[qemu.git] / target-i386 / machine.c

#include "hw/hw.h"
#include "hw/boards.h"
#include "hw/pc.h"
#include "hw/isa.h"

#include "cpu.h"
#include "sysemu/kvm.h"

static const VMStateDescription vmstate_segment = {
    .name = "segment",
    .version_id = 1,
    .minimum_version_id = 1,
    .minimum_version_id_old = 1,
    .fields      = (VMStateField []) {
        VMSTATE_UINT32(selector, SegmentCache),
        VMSTATE_UINTTL(base, SegmentCache),
        VMSTATE_UINT32(limit, SegmentCache),
        VMSTATE_UINT32(flags, SegmentCache),
        VMSTATE_END_OF_LIST()
    }
};

#define VMSTATE_SEGMENT(_field, _state) {                            \
    .name       = (stringify(_field)),                               \
    .size       = sizeof(SegmentCache),                              \
    .vmsd       = &vmstate_segment,                                  \
    .flags      = VMS_STRUCT,                                        \
    .offset     = offsetof(_state, _field)                           \
            + type_check(SegmentCache,typeof_field(_state, _field))  \
}

#define VMSTATE_SEGMENT_ARRAY(_field, _state, _n)                    \
    VMSTATE_STRUCT_ARRAY(_field, _state, _n, 0, vmstate_segment, SegmentCache)

static const VMStateDescription vmstate_xmm_reg = {
    .name = "xmm_reg",
    .version_id = 1,
    .minimum_version_id = 1,
    .minimum_version_id_old = 1,
    .fields      = (VMStateField []) {
        VMSTATE_UINT64(XMM_Q(0), XMMReg),
        VMSTATE_UINT64(XMM_Q(1), XMMReg),
        VMSTATE_END_OF_LIST()
    }
};

#define VMSTATE_XMM_REGS(_field, _state, _n)                         \
    VMSTATE_STRUCT_ARRAY(_field, _state, _n, 0, vmstate_xmm_reg, XMMReg)

/* YMMH format is the same as XMM */
static const VMStateDescription vmstate_ymmh_reg = {
    .name = "ymmh_reg",
    .version_id = 1,
    .minimum_version_id = 1,
    .minimum_version_id_old = 1,
    .fields      = (VMStateField []) {
        VMSTATE_UINT64(XMM_Q(0), XMMReg),
        VMSTATE_UINT64(XMM_Q(1), XMMReg),
        VMSTATE_END_OF_LIST()
    }
};

#define VMSTATE_YMMH_REGS_VARS(_field, _state, _n, _v)                         \
    VMSTATE_STRUCT_ARRAY(_field, _state, _n, _v, vmstate_ymmh_reg, XMMReg)

static const VMStateDescription vmstate_mtrr_var = {
    .name = "mtrr_var",
    .version_id = 1,
    .minimum_version_id = 1,
    .minimum_version_id_old = 1,
    .fields      = (VMStateField []) {
        VMSTATE_UINT64(base, MTRRVar),
        VMSTATE_UINT64(mask, MTRRVar),
        VMSTATE_END_OF_LIST()
    }
};

#define VMSTATE_MTRR_VARS(_field, _state, _n, _v)                    \
    VMSTATE_STRUCT_ARRAY(_field, _state, _n, _v, vmstate_mtrr_var, MTRRVar)

static void put_fpreg_error(QEMUFile *f, void *opaque, size_t size)
{
    fprintf(stderr, "call put_fpreg() with invalid arguments\n");
    exit(0);
}

/* XXX: add that in a FPU generic layer */
union x86_longdouble {
    uint64_t mant;
    uint16_t exp;
};

#define MANTD1(fp)	(fp & ((1LL << 52) - 1))
#define EXPBIAS1 1023
#define EXPD1(fp)	((fp >> 52) & 0x7FF)
#define SIGND1(fp)	((fp >> 32) & 0x80000000)

static void fp64_to_fp80(union x86_longdouble *p, uint64_t temp)
{
    int e;
    /* mantissa */
    p->mant = (MANTD1(temp) << 11) | (1LL << 63);
    /* exponent + sign */
    e = EXPD1(temp) - EXPBIAS1 + 16383;
    e |= SIGND1(temp) >> 16;
    p->exp = e;
}

static int get_fpreg(QEMUFile *f, void *opaque, size_t size)
{
    FPReg *fp_reg = opaque;
    uint64_t mant;
    uint16_t exp;

    qemu_get_be64s(f, &mant);
    qemu_get_be16s(f, &exp);
    fp_reg->d = cpu_set_fp80(mant, exp);
    return 0;
}

static void put_fpreg(QEMUFile *f, void *opaque, size_t size)
{
    FPReg *fp_reg = opaque;
    uint64_t mant;
    uint16_t exp;
    /* we save the real CPU data (in case of MMX usage only 'mant'
       contains the MMX register */
    cpu_get_fp80(&mant, &exp, fp_reg->d);
    qemu_put_be64s(f, &mant);
    qemu_put_be16s(f, &exp);
}

static const VMStateInfo vmstate_fpreg = {
    .name = "fpreg",
    .get  = get_fpreg,
    .put  = put_fpreg,
};

static int get_fpreg_1_mmx(QEMUFile *f, void *opaque, size_t size)
{
    union x86_longdouble *p = opaque;
    uint64_t mant;

    qemu_get_be64s(f, &mant);
    p->mant = mant;
    p->exp = 0xffff;
    return 0;
}

static const VMStateInfo vmstate_fpreg_1_mmx = {
    .name = "fpreg_1_mmx",
    .get  = get_fpreg_1_mmx,
    .put  = put_fpreg_error,
};

static int get_fpreg_1_no_mmx(QEMUFile *f, void *opaque, size_t size)
{
    union x86_longdouble *p = opaque;
    uint64_t mant;

    qemu_get_be64s(f, &mant);
    fp64_to_fp80(p, mant);
    return 0;
}

static const VMStateInfo vmstate_fpreg_1_no_mmx = {
    .name = "fpreg_1_no_mmx",
    .get  = get_fpreg_1_no_mmx,
    .put  = put_fpreg_error,
};

static bool fpregs_is_0(void *opaque, int version_id)
{
    X86CPU *cpu = opaque;
    CPUX86State *env = &cpu->env;

    return (env->fpregs_format_vmstate == 0);
}

static bool fpregs_is_1_mmx(void *opaque, int version_id)
{
    X86CPU *cpu = opaque;
    CPUX86State *env = &cpu->env;
    int guess_mmx;

    guess_mmx = ((env->fptag_vmstate == 0xff) &&
                 (env->fpus_vmstate & 0x3800) == 0);
    return (guess_mmx && (env->fpregs_format_vmstate == 1));
}

static bool fpregs_is_1_no_mmx(void *opaque, int version_id)
{
    X86CPU *cpu = opaque;
    CPUX86State *env = &cpu->env;
    int guess_mmx;

    guess_mmx = ((env->fptag_vmstate == 0xff) &&
                 (env->fpus_vmstate & 0x3800) == 0);
    return (!guess_mmx && (env->fpregs_format_vmstate == 1));
}

#define VMSTATE_FP_REGS(_field, _state, _n)                               \
    VMSTATE_ARRAY_TEST(_field, _state, _n, fpregs_is_0, vmstate_fpreg, FPReg), \
    VMSTATE_ARRAY_TEST(_field, _state, _n, fpregs_is_1_mmx, vmstate_fpreg_1_mmx, FPReg), \
    VMSTATE_ARRAY_TEST(_field, _state, _n, fpregs_is_1_no_mmx, vmstate_fpreg_1_no_mmx, FPReg)

static bool version_is_5(void *opaque, int version_id)
{
    return version_id == 5;
}

#ifdef TARGET_X86_64
static bool less_than_7(void *opaque, int version_id)
{
    return version_id < 7;
}

static int get_uint64_as_uint32(QEMUFile *f, void *pv, size_t size)
{
    uint64_t *v = pv;
    *v = qemu_get_be32(f);
    return 0;
}

static void put_uint64_as_uint32(QEMUFile *f, void *pv, size_t size)
{
    uint64_t *v = pv;
    qemu_put_be32(f, *v);
}

static const VMStateInfo vmstate_hack_uint64_as_uint32 = {
    .name = "uint64_as_uint32",
    .get  = get_uint64_as_uint32,
    .put  = put_uint64_as_uint32,
};

#define VMSTATE_HACK_UINT32(_f, _s, _t)                                  \
    VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_hack_uint64_as_uint32, uint64_t)
#endif

static void cpu_pre_save(void *opaque)
{
    X86CPU *cpu = opaque;
    CPUX86State *env = &cpu->env;
    int i;

    /* FPU */
    env->fpus_vmstate = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
    env->fptag_vmstate = 0;
    for(i = 0; i < 8; i++) {
        env->fptag_vmstate |= ((!env->fptags[i]) << i);
    }

    env->fpregs_format_vmstate = 0;
}

static int cpu_post_load(void *opaque, int version_id)
{
    X86CPU *cpu = opaque;
    CPUX86State *env = &cpu->env;
    int i;

    /* XXX: restore FPU round state */
    env->fpstt = (env->fpus_vmstate >> 11) & 7;
    env->fpus = env->fpus_vmstate & ~0x3800;
    env->fptag_vmstate ^= 0xff;
    for(i = 0; i < 8; i++) {
        env->fptags[i] = (env->fptag_vmstate >> i) & 1;
    }

    cpu_breakpoint_remove_all(env, BP_CPU);
    cpu_watchpoint_remove_all(env, BP_CPU);
    for (i = 0; i < DR7_MAX_BP; i++) {
        hw_breakpoint_insert(env, i);
    }
    tlb_flush(env, 1);

    return 0;
}

static bool async_pf_msr_needed(void *opaque)
{
    X86CPU *cpu = opaque;

    return cpu->env.async_pf_en_msr != 0;
}

static bool pv_eoi_msr_needed(void *opaque)
{
    X86CPU *cpu = opaque;

    return cpu->env.pv_eoi_en_msr != 0;
}

static const VMStateDescription vmstate_async_pf_msr = {
    .name = "cpu/async_pf_msr",
    .version_id = 1,
    .minimum_version_id = 1,
    .minimum_version_id_old = 1,
    .fields      = (VMStateField []) {
        VMSTATE_UINT64(env.async_pf_en_msr, X86CPU),
        VMSTATE_END_OF_LIST()
    }
};

static const VMStateDescription vmstate_pv_eoi_msr = {
    .name = "cpu/async_pv_eoi_msr",
    .version_id = 1,
    .minimum_version_id = 1,
    .minimum_version_id_old = 1,
    .fields      = (VMStateField []) {
        VMSTATE_UINT64(env.pv_eoi_en_msr, X86CPU),
        VMSTATE_END_OF_LIST()
    }
};

static bool fpop_ip_dp_needed(void *opaque)
{
    X86CPU *cpu = opaque;
    CPUX86State *env = &cpu->env;

    return env->fpop != 0 || env->fpip != 0 || env->fpdp != 0;
}

static const VMStateDescription vmstate_fpop_ip_dp = {
    .name = "cpu/fpop_ip_dp",
    .version_id = 1,
    .minimum_version_id = 1,
    .minimum_version_id_old = 1,
    .fields      = (VMStateField []) {
        VMSTATE_UINT16(env.fpop, X86CPU),
        VMSTATE_UINT64(env.fpip, X86CPU),
        VMSTATE_UINT64(env.fpdp, X86CPU),
        VMSTATE_END_OF_LIST()
    }
};

static bool tsc_adjust_needed(void *opaque)
{
    X86CPU *cpu = opaque;
    CPUX86State *env = &cpu->env;

    return env->tsc_adjust != 0;
}

static const VMStateDescription vmstate_msr_tsc_adjust = {
    .name = "cpu/msr_tsc_adjust",
    .version_id = 1,
    .minimum_version_id = 1,
    .minimum_version_id_old = 1,
    .fields      = (VMStateField[]) {
        VMSTATE_UINT64(env.tsc_adjust, X86CPU),
        VMSTATE_END_OF_LIST()
    }
};

static bool tscdeadline_needed(void *opaque)
{
    X86CPU *cpu = opaque;
    CPUX86State *env = &cpu->env;

    return env->tsc_deadline != 0;
}

static const VMStateDescription vmstate_msr_tscdeadline = {
    .name = "cpu/msr_tscdeadline",
    .version_id = 1,
    .minimum_version_id = 1,
    .minimum_version_id_old = 1,
    .fields      = (VMStateField []) {
        VMSTATE_UINT64(env.tsc_deadline, X86CPU),
        VMSTATE_END_OF_LIST()
    }
};

static bool misc_enable_needed(void *opaque)
{
    X86CPU *cpu = opaque;
    CPUX86State *env = &cpu->env;

    return env->msr_ia32_misc_enable != MSR_IA32_MISC_ENABLE_DEFAULT;
}

static const VMStateDescription vmstate_msr_ia32_misc_enable = {
    .name = "cpu/msr_ia32_misc_enable",
    .version_id = 1,
    .minimum_version_id = 1,
    .minimum_version_id_old = 1,
    .fields      = (VMStateField []) {
        VMSTATE_UINT64(env.msr_ia32_misc_enable, X86CPU),
        VMSTATE_END_OF_LIST()
    }
};

const VMStateDescription vmstate_x86_cpu = {
    .name = "cpu",
    .version_id = 12,
    .minimum_version_id = 3,
    .minimum_version_id_old = 3,
    .pre_save = cpu_pre_save,
    .post_load = cpu_post_load,
    .fields      = (VMStateField []) {
        VMSTATE_UINTTL_ARRAY(env.regs, X86CPU, CPU_NB_REGS),
        VMSTATE_UINTTL(env.eip, X86CPU),
        VMSTATE_UINTTL(env.eflags, X86CPU),
        VMSTATE_UINT32(env.hflags, X86CPU),
        /* FPU */
        VMSTATE_UINT16(env.fpuc, X86CPU),
        VMSTATE_UINT16(env.fpus_vmstate, X86CPU),
        VMSTATE_UINT16(env.fptag_vmstate, X86CPU),
        VMSTATE_UINT16(env.fpregs_format_vmstate, X86CPU),
        VMSTATE_FP_REGS(env.fpregs, X86CPU, 8),

        VMSTATE_SEGMENT_ARRAY(env.segs, X86CPU, 6),
        VMSTATE_SEGMENT(env.ldt, X86CPU),
        VMSTATE_SEGMENT(env.tr, X86CPU),
        VMSTATE_SEGMENT(env.gdt, X86CPU),
        VMSTATE_SEGMENT(env.idt, X86CPU),

        VMSTATE_UINT32(env.sysenter_cs, X86CPU),
#ifdef TARGET_X86_64
        /* Hack: In v7 size changed from 32 to 64 bits on x86_64 */
        VMSTATE_HACK_UINT32(env.sysenter_esp, X86CPU, less_than_7),
        VMSTATE_HACK_UINT32(env.sysenter_eip, X86CPU, less_than_7),
        VMSTATE_UINTTL_V(env.sysenter_esp, X86CPU, 7),
        VMSTATE_UINTTL_V(env.sysenter_eip, X86CPU, 7),
#else
        VMSTATE_UINTTL(env.sysenter_esp, X86CPU),
        VMSTATE_UINTTL(env.sysenter_eip, X86CPU),
#endif

        VMSTATE_UINTTL(env.cr[0], X86CPU),
        VMSTATE_UINTTL(env.cr[2], X86CPU),
        VMSTATE_UINTTL(env.cr[3], X86CPU),
        VMSTATE_UINTTL(env.cr[4], X86CPU),
        VMSTATE_UINTTL_ARRAY(env.dr, X86CPU, 8),
        /* MMU */
        VMSTATE_INT32(env.a20_mask, X86CPU),
        /* XMM */
        VMSTATE_UINT32(env.mxcsr, X86CPU),
        VMSTATE_XMM_REGS(env.xmm_regs, X86CPU, CPU_NB_REGS),

#ifdef TARGET_X86_64
        VMSTATE_UINT64(env.efer, X86CPU),
        VMSTATE_UINT64(env.star, X86CPU),
        VMSTATE_UINT64(env.lstar, X86CPU),
        VMSTATE_UINT64(env.cstar, X86CPU),
        VMSTATE_UINT64(env.fmask, X86CPU),
        VMSTATE_UINT64(env.kernelgsbase, X86CPU),
#endif
        VMSTATE_UINT32_V(env.smbase, X86CPU, 4),

        VMSTATE_UINT64_V(env.pat, X86CPU, 5),
        VMSTATE_UINT32_V(env.hflags2, X86CPU, 5),

        VMSTATE_UINT32_TEST(parent_obj.halted, X86CPU, version_is_5),
        VMSTATE_UINT64_V(env.vm_hsave, X86CPU, 5),
        VMSTATE_UINT64_V(env.vm_vmcb, X86CPU, 5),
        VMSTATE_UINT64_V(env.tsc_offset, X86CPU, 5),
        VMSTATE_UINT64_V(env.intercept, X86CPU, 5),
        VMSTATE_UINT16_V(env.intercept_cr_read, X86CPU, 5),
        VMSTATE_UINT16_V(env.intercept_cr_write, X86CPU, 5),
        VMSTATE_UINT16_V(env.intercept_dr_read, X86CPU, 5),
        VMSTATE_UINT16_V(env.intercept_dr_write, X86CPU, 5),
        VMSTATE_UINT32_V(env.intercept_exceptions, X86CPU, 5),
        VMSTATE_UINT8_V(env.v_tpr, X86CPU, 5),
        /* MTRRs */
        VMSTATE_UINT64_ARRAY_V(env.mtrr_fixed, X86CPU, 11, 8),
        VMSTATE_UINT64_V(env.mtrr_deftype, X86CPU, 8),
        VMSTATE_MTRR_VARS(env.mtrr_var, X86CPU, 8, 8),
        /* KVM-related states */
        VMSTATE_INT32_V(env.interrupt_injected, X86CPU, 9),
        VMSTATE_UINT32_V(env.mp_state, X86CPU, 9),
        VMSTATE_UINT64_V(env.tsc, X86CPU, 9),
        VMSTATE_INT32_V(env.exception_injected, X86CPU, 11),
        VMSTATE_UINT8_V(env.soft_interrupt, X86CPU, 11),
        VMSTATE_UINT8_V(env.nmi_injected, X86CPU, 11),
        VMSTATE_UINT8_V(env.nmi_pending, X86CPU, 11),
        VMSTATE_UINT8_V(env.has_error_code, X86CPU, 11),
        VMSTATE_UINT32_V(env.sipi_vector, X86CPU, 11),
        /* MCE */
        VMSTATE_UINT64_V(env.mcg_cap, X86CPU, 10),
        VMSTATE_UINT64_V(env.mcg_status, X86CPU, 10),
        VMSTATE_UINT64_V(env.mcg_ctl, X86CPU, 10),
        VMSTATE_UINT64_ARRAY_V(env.mce_banks, X86CPU, MCE_BANKS_DEF * 4, 10),
        /* rdtscp */
        VMSTATE_UINT64_V(env.tsc_aux, X86CPU, 11),
        /* KVM pvclock msr */
        VMSTATE_UINT64_V(env.system_time_msr, X86CPU, 11),
        VMSTATE_UINT64_V(env.wall_clock_msr, X86CPU, 11),
        /* XSAVE related fields */
        VMSTATE_UINT64_V(env.xcr0, X86CPU, 12),
        VMSTATE_UINT64_V(env.xstate_bv, X86CPU, 12),
        VMSTATE_YMMH_REGS_VARS(env.ymmh_regs, X86CPU, CPU_NB_REGS, 12),
        VMSTATE_END_OF_LIST()
        /* The above list is not sorted /wrt version numbers, watch out! */
    },
    .subsections = (VMStateSubsection []) {
        {
            .vmsd = &vmstate_async_pf_msr,
            .needed = async_pf_msr_needed,
        } , {
            .vmsd = &vmstate_pv_eoi_msr,
            .needed = pv_eoi_msr_needed,
        } , {
            .vmsd = &vmstate_fpop_ip_dp,
            .needed = fpop_ip_dp_needed,
        }, {
            .vmsd = &vmstate_msr_tsc_adjust,
            .needed = tsc_adjust_needed,
        }, {
            .vmsd = &vmstate_msr_tscdeadline,
            .needed = tscdeadline_needed,
        }, {
            .vmsd = &vmstate_msr_ia32_misc_enable,
            .needed = misc_enable_needed,
        } , {
            /* empty */
        }
    }
};
Commit	Line	Data
8dd3dca3 AJ	1	#include "hw/hw.h"
	2	#include "hw/boards.h"
	3	#include "hw/pc.h"
	4	#include "hw/isa.h"
	5
2b41f10e	6	#include "cpu.h"
9c17d615	7	#include "sysemu/kvm.h"
8dd3dca3	8
66e6d55b JQ	9	static const VMStateDescription vmstate_segment = {
	10	.name = "segment",
	11	.version_id = 1,
	12	.minimum_version_id = 1,
	13	.minimum_version_id_old = 1,
	14	.fields = (VMStateField []) {
	15	VMSTATE_UINT32(selector, SegmentCache),
	16	VMSTATE_UINTTL(base, SegmentCache),
	17	VMSTATE_UINT32(limit, SegmentCache),
	18	VMSTATE_UINT32(flags, SegmentCache),
	19	VMSTATE_END_OF_LIST()
	20	}
	21	};
	22
0cb892aa JQ	23	#define VMSTATE_SEGMENT(_field, _state) { \
	24	.name = (stringify(_field)), \
	25	.size = sizeof(SegmentCache), \
	26	.vmsd = &vmstate_segment, \
	27	.flags = VMS_STRUCT, \
	28	.offset = offsetof(_state, _field) \
	29	+ type_check(SegmentCache,typeof_field(_state, _field)) \
8dd3dca3 AJ	30	}
8dd3dca3 AJ	31
0cb892aa JQ	32	#define VMSTATE_SEGMENT_ARRAY(_field, _state, _n) \
0cb892aa JQ	33	VMSTATE_STRUCT_ARRAY(_field, _state, _n, 0, vmstate_segment, SegmentCache)
8dd3dca3	34
fc3b0aa2 JQ	35	static const VMStateDescription vmstate_xmm_reg = {
	36	.name = "xmm_reg",
	37	.version_id = 1,
	38	.minimum_version_id = 1,
	39	.minimum_version_id_old = 1,
	40	.fields = (VMStateField []) {
	41	VMSTATE_UINT64(XMM_Q(0), XMMReg),
	42	VMSTATE_UINT64(XMM_Q(1), XMMReg),
	43	VMSTATE_END_OF_LIST()
	44	}
	45	};
	46
0cb892aa JQ	47	#define VMSTATE_XMM_REGS(_field, _state, _n) \
0cb892aa JQ	48	VMSTATE_STRUCT_ARRAY(_field, _state, _n, 0, vmstate_xmm_reg, XMMReg)
fc3b0aa2	49
f1665b21 SY	50	/* YMMH format is the same as XMM */
	51	static const VMStateDescription vmstate_ymmh_reg = {
	52	.name = "ymmh_reg",
	53	.version_id = 1,
	54	.minimum_version_id = 1,
	55	.minimum_version_id_old = 1,
	56	.fields = (VMStateField []) {
	57	VMSTATE_UINT64(XMM_Q(0), XMMReg),
	58	VMSTATE_UINT64(XMM_Q(1), XMMReg),
	59	VMSTATE_END_OF_LIST()
	60	}
	61	};
	62
	63	#define VMSTATE_YMMH_REGS_VARS(_field, _state, _n, _v) \
	64	VMSTATE_STRUCT_ARRAY(_field, _state, _n, _v, vmstate_ymmh_reg, XMMReg)
	65
216c07c3 JQ	66	static const VMStateDescription vmstate_mtrr_var = {
	67	.name = "mtrr_var",
	68	.version_id = 1,
	69	.minimum_version_id = 1,
	70	.minimum_version_id_old = 1,
	71	.fields = (VMStateField []) {
	72	VMSTATE_UINT64(base, MTRRVar),
	73	VMSTATE_UINT64(mask, MTRRVar),
	74	VMSTATE_END_OF_LIST()
	75	}
	76	};
	77
0cb892aa JQ	78	#define VMSTATE_MTRR_VARS(_field, _state, _n, _v) \
0cb892aa JQ	79	VMSTATE_STRUCT_ARRAY(_field, _state, _n, _v, vmstate_mtrr_var, MTRRVar)
216c07c3	80
0cb892aa	81	static void put_fpreg_error(QEMUFile f, void opaque, size_t size)
216c07c3	82	{
0cb892aa JQ	83	fprintf(stderr, "call put_fpreg() with invalid arguments\n");
0cb892aa JQ	84	exit(0);
216c07c3 JQ	85	}
216c07c3 JQ	86
3c8ce630 JQ	87	/* XXX: add that in a FPU generic layer */
	88	union x86_longdouble {
	89	uint64_t mant;
	90	uint16_t exp;
	91	};
	92
	93	#define MANTD1(fp) (fp & ((1LL << 52) - 1))
	94	#define EXPBIAS1 1023
	95	#define EXPD1(fp) ((fp >> 52) & 0x7FF)
	96	#define SIGND1(fp) ((fp >> 32) & 0x80000000)
	97
	98	static void fp64_to_fp80(union x86_longdouble *p, uint64_t temp)
	99	{
	100	int e;
	101	/* mantissa */
	102	p->mant = (MANTD1(temp) << 11) \| (1LL << 63);
	103	/* exponent + sign */
	104	e = EXPD1(temp) - EXPBIAS1 + 16383;
	105	e \|= SIGND1(temp) >> 16;
	106	p->exp = e;
	107	}
	108
	109	static int get_fpreg(QEMUFile f, void opaque, size_t size)
	110	{
	111	FPReg *fp_reg = opaque;
	112	uint64_t mant;
	113	uint16_t exp;
	114
	115	qemu_get_be64s(f, &mant);
	116	qemu_get_be16s(f, &exp);
	117	fp_reg->d = cpu_set_fp80(mant, exp);
	118	return 0;
	119	}
	120
	121	static void put_fpreg(QEMUFile f, void opaque, size_t size)
	122	{
	123	FPReg *fp_reg = opaque;
	124	uint64_t mant;
	125	uint16_t exp;
	126	/* we save the real CPU data (in case of MMX usage only 'mant'
	127	contains the MMX register */
	128	cpu_get_fp80(&mant, &exp, fp_reg->d);
	129	qemu_put_be64s(f, &mant);
	130	qemu_put_be16s(f, &exp);
	131	}
	132
976b2037	133	static const VMStateInfo vmstate_fpreg = {
0cb892aa JQ	134	.name = "fpreg",
	135	.get = get_fpreg,
	136	.put = put_fpreg,
	137	};
	138
3c8ce630 JQ	139	static int get_fpreg_1_mmx(QEMUFile f, void opaque, size_t size)
	140	{
	141	union x86_longdouble *p = opaque;
	142	uint64_t mant;
	143
	144	qemu_get_be64s(f, &mant);
	145	p->mant = mant;
	146	p->exp = 0xffff;
	147	return 0;
	148	}
	149
976b2037	150	static const VMStateInfo vmstate_fpreg_1_mmx = {
0cb892aa JQ	151	.name = "fpreg_1_mmx",
	152	.get = get_fpreg_1_mmx,
	153	.put = put_fpreg_error,
	154	};
	155
3c8ce630 JQ	156	static int get_fpreg_1_no_mmx(QEMUFile f, void opaque, size_t size)
	157	{
	158	union x86_longdouble *p = opaque;
	159	uint64_t mant;
	160
	161	qemu_get_be64s(f, &mant);
	162	fp64_to_fp80(p, mant);
	163	return 0;
	164	}
	165
976b2037	166	static const VMStateInfo vmstate_fpreg_1_no_mmx = {
0cb892aa JQ	167	.name = "fpreg_1_no_mmx",
	168	.get = get_fpreg_1_no_mmx,
	169	.put = put_fpreg_error,
	170	};
	171
	172	static bool fpregs_is_0(void *opaque, int version_id)
	173	{
f56e3a14 AF	174	X86CPU *cpu = opaque;
f56e3a14 AF	175	CPUX86State *env = &cpu->env;
0cb892aa JQ	176
	177	return (env->fpregs_format_vmstate == 0);
	178	}
	179
	180	static bool fpregs_is_1_mmx(void *opaque, int version_id)
	181	{
f56e3a14 AF	182	X86CPU *cpu = opaque;
f56e3a14 AF	183	CPUX86State *env = &cpu->env;
0cb892aa JQ	184	int guess_mmx;
	185
	186	guess_mmx = ((env->fptag_vmstate == 0xff) &&
	187	(env->fpus_vmstate & 0x3800) == 0);
	188	return (guess_mmx && (env->fpregs_format_vmstate == 1));
	189	}
	190
	191	static bool fpregs_is_1_no_mmx(void *opaque, int version_id)
	192	{
f56e3a14 AF	193	X86CPU *cpu = opaque;
f56e3a14 AF	194	CPUX86State *env = &cpu->env;
0cb892aa JQ	195	int guess_mmx;
	196
	197	guess_mmx = ((env->fptag_vmstate == 0xff) &&
	198	(env->fpus_vmstate & 0x3800) == 0);
	199	return (!guess_mmx && (env->fpregs_format_vmstate == 1));
	200	}
	201
	202	#define VMSTATE_FP_REGS(_field, _state, _n) \
	203	VMSTATE_ARRAY_TEST(_field, _state, _n, fpregs_is_0, vmstate_fpreg, FPReg), \
	204	VMSTATE_ARRAY_TEST(_field, _state, _n, fpregs_is_1_mmx, vmstate_fpreg_1_mmx, FPReg), \
	205	VMSTATE_ARRAY_TEST(_field, _state, _n, fpregs_is_1_no_mmx, vmstate_fpreg_1_no_mmx, FPReg)
	206
0cb892aa JQ	207	static bool version_is_5(void *opaque, int version_id)
	208	{
	209	return version_id == 5;
	210	}
	211
	212	#ifdef TARGET_X86_64
	213	static bool less_than_7(void *opaque, int version_id)
	214	{
	215	return version_id < 7;
	216	}
	217
	218	static int get_uint64_as_uint32(QEMUFile f, void pv, size_t size)
	219	{
	220	uint64_t *v = pv;
	221	*v = qemu_get_be32(f);
	222	return 0;
	223	}
	224
	225	static void put_uint64_as_uint32(QEMUFile f, void pv, size_t size)
	226	{
	227	uint64_t *v = pv;
	228	qemu_put_be32(f, *v);
	229	}
	230
976b2037	231	static const VMStateInfo vmstate_hack_uint64_as_uint32 = {
0cb892aa JQ	232	.name = "uint64_as_uint32",
	233	.get = get_uint64_as_uint32,
	234	.put = put_uint64_as_uint32,
	235	};
	236
	237	#define VMSTATE_HACK_UINT32(_f, _s, _t) \
d4829d49	238	VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_hack_uint64_as_uint32, uint64_t)
0cb892aa JQ	239	#endif
0cb892aa JQ	240
c4c38c8c	241	static void cpu_pre_save(void *opaque)
8dd3dca3	242	{
f56e3a14 AF	243	X86CPU *cpu = opaque;
f56e3a14 AF	244	CPUX86State *env = &cpu->env;
0e607a80	245	int i;
8dd3dca3	246
8dd3dca3	247	/* FPU */
67b8f419	248	env->fpus_vmstate = (env->fpus & ~0x3800) \| (env->fpstt & 0x7) << 11;
cdc0c58f	249	env->fptag_vmstate = 0;
8dd3dca3	250	for(i = 0; i < 8; i++) {
cdc0c58f	251	env->fptag_vmstate \|= ((!env->fptags[i]) << i);
8dd3dca3 AJ	252	}
8dd3dca3 AJ	253
60a902f1	254	env->fpregs_format_vmstate = 0;
c4c38c8c JQ	255	}
c4c38c8c JQ	256
468f6581 JQ	257	static int cpu_post_load(void *opaque, int version_id)
468f6581 JQ	258	{
f56e3a14 AF	259	X86CPU *cpu = opaque;
f56e3a14 AF	260	CPUX86State *env = &cpu->env;
468f6581 JQ	261	int i;
	262
	263	/* XXX: restore FPU round state */
	264	env->fpstt = (env->fpus_vmstate >> 11) & 7;
	265	env->fpus = env->fpus_vmstate & ~0x3800;
	266	env->fptag_vmstate ^= 0xff;
	267	for(i = 0; i < 8; i++) {
	268	env->fptags[i] = (env->fptag_vmstate >> i) & 1;
	269	}
	270
	271	cpu_breakpoint_remove_all(env, BP_CPU);
	272	cpu_watchpoint_remove_all(env, BP_CPU);
428065ce	273	for (i = 0; i < DR7_MAX_BP; i++) {
468f6581	274	hw_breakpoint_insert(env, i);
428065ce	275	}
1e7fbc6d	276	tlb_flush(env, 1);
428065ce	277
1e7fbc6d	278	return 0;
468f6581 JQ	279	}
468f6581 JQ	280
f6584ee2 GN	281	static bool async_pf_msr_needed(void *opaque)
f6584ee2 GN	282	{
f56e3a14	283	X86CPU *cpu = opaque;
f6584ee2	284
f56e3a14	285	return cpu->env.async_pf_en_msr != 0;
f6584ee2 GN	286	}
f6584ee2 GN	287
bc9a839d MT	288	static bool pv_eoi_msr_needed(void *opaque)
bc9a839d MT	289	{
f56e3a14	290	X86CPU *cpu = opaque;
bc9a839d	291
f56e3a14	292	return cpu->env.pv_eoi_en_msr != 0;
bc9a839d MT	293	}
bc9a839d MT	294
f6584ee2 GN	295	static const VMStateDescription vmstate_async_pf_msr = {
	296	.name = "cpu/async_pf_msr",
	297	.version_id = 1,
	298	.minimum_version_id = 1,
	299	.minimum_version_id_old = 1,
	300	.fields = (VMStateField []) {
f56e3a14	301	VMSTATE_UINT64(env.async_pf_en_msr, X86CPU),
f6584ee2 GN	302	VMSTATE_END_OF_LIST()
	303	}
	304	};
	305
bc9a839d MT	306	static const VMStateDescription vmstate_pv_eoi_msr = {
	307	.name = "cpu/async_pv_eoi_msr",
	308	.version_id = 1,
	309	.minimum_version_id = 1,
	310	.minimum_version_id_old = 1,
	311	.fields = (VMStateField []) {
f56e3a14	312	VMSTATE_UINT64(env.pv_eoi_en_msr, X86CPU),
bc9a839d MT	313	VMSTATE_END_OF_LIST()
	314	}
	315	};
	316
42cc8fa6 JK	317	static bool fpop_ip_dp_needed(void *opaque)
42cc8fa6 JK	318	{
f56e3a14 AF	319	X86CPU *cpu = opaque;
f56e3a14 AF	320	CPUX86State *env = &cpu->env;
42cc8fa6 JK	321
	322	return env->fpop != 0 \|\| env->fpip != 0 \|\| env->fpdp != 0;
	323	}
	324
	325	static const VMStateDescription vmstate_fpop_ip_dp = {
	326	.name = "cpu/fpop_ip_dp",
	327	.version_id = 1,
	328	.minimum_version_id = 1,
	329	.minimum_version_id_old = 1,
	330	.fields = (VMStateField []) {
f56e3a14 AF	331	VMSTATE_UINT16(env.fpop, X86CPU),
	332	VMSTATE_UINT64(env.fpip, X86CPU),
	333	VMSTATE_UINT64(env.fpdp, X86CPU),
42cc8fa6 JK	334	VMSTATE_END_OF_LIST()
	335	}
	336	};
	337
f28558d3 WA	338	static bool tsc_adjust_needed(void *opaque)
f28558d3 WA	339	{
f56e3a14 AF	340	X86CPU *cpu = opaque;
f56e3a14 AF	341	CPUX86State *env = &cpu->env;
f28558d3 WA	342
	343	return env->tsc_adjust != 0;
	344	}
	345
	346	static const VMStateDescription vmstate_msr_tsc_adjust = {
	347	.name = "cpu/msr_tsc_adjust",
	348	.version_id = 1,
	349	.minimum_version_id = 1,
	350	.minimum_version_id_old = 1,
	351	.fields = (VMStateField[]) {
f56e3a14	352	VMSTATE_UINT64(env.tsc_adjust, X86CPU),
f28558d3 WA	353	VMSTATE_END_OF_LIST()
	354	}
	355	};
	356
aa82ba54 LJ	357	static bool tscdeadline_needed(void *opaque)
aa82ba54 LJ	358	{
f56e3a14 AF	359	X86CPU *cpu = opaque;
f56e3a14 AF	360	CPUX86State *env = &cpu->env;
aa82ba54 LJ	361
	362	return env->tsc_deadline != 0;
	363	}
	364
	365	static const VMStateDescription vmstate_msr_tscdeadline = {
	366	.name = "cpu/msr_tscdeadline",
	367	.version_id = 1,
	368	.minimum_version_id = 1,
	369	.minimum_version_id_old = 1,
	370	.fields = (VMStateField []) {
f56e3a14	371	VMSTATE_UINT64(env.tsc_deadline, X86CPU),
aa82ba54 LJ	372	VMSTATE_END_OF_LIST()
	373	}
	374	};
	375
21e87c46 AK	376	static bool misc_enable_needed(void *opaque)
21e87c46 AK	377	{
f56e3a14 AF	378	X86CPU *cpu = opaque;
f56e3a14 AF	379	CPUX86State *env = &cpu->env;
21e87c46 AK	380
	381	return env->msr_ia32_misc_enable != MSR_IA32_MISC_ENABLE_DEFAULT;
	382	}
	383
	384	static const VMStateDescription vmstate_msr_ia32_misc_enable = {
	385	.name = "cpu/msr_ia32_misc_enable",
	386	.version_id = 1,
	387	.minimum_version_id = 1,
	388	.minimum_version_id_old = 1,
	389	.fields = (VMStateField []) {
f56e3a14	390	VMSTATE_UINT64(env.msr_ia32_misc_enable, X86CPU),
21e87c46 AK	391	VMSTATE_END_OF_LIST()
	392	}
	393	};
	394
f56e3a14	395	const VMStateDescription vmstate_x86_cpu = {
0cb892aa	396	.name = "cpu",
f56e3a14	397	.version_id = 12,
0cb892aa JQ	398	.minimum_version_id = 3,
	399	.minimum_version_id_old = 3,
	400	.pre_save = cpu_pre_save,
0cb892aa JQ	401	.post_load = cpu_post_load,
0cb892aa JQ	402	.fields = (VMStateField []) {
f56e3a14 AF	403	VMSTATE_UINTTL_ARRAY(env.regs, X86CPU, CPU_NB_REGS),
	404	VMSTATE_UINTTL(env.eip, X86CPU),
	405	VMSTATE_UINTTL(env.eflags, X86CPU),
	406	VMSTATE_UINT32(env.hflags, X86CPU),
0cb892aa	407	/* FPU */
f56e3a14 AF	408	VMSTATE_UINT16(env.fpuc, X86CPU),
	409	VMSTATE_UINT16(env.fpus_vmstate, X86CPU),
	410	VMSTATE_UINT16(env.fptag_vmstate, X86CPU),
	411	VMSTATE_UINT16(env.fpregs_format_vmstate, X86CPU),
	412	VMSTATE_FP_REGS(env.fpregs, X86CPU, 8),
	413
	414	VMSTATE_SEGMENT_ARRAY(env.segs, X86CPU, 6),
	415	VMSTATE_SEGMENT(env.ldt, X86CPU),
	416	VMSTATE_SEGMENT(env.tr, X86CPU),
	417	VMSTATE_SEGMENT(env.gdt, X86CPU),
	418	VMSTATE_SEGMENT(env.idt, X86CPU),
	419
	420	VMSTATE_UINT32(env.sysenter_cs, X86CPU),
0cb892aa JQ	421	#ifdef TARGET_X86_64
0cb892aa JQ	422	/* Hack: In v7 size changed from 32 to 64 bits on x86_64 */
f56e3a14 AF	423	VMSTATE_HACK_UINT32(env.sysenter_esp, X86CPU, less_than_7),
	424	VMSTATE_HACK_UINT32(env.sysenter_eip, X86CPU, less_than_7),
	425	VMSTATE_UINTTL_V(env.sysenter_esp, X86CPU, 7),
	426	VMSTATE_UINTTL_V(env.sysenter_eip, X86CPU, 7),
8dd3dca3	427	#else
f56e3a14 AF	428	VMSTATE_UINTTL(env.sysenter_esp, X86CPU),
f56e3a14 AF	429	VMSTATE_UINTTL(env.sysenter_eip, X86CPU),
3c8ce630	430	#endif
8dd3dca3	431
f56e3a14 AF	432	VMSTATE_UINTTL(env.cr[0], X86CPU),
	433	VMSTATE_UINTTL(env.cr[2], X86CPU),
	434	VMSTATE_UINTTL(env.cr[3], X86CPU),
	435	VMSTATE_UINTTL(env.cr[4], X86CPU),
	436	VMSTATE_UINTTL_ARRAY(env.dr, X86CPU, 8),
0cb892aa	437	/* MMU */
f56e3a14	438	VMSTATE_INT32(env.a20_mask, X86CPU),
0cb892aa	439	/* XMM */
f56e3a14 AF	440	VMSTATE_UINT32(env.mxcsr, X86CPU),
f56e3a14 AF	441	VMSTATE_XMM_REGS(env.xmm_regs, X86CPU, CPU_NB_REGS),
8dd3dca3 AJ	442
8dd3dca3 AJ	443	#ifdef TARGET_X86_64
f56e3a14 AF	444	VMSTATE_UINT64(env.efer, X86CPU),
	445	VMSTATE_UINT64(env.star, X86CPU),
	446	VMSTATE_UINT64(env.lstar, X86CPU),
	447	VMSTATE_UINT64(env.cstar, X86CPU),
	448	VMSTATE_UINT64(env.fmask, X86CPU),
	449	VMSTATE_UINT64(env.kernelgsbase, X86CPU),
8dd3dca3	450	#endif
f56e3a14 AF	451	VMSTATE_UINT32_V(env.smbase, X86CPU, 4),
	452
	453	VMSTATE_UINT64_V(env.pat, X86CPU, 5),
	454	VMSTATE_UINT32_V(env.hflags2, X86CPU, 5),
	455
259186a7	456	VMSTATE_UINT32_TEST(parent_obj.halted, X86CPU, version_is_5),
f56e3a14 AF	457	VMSTATE_UINT64_V(env.vm_hsave, X86CPU, 5),
	458	VMSTATE_UINT64_V(env.vm_vmcb, X86CPU, 5),
	459	VMSTATE_UINT64_V(env.tsc_offset, X86CPU, 5),
	460	VMSTATE_UINT64_V(env.intercept, X86CPU, 5),
	461	VMSTATE_UINT16_V(env.intercept_cr_read, X86CPU, 5),
	462	VMSTATE_UINT16_V(env.intercept_cr_write, X86CPU, 5),
	463	VMSTATE_UINT16_V(env.intercept_dr_read, X86CPU, 5),
	464	VMSTATE_UINT16_V(env.intercept_dr_write, X86CPU, 5),
	465	VMSTATE_UINT32_V(env.intercept_exceptions, X86CPU, 5),
	466	VMSTATE_UINT8_V(env.v_tpr, X86CPU, 5),
dd5e3b17	467	/* MTRRs */
f56e3a14 AF	468	VMSTATE_UINT64_ARRAY_V(env.mtrr_fixed, X86CPU, 11, 8),
	469	VMSTATE_UINT64_V(env.mtrr_deftype, X86CPU, 8),
	470	VMSTATE_MTRR_VARS(env.mtrr_var, X86CPU, 8, 8),
0cb892aa	471	/* KVM-related states */
f56e3a14 AF	472	VMSTATE_INT32_V(env.interrupt_injected, X86CPU, 9),
	473	VMSTATE_UINT32_V(env.mp_state, X86CPU, 9),
	474	VMSTATE_UINT64_V(env.tsc, X86CPU, 9),
	475	VMSTATE_INT32_V(env.exception_injected, X86CPU, 11),
	476	VMSTATE_UINT8_V(env.soft_interrupt, X86CPU, 11),
	477	VMSTATE_UINT8_V(env.nmi_injected, X86CPU, 11),
	478	VMSTATE_UINT8_V(env.nmi_pending, X86CPU, 11),
	479	VMSTATE_UINT8_V(env.has_error_code, X86CPU, 11),
	480	VMSTATE_UINT32_V(env.sipi_vector, X86CPU, 11),
0cb892aa	481	/* MCE */
f56e3a14 AF	482	VMSTATE_UINT64_V(env.mcg_cap, X86CPU, 10),
	483	VMSTATE_UINT64_V(env.mcg_status, X86CPU, 10),
	484	VMSTATE_UINT64_V(env.mcg_ctl, X86CPU, 10),
	485	VMSTATE_UINT64_ARRAY_V(env.mce_banks, X86CPU, MCE_BANKS_DEF * 4, 10),
0cb892aa	486	/* rdtscp */
f56e3a14	487	VMSTATE_UINT64_V(env.tsc_aux, X86CPU, 11),
1a03675d	488	/* KVM pvclock msr */
f56e3a14 AF	489	VMSTATE_UINT64_V(env.system_time_msr, X86CPU, 11),
f56e3a14 AF	490	VMSTATE_UINT64_V(env.wall_clock_msr, X86CPU, 11),
f1665b21	491	/* XSAVE related fields */
f56e3a14 AF	492	VMSTATE_UINT64_V(env.xcr0, X86CPU, 12),
	493	VMSTATE_UINT64_V(env.xstate_bv, X86CPU, 12),
	494	VMSTATE_YMMH_REGS_VARS(env.ymmh_regs, X86CPU, CPU_NB_REGS, 12),
0cb892aa	495	VMSTATE_END_OF_LIST()
a0fb002c	496	/* The above list is not sorted /wrt version numbers, watch out! */
f6584ee2 GN	497	},
	498	.subsections = (VMStateSubsection []) {
	499	{
	500	.vmsd = &vmstate_async_pf_msr,
	501	.needed = async_pf_msr_needed,
bc9a839d MT	502	} , {
	503	.vmsd = &vmstate_pv_eoi_msr,
	504	.needed = pv_eoi_msr_needed,
42cc8fa6 JK	505	} , {
	506	.vmsd = &vmstate_fpop_ip_dp,
	507	.needed = fpop_ip_dp_needed,
f28558d3 WA	508	}, {
	509	.vmsd = &vmstate_msr_tsc_adjust,
	510	.needed = tsc_adjust_needed,
aa82ba54 LJ	511	}, {
	512	.vmsd = &vmstate_msr_tscdeadline,
	513	.needed = tscdeadline_needed,
21e87c46 AK	514	}, {
	515	.vmsd = &vmstate_msr_ia32_misc_enable,
	516	.needed = misc_enable_needed,
f6584ee2 GN	517	} , {
	518	/* empty */
	519	}
79c4f6b0	520	}
0cb892aa	521	};