUSHQ(rsp, next_eip);
+ /* from this point, not restartable */
+ ESP = rsp;
+ cpu_x86_load_seg_cache(env, R_CS, (new_cs & 0xfffc) | cpl,
+ get_seg_base(e1, e2),
+ get_seg_limit(e1, e2), e2);
+ EIP = new_eip;
+ } else
+#endif
+ {
+ sp = ESP;
+ sp_mask = get_sp_mask(env->segs[R_SS].flags);
+ ssp = env->segs[R_SS].base;
+ if (shift) {
+ PUSHL(ssp, sp, sp_mask, env->segs[R_CS].selector);
+ PUSHL(ssp, sp, sp_mask, next_eip);
+ } else {
+ PUSHW(ssp, sp, sp_mask, env->segs[R_CS].selector);
+ PUSHW(ssp, sp, sp_mask, next_eip);
+ }
+
+ limit = get_seg_limit(e1, e2);
+ if (new_eip > limit)
+ raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
+ /* from this point, not restartable */
+ SET_ESP(sp, sp_mask);
+ cpu_x86_load_seg_cache(env, R_CS, (new_cs & 0xfffc) | cpl,
+ get_seg_base(e1, e2), limit, e2);
+ EIP = new_eip;
}
-
- limit = get_seg_limit(e1, e2);
- if (new_eip > limit)
- raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
- /* from this point, not restartable */
- ESP = (ESP & ~sp_mask) | (sp & sp_mask);
- cpu_x86_load_seg_cache(env, R_CS, (new_cs & 0xfffc) | cpl,
- get_seg_base(e1, e2), limit, e2);
- EIP = new_eip;
} else {
/* check gate type */
type = (e2 >> DESC_TYPE_SHIFT) & 0x1f;
if (dpl < cpl || dpl < rpl)
raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
switch_tss(new_cs, e1, e2, SWITCH_TSS_CALL, next_eip);
+ CC_OP = CC_OP_EFLAGS;
return;
case 4: /* 286 call gate */
case 12: /* 386 call gate */
raise_exception_err(EXCP0B_NOSEG, selector & 0xfffc);
if (!(e2 & DESC_C_MASK) && dpl < cpl) {
- /* to inner priviledge */
+ /* to inner privilege */
get_ss_esp_from_tss(&ss, &sp, dpl);
#ifdef DEBUG_PCALL
if (loglevel & CPU_LOG_PCALL)
- fprintf(logfile, "new ss:esp=%04x:%08x param_count=%d ESP=" TARGET_FMT_lx "\n",
+ fprintf(logfile, "new ss:esp=%04x:%08x param_count=%d ESP=" TARGET_FMT_lx "\n",
ss, sp, param_count, ESP);
#endif
if ((ss & 0xfffc) == 0)
raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
if (!(ss_e2 & DESC_P_MASK))
raise_exception_err(EXCP0A_TSS, ss & 0xfffc);
-
+
// push_size = ((param_count * 2) + 8) << shift;
old_sp_mask = get_sp_mask(env->segs[R_SS].flags);
old_ssp = env->segs[R_SS].base;
-
+
sp_mask = get_sp_mask(ss_e2);
ssp = get_seg_base(ss_e1, ss_e2);
if (shift) {
}
new_stack = 1;
} else {
- /* to same priviledge */
+ /* to same privilege */
sp = ESP;
sp_mask = get_sp_mask(env->segs[R_SS].flags);
ssp = env->segs[R_SS].base;
if (new_stack) {
ss = (ss & ~3) | dpl;
- cpu_x86_load_seg_cache(env, R_SS, ss,
+ cpu_x86_load_seg_cache(env, R_SS, ss,
ssp,
get_seg_limit(ss_e1, ss_e2),
ss_e2);
}
selector = (selector & ~3) | dpl;
- cpu_x86_load_seg_cache(env, R_CS, selector,
+ cpu_x86_load_seg_cache(env, R_CS, selector,
get_seg_base(e1, e2),
get_seg_limit(e1, e2),
e2);
cpu_x86_set_cpl(env, dpl);
- ESP = (ESP & ~sp_mask) | (sp & sp_mask);
+ SET_ESP(sp, sp_mask);
EIP = offset;
}
+#ifdef USE_KQEMU
+ if (kqemu_is_ok(env)) {
+ env->exception_index = -1;
+ cpu_loop_exit();
+ }
+#endif
}
/* real and vm86 mode iret */
if (shift == 0)
eflags_mask &= 0xffff;
load_eflags(new_eflags, eflags_mask);
+ env->hflags &= ~HF_NMI_MASK;
}
static inline void validate_seg(int seg_reg, int cpl)
{
int dpl;
uint32_t e2;
-
+
+ /* XXX: on x86_64, we do not want to nullify FS and GS because
+ they may still contain a valid base. I would be interested to
+ know how a real x86_64 CPU behaves */
+ if ((seg_reg == R_FS || seg_reg == R_GS) &&
+ (env->segs[seg_reg].selector & 0xfffc) == 0)
+ return;
+
e2 = env->segs[seg_reg].flags;
dpl = (e2 >> DESC_DPL_SHIFT) & 3;
if (!(e2 & DESC_CS_MASK) || !(e2 & DESC_C_MASK)) {
uint32_t e1, e2, ss_e1, ss_e2;
int cpl, dpl, rpl, eflags_mask, iopl;
target_ulong ssp, sp, new_eip, new_esp, sp_mask;
-
+
#ifdef TARGET_X86_64
if (shift == 2)
sp_mask = -1;
!(e2 & DESC_CS_MASK))
raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
cpl = env->hflags & HF_CPL_MASK;
- rpl = new_cs & 3;
+ rpl = new_cs & 3;
if (rpl < cpl)
raise_exception_err(EXCP0D_GPF, new_cs & 0xfffc);
dpl = (e2 >> DESC_DPL_SHIFT) & 3;
}
if (!(e2 & DESC_P_MASK))
raise_exception_err(EXCP0B_NOSEG, new_cs & 0xfffc);
-
+
sp += addend;
- if (rpl == cpl && !(env->hflags & HF_CS64_MASK)) {
+ if (rpl == cpl && (!(env->hflags & HF_CS64_MASK) ||
+ ((env->hflags & HF_CS64_MASK) && !is_iret))) {
/* return to same priledge level */
- cpu_x86_load_seg_cache(env, R_CS, new_cs,
+ cpu_x86_load_seg_cache(env, R_CS, new_cs,
get_seg_base(e1, e2),
get_seg_limit(e1, e2),
e2);
} else {
- /* return to different priviledge level */
+ /* return to different privilege level */
#ifdef TARGET_X86_64
if (shift == 2) {
POPQ(sp, new_esp);
new_ss, new_esp);
}
#endif
- if ((env->hflags & HF_LMA_MASK) && (new_ss & 0xfffc) == 0) {
- /* NULL ss is allowed in long mode */
- cpu_x86_load_seg_cache(env, R_SS, new_ss,
- 0, 0xffffffff,
- DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
- DESC_S_MASK | (rpl << DESC_DPL_SHIFT) |
- DESC_W_MASK | DESC_A_MASK);
+ if ((new_ss & 0xfffc) == 0) {
+#ifdef TARGET_X86_64
+ /* NULL ss is allowed in long mode if cpl != 3*/
+ /* XXX: test CS64 ? */
+ if ((env->hflags & HF_LMA_MASK) && rpl != 3) {
+ cpu_x86_load_seg_cache(env, R_SS, new_ss,
+ 0, 0xffffffff,
+ DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
+ DESC_S_MASK | (rpl << DESC_DPL_SHIFT) |
+ DESC_W_MASK | DESC_A_MASK);
+ ss_e2 = DESC_B_MASK; /* XXX: should not be needed ? */
+ } else
+#endif
+ {
+ raise_exception_err(EXCP0D_GPF, 0);
+ }
} else {
if ((new_ss & 3) != rpl)
raise_exception_err(EXCP0D_GPF, new_ss & 0xfffc);
raise_exception_err(EXCP0D_GPF, new_ss & 0xfffc);
if (!(ss_e2 & DESC_P_MASK))
raise_exception_err(EXCP0B_NOSEG, new_ss & 0xfffc);
- cpu_x86_load_seg_cache(env, R_SS, new_ss,
+ cpu_x86_load_seg_cache(env, R_SS, new_ss,
get_seg_base(ss_e1, ss_e2),
get_seg_limit(ss_e1, ss_e2),
ss_e2);
}
- cpu_x86_load_seg_cache(env, R_CS, new_cs,
+ cpu_x86_load_seg_cache(env, R_CS, new_cs,
get_seg_base(e1, e2),
get_seg_limit(e1, e2),
e2);
cpu_x86_set_cpl(env, rpl);
sp = new_esp;
#ifdef TARGET_X86_64
- if (shift == 2)
+ if (env->hflags & HF_CS64_MASK)
sp_mask = -1;
else
#endif
sp_mask = get_sp_mask(ss_e2);
/* validate data segments */
- validate_seg(R_ES, cpl);
- validate_seg(R_DS, cpl);
- validate_seg(R_FS, cpl);
- validate_seg(R_GS, cpl);
+ validate_seg(R_ES, rpl);
+ validate_seg(R_DS, rpl);
+ validate_seg(R_FS, rpl);
+ validate_seg(R_GS, rpl);
sp += addend;
}
- ESP = (ESP & ~sp_mask) | (sp & sp_mask);
+ SET_ESP(sp, sp_mask);
env->eip = new_eip;
if (is_iret) {
/* NOTE: 'cpl' is the _old_ CPL */
POPL(ssp, sp, sp_mask, new_ds);
POPL(ssp, sp, sp_mask, new_fs);
POPL(ssp, sp, sp_mask, new_gs);
-
+
/* modify processor state */
- load_eflags(new_eflags, TF_MASK | AC_MASK | ID_MASK |
+ load_eflags(new_eflags, TF_MASK | AC_MASK | ID_MASK |
IF_MASK | IOPL_MASK | VM_MASK | NT_MASK | VIF_MASK | VIP_MASK);
load_seg_vm(R_CS, new_cs & 0xffff);
cpu_x86_set_cpl(env, 3);
{
int tss_selector, type;
uint32_t e1, e2;
-
+
/* specific case for TSS */
if (env->eflags & NT_MASK) {
#ifdef TARGET_X86_64
} else {
helper_ret_protected(shift, 1, 0);
}
+ env->hflags &= ~HF_NMI_MASK;
+#ifdef USE_KQEMU
+ if (kqemu_is_ok(env)) {
+ CC_OP = CC_OP_EFLAGS;
+ env->exception_index = -1;
+ cpu_loop_exit();
+ }
+#endif
}
void helper_lret_protected(int shift, int addend)
{
helper_ret_protected(shift, 0, addend);
+#ifdef USE_KQEMU
+ if (kqemu_is_ok(env)) {
+ env->exception_index = -1;
+ cpu_loop_exit();
+ }
+#endif
}
void helper_sysenter(void)
}
env->eflags &= ~(VM_MASK | IF_MASK | RF_MASK);
cpu_x86_set_cpl(env, 0);
- cpu_x86_load_seg_cache(env, R_CS, env->sysenter_cs & 0xfffc,
- 0, 0xffffffff,
+ cpu_x86_load_seg_cache(env, R_CS, env->sysenter_cs & 0xfffc,
+ 0, 0xffffffff,
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
DESC_S_MASK |
DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK);
- cpu_x86_load_seg_cache(env, R_SS, (env->sysenter_cs + 8) & 0xfffc,
+ cpu_x86_load_seg_cache(env, R_SS, (env->sysenter_cs + 8) & 0xfffc,
0, 0xffffffff,
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
DESC_S_MASK |
raise_exception_err(EXCP0D_GPF, 0);
}
cpu_x86_set_cpl(env, 3);
- cpu_x86_load_seg_cache(env, R_CS, ((env->sysenter_cs + 16) & 0xfffc) | 3,
- 0, 0xffffffff,
+ cpu_x86_load_seg_cache(env, R_CS, ((env->sysenter_cs + 16) & 0xfffc) | 3,
+ 0, 0xffffffff,
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK);
- cpu_x86_load_seg_cache(env, R_SS, ((env->sysenter_cs + 24) & 0xfffc) | 3,
+ cpu_x86_load_seg_cache(env, R_SS, ((env->sysenter_cs + 24) & 0xfffc) | 3,
0, 0xffffffff,
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK |
DESC_S_MASK | (3 << DESC_DPL_SHIFT) |
DESC_W_MASK | DESC_A_MASK);
ESP = ECX;
EIP = EDX;
+#ifdef USE_KQEMU
+ if (kqemu_is_ok(env)) {
+ env->exception_index = -1;
+ cpu_loop_exit();
+ }
+#endif
}
-void helper_movl_crN_T0(int reg)
+void helper_movl_crN_T0(int reg, target_ulong t0)
{
+#if !defined(CONFIG_USER_ONLY)
switch(reg) {
case 0:
- cpu_x86_update_cr0(env, T0);
+ cpu_x86_update_cr0(env, t0);
break;
case 3:
- cpu_x86_update_cr3(env, T0);
+ cpu_x86_update_cr3(env, t0);
break;
case 4:
- cpu_x86_update_cr4(env, T0);
+ cpu_x86_update_cr4(env, t0);
+ break;
+ case 8:
+ cpu_set_apic_tpr(env, t0);
+ env->cr[8] = t0;
break;
default:
- env->cr[reg] = T0;
+ env->cr[reg] = t0;
break;
}
+#endif
+}
+
+void helper_lmsw(target_ulong t0)
+{
+ /* only 4 lower bits of CR0 are modified. PE cannot be set to zero
+ if already set to one. */
+ t0 = (env->cr[0] & ~0xe) | (t0 & 0xf);
+ helper_movl_crN_T0(0, t0);
+}
+
+void helper_clts(void)
+{
+ env->cr[0] &= ~CR0_TS_MASK;
+ env->hflags &= ~HF_TS_MASK;
+}
+
+#if !defined(CONFIG_USER_ONLY)
+target_ulong helper_movtl_T0_cr8(void)
+{
+ return cpu_get_apic_tpr(env);
}
+#endif
/* XXX: do more */
-void helper_movl_drN_T0(int reg)
+void helper_movl_drN_T0(int reg, target_ulong t0)
{
- env->dr[reg] = T0;
+ env->dr[reg] = t0;
}
-void helper_invlpg(unsigned int addr)
+void helper_invlpg(target_ulong addr)
{
cpu_x86_flush_tlb(env, addr);
}
void helper_rdtsc(void)
{
uint64_t val;
-
+
+ if ((env->cr[4] & CR4_TSD_MASK) && ((env->hflags & HF_CPL_MASK) != 0)) {
+ raise_exception(EXCP0D_GPF);
+ }
val = cpu_get_tsc(env);
EAX = (uint32_t)(val);
EDX = (uint32_t)(val >> 32);
}
-#if defined(CONFIG_USER_ONLY)
+void helper_rdpmc(void)
+{
+ if ((env->cr[4] & CR4_PCE_MASK) && ((env->hflags & HF_CPL_MASK) != 0)) {
+ raise_exception(EXCP0D_GPF);
+ }
+
+ helper_svm_check_intercept_param(SVM_EXIT_RDPMC, 0);
+
+ /* currently unimplemented */
+ raise_exception_err(EXCP06_ILLOP, 0);
+}
+
+#if defined(CONFIG_USER_ONLY)
void helper_wrmsr(void)
{
}
case MSR_IA32_APICBASE:
cpu_set_apic_base(env, val);
break;
-#ifdef TARGET_X86_64
case MSR_EFER:
-#define MSR_EFER_UPDATE_MASK (MSR_EFER_SCE | MSR_EFER_LME | \
- MSR_EFER_NXE | MSR_EFER_FFXSR)
- env->efer = (env->efer & ~MSR_EFER_UPDATE_MASK) |
- (val & MSR_EFER_UPDATE_MASK);
+ {
+ uint64_t update_mask;
+ update_mask = 0;
+ if (env->cpuid_ext2_features & CPUID_EXT2_SYSCALL)
+ update_mask |= MSR_EFER_SCE;
+ if (env->cpuid_ext2_features & CPUID_EXT2_LM)
+ update_mask |= MSR_EFER_LME;
+ if (env->cpuid_ext2_features & CPUID_EXT2_FFXSR)
+ update_mask |= MSR_EFER_FFXSR;
+ if (env->cpuid_ext2_features & CPUID_EXT2_NX)
+ update_mask |= MSR_EFER_NXE;
+ env->efer = (env->efer & ~update_mask) |
+ (val & update_mask);
+ }
break;
case MSR_STAR:
env->star = val;
break;
+ case MSR_PAT:
+ env->pat = val;
+ break;
+ case MSR_VM_HSAVE_PA:
+ env->vm_hsave = val;
+ break;
+#ifdef TARGET_X86_64
case MSR_LSTAR:
env->lstar = val;
break;
#endif
default:
/* XXX: exception ? */
- break;
+ break;
}
}
case MSR_IA32_APICBASE:
val = cpu_get_apic_base(env);
break;
-#ifdef TARGET_X86_64
case MSR_EFER:
val = env->efer;
break;
case MSR_STAR:
val = env->star;
break;
+ case MSR_PAT:
+ val = env->pat;
+ break;
+ case MSR_VM_HSAVE_PA:
+ val = env->vm_hsave;
+ break;
+#ifdef TARGET_X86_64
case MSR_LSTAR:
val = env->lstar;
break;
default:
/* XXX: exception ? */
val = 0;
- break;
+ break;
}
EAX = (uint32_t)(val);
EDX = (uint32_t)(val >> 32);
}
#endif
-void helper_lsl(void)
+uint32_t helper_lsl(uint32_t selector)
{
- unsigned int selector, limit;
- uint32_t e1, e2;
+ unsigned int limit;
+ uint32_t e1, e2, eflags;
int rpl, dpl, cpl, type;
- CC_SRC = cc_table[CC_OP].compute_all() & ~CC_Z;
- selector = T0 & 0xffff;
+ selector &= 0xffff;
+ eflags = cc_table[CC_OP].compute_all();
if (load_segment(&e1, &e2, selector) != 0)
- return;
+ goto fail;
rpl = selector & 3;
dpl = (e2 >> DESC_DPL_SHIFT) & 3;
cpl = env->hflags & HF_CPL_MASK;
/* conforming */
} else {
if (dpl < cpl || dpl < rpl)
- return;
+ goto fail;
}
} else {
type = (e2 >> DESC_TYPE_SHIFT) & 0xf;
case 11:
break;
default:
- return;
+ goto fail;
+ }
+ if (dpl < cpl || dpl < rpl) {
+ fail:
+ CC_SRC = eflags & ~CC_Z;
+ return 0;
}
- if (dpl < cpl || dpl < rpl)
- return;
}
limit = get_seg_limit(e1, e2);
- T1 = limit;
- CC_SRC |= CC_Z;
+ CC_SRC = eflags | CC_Z;
+ return limit;
}
-void helper_lar(void)
+uint32_t helper_lar(uint32_t selector)
{
- unsigned int selector;
- uint32_t e1, e2;
+ uint32_t e1, e2, eflags;
int rpl, dpl, cpl, type;
- CC_SRC = cc_table[CC_OP].compute_all() & ~CC_Z;
- selector = T0 & 0xffff;
+ selector &= 0xffff;
+ eflags = cc_table[CC_OP].compute_all();
if ((selector & 0xfffc) == 0)
- return;
+ goto fail;
if (load_segment(&e1, &e2, selector) != 0)
- return;
+ goto fail;
rpl = selector & 3;
dpl = (e2 >> DESC_DPL_SHIFT) & 3;
cpl = env->hflags & HF_CPL_MASK;
/* conforming */
} else {
if (dpl < cpl || dpl < rpl)
- return;
+ goto fail;
}
} else {
type = (e2 >> DESC_TYPE_SHIFT) & 0xf;
case 12:
break;
default:
- return;
+ goto fail;
+ }
+ if (dpl < cpl || dpl < rpl) {
+ fail:
+ CC_SRC = eflags & ~CC_Z;
+ return 0;
}
- if (dpl < cpl || dpl < rpl)
- return;
}
- T1 = e2 & 0x00f0ff00;
- CC_SRC |= CC_Z;
+ CC_SRC = eflags | CC_Z;
+ return e2 & 0x00f0ff00;
}
-void helper_verr(void)
+void helper_verr(uint32_t selector)
{
- unsigned int selector;
- uint32_t e1, e2;
+ uint32_t e1, e2, eflags;
int rpl, dpl, cpl;
- CC_SRC = cc_table[CC_OP].compute_all() & ~CC_Z;
- selector = T0 & 0xffff;
+ selector &= 0xffff;
+ eflags = cc_table[CC_OP].compute_all();
if ((selector & 0xfffc) == 0)
- return;
+ goto fail;
if (load_segment(&e1, &e2, selector) != 0)
- return;
+ goto fail;
if (!(e2 & DESC_S_MASK))
- return;
+ goto fail;
rpl = selector & 3;
dpl = (e2 >> DESC_DPL_SHIFT) & 3;
cpl = env->hflags & HF_CPL_MASK;
if (e2 & DESC_CS_MASK) {
if (!(e2 & DESC_R_MASK))
- return;
+ goto fail;
if (!(e2 & DESC_C_MASK)) {
if (dpl < cpl || dpl < rpl)
- return;
+ goto fail;
}
} else {
- if (dpl < cpl || dpl < rpl)
+ if (dpl < cpl || dpl < rpl) {
+ fail:
+ CC_SRC = eflags & ~CC_Z;
return;
+ }
}
- CC_SRC |= CC_Z;
+ CC_SRC = eflags | CC_Z;
}
-void helper_verw(void)
+void helper_verw(uint32_t selector)
{
- unsigned int selector;
- uint32_t e1, e2;
+ uint32_t e1, e2, eflags;
int rpl, dpl, cpl;
- CC_SRC = cc_table[CC_OP].compute_all() & ~CC_Z;
- selector = T0 & 0xffff;
+ selector &= 0xffff;
+ eflags = cc_table[CC_OP].compute_all();
if ((selector & 0xfffc) == 0)
- return;
+ goto fail;
if (load_segment(&e1, &e2, selector) != 0)
- return;
+ goto fail;
if (!(e2 & DESC_S_MASK))
- return;
+ goto fail;
rpl = selector & 3;
dpl = (e2 >> DESC_DPL_SHIFT) & 3;
cpl = env->hflags & HF_CPL_MASK;
if (e2 & DESC_CS_MASK) {
- return;
+ goto fail;
} else {
if (dpl < cpl || dpl < rpl)
+ goto fail;
+ if (!(e2 & DESC_W_MASK)) {
+ fail:
+ CC_SRC = eflags & ~CC_Z;
return;
- if (!(e2 & DESC_W_MASK))
- return;
+ }
}
- CC_SRC |= CC_Z;
-}
-
-/* FPU helpers */
-
-void helper_fldt_ST0_A0(void)
-{
- int new_fpstt;
- new_fpstt = (env->fpstt - 1) & 7;
- env->fpregs[new_fpstt].d = helper_fldt(A0);
- env->fpstt = new_fpstt;
- env->fptags[new_fpstt] = 0; /* validate stack entry */
+ CC_SRC = eflags | CC_Z;
}
-void helper_fstt_ST0_A0(void)
-{
- helper_fstt(ST0, A0);
-}
+/* x87 FPU helpers */
-void fpu_set_exception(int mask)
+static void fpu_set_exception(int mask)
{
env->fpus |= mask;
if (env->fpus & (~env->fpuc & FPUC_EM))
env->fpus |= FPUS_SE | FPUS_B;
}
-CPU86_LDouble helper_fdiv(CPU86_LDouble a, CPU86_LDouble b)
+static inline CPU86_LDouble helper_fdiv(CPU86_LDouble a, CPU86_LDouble b)
{
- if (b == 0.0)
+ if (b == 0.0)
fpu_set_exception(FPUS_ZE);
return a / b;
}
{
if (env->cr[0] & CR0_NE_MASK) {
raise_exception(EXCP10_COPR);
- }
-#if !defined(CONFIG_USER_ONLY)
+ }
+#if !defined(CONFIG_USER_ONLY)
else {
cpu_set_ferr(env);
}
#endif
}
+void helper_flds_FT0(uint32_t val)
+{
+ union {
+ float32 f;
+ uint32_t i;
+ } u;
+ u.i = val;
+ FT0 = float32_to_floatx(u.f, &env->fp_status);
+}
+
+void helper_fldl_FT0(uint64_t val)
+{
+ union {
+ float64 f;
+ uint64_t i;
+ } u;
+ u.i = val;
+ FT0 = float64_to_floatx(u.f, &env->fp_status);
+}
+
+void helper_fildl_FT0(int32_t val)
+{
+ FT0 = int32_to_floatx(val, &env->fp_status);
+}
+
+void helper_flds_ST0(uint32_t val)
+{
+ int new_fpstt;
+ union {
+ float32 f;
+ uint32_t i;
+ } u;
+ new_fpstt = (env->fpstt - 1) & 7;
+ u.i = val;
+ env->fpregs[new_fpstt].d = float32_to_floatx(u.f, &env->fp_status);
+ env->fpstt = new_fpstt;
+ env->fptags[new_fpstt] = 0; /* validate stack entry */
+}
+
+void helper_fldl_ST0(uint64_t val)
+{
+ int new_fpstt;
+ union {
+ float64 f;
+ uint64_t i;
+ } u;
+ new_fpstt = (env->fpstt - 1) & 7;
+ u.i = val;
+ env->fpregs[new_fpstt].d = float64_to_floatx(u.f, &env->fp_status);
+ env->fpstt = new_fpstt;
+ env->fptags[new_fpstt] = 0; /* validate stack entry */
+}
+
+void helper_fildl_ST0(int32_t val)
+{
+ int new_fpstt;
+ new_fpstt = (env->fpstt - 1) & 7;
+ env->fpregs[new_fpstt].d = int32_to_floatx(val, &env->fp_status);
+ env->fpstt = new_fpstt;
+ env->fptags[new_fpstt] = 0; /* validate stack entry */
+}
+
+void helper_fildll_ST0(int64_t val)
+{
+ int new_fpstt;
+ new_fpstt = (env->fpstt - 1) & 7;
+ env->fpregs[new_fpstt].d = int64_to_floatx(val, &env->fp_status);
+ env->fpstt = new_fpstt;
+ env->fptags[new_fpstt] = 0; /* validate stack entry */
+}
+
+uint32_t helper_fsts_ST0(void)
+{
+ union {
+ float32 f;
+ uint32_t i;
+ } u;
+ u.f = floatx_to_float32(ST0, &env->fp_status);
+ return u.i;
+}
+
+uint64_t helper_fstl_ST0(void)
+{
+ union {
+ float64 f;
+ uint64_t i;
+ } u;
+ u.f = floatx_to_float64(ST0, &env->fp_status);
+ return u.i;
+}
+
+int32_t helper_fist_ST0(void)
+{
+ int32_t val;
+ val = floatx_to_int32(ST0, &env->fp_status);
+ if (val != (int16_t)val)
+ val = -32768;
+ return val;
+}
+
+int32_t helper_fistl_ST0(void)
+{
+ int32_t val;
+ val = floatx_to_int32(ST0, &env->fp_status);
+ return val;
+}
+
+int64_t helper_fistll_ST0(void)
+{
+ int64_t val;
+ val = floatx_to_int64(ST0, &env->fp_status);
+ return val;
+}
+
+int32_t helper_fistt_ST0(void)
+{
+ int32_t val;
+ val = floatx_to_int32_round_to_zero(ST0, &env->fp_status);
+ if (val != (int16_t)val)
+ val = -32768;
+ return val;
+}
+
+int32_t helper_fisttl_ST0(void)
+{
+ int32_t val;
+ val = floatx_to_int32_round_to_zero(ST0, &env->fp_status);
+ return val;
+}
+
+int64_t helper_fisttll_ST0(void)
+{
+ int64_t val;
+ val = floatx_to_int64_round_to_zero(ST0, &env->fp_status);
+ return val;
+}
+
+void helper_fldt_ST0(target_ulong ptr)
+{
+ int new_fpstt;
+ new_fpstt = (env->fpstt - 1) & 7;
+ env->fpregs[new_fpstt].d = helper_fldt(ptr);
+ env->fpstt = new_fpstt;
+ env->fptags[new_fpstt] = 0; /* validate stack entry */
+}
+
+void helper_fstt_ST0(target_ulong ptr)
+{
+ helper_fstt(ST0, ptr);
+}
+
+void helper_fpush(void)
+{
+ fpush();
+}
+
+void helper_fpop(void)
+{
+ fpop();
+}
+
+void helper_fdecstp(void)
+{
+ env->fpstt = (env->fpstt - 1) & 7;
+ env->fpus &= (~0x4700);
+}
+
+void helper_fincstp(void)
+{
+ env->fpstt = (env->fpstt + 1) & 7;
+ env->fpus &= (~0x4700);
+}
+
+/* FPU move */
+
+void helper_ffree_STN(int st_index)
+{
+ env->fptags[(env->fpstt + st_index) & 7] = 1;
+}
+
+void helper_fmov_ST0_FT0(void)
+{
+ ST0 = FT0;
+}
+
+void helper_fmov_FT0_STN(int st_index)
+{
+ FT0 = ST(st_index);
+}
+
+void helper_fmov_ST0_STN(int st_index)
+{
+ ST0 = ST(st_index);
+}
+
+void helper_fmov_STN_ST0(int st_index)
+{
+ ST(st_index) = ST0;
+}
+
+void helper_fxchg_ST0_STN(int st_index)
+{
+ CPU86_LDouble tmp;
+ tmp = ST(st_index);
+ ST(st_index) = ST0;
+ ST0 = tmp;
+}
+
+/* FPU operations */
+
+static const int fcom_ccval[4] = {0x0100, 0x4000, 0x0000, 0x4500};
+
+void helper_fcom_ST0_FT0(void)
+{
+ int ret;
+
+ ret = floatx_compare(ST0, FT0, &env->fp_status);
+ env->fpus = (env->fpus & ~0x4500) | fcom_ccval[ret + 1];
+ FORCE_RET();
+}
+
+void helper_fucom_ST0_FT0(void)
+{
+ int ret;
+
+ ret = floatx_compare_quiet(ST0, FT0, &env->fp_status);
+ env->fpus = (env->fpus & ~0x4500) | fcom_ccval[ret+ 1];
+ FORCE_RET();
+}
+
+static const int fcomi_ccval[4] = {CC_C, CC_Z, 0, CC_Z | CC_P | CC_C};
+
+void helper_fcomi_ST0_FT0(void)
+{
+ int eflags;
+ int ret;
+
+ ret = floatx_compare(ST0, FT0, &env->fp_status);
+ eflags = cc_table[CC_OP].compute_all();
+ eflags = (eflags & ~(CC_Z | CC_P | CC_C)) | fcomi_ccval[ret + 1];
+ CC_SRC = eflags;
+ FORCE_RET();
+}
+
+void helper_fucomi_ST0_FT0(void)
+{
+ int eflags;
+ int ret;
+
+ ret = floatx_compare_quiet(ST0, FT0, &env->fp_status);
+ eflags = cc_table[CC_OP].compute_all();
+ eflags = (eflags & ~(CC_Z | CC_P | CC_C)) | fcomi_ccval[ret + 1];
+ CC_SRC = eflags;
+ FORCE_RET();
+}
+
+void helper_fadd_ST0_FT0(void)
+{
+ ST0 += FT0;
+}
+
+void helper_fmul_ST0_FT0(void)
+{
+ ST0 *= FT0;
+}
+
+void helper_fsub_ST0_FT0(void)
+{
+ ST0 -= FT0;
+}
+
+void helper_fsubr_ST0_FT0(void)
+{
+ ST0 = FT0 - ST0;
+}
+
+void helper_fdiv_ST0_FT0(void)
+{
+ ST0 = helper_fdiv(ST0, FT0);
+}
+
+void helper_fdivr_ST0_FT0(void)
+{
+ ST0 = helper_fdiv(FT0, ST0);
+}
+
+/* fp operations between STN and ST0 */
+
+void helper_fadd_STN_ST0(int st_index)
+{
+ ST(st_index) += ST0;
+}
+
+void helper_fmul_STN_ST0(int st_index)
+{
+ ST(st_index) *= ST0;
+}
+
+void helper_fsub_STN_ST0(int st_index)
+{
+ ST(st_index) -= ST0;
+}
+
+void helper_fsubr_STN_ST0(int st_index)
+{
+ CPU86_LDouble *p;
+ p = &ST(st_index);
+ *p = ST0 - *p;
+}
+
+void helper_fdiv_STN_ST0(int st_index)
+{
+ CPU86_LDouble *p;
+ p = &ST(st_index);
+ *p = helper_fdiv(*p, ST0);
+}
+
+void helper_fdivr_STN_ST0(int st_index)
+{
+ CPU86_LDouble *p;
+ p = &ST(st_index);
+ *p = helper_fdiv(ST0, *p);
+}
+
+/* misc FPU operations */
+void helper_fchs_ST0(void)
+{
+ ST0 = floatx_chs(ST0);
+}
+
+void helper_fabs_ST0(void)
+{
+ ST0 = floatx_abs(ST0);
+}
+
+void helper_fld1_ST0(void)
+{
+ ST0 = f15rk[1];
+}
+
+void helper_fldl2t_ST0(void)
+{
+ ST0 = f15rk[6];
+}
+
+void helper_fldl2e_ST0(void)
+{
+ ST0 = f15rk[5];
+}
+
+void helper_fldpi_ST0(void)
+{
+ ST0 = f15rk[2];
+}
+
+void helper_fldlg2_ST0(void)
+{
+ ST0 = f15rk[3];
+}
+
+void helper_fldln2_ST0(void)
+{
+ ST0 = f15rk[4];
+}
+
+void helper_fldz_ST0(void)
+{
+ ST0 = f15rk[0];
+}
+
+void helper_fldz_FT0(void)
+{
+ FT0 = f15rk[0];
+}
+
+uint32_t helper_fnstsw(void)
+{
+ return (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
+}
+
+uint32_t helper_fnstcw(void)
+{
+ return env->fpuc;
+}
+
+static void update_fp_status(void)
+{
+ int rnd_type;
+
+ /* set rounding mode */
+ switch(env->fpuc & RC_MASK) {
+ default:
+ case RC_NEAR:
+ rnd_type = float_round_nearest_even;
+ break;
+ case RC_DOWN:
+ rnd_type = float_round_down;
+ break;
+ case RC_UP:
+ rnd_type = float_round_up;
+ break;
+ case RC_CHOP:
+ rnd_type = float_round_to_zero;
+ break;
+ }
+ set_float_rounding_mode(rnd_type, &env->fp_status);
+#ifdef FLOATX80
+ switch((env->fpuc >> 8) & 3) {
+ case 0:
+ rnd_type = 32;
+ break;
+ case 2:
+ rnd_type = 64;
+ break;
+ case 3:
+ default:
+ rnd_type = 80;
+ break;
+ }
+ set_floatx80_rounding_precision(rnd_type, &env->fp_status);
+#endif
+}
+
+void helper_fldcw(uint32_t val)
+{
+ env->fpuc = val;
+ update_fp_status();
+}
+
+void helper_fclex(void)
+{
+ env->fpus &= 0x7f00;
+}
+
+void helper_fwait(void)
+{
+ if (env->fpus & FPUS_SE)
+ fpu_raise_exception();
+ FORCE_RET();
+}
+
+void helper_fninit(void)
+{
+ env->fpus = 0;
+ env->fpstt = 0;
+ env->fpuc = 0x37f;
+ env->fptags[0] = 1;
+ env->fptags[1] = 1;
+ env->fptags[2] = 1;
+ env->fptags[3] = 1;
+ env->fptags[4] = 1;
+ env->fptags[5] = 1;
+ env->fptags[6] = 1;
+ env->fptags[7] = 1;
+}
+
/* BCD ops */
-void helper_fbld_ST0_A0(void)
+void helper_fbld_ST0(target_ulong ptr)
{
CPU86_LDouble tmp;
uint64_t val;
val = 0;
for(i = 8; i >= 0; i--) {
- v = ldub(A0 + i);
+ v = ldub(ptr + i);
val = (val * 100) + ((v >> 4) * 10) + (v & 0xf);
}
tmp = val;
- if (ldub(A0 + 9) & 0x80)
+ if (ldub(ptr + 9) & 0x80)
tmp = -tmp;
fpush();
ST0 = tmp;
}
-void helper_fbst_ST0_A0(void)
+void helper_fbst_ST0(target_ulong ptr)
{
- CPU86_LDouble tmp;
int v;
target_ulong mem_ref, mem_end;
int64_t val;
- tmp = rint(ST0);
- val = (int64_t)tmp;
- mem_ref = A0;
+ val = floatx_to_int64(ST0, &env->fp_status);
+ mem_ref = ptr;
mem_end = mem_ref + 9;
if (val < 0) {
stb(mem_end, 0x80);
void helper_fyl2x(void)
{
CPU86_LDouble fptemp;
-
+
fptemp = ST0;
if (fptemp>0.0){
fptemp = log(fptemp)/log(2.0); /* log2(ST) */
ST1 *= fptemp;
fpop();
- } else {
+ } else {
env->fpus &= (~0x4700);
env->fpus |= 0x400;
}
CPU86_LDouble dblq, fpsrcop, fptemp;
CPU86_LDoubleU fpsrcop1, fptemp1;
int expdif;
- int q;
+ signed long long int q;
+
+ if (isinf(ST0) || isnan(ST0) || isnan(ST1) || (ST1 == 0.0)) {
+ ST0 = 0.0 / 0.0; /* NaN */
+ env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
+ return;
+ }
fpsrcop = ST0;
fptemp = ST1;
fpsrcop1.d = fpsrcop;
fptemp1.d = fptemp;
expdif = EXPD(fpsrcop1) - EXPD(fptemp1);
+
+ if (expdif < 0) {
+ /* optimisation? taken from the AMD docs */
+ env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
+ /* ST0 is unchanged */
+ return;
+ }
+
if (expdif < 53) {
dblq = fpsrcop / fptemp;
- dblq = (dblq < 0.0)? ceil(dblq): floor(dblq);
- ST0 = fpsrcop - fptemp*dblq;
- q = (int)dblq; /* cutting off top bits is assumed here */
+ /* round dblq towards nearest integer */
+ dblq = rint(dblq);
+ ST0 = fpsrcop - fptemp * dblq;
+
+ /* convert dblq to q by truncating towards zero */
+ if (dblq < 0.0)
+ q = (signed long long int)(-dblq);
+ else
+ q = (signed long long int)dblq;
+
env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
- /* (C0,C1,C3) <-- (q2,q1,q0) */
- env->fpus |= (q&0x4) << 6; /* (C0) <-- q2 */
- env->fpus |= (q&0x2) << 8; /* (C1) <-- q1 */
- env->fpus |= (q&0x1) << 14; /* (C3) <-- q0 */
+ /* (C0,C3,C1) <-- (q2,q1,q0) */
+ env->fpus |= (q & 0x4) << (8 - 2); /* (C0) <-- q2 */
+ env->fpus |= (q & 0x2) << (14 - 1); /* (C3) <-- q1 */
+ env->fpus |= (q & 0x1) << (9 - 0); /* (C1) <-- q0 */
} else {
env->fpus |= 0x400; /* C2 <-- 1 */
- fptemp = pow(2.0, expdif-50);
+ fptemp = pow(2.0, expdif - 50);
fpsrcop = (ST0 / ST1) / fptemp;
- /* fpsrcop = integer obtained by rounding to the nearest */
- fpsrcop = (fpsrcop-floor(fpsrcop) < ceil(fpsrcop)-fpsrcop)?
- floor(fpsrcop): ceil(fpsrcop);
+ /* fpsrcop = integer obtained by chopping */
+ fpsrcop = (fpsrcop < 0.0) ?
+ -(floor(fabs(fpsrcop))) : floor(fpsrcop);
ST0 -= (ST1 * fpsrcop * fptemp);
}
}
CPU86_LDouble dblq, fpsrcop, fptemp;
CPU86_LDoubleU fpsrcop1, fptemp1;
int expdif;
- int q;
-
- fpsrcop = ST0;
- fptemp = ST1;
+ signed long long int q;
+
+ if (isinf(ST0) || isnan(ST0) || isnan(ST1) || (ST1 == 0.0)) {
+ ST0 = 0.0 / 0.0; /* NaN */
+ env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
+ return;
+ }
+
+ fpsrcop = (CPU86_LDouble)ST0;
+ fptemp = (CPU86_LDouble)ST1;
fpsrcop1.d = fpsrcop;
fptemp1.d = fptemp;
expdif = EXPD(fpsrcop1) - EXPD(fptemp1);
+
+ if (expdif < 0) {
+ /* optimisation? taken from the AMD docs */
+ env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
+ /* ST0 is unchanged */
+ return;
+ }
+
if ( expdif < 53 ) {
- dblq = fpsrcop / fptemp;
- dblq = (dblq < 0.0)? ceil(dblq): floor(dblq);
- ST0 = fpsrcop - fptemp*dblq;
- q = (int)dblq; /* cutting off top bits is assumed here */
+ dblq = fpsrcop/*ST0*/ / fptemp/*ST1*/;
+ /* round dblq towards zero */
+ dblq = (dblq < 0.0) ? ceil(dblq) : floor(dblq);
+ ST0 = fpsrcop/*ST0*/ - fptemp * dblq;
+
+ /* convert dblq to q by truncating towards zero */
+ if (dblq < 0.0)
+ q = (signed long long int)(-dblq);
+ else
+ q = (signed long long int)dblq;
+
env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
- /* (C0,C1,C3) <-- (q2,q1,q0) */
- env->fpus |= (q&0x4) << 6; /* (C0) <-- q2 */
- env->fpus |= (q&0x2) << 8; /* (C1) <-- q1 */
- env->fpus |= (q&0x1) << 14; /* (C3) <-- q0 */
+ /* (C0,C3,C1) <-- (q2,q1,q0) */
+ env->fpus |= (q & 0x4) << (8 - 2); /* (C0) <-- q2 */
+ env->fpus |= (q & 0x2) << (14 - 1); /* (C3) <-- q1 */
+ env->fpus |= (q & 0x1) << (9 - 0); /* (C1) <-- q0 */
} else {
+ int N = 32 + (expdif % 32); /* as per AMD docs */
env->fpus |= 0x400; /* C2 <-- 1 */
- fptemp = pow(2.0, expdif-50);
+ fptemp = pow(2.0, (double)(expdif - N));
fpsrcop = (ST0 / ST1) / fptemp;
/* fpsrcop = integer obtained by chopping */
- fpsrcop = (fpsrcop < 0.0)?
- -(floor(fabs(fpsrcop))): floor(fpsrcop);
+ fpsrcop = (fpsrcop < 0.0) ?
+ -(floor(fabs(fpsrcop))) : floor(fpsrcop);
ST0 -= (ST1 * fpsrcop * fptemp);
}
}
fptemp = log(fptemp+1.0) / log(2.0); /* log2(ST+1.0) */
ST1 *= fptemp;
fpop();
- } else {
+ } else {
env->fpus &= (~0x4700);
env->fpus |= 0x400;
}
CPU86_LDouble fptemp;
fptemp = ST0;
- if (fptemp<0.0) {
+ if (fptemp<0.0) {
env->fpus &= (~0x4700); /* (C3,C2,C1,C0) <-- 0000 */
env->fpus |= 0x400;
}
void helper_frndint(void)
{
- CPU86_LDouble a;
-
- a = ST0;
-#ifdef __arm__
- switch(env->fpuc & RC_MASK) {
- default:
- case RC_NEAR:
- asm("rndd %0, %1" : "=f" (a) : "f"(a));
- break;
- case RC_DOWN:
- asm("rnddm %0, %1" : "=f" (a) : "f"(a));
- break;
- case RC_UP:
- asm("rnddp %0, %1" : "=f" (a) : "f"(a));
- break;
- case RC_CHOP:
- asm("rnddz %0, %1" : "=f" (a) : "f"(a));
- break;
- }
-#else
- a = rint(a);
-#endif
- ST0 = a;
+ ST0 = floatx_round_to_int(ST0, &env->fp_status);
}
void helper_fscale(void)
{
- CPU86_LDouble fpsrcop, fptemp;
-
- fpsrcop = 2.0;
- fptemp = pow(fpsrcop,ST1);
- ST0 *= fptemp;
+ ST0 = ldexp (ST0, (int)(ST1));
}
void helper_fsin(void)
if (SIGND(temp))
env->fpus |= 0x200; /* C1 <-- 1 */
+ /* XXX: test fptags too */
expdif = EXPD(temp);
if (expdif == MAXEXPD) {
+#ifdef USE_X86LDOUBLE
+ if (MANTD(temp) == 0x8000000000000000ULL)
+#else
if (MANTD(temp) == 0)
+#endif
env->fpus |= 0x500 /*Infinity*/;
else
env->fpus |= 0x100 /*NaN*/;
helper_fstt(tmp, addr);
addr += 16;
}
-
+
if (env->cr[4] & CR4_OSFXSR_MASK) {
/* XXX: finish it */
stl(ptr + 0x18, env->mxcsr); /* mxcsr */
}
if (env->cr[4] & CR4_OSFXSR_MASK) {
- /* XXX: finish it, endianness */
+ /* XXX: finish it */
env->mxcsr = ldl(ptr + 0x18);
//ldl(ptr + 0x1c);
nb_xmm_regs = 8 << data64;
add128(plow, phigh, 1, 0);
}
-static void mul64(uint64_t *plow, uint64_t *phigh, uint64_t a, uint64_t b)
-{
- uint32_t a0, a1, b0, b1;
- uint64_t v;
-
- a0 = a;
- a1 = a >> 32;
-
- b0 = b;
- b1 = b >> 32;
-
- v = (uint64_t)a0 * (uint64_t)b0;
- *plow = v;
- *phigh = 0;
-
- v = (uint64_t)a0 * (uint64_t)b1;
- add128(plow, phigh, v << 32, v >> 32);
-
- v = (uint64_t)a1 * (uint64_t)b0;
- add128(plow, phigh, v << 32, v >> 32);
-
- v = (uint64_t)a1 * (uint64_t)b1;
- *phigh += v;
-#ifdef DEBUG_MULDIV
- printf("mul: 0x%016llx * 0x%016llx = 0x%016llx%016llx\n",
- a, b, *phigh, *plow);
-#endif
-}
-
-static void imul64(uint64_t *plow, uint64_t *phigh, int64_t a, int64_t b)
-{
- int sa, sb;
- sa = (a < 0);
- if (sa)
- a = -a;
- sb = (b < 0);
- if (sb)
- b = -b;
- mul64(plow, phigh, a, b);
- if (sa ^ sb) {
- neg128(plow, phigh);
- }
-}
-
-/* XXX: overflow support */
-static void div64(uint64_t *plow, uint64_t *phigh, uint64_t b)
+/* return TRUE if overflow */
+static int div64(uint64_t *plow, uint64_t *phigh, uint64_t b)
{
uint64_t q, r, a1, a0;
- int i, qb;
+ int i, qb, ab;
a0 = *plow;
a1 = *phigh;
*plow = q;
*phigh = r;
} else {
+ if (a1 >= b)
+ return 1;
/* XXX: use a better algorithm */
for(i = 0; i < 64; i++) {
+ ab = a1 >> 63;
a1 = (a1 << 1) | (a0 >> 63);
- if (a1 >= b) {
+ if (ab || a1 >= b) {
a1 -= b;
qb = 1;
} else {
a0 = (a0 << 1) | qb;
}
#if defined(DEBUG_MULDIV)
- printf("div: 0x%016llx%016llx / 0x%016llx: q=0x%016llx r=0x%016llx\n",
+ printf("div: 0x%016" PRIx64 "%016" PRIx64 " / 0x%016" PRIx64 ": q=0x%016" PRIx64 " r=0x%016" PRIx64 "\n",
*phigh, *plow, b, a0, a1);
#endif
*plow = a0;
*phigh = a1;
}
+ return 0;
}
-static void idiv64(uint64_t *plow, uint64_t *phigh, uint64_t b)
+/* return TRUE if overflow */
+static int idiv64(uint64_t *plow, uint64_t *phigh, int64_t b)
{
int sa, sb;
sa = ((int64_t)*phigh < 0);
sb = (b < 0);
if (sb)
b = -b;
- div64(plow, phigh, b);
- if (sa ^ sb)
+ if (div64(plow, phigh, b) != 0)
+ return 1;
+ if (sa ^ sb) {
+ if (*plow > (1ULL << 63))
+ return 1;
*plow = - *plow;
- if (sb)
+ } else {
+ if (*plow >= (1ULL << 63))
+ return 1;
+ }
+ if (sa)
*phigh = - *phigh;
+ return 0;
}
-void helper_mulq_EAX_T0(void)
+void helper_mulq_EAX_T0(target_ulong t0)
{
uint64_t r0, r1;
- mul64(&r0, &r1, EAX, T0);
+ mulu64(&r0, &r1, EAX, t0);
EAX = r0;
EDX = r1;
CC_DST = r0;
CC_SRC = r1;
}
-void helper_imulq_EAX_T0(void)
+void helper_imulq_EAX_T0(target_ulong t0)
{
uint64_t r0, r1;
- imul64(&r0, &r1, EAX, T0);
+ muls64(&r0, &r1, EAX, t0);
EAX = r0;
EDX = r1;
CC_DST = r0;
CC_SRC = ((int64_t)r1 != ((int64_t)r0 >> 63));
}
-void helper_imulq_T0_T1(void)
+target_ulong helper_imulq_T0_T1(target_ulong t0, target_ulong t1)
{
uint64_t r0, r1;
- imul64(&r0, &r1, T0, T1);
- T0 = r0;
+ muls64(&r0, &r1, t0, t1);
CC_DST = r0;
CC_SRC = ((int64_t)r1 != ((int64_t)r0 >> 63));
+ return r0;
}
-void helper_divq_EAX_T0(void)
+void helper_divq_EAX(target_ulong t0)
{
uint64_t r0, r1;
- if (T0 == 0) {
+ if (t0 == 0) {
raise_exception(EXCP00_DIVZ);
}
r0 = EAX;
r1 = EDX;
- div64(&r0, &r1, T0);
+ if (div64(&r0, &r1, t0))
+ raise_exception(EXCP00_DIVZ);
EAX = r0;
EDX = r1;
}
-void helper_idivq_EAX_T0(void)
+void helper_idivq_EAX(target_ulong t0)
{
uint64_t r0, r1;
- if (T0 == 0) {
+ if (t0 == 0) {
raise_exception(EXCP00_DIVZ);
}
r0 = EAX;
r1 = EDX;
- idiv64(&r0, &r1, T0);
+ if (idiv64(&r0, &r1, t0))
+ raise_exception(EXCP00_DIVZ);
EAX = r0;
EDX = r1;
}
+#endif
+
+void helper_hlt(void)
+{
+ env->hflags &= ~HF_INHIBIT_IRQ_MASK; /* needed if sti is just before */
+ env->hflags |= HF_HALTED_MASK;
+ env->exception_index = EXCP_HLT;
+ cpu_loop_exit();
+}
+
+void helper_monitor(target_ulong ptr)
+{
+ if ((uint32_t)ECX != 0)
+ raise_exception(EXCP0D_GPF);
+ /* XXX: store address ? */
+}
+
+void helper_mwait(void)
+{
+ if ((uint32_t)ECX != 0)
+ raise_exception(EXCP0D_GPF);
+ /* XXX: not complete but not completely erroneous */
+ if (env->cpu_index != 0 || env->next_cpu != NULL) {
+ /* more than one CPU: do not sleep because another CPU may
+ wake this one */
+ } else {
+ helper_hlt();
+ }
+}
+
+void helper_debug(void)
+{
+ env->exception_index = EXCP_DEBUG;
+ cpu_loop_exit();
+}
+
+void helper_raise_interrupt(int intno, int next_eip_addend)
+{
+ raise_interrupt(intno, 1, 0, next_eip_addend);
+}
+
+void helper_raise_exception(int exception_index)
+{
+ raise_exception(exception_index);
+}
+
+void helper_cli(void)
+{
+ env->eflags &= ~IF_MASK;
+}
+
+void helper_sti(void)
+{
+ env->eflags |= IF_MASK;
+}
+
+#if 0
+/* vm86plus instructions */
+void helper_cli_vm(void)
+{
+ env->eflags &= ~VIF_MASK;
+}
+void helper_sti_vm(void)
+{
+ env->eflags |= VIF_MASK;
+ if (env->eflags & VIP_MASK) {
+ raise_exception(EXCP0D_GPF);
+ }
+}
#endif
-/* XXX: do it */
-int fpu_isnan(double a)
+void helper_set_inhibit_irq(void)
{
- return 0;
+ env->hflags |= HF_INHIBIT_IRQ_MASK;
+}
+
+void helper_reset_inhibit_irq(void)
+{
+ env->hflags &= ~HF_INHIBIT_IRQ_MASK;
+}
+
+void helper_boundw(target_ulong a0, int v)
+{
+ int low, high;
+ low = ldsw(a0);
+ high = ldsw(a0 + 2);
+ v = (int16_t)v;
+ if (v < low || v > high) {
+ raise_exception(EXCP05_BOUND);
+ }
+ FORCE_RET();
+}
+
+void helper_boundl(target_ulong a0, int v)
+{
+ int low, high;
+ low = ldl(a0);
+ high = ldl(a0 + 4);
+ if (v < low || v > high) {
+ raise_exception(EXCP05_BOUND);
+ }
+ FORCE_RET();
}
-float approx_rsqrt(float a)
+static float approx_rsqrt(float a)
{
return 1.0 / sqrt(a);
}
-float approx_rcp(float a)
+static float approx_rcp(float a)
{
return 1.0 / a;
}
-
-#if !defined(CONFIG_USER_ONLY)
+#if !defined(CONFIG_USER_ONLY)
#define MMUSUFFIX _mmu
-#define GETPC() (__builtin_return_address(0))
+#ifdef __s390__
+# define GETPC() ((void*)((unsigned long)__builtin_return_address(0) & 0x7fffffffUL))
+#else
+# define GETPC() (__builtin_return_address(0))
+#endif
#define SHIFT 0
#include "softmmu_template.h"
NULL, it means that the function was called in C code (i.e. not
from generated code or from helper.c) */
/* XXX: fix it to restore all registers */
-void tlb_fill(target_ulong addr, int is_write, int is_user, void *retaddr)
+void tlb_fill(target_ulong addr, int is_write, int mmu_idx, void *retaddr)
{
TranslationBlock *tb;
int ret;
saved_env = env;
env = cpu_single_env;
- ret = cpu_x86_handle_mmu_fault(env, addr, is_write, is_user, 1);
+ ret = cpu_x86_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
if (ret) {
if (retaddr) {
/* now we have a real cpu fault */
}
}
if (retaddr)
- raise_exception_err(EXCP0E_PAGE, env->error_code);
+ raise_exception_err(env->exception_index, env->error_code);
else
- raise_exception_err_norestore(EXCP0E_PAGE, env->error_code);
+ raise_exception_err_norestore(env->exception_index, env->error_code);
}
env = saved_env;
}
+
+
+/* Secure Virtual Machine helpers */
+
+void helper_stgi(void)
+{
+ env->hflags |= HF_GIF_MASK;
+}
+
+void helper_clgi(void)
+{
+ env->hflags &= ~HF_GIF_MASK;
+}
+
+#if defined(CONFIG_USER_ONLY)
+
+void helper_vmrun(void)
+{
+}
+void helper_vmmcall(void)
+{
+}
+void helper_vmload(void)
+{
+}
+void helper_vmsave(void)
+{
+}
+void helper_skinit(void)
+{
+}
+void helper_invlpga(void)
+{
+}
+void helper_vmexit(uint32_t exit_code, uint64_t exit_info_1)
+{
+}
+void helper_svm_check_intercept_param(uint32_t type, uint64_t param)
+{
+}
+
+void helper_svm_check_io(uint32_t port, uint32_t param,
+ uint32_t next_eip_addend)
+{
+}
+#else
+
+static inline uint32_t
+vmcb2cpu_attrib(uint16_t vmcb_attrib, uint32_t vmcb_base, uint32_t vmcb_limit)
+{
+ return ((vmcb_attrib & 0x00ff) << 8) /* Type, S, DPL, P */
+ | ((vmcb_attrib & 0x0f00) << 12) /* AVL, L, DB, G */
+ | ((vmcb_base >> 16) & 0xff) /* Base 23-16 */
+ | (vmcb_base & 0xff000000) /* Base 31-24 */
+ | (vmcb_limit & 0xf0000); /* Limit 19-16 */
+}
+
+static inline uint16_t cpu2vmcb_attrib(uint32_t cpu_attrib)
+{
+ return ((cpu_attrib >> 8) & 0xff) /* Type, S, DPL, P */
+ | ((cpu_attrib & 0xf00000) >> 12); /* AVL, L, DB, G */
+}
+
+void helper_vmrun(void)
+{
+ target_ulong addr;
+ uint32_t event_inj;
+ uint32_t int_ctl;
+
+ addr = EAX;
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile,"vmrun! " TARGET_FMT_lx "\n", addr);
+
+ env->vm_vmcb = addr;
+
+ /* save the current CPU state in the hsave page */
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.gdtr.base), env->gdt.base);
+ stl_phys(env->vm_hsave + offsetof(struct vmcb, save.gdtr.limit), env->gdt.limit);
+
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.idtr.base), env->idt.base);
+ stl_phys(env->vm_hsave + offsetof(struct vmcb, save.idtr.limit), env->idt.limit);
+
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr0), env->cr[0]);
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr2), env->cr[2]);
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr3), env->cr[3]);
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr4), env->cr[4]);
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr8), env->cr[8]);
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.dr6), env->dr[6]);
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.dr7), env->dr[7]);
+
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.efer), env->efer);
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rflags), compute_eflags());
+
+ SVM_SAVE_SEG(env->vm_hsave, segs[R_ES], es);
+ SVM_SAVE_SEG(env->vm_hsave, segs[R_CS], cs);
+ SVM_SAVE_SEG(env->vm_hsave, segs[R_SS], ss);
+ SVM_SAVE_SEG(env->vm_hsave, segs[R_DS], ds);
+
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rip), EIP);
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rsp), ESP);
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rax), EAX);
+
+ /* load the interception bitmaps so we do not need to access the
+ vmcb in svm mode */
+ /* We shift all the intercept bits so we can OR them with the TB
+ flags later on */
+ env->intercept = (ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept)) << INTERCEPT_INTR) | INTERCEPT_SVM_MASK;
+ env->intercept_cr_read = lduw_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_cr_read));
+ env->intercept_cr_write = lduw_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_cr_write));
+ env->intercept_dr_read = lduw_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_dr_read));
+ env->intercept_dr_write = lduw_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_dr_write));
+ env->intercept_exceptions = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.intercept_exceptions));
+
+ env->gdt.base = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.gdtr.base));
+ env->gdt.limit = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, save.gdtr.limit));
+
+ env->idt.base = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.idtr.base));
+ env->idt.limit = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, save.idtr.limit));
+
+ /* clear exit_info_2 so we behave like the real hardware */
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2), 0);
+
+ cpu_x86_update_cr0(env, ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr0)));
+ cpu_x86_update_cr4(env, ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr4)));
+ cpu_x86_update_cr3(env, ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr3)));
+ env->cr[2] = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr2));
+ int_ctl = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_ctl));
+ if (int_ctl & V_INTR_MASKING_MASK) {
+ env->cr[8] = int_ctl & V_TPR_MASK;
+ cpu_set_apic_tpr(env, env->cr[8]);
+ if (env->eflags & IF_MASK)
+ env->hflags |= HF_HIF_MASK;
+ }
+
+#ifdef TARGET_X86_64
+ env->efer = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.efer));
+ env->hflags &= ~HF_LMA_MASK;
+ if (env->efer & MSR_EFER_LMA)
+ env->hflags |= HF_LMA_MASK;
+#endif
+ env->eflags = 0;
+ load_eflags(ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rflags)),
+ ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
+ CC_OP = CC_OP_EFLAGS;
+ CC_DST = 0xffffffff;
+
+ SVM_LOAD_SEG(env->vm_vmcb, ES, es);
+ SVM_LOAD_SEG(env->vm_vmcb, CS, cs);
+ SVM_LOAD_SEG(env->vm_vmcb, SS, ss);
+ SVM_LOAD_SEG(env->vm_vmcb, DS, ds);
+
+ EIP = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rip));
+ env->eip = EIP;
+ ESP = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rsp));
+ EAX = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rax));
+ env->dr[7] = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.dr7));
+ env->dr[6] = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.dr6));
+ cpu_x86_set_cpl(env, ldub_phys(env->vm_vmcb + offsetof(struct vmcb, save.cpl)));
+
+ /* FIXME: guest state consistency checks */
+
+ switch(ldub_phys(env->vm_vmcb + offsetof(struct vmcb, control.tlb_ctl))) {
+ case TLB_CONTROL_DO_NOTHING:
+ break;
+ case TLB_CONTROL_FLUSH_ALL_ASID:
+ /* FIXME: this is not 100% correct but should work for now */
+ tlb_flush(env, 1);
+ break;
+ }
+
+ helper_stgi();
+
+ /* maybe we need to inject an event */
+ event_inj = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.event_inj));
+ if (event_inj & SVM_EVTINJ_VALID) {
+ uint8_t vector = event_inj & SVM_EVTINJ_VEC_MASK;
+ uint16_t valid_err = event_inj & SVM_EVTINJ_VALID_ERR;
+ uint32_t event_inj_err = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.event_inj_err));
+ stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.event_inj), event_inj & ~SVM_EVTINJ_VALID);
+
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile, "Injecting(%#hx): ", valid_err);
+ /* FIXME: need to implement valid_err */
+ switch (event_inj & SVM_EVTINJ_TYPE_MASK) {
+ case SVM_EVTINJ_TYPE_INTR:
+ env->exception_index = vector;
+ env->error_code = event_inj_err;
+ env->exception_is_int = 0;
+ env->exception_next_eip = -1;
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile, "INTR");
+ break;
+ case SVM_EVTINJ_TYPE_NMI:
+ env->exception_index = vector;
+ env->error_code = event_inj_err;
+ env->exception_is_int = 0;
+ env->exception_next_eip = EIP;
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile, "NMI");
+ break;
+ case SVM_EVTINJ_TYPE_EXEPT:
+ env->exception_index = vector;
+ env->error_code = event_inj_err;
+ env->exception_is_int = 0;
+ env->exception_next_eip = -1;
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile, "EXEPT");
+ break;
+ case SVM_EVTINJ_TYPE_SOFT:
+ env->exception_index = vector;
+ env->error_code = event_inj_err;
+ env->exception_is_int = 1;
+ env->exception_next_eip = EIP;
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile, "SOFT");
+ break;
+ }
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile, " %#x %#x\n", env->exception_index, env->error_code);
+ }
+ if ((int_ctl & V_IRQ_MASK) || (env->intercept & INTERCEPT_VINTR)) {
+ env->interrupt_request |= CPU_INTERRUPT_VIRQ;
+ }
+
+ cpu_loop_exit();
+}
+
+void helper_vmmcall(void)
+{
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile,"vmmcall!\n");
+}
+
+void helper_vmload(void)
+{
+ target_ulong addr;
+ addr = EAX;
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile,"vmload! " TARGET_FMT_lx "\nFS: %016" PRIx64 " | " TARGET_FMT_lx "\n",
+ addr, ldq_phys(addr + offsetof(struct vmcb, save.fs.base)),
+ env->segs[R_FS].base);
+
+ SVM_LOAD_SEG2(addr, segs[R_FS], fs);
+ SVM_LOAD_SEG2(addr, segs[R_GS], gs);
+ SVM_LOAD_SEG2(addr, tr, tr);
+ SVM_LOAD_SEG2(addr, ldt, ldtr);
+
+#ifdef TARGET_X86_64
+ env->kernelgsbase = ldq_phys(addr + offsetof(struct vmcb, save.kernel_gs_base));
+ env->lstar = ldq_phys(addr + offsetof(struct vmcb, save.lstar));
+ env->cstar = ldq_phys(addr + offsetof(struct vmcb, save.cstar));
+ env->fmask = ldq_phys(addr + offsetof(struct vmcb, save.sfmask));
+#endif
+ env->star = ldq_phys(addr + offsetof(struct vmcb, save.star));
+ env->sysenter_cs = ldq_phys(addr + offsetof(struct vmcb, save.sysenter_cs));
+ env->sysenter_esp = ldq_phys(addr + offsetof(struct vmcb, save.sysenter_esp));
+ env->sysenter_eip = ldq_phys(addr + offsetof(struct vmcb, save.sysenter_eip));
+}
+
+void helper_vmsave(void)
+{
+ target_ulong addr;
+ addr = EAX;
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile,"vmsave! " TARGET_FMT_lx "\nFS: %016" PRIx64 " | " TARGET_FMT_lx "\n",
+ addr, ldq_phys(addr + offsetof(struct vmcb, save.fs.base)),
+ env->segs[R_FS].base);
+
+ SVM_SAVE_SEG(addr, segs[R_FS], fs);
+ SVM_SAVE_SEG(addr, segs[R_GS], gs);
+ SVM_SAVE_SEG(addr, tr, tr);
+ SVM_SAVE_SEG(addr, ldt, ldtr);
+
+#ifdef TARGET_X86_64
+ stq_phys(addr + offsetof(struct vmcb, save.kernel_gs_base), env->kernelgsbase);
+ stq_phys(addr + offsetof(struct vmcb, save.lstar), env->lstar);
+ stq_phys(addr + offsetof(struct vmcb, save.cstar), env->cstar);
+ stq_phys(addr + offsetof(struct vmcb, save.sfmask), env->fmask);
+#endif
+ stq_phys(addr + offsetof(struct vmcb, save.star), env->star);
+ stq_phys(addr + offsetof(struct vmcb, save.sysenter_cs), env->sysenter_cs);
+ stq_phys(addr + offsetof(struct vmcb, save.sysenter_esp), env->sysenter_esp);
+ stq_phys(addr + offsetof(struct vmcb, save.sysenter_eip), env->sysenter_eip);
+}
+
+void helper_skinit(void)
+{
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile,"skinit!\n");
+}
+
+void helper_invlpga(void)
+{
+ tlb_flush(env, 0);
+}
+
+void helper_svm_check_intercept_param(uint32_t type, uint64_t param)
+{
+ switch(type) {
+ case SVM_EXIT_READ_CR0 ... SVM_EXIT_READ_CR0 + 8:
+ if (INTERCEPTEDw(_cr_read, (1 << (type - SVM_EXIT_READ_CR0)))) {
+ helper_vmexit(type, param);
+ }
+ break;
+ case SVM_EXIT_READ_DR0 ... SVM_EXIT_READ_DR0 + 8:
+ if (INTERCEPTEDw(_dr_read, (1 << (type - SVM_EXIT_READ_DR0)))) {
+ helper_vmexit(type, param);
+ }
+ break;
+ case SVM_EXIT_WRITE_CR0 ... SVM_EXIT_WRITE_CR0 + 8:
+ if (INTERCEPTEDw(_cr_write, (1 << (type - SVM_EXIT_WRITE_CR0)))) {
+ helper_vmexit(type, param);
+ }
+ break;
+ case SVM_EXIT_WRITE_DR0 ... SVM_EXIT_WRITE_DR0 + 8:
+ if (INTERCEPTEDw(_dr_write, (1 << (type - SVM_EXIT_WRITE_DR0)))) {
+ helper_vmexit(type, param);
+ }
+ break;
+ case SVM_EXIT_EXCP_BASE ... SVM_EXIT_EXCP_BASE + 16:
+ if (INTERCEPTEDl(_exceptions, (1 << (type - SVM_EXIT_EXCP_BASE)))) {
+ helper_vmexit(type, param);
+ }
+ break;
+ case SVM_EXIT_IOIO:
+ break;
+
+ case SVM_EXIT_MSR:
+ if (INTERCEPTED(1ULL << INTERCEPT_MSR_PROT)) {
+ /* FIXME: this should be read in at vmrun (faster this way?) */
+ uint64_t addr = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.msrpm_base_pa));
+ uint32_t t0, t1;
+ switch((uint32_t)ECX) {
+ case 0 ... 0x1fff:
+ t0 = (ECX * 2) % 8;
+ t1 = ECX / 8;
+ break;
+ case 0xc0000000 ... 0xc0001fff:
+ t0 = (8192 + ECX - 0xc0000000) * 2;
+ t1 = (t0 / 8);
+ t0 %= 8;
+ break;
+ case 0xc0010000 ... 0xc0011fff:
+ t0 = (16384 + ECX - 0xc0010000) * 2;
+ t1 = (t0 / 8);
+ t0 %= 8;
+ break;
+ default:
+ helper_vmexit(type, param);
+ t0 = 0;
+ t1 = 0;
+ break;
+ }
+ if (ldub_phys(addr + t1) & ((1 << param) << t0))
+ helper_vmexit(type, param);
+ }
+ break;
+ default:
+ if (INTERCEPTED((1ULL << ((type - SVM_EXIT_INTR) + INTERCEPT_INTR)))) {
+ helper_vmexit(type, param);
+ }
+ break;
+ }
+}
+
+void helper_svm_check_io(uint32_t port, uint32_t param,
+ uint32_t next_eip_addend)
+{
+ if (INTERCEPTED(1ULL << INTERCEPT_IOIO_PROT)) {
+ /* FIXME: this should be read in at vmrun (faster this way?) */
+ uint64_t addr = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.iopm_base_pa));
+ uint16_t mask = (1 << ((param >> 4) & 7)) - 1;
+ if(lduw_phys(addr + port / 8) & (mask << (port & 7))) {
+ /* next EIP */
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2),
+ env->eip + next_eip_addend);
+ helper_vmexit(SVM_EXIT_IOIO, param | (port << 16));
+ }
+ }
+}
+
+/* Note: currently only 32 bits of exit_code are used */
+void helper_vmexit(uint32_t exit_code, uint64_t exit_info_1)
+{
+ uint32_t int_ctl;
+
+ if (loglevel & CPU_LOG_TB_IN_ASM)
+ fprintf(logfile,"vmexit(%08x, %016" PRIx64 ", %016" PRIx64 ", " TARGET_FMT_lx ")!\n",
+ exit_code, exit_info_1,
+ ldq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2)),
+ EIP);
+
+ if(env->hflags & HF_INHIBIT_IRQ_MASK) {
+ stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_state), SVM_INTERRUPT_SHADOW_MASK);
+ env->hflags &= ~HF_INHIBIT_IRQ_MASK;
+ } else {
+ stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_state), 0);
+ }
+
+ /* Save the VM state in the vmcb */
+ SVM_SAVE_SEG(env->vm_vmcb, segs[R_ES], es);
+ SVM_SAVE_SEG(env->vm_vmcb, segs[R_CS], cs);
+ SVM_SAVE_SEG(env->vm_vmcb, segs[R_SS], ss);
+ SVM_SAVE_SEG(env->vm_vmcb, segs[R_DS], ds);
+
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.gdtr.base), env->gdt.base);
+ stl_phys(env->vm_vmcb + offsetof(struct vmcb, save.gdtr.limit), env->gdt.limit);
+
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.idtr.base), env->idt.base);
+ stl_phys(env->vm_vmcb + offsetof(struct vmcb, save.idtr.limit), env->idt.limit);
+
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.efer), env->efer);
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr0), env->cr[0]);
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr2), env->cr[2]);
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr3), env->cr[3]);
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.cr4), env->cr[4]);
+
+ if ((int_ctl = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_ctl))) & V_INTR_MASKING_MASK) {
+ int_ctl &= ~V_TPR_MASK;
+ int_ctl |= env->cr[8] & V_TPR_MASK;
+ stl_phys(env->vm_vmcb + offsetof(struct vmcb, control.int_ctl), int_ctl);
+ }
+
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rflags), compute_eflags());
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rip), env->eip);
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rsp), ESP);
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rax), EAX);
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.dr7), env->dr[7]);
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.dr6), env->dr[6]);
+ stb_phys(env->vm_vmcb + offsetof(struct vmcb, save.cpl), env->hflags & HF_CPL_MASK);
+
+ /* Reload the host state from vm_hsave */
+ env->hflags &= ~HF_HIF_MASK;
+ env->intercept = 0;
+ env->intercept_exceptions = 0;
+ env->interrupt_request &= ~CPU_INTERRUPT_VIRQ;
+
+ env->gdt.base = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.gdtr.base));
+ env->gdt.limit = ldl_phys(env->vm_hsave + offsetof(struct vmcb, save.gdtr.limit));
+
+ env->idt.base = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.idtr.base));
+ env->idt.limit = ldl_phys(env->vm_hsave + offsetof(struct vmcb, save.idtr.limit));
+
+ cpu_x86_update_cr0(env, ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr0)) | CR0_PE_MASK);
+ cpu_x86_update_cr4(env, ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr4)));
+ cpu_x86_update_cr3(env, ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr3)));
+ if (int_ctl & V_INTR_MASKING_MASK) {
+ env->cr[8] = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr8));
+ cpu_set_apic_tpr(env, env->cr[8]);
+ }
+ /* we need to set the efer after the crs so the hidden flags get set properly */
+#ifdef TARGET_X86_64
+ env->efer = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.efer));
+ env->hflags &= ~HF_LMA_MASK;
+ if (env->efer & MSR_EFER_LMA)
+ env->hflags |= HF_LMA_MASK;
+#endif
+
+ env->eflags = 0;
+ load_eflags(ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rflags)),
+ ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
+ CC_OP = CC_OP_EFLAGS;
+
+ SVM_LOAD_SEG(env->vm_hsave, ES, es);
+ SVM_LOAD_SEG(env->vm_hsave, CS, cs);
+ SVM_LOAD_SEG(env->vm_hsave, SS, ss);
+ SVM_LOAD_SEG(env->vm_hsave, DS, ds);
+
+ EIP = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rip));
+ ESP = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rsp));
+ EAX = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rax));
+
+ env->dr[6] = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.dr6));
+ env->dr[7] = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.dr7));
+
+ /* other setups */
+ cpu_x86_set_cpl(env, 0);
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_code), exit_code);
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_1), exit_info_1);
+
+ helper_clgi();
+ /* FIXME: Resets the current ASID register to zero (host ASID). */
+
+ /* Clears the V_IRQ and V_INTR_MASKING bits inside the processor. */
+
+ /* Clears the TSC_OFFSET inside the processor. */
+
+ /* If the host is in PAE mode, the processor reloads the host's PDPEs
+ from the page table indicated the host's CR3. If the PDPEs contain
+ illegal state, the processor causes a shutdown. */
+
+ /* Forces CR0.PE = 1, RFLAGS.VM = 0. */
+ env->cr[0] |= CR0_PE_MASK;
+ env->eflags &= ~VM_MASK;
+
+ /* Disables all breakpoints in the host DR7 register. */
+
+ /* Checks the reloaded host state for consistency. */
+
+ /* If the host's rIP reloaded by #VMEXIT is outside the limit of the
+ host's code segment or non-canonical (in the case of long mode), a
+ #GP fault is delivered inside the host.) */
+
+ /* remove any pending exception */
+ env->exception_index = -1;
+ env->error_code = 0;
+ env->old_exception = -1;
+
+ cpu_loop_exit();
+}
+
+#endif
+
+/* MMX/SSE */
+/* XXX: optimize by storing fptt and fptags in the static cpu state */
+void helper_enter_mmx(void)
+{
+ env->fpstt = 0;
+ *(uint32_t *)(env->fptags) = 0;
+ *(uint32_t *)(env->fptags + 4) = 0;
+}
+
+void helper_emms(void)
+{
+ /* set to empty state */
+ *(uint32_t *)(env->fptags) = 0x01010101;
+ *(uint32_t *)(env->fptags + 4) = 0x01010101;
+}
+
+/* XXX: suppress */
+void helper_movq(uint64_t *d, uint64_t *s)
+{
+ *d = *s;
+}
+
+#define SHIFT 0
+#include "ops_sse.h"
+
+#define SHIFT 1
+#include "ops_sse.h"
+
+#define SHIFT 0
+#include "helper_template.h"
+#undef SHIFT
+
+#define SHIFT 1
+#include "helper_template.h"
+#undef SHIFT
+
+#define SHIFT 2
+#include "helper_template.h"
+#undef SHIFT
+
+#ifdef TARGET_X86_64
+
+#define SHIFT 3
+#include "helper_template.h"
+#undef SHIFT
+
+#endif
+
+/* bit operations */
+target_ulong helper_bsf(target_ulong t0)
+{
+ int count;
+ target_ulong res;
+
+ res = t0;
+ count = 0;
+ while ((res & 1) == 0) {
+ count++;
+ res >>= 1;
+ }
+ return count;
+}
+
+target_ulong helper_bsr(target_ulong t0)
+{
+ int count;
+ target_ulong res, mask;
+
+ res = t0;
+ count = TARGET_LONG_BITS - 1;
+ mask = (target_ulong)1 << (TARGET_LONG_BITS - 1);
+ while ((res & mask) == 0) {
+ count--;
+ res <<= 1;
+ }
+ return count;
+}
+
+
+static int compute_all_eflags(void)
+{
+ return CC_SRC;
+}
+
+static int compute_c_eflags(void)
+{
+ return CC_SRC & CC_C;
+}
+
+CCTable cc_table[CC_OP_NB] = {
+ [CC_OP_DYNAMIC] = { /* should never happen */ },
+
+ [CC_OP_EFLAGS] = { compute_all_eflags, compute_c_eflags },
+
+ [CC_OP_MULB] = { compute_all_mulb, compute_c_mull },
+ [CC_OP_MULW] = { compute_all_mulw, compute_c_mull },
+ [CC_OP_MULL] = { compute_all_mull, compute_c_mull },
+
+ [CC_OP_ADDB] = { compute_all_addb, compute_c_addb },
+ [CC_OP_ADDW] = { compute_all_addw, compute_c_addw },
+ [CC_OP_ADDL] = { compute_all_addl, compute_c_addl },
+
+ [CC_OP_ADCB] = { compute_all_adcb, compute_c_adcb },
+ [CC_OP_ADCW] = { compute_all_adcw, compute_c_adcw },
+ [CC_OP_ADCL] = { compute_all_adcl, compute_c_adcl },
+
+ [CC_OP_SUBB] = { compute_all_subb, compute_c_subb },
+ [CC_OP_SUBW] = { compute_all_subw, compute_c_subw },
+ [CC_OP_SUBL] = { compute_all_subl, compute_c_subl },
+
+ [CC_OP_SBBB] = { compute_all_sbbb, compute_c_sbbb },
+ [CC_OP_SBBW] = { compute_all_sbbw, compute_c_sbbw },
+ [CC_OP_SBBL] = { compute_all_sbbl, compute_c_sbbl },
+
+ [CC_OP_LOGICB] = { compute_all_logicb, compute_c_logicb },
+ [CC_OP_LOGICW] = { compute_all_logicw, compute_c_logicw },
+ [CC_OP_LOGICL] = { compute_all_logicl, compute_c_logicl },
+
+ [CC_OP_INCB] = { compute_all_incb, compute_c_incl },
+ [CC_OP_INCW] = { compute_all_incw, compute_c_incl },
+ [CC_OP_INCL] = { compute_all_incl, compute_c_incl },
+
+ [CC_OP_DECB] = { compute_all_decb, compute_c_incl },
+ [CC_OP_DECW] = { compute_all_decw, compute_c_incl },
+ [CC_OP_DECL] = { compute_all_decl, compute_c_incl },
+
+ [CC_OP_SHLB] = { compute_all_shlb, compute_c_shlb },
+ [CC_OP_SHLW] = { compute_all_shlw, compute_c_shlw },
+ [CC_OP_SHLL] = { compute_all_shll, compute_c_shll },
+
+ [CC_OP_SARB] = { compute_all_sarb, compute_c_sarl },
+ [CC_OP_SARW] = { compute_all_sarw, compute_c_sarl },
+ [CC_OP_SARL] = { compute_all_sarl, compute_c_sarl },
+
+#ifdef TARGET_X86_64
+ [CC_OP_MULQ] = { compute_all_mulq, compute_c_mull },
+
+ [CC_OP_ADDQ] = { compute_all_addq, compute_c_addq },
+
+ [CC_OP_ADCQ] = { compute_all_adcq, compute_c_adcq },
+
+ [CC_OP_SUBQ] = { compute_all_subq, compute_c_subq },
+
+ [CC_OP_SBBQ] = { compute_all_sbbq, compute_c_sbbq },
+
+ [CC_OP_LOGICQ] = { compute_all_logicq, compute_c_logicq },
+
+ [CC_OP_INCQ] = { compute_all_incq, compute_c_incl },
+
+ [CC_OP_DECQ] = { compute_all_decq, compute_c_incl },
+
+ [CC_OP_SHLQ] = { compute_all_shlq, compute_c_shlq },
+
+ [CC_OP_SARQ] = { compute_all_sarq, compute_c_sarl },
+#endif
+};
+
projects / qemu.git / blobdiff