#include "cpu.h"
#include "disas/disas.h"
#include "tcg.h"
-#include "qemu/timer.h"
-#include "exec/memory.h"
-#include "exec/address-spaces.h"
#if defined(CONFIG_USER_ONLY)
#include "qemu.h"
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
#include <libutil.h>
#endif
#endif
+#else
+#include "exec/address-spaces.h"
#endif
#include "exec/cputlb.h"
#include "translate-all.h"
+#include "qemu/timer.h"
//#define DEBUG_TB_INVALIDATE
//#define DEBUG_FLUSH
# define L1_MAP_ADDR_SPACE_BITS TARGET_VIRT_ADDR_SPACE_BITS
#endif
+/* Size of the L2 (and L3, etc) page tables. */
+#define V_L2_BITS 10
+#define V_L2_SIZE (1 << V_L2_BITS)
+
/* The bits remaining after N lower levels of page tables. */
#define V_L1_BITS_REM \
- ((L1_MAP_ADDR_SPACE_BITS - TARGET_PAGE_BITS) % L2_BITS)
+ ((L1_MAP_ADDR_SPACE_BITS - TARGET_PAGE_BITS) % V_L2_BITS)
#if V_L1_BITS_REM < 4
-#define V_L1_BITS (V_L1_BITS_REM + L2_BITS)
+#define V_L1_BITS (V_L1_BITS_REM + V_L2_BITS)
#else
#define V_L1_BITS V_L1_BITS_REM
#endif
}
#endif
-static void page_init(void)
+void page_size_init(void)
{
/* NOTE: we can always suppose that qemu_host_page_size >=
TARGET_PAGE_SIZE */
#ifdef _WIN32
- {
- SYSTEM_INFO system_info;
+ SYSTEM_INFO system_info;
- GetSystemInfo(&system_info);
- qemu_real_host_page_size = system_info.dwPageSize;
- }
+ GetSystemInfo(&system_info);
+ qemu_real_host_page_size = system_info.dwPageSize;
#else
qemu_real_host_page_size = getpagesize();
#endif
qemu_host_page_size = TARGET_PAGE_SIZE;
}
qemu_host_page_mask = ~(qemu_host_page_size - 1);
+}
+static void page_init(void)
+{
+ page_size_init();
#if defined(CONFIG_BSD) && defined(CONFIG_USER_ONLY)
{
#ifdef HAVE_KINFO_GETVMMAP
lp = l1_map + ((index >> V_L1_SHIFT) & (V_L1_SIZE - 1));
/* Level 2..N-1. */
- for (i = V_L1_SHIFT / L2_BITS - 1; i > 0; i--) {
+ for (i = V_L1_SHIFT / V_L2_BITS - 1; i > 0; i--) {
void **p = *lp;
if (p == NULL) {
if (!alloc) {
return NULL;
}
- ALLOC(p, sizeof(void *) * L2_SIZE);
+ ALLOC(p, sizeof(void *) * V_L2_SIZE);
*lp = p;
}
- lp = p + ((index >> (i * L2_BITS)) & (L2_SIZE - 1));
+ lp = p + ((index >> (i * V_L2_BITS)) & (V_L2_SIZE - 1));
}
pd = *lp;
if (!alloc) {
return NULL;
}
- ALLOC(pd, sizeof(PageDesc) * L2_SIZE);
+ ALLOC(pd, sizeof(PageDesc) * V_L2_SIZE);
*lp = pd;
}
#undef ALLOC
- return pd + (index & (L2_SIZE - 1));
+ return pd + (index & (V_L2_SIZE - 1));
}
static inline PageDesc *page_find(tb_page_addr_t index)
# define MAX_CODE_GEN_BUFFER_SIZE (2ul * 1024 * 1024 * 1024)
#elif defined(__sparc__)
# define MAX_CODE_GEN_BUFFER_SIZE (2ul * 1024 * 1024 * 1024)
+#elif defined(__aarch64__)
+# define MAX_CODE_GEN_BUFFER_SIZE (128ul * 1024 * 1024)
#elif defined(__arm__)
# define MAX_CODE_GEN_BUFFER_SIZE (16u * 1024 * 1024)
#elif defined(__s390x__)
if (level == 0) {
PageDesc *pd = *lp;
- for (i = 0; i < L2_SIZE; ++i) {
+ for (i = 0; i < V_L2_SIZE; ++i) {
pd[i].first_tb = NULL;
invalidate_page_bitmap(pd + i);
}
} else {
void **pp = *lp;
- for (i = 0; i < L2_SIZE; ++i) {
+ for (i = 0; i < V_L2_SIZE; ++i) {
page_flush_tb_1(level - 1, pp + i);
}
}
int i;
for (i = 0; i < V_L1_SIZE; i++) {
- page_flush_tb_1(V_L1_SHIFT / L2_BITS - 1, l1_map + i);
+ page_flush_tb_1(V_L1_SHIFT / V_L2_BITS - 1, l1_map + i);
}
}
/* XXX: tb_flush is currently not thread safe */
void tb_flush(CPUArchState *env1)
{
- CPUArchState *env;
+ CPUState *cpu;
#if defined(DEBUG_FLUSH)
printf("qemu: flush code_size=%ld nb_tbs=%d avg_tb_size=%ld\n",
}
tcg_ctx.tb_ctx.nb_tbs = 0;
- for (env = first_cpu; env != NULL; env = env->next_cpu) {
- memset(env->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof(void *));
+ CPU_FOREACH(cpu) {
+ CPUArchState *env = cpu->env_ptr;
+
+ memset(env->tb_jmp_cache, 0, sizeof(env->tb_jmp_cache));
}
- memset(tcg_ctx.tb_ctx.tb_phys_hash, 0,
- CODE_GEN_PHYS_HASH_SIZE * sizeof(void *));
+ memset(tcg_ctx.tb_ctx.tb_phys_hash, 0, sizeof(tcg_ctx.tb_ctx.tb_phys_hash));
page_flush_tb();
tcg_ctx.code_gen_ptr = tcg_ctx.code_gen_buffer;
/* invalidate one TB */
void tb_phys_invalidate(TranslationBlock *tb, tb_page_addr_t page_addr)
{
- CPUArchState *env;
+ CPUState *cpu;
PageDesc *p;
unsigned int h, n1;
tb_page_addr_t phys_pc;
/* remove the TB from the hash list */
h = tb_jmp_cache_hash_func(tb->pc);
- for (env = first_cpu; env != NULL; env = env->next_cpu) {
+ CPU_FOREACH(cpu) {
+ CPUArchState *env = cpu->env_ptr;
+
if (env->tb_jmp_cache[h] == tb) {
env->tb_jmp_cache[h] = NULL;
}
int is_cpu_write_access)
{
TranslationBlock *tb, *tb_next, *saved_tb;
- CPUArchState *env = cpu_single_env;
- CPUState *cpu = NULL;
+ CPUState *cpu = current_cpu;
+#if defined(TARGET_HAS_PRECISE_SMC) || !defined(CONFIG_USER_ONLY)
+ CPUArchState *env = NULL;
+#endif
tb_page_addr_t tb_start, tb_end;
PageDesc *p;
int n;
/* build code bitmap */
build_page_bitmap(p);
}
- if (env != NULL) {
- cpu = ENV_GET_CPU(env);
+#if defined(TARGET_HAS_PRECISE_SMC) || !defined(CONFIG_USER_ONLY)
+ if (cpu != NULL) {
+ env = cpu->env_ptr;
}
+#endif
/* we remove all the TBs in the range [start, end[ */
/* XXX: see if in some cases it could be faster to invalidate all
#if !defined(CONFIG_SOFTMMU)
static void tb_invalidate_phys_page(tb_page_addr_t addr,
- uintptr_t pc, void *puc)
+ uintptr_t pc, void *puc,
+ bool locked)
{
TranslationBlock *tb;
PageDesc *p;
int n;
#ifdef TARGET_HAS_PRECISE_SMC
TranslationBlock *current_tb = NULL;
- CPUArchState *env = cpu_single_env;
- CPUState *cpu = NULL;
+ CPUState *cpu = current_cpu;
+ CPUArchState *env = NULL;
int current_tb_modified = 0;
target_ulong current_pc = 0;
target_ulong current_cs_base = 0;
if (tb && pc != 0) {
current_tb = tb_find_pc(pc);
}
- if (env != NULL) {
- cpu = ENV_GET_CPU(env);
+ if (cpu != NULL) {
+ env = cpu->env_ptr;
}
#endif
while (tb != NULL) {
itself */
cpu->current_tb = NULL;
tb_gen_code(env, current_pc, current_cs_base, current_flags, 1);
+ if (locked) {
+ mmap_unlock();
+ }
cpu_resume_from_signal(env, puc);
}
#endif
mmap_unlock();
}
-#if defined(CONFIG_QEMU_LDST_OPTIMIZATION) && defined(CONFIG_SOFTMMU)
-/* check whether the given addr is in TCG generated code buffer or not */
-bool is_tcg_gen_code(uintptr_t tc_ptr)
-{
- /* This can be called during code generation, code_gen_buffer_size
- is used instead of code_gen_ptr for upper boundary checking */
- return (tc_ptr >= (uintptr_t)tcg_ctx.code_gen_buffer &&
- tc_ptr < (uintptr_t)(tcg_ctx.code_gen_buffer +
- tcg_ctx.code_gen_buffer_size));
-}
-#endif
-
/* find the TB 'tb' such that tb[0].tc_ptr <= tc_ptr <
tb[1].tc_ptr. Return NULL if not found */
static TranslationBlock *tb_find_pc(uintptr_t tc_ptr)
}
#if defined(TARGET_HAS_ICE) && !defined(CONFIG_USER_ONLY)
-void tb_invalidate_phys_addr(hwaddr addr)
+void tb_invalidate_phys_addr(AddressSpace *as, hwaddr addr)
{
ram_addr_t ram_addr;
- MemoryRegionSection *section;
+ MemoryRegion *mr;
+ hwaddr l = 1;
- section = phys_page_find(address_space_memory.dispatch,
- addr >> TARGET_PAGE_BITS);
- if (!(memory_region_is_ram(section->mr)
- || (section->mr->rom_device && section->mr->readable))) {
+ mr = address_space_translate(as, addr, &addr, &l, false);
+ if (!(memory_region_is_ram(mr)
+ || memory_region_is_romd(mr))) {
return;
}
- ram_addr = (memory_region_get_ram_addr(section->mr) & TARGET_PAGE_MASK)
- + memory_region_section_addr(section, addr);
+ ram_addr = (memory_region_get_ram_addr(mr) & TARGET_PAGE_MASK)
+ + addr;
tb_invalidate_phys_page_range(ram_addr, ram_addr + 1, 0);
}
#endif /* TARGET_HAS_ICE && !defined(CONFIG_USER_ONLY) */
if (level == 0) {
PageDesc *pd = *lp;
- for (i = 0; i < L2_SIZE; ++i) {
+ for (i = 0; i < V_L2_SIZE; ++i) {
int prot = pd[i].flags;
pa = base | (i << TARGET_PAGE_BITS);
} else {
void **pp = *lp;
- for (i = 0; i < L2_SIZE; ++i) {
+ for (i = 0; i < V_L2_SIZE; ++i) {
pa = base | ((abi_ulong)i <<
- (TARGET_PAGE_BITS + L2_BITS * level));
+ (TARGET_PAGE_BITS + V_L2_BITS * level));
rc = walk_memory_regions_1(data, pa, level - 1, pp + i);
if (rc != 0) {
return rc;
for (i = 0; i < V_L1_SIZE; i++) {
int rc = walk_memory_regions_1(&data, (abi_ulong)i << V_L1_SHIFT,
- V_L1_SHIFT / L2_BITS - 1, l1_map + i);
+ V_L1_SHIFT / V_L2_BITS - 1, l1_map + i);
if (rc != 0) {
return rc;
/* dump memory mappings */
void page_dump(FILE *f)
{
- (void) fprintf(f, "%-8s %-8s %-8s %s\n",
- "start", "end", "size", "prot");
+ const int length = sizeof(abi_ulong) * 2;
+ (void) fprintf(f, "%-*s %-*s %-*s %s\n",
+ length, "start", length, "end", length, "size", "prot");
walk_memory_regions(f, dump_region);
}
if (!(p->flags & PAGE_WRITE) &&
(flags & PAGE_WRITE) &&
p->first_tb) {
- tb_invalidate_phys_page(addr, 0, NULL);
+ tb_invalidate_phys_page(addr, 0, NULL, false);
}
p->flags = flags;
}
/* and since the content will be modified, we must invalidate
the corresponding translated code. */
- tb_invalidate_phys_page(addr, pc, puc);
+ tb_invalidate_phys_page(addr, pc, puc, true);
#ifdef DEBUG_TB_CHECK
tb_invalidate_check(addr);
#endif
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