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-rw-r--r--target/i386/machine.c1047
1 files changed, 1047 insertions, 0 deletions
diff --git a/target/i386/machine.c b/target/i386/machine.c
new file mode 100644
index 0000000000..760f82b6c7
--- /dev/null
+++ b/target/i386/machine.c
@@ -0,0 +1,1047 @@
+#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 "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)
+
+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;
+
+ /*
+ * 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);
+ }
+
+}
+
+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;
+ }
+
+ /*
+ * 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;
+ }
+ update_fp_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. */
+ target_ulong 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, 1);
+
+ if (tcg_enabled()) {
+ cpu_smm_update(cpu);
+ }
+ 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 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_X64_MSR_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_X64_MSR_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 const VMStateDescription vmstate_msr_hyperv_synic = {
+ .name = "cpu/msr_hyperv_synic",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .needed = hyperv_synic_enable_needed,
+ .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_SYNIC_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_SYNIC_STIMER_COUNT),
+ VMSTATE_UINT64_ARRAY(env.msr_hv_stimer_count,
+ X86CPU, HV_SYNIC_STIMER_COUNT),
+ 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()
+ }
+};
+
+VMStateDescription vmstate_x86_cpu = {
+ .name = "cpu",
+ .version_id = 12,
+ .minimum_version_id = 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, 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_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, MSR_MTRRcap_VCNT, 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.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_avx512,
+ &vmstate_xss,
+ &vmstate_tsc_khz,
+#ifdef TARGET_X86_64
+ &vmstate_pkru,
+#endif
+ &vmstate_mcg_ext_ctl,
+ NULL
+ }
+};