| #include "hw/hw.h" |
| #include "hw/boards.h" |
| #include "hw/pc.h" |
| #include "hw/isa.h" |
| |
| #include "cpu.h" |
| #include "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) |
| { |
| CPUX86State *env = opaque; |
| |
| return (env->fpregs_format_vmstate == 0); |
| } |
| |
| static bool fpregs_is_1_mmx(void *opaque, int version_id) |
| { |
| CPUX86State *env = opaque; |
| 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) |
| { |
| CPUX86State *env = opaque; |
| 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) |
| { |
| CPUX86State *env = opaque; |
| 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) |
| { |
| CPUX86State *env = opaque; |
| 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 < 4; i++) |
| hw_breakpoint_insert(env, i); |
| |
| tlb_flush(env, 1); |
| return 0; |
| } |
| |
| static bool async_pf_msr_needed(void *opaque) |
| { |
| CPUX86State *cpu = opaque; |
| |
| return cpu->async_pf_en_msr != 0; |
| } |
| |
| static bool pv_eoi_msr_needed(void *opaque) |
| { |
| CPUX86State *cpu = opaque; |
| |
| return cpu->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(async_pf_en_msr, CPUX86State), |
| 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(pv_eoi_en_msr, CPUX86State), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static bool fpop_ip_dp_needed(void *opaque) |
| { |
| CPUX86State *env = opaque; |
| |
| 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(fpop, CPUX86State), |
| VMSTATE_UINT64(fpip, CPUX86State), |
| VMSTATE_UINT64(fpdp, CPUX86State), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static bool tscdeadline_needed(void *opaque) |
| { |
| CPUX86State *env = opaque; |
| |
| 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(tsc_deadline, CPUX86State), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static bool misc_enable_needed(void *opaque) |
| { |
| CPUX86State *env = opaque; |
| |
| 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(msr_ia32_misc_enable, CPUX86State), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static const VMStateDescription vmstate_cpu = { |
| .name = "cpu", |
| .version_id = CPU_SAVE_VERSION, |
| .minimum_version_id = 3, |
| .minimum_version_id_old = 3, |
| .pre_save = cpu_pre_save, |
| .post_load = cpu_post_load, |
| .fields = (VMStateField []) { |
| VMSTATE_UINTTL_ARRAY(regs, CPUX86State, CPU_NB_REGS), |
| VMSTATE_UINTTL(eip, CPUX86State), |
| VMSTATE_UINTTL(eflags, CPUX86State), |
| VMSTATE_UINT32(hflags, CPUX86State), |
| /* FPU */ |
| VMSTATE_UINT16(fpuc, CPUX86State), |
| VMSTATE_UINT16(fpus_vmstate, CPUX86State), |
| VMSTATE_UINT16(fptag_vmstate, CPUX86State), |
| VMSTATE_UINT16(fpregs_format_vmstate, CPUX86State), |
| VMSTATE_FP_REGS(fpregs, CPUX86State, 8), |
| |
| VMSTATE_SEGMENT_ARRAY(segs, CPUX86State, 6), |
| VMSTATE_SEGMENT(ldt, CPUX86State), |
| VMSTATE_SEGMENT(tr, CPUX86State), |
| VMSTATE_SEGMENT(gdt, CPUX86State), |
| VMSTATE_SEGMENT(idt, CPUX86State), |
| |
| VMSTATE_UINT32(sysenter_cs, CPUX86State), |
| #ifdef TARGET_X86_64 |
| /* Hack: In v7 size changed from 32 to 64 bits on x86_64 */ |
| VMSTATE_HACK_UINT32(sysenter_esp, CPUX86State, less_than_7), |
| VMSTATE_HACK_UINT32(sysenter_eip, CPUX86State, less_than_7), |
| VMSTATE_UINTTL_V(sysenter_esp, CPUX86State, 7), |
| VMSTATE_UINTTL_V(sysenter_eip, CPUX86State, 7), |
| #else |
| VMSTATE_UINTTL(sysenter_esp, CPUX86State), |
| VMSTATE_UINTTL(sysenter_eip, CPUX86State), |
| #endif |
| |
| VMSTATE_UINTTL(cr[0], CPUX86State), |
| VMSTATE_UINTTL(cr[2], CPUX86State), |
| VMSTATE_UINTTL(cr[3], CPUX86State), |
| VMSTATE_UINTTL(cr[4], CPUX86State), |
| VMSTATE_UINTTL_ARRAY(dr, CPUX86State, 8), |
| /* MMU */ |
| VMSTATE_INT32(a20_mask, CPUX86State), |
| /* XMM */ |
| VMSTATE_UINT32(mxcsr, CPUX86State), |
| VMSTATE_XMM_REGS(xmm_regs, CPUX86State, CPU_NB_REGS), |
| |
| #ifdef TARGET_X86_64 |
| VMSTATE_UINT64(efer, CPUX86State), |
| VMSTATE_UINT64(star, CPUX86State), |
| VMSTATE_UINT64(lstar, CPUX86State), |
| VMSTATE_UINT64(cstar, CPUX86State), |
| VMSTATE_UINT64(fmask, CPUX86State), |
| VMSTATE_UINT64(kernelgsbase, CPUX86State), |
| #endif |
| VMSTATE_UINT32_V(smbase, CPUX86State, 4), |
| |
| VMSTATE_UINT64_V(pat, CPUX86State, 5), |
| VMSTATE_UINT32_V(hflags2, CPUX86State, 5), |
| |
| VMSTATE_UINT32_TEST(halted, CPUX86State, version_is_5), |
| VMSTATE_UINT64_V(vm_hsave, CPUX86State, 5), |
| VMSTATE_UINT64_V(vm_vmcb, CPUX86State, 5), |
| VMSTATE_UINT64_V(tsc_offset, CPUX86State, 5), |
| VMSTATE_UINT64_V(intercept, CPUX86State, 5), |
| VMSTATE_UINT16_V(intercept_cr_read, CPUX86State, 5), |
| VMSTATE_UINT16_V(intercept_cr_write, CPUX86State, 5), |
| VMSTATE_UINT16_V(intercept_dr_read, CPUX86State, 5), |
| VMSTATE_UINT16_V(intercept_dr_write, CPUX86State, 5), |
| VMSTATE_UINT32_V(intercept_exceptions, CPUX86State, 5), |
| VMSTATE_UINT8_V(v_tpr, CPUX86State, 5), |
| /* MTRRs */ |
| VMSTATE_UINT64_ARRAY_V(mtrr_fixed, CPUX86State, 11, 8), |
| VMSTATE_UINT64_V(mtrr_deftype, CPUX86State, 8), |
| VMSTATE_MTRR_VARS(mtrr_var, CPUX86State, 8, 8), |
| /* KVM-related states */ |
| VMSTATE_INT32_V(interrupt_injected, CPUX86State, 9), |
| VMSTATE_UINT32_V(mp_state, CPUX86State, 9), |
| VMSTATE_UINT64_V(tsc, CPUX86State, 9), |
| VMSTATE_INT32_V(exception_injected, CPUX86State, 11), |
| VMSTATE_UINT8_V(soft_interrupt, CPUX86State, 11), |
| VMSTATE_UINT8_V(nmi_injected, CPUX86State, 11), |
| VMSTATE_UINT8_V(nmi_pending, CPUX86State, 11), |
| VMSTATE_UINT8_V(has_error_code, CPUX86State, 11), |
| VMSTATE_UINT32_V(sipi_vector, CPUX86State, 11), |
| /* MCE */ |
| VMSTATE_UINT64_V(mcg_cap, CPUX86State, 10), |
| VMSTATE_UINT64_V(mcg_status, CPUX86State, 10), |
| VMSTATE_UINT64_V(mcg_ctl, CPUX86State, 10), |
| VMSTATE_UINT64_ARRAY_V(mce_banks, CPUX86State, MCE_BANKS_DEF *4, 10), |
| /* rdtscp */ |
| VMSTATE_UINT64_V(tsc_aux, CPUX86State, 11), |
| /* KVM pvclock msr */ |
| VMSTATE_UINT64_V(system_time_msr, CPUX86State, 11), |
| VMSTATE_UINT64_V(wall_clock_msr, CPUX86State, 11), |
| /* XSAVE related fields */ |
| VMSTATE_UINT64_V(xcr0, CPUX86State, 12), |
| VMSTATE_UINT64_V(xstate_bv, CPUX86State, 12), |
| VMSTATE_YMMH_REGS_VARS(ymmh_regs, CPUX86State, 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_tscdeadline, |
| .needed = tscdeadline_needed, |
| }, { |
| .vmsd = &vmstate_msr_ia32_misc_enable, |
| .needed = misc_enable_needed, |
| } , { |
| /* empty */ |
| } |
| } |
| }; |
| |
| void cpu_save(QEMUFile *f, void *opaque) |
| { |
| vmstate_save_state(f, &vmstate_cpu, opaque); |
| } |
| |
| int cpu_load(QEMUFile *f, void *opaque, int version_id) |
| { |
| return vmstate_load_state(f, &vmstate_cpu, opaque, version_id); |
| } |
