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qemu-patch-raspberry4/target/i386/machine.c
Pavel Dovgalyuk 89a44a1033 i386: Save EFER for 32-bit targets 
i386 (32 bit) emulation uses EFER in wrmsr and in MMU fault
processing.
But it does not included in VMState, because "efer" field is disabled with

This patch adds a section for 32-bit targets which saves EFER when
it's value is non-zero.

Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Message-Id: <155913371654.8429.1659082639780315242.stgit@pasha-Precision-3630-Tower>
Reviewed-by: Peter Xu <peterx@redhat.com>
[ehabkost: indentation fix]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2019-06-11 10:17:47 -03:00

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#include "qemu/osdep.h"
#include "qemu-common.h"
#include "cpu.h"
#include "exec/exec-all.h"
#include "hw/hw.h"
#include "hw/boards.h"
#include "hw/i386/pc.h"
#include "hw/isa/isa.h"
#include "migration/cpu.h"
#include "hyperv.h"
#include "sysemu/kvm.h"
#include "qemu/error-report.h"
static const VMStateDescription vmstate_segment = {
.name = "segment",
.version_id = 1,
.minimum_version_id = 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,
.fields = (VMStateField[]) {
VMSTATE_UINT64(ZMM_Q(0), ZMMReg),
VMSTATE_UINT64(ZMM_Q(1), ZMMReg),
VMSTATE_END_OF_LIST()
}
};
#define VMSTATE_XMM_REGS(_field, _state, _start) \
VMSTATE_STRUCT_SUB_ARRAY(_field, _state, _start, CPU_NB_REGS, 0, \
vmstate_xmm_reg, ZMMReg)
/* YMMH format is the same as XMM, but for bits 128-255 */
static const VMStateDescription vmstate_ymmh_reg = {
.name = "ymmh_reg",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT64(ZMM_Q(2), ZMMReg),
VMSTATE_UINT64(ZMM_Q(3), ZMMReg),
VMSTATE_END_OF_LIST()
}
};
#define VMSTATE_YMMH_REGS_VARS(_field, _state, _start, _v) \
VMSTATE_STRUCT_SUB_ARRAY(_field, _state, _start, CPU_NB_REGS, _v, \
vmstate_ymmh_reg, ZMMReg)
static const VMStateDescription vmstate_zmmh_reg = {
.name = "zmmh_reg",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT64(ZMM_Q(4), ZMMReg),
VMSTATE_UINT64(ZMM_Q(5), ZMMReg),
VMSTATE_UINT64(ZMM_Q(6), ZMMReg),
VMSTATE_UINT64(ZMM_Q(7), ZMMReg),
VMSTATE_END_OF_LIST()
}
};
#define VMSTATE_ZMMH_REGS_VARS(_field, _state, _start) \
VMSTATE_STRUCT_SUB_ARRAY(_field, _state, _start, CPU_NB_REGS, 0, \
vmstate_zmmh_reg, ZMMReg)
#ifdef TARGET_X86_64
static const VMStateDescription vmstate_hi16_zmm_reg = {
.name = "hi16_zmm_reg",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT64(ZMM_Q(0), ZMMReg),
VMSTATE_UINT64(ZMM_Q(1), ZMMReg),
VMSTATE_UINT64(ZMM_Q(2), ZMMReg),
VMSTATE_UINT64(ZMM_Q(3), ZMMReg),
VMSTATE_UINT64(ZMM_Q(4), ZMMReg),
VMSTATE_UINT64(ZMM_Q(5), ZMMReg),
VMSTATE_UINT64(ZMM_Q(6), ZMMReg),
VMSTATE_UINT64(ZMM_Q(7), ZMMReg),
VMSTATE_END_OF_LIST()
}
};
#define VMSTATE_Hi16_ZMM_REGS_VARS(_field, _state, _start) \
VMSTATE_STRUCT_SUB_ARRAY(_field, _state, _start, CPU_NB_REGS, 0, \
vmstate_hi16_zmm_reg, ZMMReg)
#endif
static const VMStateDescription vmstate_bnd_regs = {
.name = "bnd_regs",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT64(lb, BNDReg),
VMSTATE_UINT64(ub, BNDReg),
VMSTATE_END_OF_LIST()
}
};
#define VMSTATE_BND_REGS(_field, _state, _n) \
VMSTATE_STRUCT_ARRAY(_field, _state, _n, 0, vmstate_bnd_regs, BNDReg)
static const VMStateDescription vmstate_mtrr_var = {
.name = "mtrr_var",
.version_id = 1,
.minimum_version_id = 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)
typedef struct x86_FPReg_tmp {
FPReg *parent;
uint64_t tmp_mant;
uint16_t tmp_exp;
} x86_FPReg_tmp;
static void cpu_get_fp80(uint64_t *pmant, uint16_t *pexp, floatx80 f)
{
CPU_LDoubleU temp;
temp.d = f;
*pmant = temp.l.lower;
*pexp = temp.l.upper;
}
static floatx80 cpu_set_fp80(uint64_t mant, uint16_t upper)
{
CPU_LDoubleU temp;
temp.l.upper = upper;
temp.l.lower = mant;
return temp.d;
}
static int fpreg_pre_save(void *opaque)
{
x86_FPReg_tmp *tmp = opaque;
/* we save the real CPU data (in case of MMX usage only 'mant'
contains the MMX register */
cpu_get_fp80(&tmp->tmp_mant, &tmp->tmp_exp, tmp->parent->d);
return 0;
}
static int fpreg_post_load(void *opaque, int version)
{
x86_FPReg_tmp *tmp = opaque;
tmp->parent->d = cpu_set_fp80(tmp->tmp_mant, tmp->tmp_exp);
return 0;
}
static const VMStateDescription vmstate_fpreg_tmp = {
.name = "fpreg_tmp",
.post_load = fpreg_post_load,
.pre_save = fpreg_pre_save,
.fields = (VMStateField[]) {
VMSTATE_UINT64(tmp_mant, x86_FPReg_tmp),
VMSTATE_UINT16(tmp_exp, x86_FPReg_tmp),
VMSTATE_END_OF_LIST()
}
};
static const VMStateDescription vmstate_fpreg = {
.name = "fpreg",
.fields = (VMStateField[]) {
VMSTATE_WITH_TMP(FPReg, x86_FPReg_tmp, vmstate_fpreg_tmp),
VMSTATE_END_OF_LIST()
}
};
static int 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;
/*
* Real mode guest segments register DPL should be zero.
* Older KVM version were setting it wrongly.
* Fixing it will allow live migration to host with unrestricted guest
* support (otherwise the migration will fail with invalid guest state
* error).
*/
if (!(env->cr[0] & CR0_PE_MASK) &&
(env->segs[R_CS].flags >> DESC_DPL_SHIFT & 3) != 0) {
env->segs[R_CS].flags &= ~(env->segs[R_CS].flags & DESC_DPL_MASK);
env->segs[R_DS].flags &= ~(env->segs[R_DS].flags & DESC_DPL_MASK);
env->segs[R_ES].flags &= ~(env->segs[R_ES].flags & DESC_DPL_MASK);
env->segs[R_FS].flags &= ~(env->segs[R_FS].flags & DESC_DPL_MASK);
env->segs[R_GS].flags &= ~(env->segs[R_GS].flags & DESC_DPL_MASK);
env->segs[R_SS].flags &= ~(env->segs[R_SS].flags & DESC_DPL_MASK);
}
return 0;
}
static int cpu_post_load(void *opaque, int version_id)
{
X86CPU *cpu = opaque;
CPUState *cs = CPU(cpu);
CPUX86State *env = &cpu->env;
int i;
if (env->tsc_khz && env->user_tsc_khz &&
env->tsc_khz != env->user_tsc_khz) {
error_report("Mismatch between user-specified TSC frequency and "
"migrated TSC frequency");
return -EINVAL;
}
if (env->fpregs_format_vmstate) {
error_report("Unsupported old non-softfloat CPU state");
return -EINVAL;
}
/*
* Real mode guest segments register DPL should be zero.
* Older KVM version were setting it wrongly.
* Fixing it will allow live migration from such host that don't have
* restricted guest support to a host with unrestricted guest support
* (otherwise the migration will fail with invalid guest state
* error).
*/
if (!(env->cr[0] & CR0_PE_MASK) &&
(env->segs[R_CS].flags >> DESC_DPL_SHIFT & 3) != 0) {
env->segs[R_CS].flags &= ~(env->segs[R_CS].flags & DESC_DPL_MASK);
env->segs[R_DS].flags &= ~(env->segs[R_DS].flags & DESC_DPL_MASK);
env->segs[R_ES].flags &= ~(env->segs[R_ES].flags & DESC_DPL_MASK);
env->segs[R_FS].flags &= ~(env->segs[R_FS].flags & DESC_DPL_MASK);
env->segs[R_GS].flags &= ~(env->segs[R_GS].flags & DESC_DPL_MASK);
env->segs[R_SS].flags &= ~(env->segs[R_SS].flags & DESC_DPL_MASK);
}
/* Older versions of QEMU incorrectly used CS.DPL as the CPL when
* running under KVM. This is wrong for conforming code segments.
* Luckily, in our implementation the CPL field of hflags is redundant
* and we can get the right value from the SS descriptor privilege level.
*/
env->hflags &= ~HF_CPL_MASK;
env->hflags |= (env->segs[R_SS].flags >> DESC_DPL_SHIFT) & HF_CPL_MASK;
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;
}
if (tcg_enabled()) {
target_ulong dr7;
update_fp_status(env);
update_mxcsr_status(env);
cpu_breakpoint_remove_all(cs, BP_CPU);
cpu_watchpoint_remove_all(cs, BP_CPU);
/* Indicate all breakpoints disabled, as they are, then
let the helper re-enable them. */
dr7 = env->dr[7];
env->dr[7] = dr7 & ~(DR7_GLOBAL_BP_MASK | DR7_LOCAL_BP_MASK);
cpu_x86_update_dr7(env, dr7);
}
tlb_flush(cs);
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 bool steal_time_msr_needed(void *opaque)
{
X86CPU *cpu = opaque;
return cpu->env.steal_time_msr != 0;
}
static const VMStateDescription vmstate_steal_time_msr = {
.name = "cpu/steal_time_msr",
.version_id = 1,
.minimum_version_id = 1,
.needed = steal_time_msr_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT64(env.steal_time_msr, X86CPU),
VMSTATE_END_OF_LIST()
}
};
static const VMStateDescription vmstate_async_pf_msr = {
.name = "cpu/async_pf_msr",
.version_id = 1,
.minimum_version_id = 1,
.needed = async_pf_msr_needed,
.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,
.needed = pv_eoi_msr_needed,
.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,
.needed = fpop_ip_dp_needed,
.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,
.needed = tsc_adjust_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT64(env.tsc_adjust, X86CPU),
VMSTATE_END_OF_LIST()
}
};
static bool msr_smi_count_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
return cpu->migrate_smi_count && env->msr_smi_count != 0;
}
static const VMStateDescription vmstate_msr_smi_count = {
.name = "cpu/msr_smi_count",
.version_id = 1,
.minimum_version_id = 1,
.needed = msr_smi_count_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT64(env.msr_smi_count, 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,
.needed = tscdeadline_needed,
.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 bool feature_control_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
return env->msr_ia32_feature_control != 0;
}
static const VMStateDescription vmstate_msr_ia32_misc_enable = {
.name = "cpu/msr_ia32_misc_enable",
.version_id = 1,
.minimum_version_id = 1,
.needed = misc_enable_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT64(env.msr_ia32_misc_enable, X86CPU),
VMSTATE_END_OF_LIST()
}
};
static const VMStateDescription vmstate_msr_ia32_feature_control = {
.name = "cpu/msr_ia32_feature_control",
.version_id = 1,
.minimum_version_id = 1,
.needed = feature_control_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT64(env.msr_ia32_feature_control, X86CPU),
VMSTATE_END_OF_LIST()
}
};
static bool pmu_enable_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
int i;
if (env->msr_fixed_ctr_ctrl || env->msr_global_ctrl ||
env->msr_global_status || env->msr_global_ovf_ctrl) {
return true;
}
for (i = 0; i < MAX_FIXED_COUNTERS; i++) {
if (env->msr_fixed_counters[i]) {
return true;
}
}
for (i = 0; i < MAX_GP_COUNTERS; i++) {
if (env->msr_gp_counters[i] || env->msr_gp_evtsel[i]) {
return true;
}
}
return false;
}
static const VMStateDescription vmstate_msr_architectural_pmu = {
.name = "cpu/msr_architectural_pmu",
.version_id = 1,
.minimum_version_id = 1,
.needed = pmu_enable_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT64(env.msr_fixed_ctr_ctrl, X86CPU),
VMSTATE_UINT64(env.msr_global_ctrl, X86CPU),
VMSTATE_UINT64(env.msr_global_status, X86CPU),
VMSTATE_UINT64(env.msr_global_ovf_ctrl, X86CPU),
VMSTATE_UINT64_ARRAY(env.msr_fixed_counters, X86CPU, MAX_FIXED_COUNTERS),
VMSTATE_UINT64_ARRAY(env.msr_gp_counters, X86CPU, MAX_GP_COUNTERS),
VMSTATE_UINT64_ARRAY(env.msr_gp_evtsel, X86CPU, MAX_GP_COUNTERS),
VMSTATE_END_OF_LIST()
}
};
static bool mpx_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
unsigned int i;
for (i = 0; i < 4; i++) {
if (env->bnd_regs[i].lb || env->bnd_regs[i].ub) {
return true;
}
}
if (env->bndcs_regs.cfgu || env->bndcs_regs.sts) {
return true;
}
return !!env->msr_bndcfgs;
}
static const VMStateDescription vmstate_mpx = {
.name = "cpu/mpx",
.version_id = 1,
.minimum_version_id = 1,
.needed = mpx_needed,
.fields = (VMStateField[]) {
VMSTATE_BND_REGS(env.bnd_regs, X86CPU, 4),
VMSTATE_UINT64(env.bndcs_regs.cfgu, X86CPU),
VMSTATE_UINT64(env.bndcs_regs.sts, X86CPU),
VMSTATE_UINT64(env.msr_bndcfgs, X86CPU),
VMSTATE_END_OF_LIST()
}
};
static bool hyperv_hypercall_enable_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
return env->msr_hv_hypercall != 0 || env->msr_hv_guest_os_id != 0;
}
static const VMStateDescription vmstate_msr_hypercall_hypercall = {
.name = "cpu/msr_hyperv_hypercall",
.version_id = 1,
.minimum_version_id = 1,
.needed = hyperv_hypercall_enable_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT64(env.msr_hv_guest_os_id, X86CPU),
VMSTATE_UINT64(env.msr_hv_hypercall, X86CPU),
VMSTATE_END_OF_LIST()
}
};
static bool hyperv_vapic_enable_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
return env->msr_hv_vapic != 0;
}
static const VMStateDescription vmstate_msr_hyperv_vapic = {
.name = "cpu/msr_hyperv_vapic",
.version_id = 1,
.minimum_version_id = 1,
.needed = hyperv_vapic_enable_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT64(env.msr_hv_vapic, X86CPU),
VMSTATE_END_OF_LIST()
}
};
static bool hyperv_time_enable_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
return env->msr_hv_tsc != 0;
}
static const VMStateDescription vmstate_msr_hyperv_time = {
.name = "cpu/msr_hyperv_time",
.version_id = 1,
.minimum_version_id = 1,
.needed = hyperv_time_enable_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT64(env.msr_hv_tsc, X86CPU),
VMSTATE_END_OF_LIST()
}
};
static bool hyperv_crash_enable_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
int i;
for (i = 0; i < HV_CRASH_PARAMS; i++) {
if (env->msr_hv_crash_params[i]) {
return true;
}
}
return false;
}
static const VMStateDescription vmstate_msr_hyperv_crash = {
.name = "cpu/msr_hyperv_crash",
.version_id = 1,
.minimum_version_id = 1,
.needed = hyperv_crash_enable_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT64_ARRAY(env.msr_hv_crash_params, X86CPU, HV_CRASH_PARAMS),
VMSTATE_END_OF_LIST()
}
};
static bool hyperv_runtime_enable_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
if (!cpu->hyperv_runtime) {
return false;
}
return env->msr_hv_runtime != 0;
}
static const VMStateDescription vmstate_msr_hyperv_runtime = {
.name = "cpu/msr_hyperv_runtime",
.version_id = 1,
.minimum_version_id = 1,
.needed = hyperv_runtime_enable_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT64(env.msr_hv_runtime, X86CPU),
VMSTATE_END_OF_LIST()
}
};
static bool hyperv_synic_enable_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
int i;
if (env->msr_hv_synic_control != 0 ||
env->msr_hv_synic_evt_page != 0 ||
env->msr_hv_synic_msg_page != 0) {
return true;
}
for (i = 0; i < ARRAY_SIZE(env->msr_hv_synic_sint); i++) {
if (env->msr_hv_synic_sint[i] != 0) {
return true;
}
}
return false;
}
static int hyperv_synic_post_load(void *opaque, int version_id)
{
X86CPU *cpu = opaque;
hyperv_x86_synic_update(cpu);
return 0;
}
static const VMStateDescription vmstate_msr_hyperv_synic = {
.name = "cpu/msr_hyperv_synic",
.version_id = 1,
.minimum_version_id = 1,
.needed = hyperv_synic_enable_needed,
.post_load = hyperv_synic_post_load,
.fields = (VMStateField[]) {
VMSTATE_UINT64(env.msr_hv_synic_control, X86CPU),
VMSTATE_UINT64(env.msr_hv_synic_evt_page, X86CPU),
VMSTATE_UINT64(env.msr_hv_synic_msg_page, X86CPU),
VMSTATE_UINT64_ARRAY(env.msr_hv_synic_sint, X86CPU, HV_SINT_COUNT),
VMSTATE_END_OF_LIST()
}
};
static bool hyperv_stimer_enable_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
int i;
for (i = 0; i < ARRAY_SIZE(env->msr_hv_stimer_config); i++) {
if (env->msr_hv_stimer_config[i] || env->msr_hv_stimer_count[i]) {
return true;
}
}
return false;
}
static const VMStateDescription vmstate_msr_hyperv_stimer = {
.name = "cpu/msr_hyperv_stimer",
.version_id = 1,
.minimum_version_id = 1,
.needed = hyperv_stimer_enable_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT64_ARRAY(env.msr_hv_stimer_config, X86CPU,
HV_STIMER_COUNT),
VMSTATE_UINT64_ARRAY(env.msr_hv_stimer_count, X86CPU, HV_STIMER_COUNT),
VMSTATE_END_OF_LIST()
}
};
static bool hyperv_reenlightenment_enable_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
return env->msr_hv_reenlightenment_control != 0 ||
env->msr_hv_tsc_emulation_control != 0 ||
env->msr_hv_tsc_emulation_status != 0;
}
static const VMStateDescription vmstate_msr_hyperv_reenlightenment = {
.name = "cpu/msr_hyperv_reenlightenment",
.version_id = 1,
.minimum_version_id = 1,
.needed = hyperv_reenlightenment_enable_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT64(env.msr_hv_reenlightenment_control, X86CPU),
VMSTATE_UINT64(env.msr_hv_tsc_emulation_control, X86CPU),
VMSTATE_UINT64(env.msr_hv_tsc_emulation_status, X86CPU),
VMSTATE_END_OF_LIST()
}
};
static bool avx512_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
unsigned int i;
for (i = 0; i < NB_OPMASK_REGS; i++) {
if (env->opmask_regs[i]) {
return true;
}
}
for (i = 0; i < CPU_NB_REGS; i++) {
#define ENV_XMM(reg, field) (env->xmm_regs[reg].ZMM_Q(field))
if (ENV_XMM(i, 4) || ENV_XMM(i, 6) ||
ENV_XMM(i, 5) || ENV_XMM(i, 7)) {
return true;
}
#ifdef TARGET_X86_64
if (ENV_XMM(i+16, 0) || ENV_XMM(i+16, 1) ||
ENV_XMM(i+16, 2) || ENV_XMM(i+16, 3) ||
ENV_XMM(i+16, 4) || ENV_XMM(i+16, 5) ||
ENV_XMM(i+16, 6) || ENV_XMM(i+16, 7)) {
return true;
}
#endif
}
return false;
}
static const VMStateDescription vmstate_avx512 = {
.name = "cpu/avx512",
.version_id = 1,
.minimum_version_id = 1,
.needed = avx512_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT64_ARRAY(env.opmask_regs, X86CPU, NB_OPMASK_REGS),
VMSTATE_ZMMH_REGS_VARS(env.xmm_regs, X86CPU, 0),
#ifdef TARGET_X86_64
VMSTATE_Hi16_ZMM_REGS_VARS(env.xmm_regs, X86CPU, 16),
#endif
VMSTATE_END_OF_LIST()
}
};
static bool xss_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
return env->xss != 0;
}
static const VMStateDescription vmstate_xss = {
.name = "cpu/xss",
.version_id = 1,
.minimum_version_id = 1,
.needed = xss_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT64(env.xss, X86CPU),
VMSTATE_END_OF_LIST()
}
};
#ifdef TARGET_X86_64
static bool pkru_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
return env->pkru != 0;
}
static const VMStateDescription vmstate_pkru = {
.name = "cpu/pkru",
.version_id = 1,
.minimum_version_id = 1,
.needed = pkru_needed,
.fields = (VMStateField[]){
VMSTATE_UINT32(env.pkru, X86CPU),
VMSTATE_END_OF_LIST()
}
};
#endif
static bool tsc_khz_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
MachineClass *mc = MACHINE_GET_CLASS(qdev_get_machine());
PCMachineClass *pcmc = PC_MACHINE_CLASS(mc);
return env->tsc_khz && pcmc->save_tsc_khz;
}
static const VMStateDescription vmstate_tsc_khz = {
.name = "cpu/tsc_khz",
.version_id = 1,
.minimum_version_id = 1,
.needed = tsc_khz_needed,
.fields = (VMStateField[]) {
VMSTATE_INT64(env.tsc_khz, X86CPU),
VMSTATE_END_OF_LIST()
}
};
static bool mcg_ext_ctl_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
return cpu->enable_lmce && env->mcg_ext_ctl;
}
static const VMStateDescription vmstate_mcg_ext_ctl = {
.name = "cpu/mcg_ext_ctl",
.version_id = 1,
.minimum_version_id = 1,
.needed = mcg_ext_ctl_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT64(env.mcg_ext_ctl, X86CPU),
VMSTATE_END_OF_LIST()
}
};
static bool spec_ctrl_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
return env->spec_ctrl != 0;
}
static const VMStateDescription vmstate_spec_ctrl = {
.name = "cpu/spec_ctrl",
.version_id = 1,
.minimum_version_id = 1,
.needed = spec_ctrl_needed,
.fields = (VMStateField[]){
VMSTATE_UINT64(env.spec_ctrl, X86CPU),
VMSTATE_END_OF_LIST()
}
};
static bool intel_pt_enable_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
int i;
if (env->msr_rtit_ctrl || env->msr_rtit_status ||
env->msr_rtit_output_base || env->msr_rtit_output_mask ||
env->msr_rtit_cr3_match) {
return true;
}
for (i = 0; i < MAX_RTIT_ADDRS; i++) {
if (env->msr_rtit_addrs[i]) {
return true;
}
}
return false;
}
static const VMStateDescription vmstate_msr_intel_pt = {
.name = "cpu/intel_pt",
.version_id = 1,
.minimum_version_id = 1,
.needed = intel_pt_enable_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT64(env.msr_rtit_ctrl, X86CPU),
VMSTATE_UINT64(env.msr_rtit_status, X86CPU),
VMSTATE_UINT64(env.msr_rtit_output_base, X86CPU),
VMSTATE_UINT64(env.msr_rtit_output_mask, X86CPU),
VMSTATE_UINT64(env.msr_rtit_cr3_match, X86CPU),
VMSTATE_UINT64_ARRAY(env.msr_rtit_addrs, X86CPU, MAX_RTIT_ADDRS),
VMSTATE_END_OF_LIST()
}
};
static bool virt_ssbd_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
return env->virt_ssbd != 0;
}
static const VMStateDescription vmstate_msr_virt_ssbd = {
.name = "cpu/virt_ssbd",
.version_id = 1,
.minimum_version_id = 1,
.needed = virt_ssbd_needed,
.fields = (VMStateField[]){
VMSTATE_UINT64(env.virt_ssbd, X86CPU),
VMSTATE_END_OF_LIST()
}
};
static bool svm_npt_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
return !!(env->hflags2 & HF2_NPT_MASK);
}
static const VMStateDescription vmstate_svm_npt = {
.name = "cpu/svn_npt",
.version_id = 1,
.minimum_version_id = 1,
.needed = svm_npt_needed,
.fields = (VMStateField[]){
VMSTATE_UINT64(env.nested_cr3, X86CPU),
VMSTATE_UINT32(env.nested_pg_mode, X86CPU),
VMSTATE_END_OF_LIST()
}
};
#ifndef TARGET_X86_64
static bool intel_efer32_needed(void *opaque)
{
X86CPU *cpu = opaque;
CPUX86State *env = &cpu->env;
return env->efer != 0;
}
static const VMStateDescription vmstate_efer32 = {
.name = "cpu/efer32",
.version_id = 1,
.minimum_version_id = 1,
.needed = intel_efer32_needed,
.fields = (VMStateField[]) {
VMSTATE_UINT64(env.efer, X86CPU),
VMSTATE_END_OF_LIST()
}
};
#endif
VMStateDescription vmstate_x86_cpu = {
.name = "cpu",
.version_id = 12,
.minimum_version_id = 11,
.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_STRUCT_ARRAY(env.fpregs, X86CPU, 8, 0, vmstate_fpreg, FPReg),
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),
VMSTATE_UINTTL(env.sysenter_esp, X86CPU),
VMSTATE_UINTTL(env.sysenter_eip, X86CPU),
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, 0),
#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(env.smbase, X86CPU),
VMSTATE_UINT64(env.pat, X86CPU),
VMSTATE_UINT32(env.hflags2, X86CPU),
VMSTATE_UINT64(env.vm_hsave, X86CPU),
VMSTATE_UINT64(env.vm_vmcb, X86CPU),
VMSTATE_UINT64(env.tsc_offset, X86CPU),
VMSTATE_UINT64(env.intercept, X86CPU),
VMSTATE_UINT16(env.intercept_cr_read, X86CPU),
VMSTATE_UINT16(env.intercept_cr_write, X86CPU),
VMSTATE_UINT16(env.intercept_dr_read, X86CPU),
VMSTATE_UINT16(env.intercept_dr_write, X86CPU),
VMSTATE_UINT32(env.intercept_exceptions, X86CPU),
VMSTATE_UINT8(env.v_tpr, X86CPU),
/* MTRRs */
VMSTATE_UINT64_ARRAY(env.mtrr_fixed, X86CPU, 11),
VMSTATE_UINT64(env.mtrr_deftype, X86CPU),
VMSTATE_MTRR_VARS(env.mtrr_var, X86CPU, MSR_MTRRcap_VCNT, 8),
/* KVM-related states */
VMSTATE_INT32(env.interrupt_injected, X86CPU),
VMSTATE_UINT32(env.mp_state, X86CPU),
VMSTATE_UINT64(env.tsc, X86CPU),
VMSTATE_INT32(env.exception_injected, X86CPU),
VMSTATE_UINT8(env.soft_interrupt, X86CPU),
VMSTATE_UINT8(env.nmi_injected, X86CPU),
VMSTATE_UINT8(env.nmi_pending, X86CPU),
VMSTATE_UINT8(env.has_error_code, X86CPU),
VMSTATE_UINT32(env.sipi_vector, X86CPU),
/* MCE */
VMSTATE_UINT64(env.mcg_cap, X86CPU),
VMSTATE_UINT64(env.mcg_status, X86CPU),
VMSTATE_UINT64(env.mcg_ctl, X86CPU),
VMSTATE_UINT64_ARRAY(env.mce_banks, X86CPU, MCE_BANKS_DEF * 4),
/* rdtscp */
VMSTATE_UINT64(env.tsc_aux, X86CPU),
/* KVM pvclock msr */
VMSTATE_UINT64(env.system_time_msr, X86CPU),
VMSTATE_UINT64(env.wall_clock_msr, X86CPU),
/* XSAVE related fields */
VMSTATE_UINT64_V(env.xcr0, X86CPU, 12),
VMSTATE_UINT64_V(env.xstate_bv, X86CPU, 12),
VMSTATE_YMMH_REGS_VARS(env.xmm_regs, X86CPU, 0, 12),
VMSTATE_END_OF_LIST()
/* The above list is not sorted /wrt version numbers, watch out! */
},
.subsections = (const VMStateDescription*[]) {
&vmstate_async_pf_msr,
&vmstate_pv_eoi_msr,
&vmstate_steal_time_msr,
&vmstate_fpop_ip_dp,
&vmstate_msr_tsc_adjust,
&vmstate_msr_tscdeadline,
&vmstate_msr_ia32_misc_enable,
&vmstate_msr_ia32_feature_control,
&vmstate_msr_architectural_pmu,
&vmstate_mpx,
&vmstate_msr_hypercall_hypercall,
&vmstate_msr_hyperv_vapic,
&vmstate_msr_hyperv_time,
&vmstate_msr_hyperv_crash,
&vmstate_msr_hyperv_runtime,
&vmstate_msr_hyperv_synic,
&vmstate_msr_hyperv_stimer,
&vmstate_msr_hyperv_reenlightenment,
&vmstate_avx512,
&vmstate_xss,
&vmstate_tsc_khz,
&vmstate_msr_smi_count,
#ifdef TARGET_X86_64
&vmstate_pkru,
#endif
&vmstate_spec_ctrl,
&vmstate_mcg_ext_ctl,
&vmstate_msr_intel_pt,
&vmstate_msr_virt_ssbd,
&vmstate_svm_npt,
#ifndef TARGET_X86_64
&vmstate_efer32,
#endif
NULL
}
};
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