X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=target-i386%2Fmachine.c;h=e568da2ba41d648cd971d99923572c79416014f9;hb=60aad298cb6de52f2716b2e82e1353ea9de95fd6;hp=8354572c7b991ae7a68f531beeb87476c974701a;hpb=217da7fdeb2a4c99c49f22f9dc64c8df2e3a4387;p=qemu.git diff --git a/target-i386/machine.c b/target-i386/machine.c index 8354572c7..e568da2ba 100644 --- a/target-i386/machine.c +++ b/target-i386/machine.c @@ -1,7 +1,7 @@ #include "hw/hw.h" #include "hw/boards.h" -#include "hw/pc.h" -#include "hw/isa.h" +#include "hw/i386/pc.h" +#include "hw/isa/isa.h" #include "cpu.h" #include "sysemu/kvm.h" @@ -171,14 +171,16 @@ static const VMStateInfo vmstate_fpreg_1_no_mmx = { static bool fpregs_is_0(void *opaque, int version_id) { - CPUX86State *env = opaque; + X86CPU *cpu = opaque; + CPUX86State *env = &cpu->env; return (env->fpregs_format_vmstate == 0); } static bool fpregs_is_1_mmx(void *opaque, int version_id) { - CPUX86State *env = opaque; + X86CPU *cpu = opaque; + CPUX86State *env = &cpu->env; int guess_mmx; guess_mmx = ((env->fptag_vmstate == 0xff) && @@ -188,7 +190,8 @@ static bool fpregs_is_1_mmx(void *opaque, int version_id) static bool fpregs_is_1_no_mmx(void *opaque, int version_id) { - CPUX86State *env = opaque; + X86CPU *cpu = opaque; + CPUX86State *env = &cpu->env; int guess_mmx; guess_mmx = ((env->fptag_vmstate == 0xff) && @@ -237,7 +240,8 @@ static const VMStateInfo vmstate_hack_uint64_as_uint32 = { static void cpu_pre_save(void *opaque) { - CPUX86State *env = opaque; + X86CPU *cpu = opaque; + CPUX86State *env = &cpu->env; int i; /* FPU */ @@ -248,13 +252,50 @@ static void cpu_pre_save(void *opaque) } 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) { - CPUX86State *env = opaque; + X86CPU *cpu = opaque; + CPUX86State *env = &cpu->env; int i; + /* + * 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); + } + /* XXX: restore FPU round state */ env->fpstt = (env->fpus_vmstate >> 11) & 7; env->fpus = env->fpus_vmstate & ~0x3800; @@ -265,34 +306,53 @@ static int cpu_post_load(void *opaque, int version_id) cpu_breakpoint_remove_all(env, BP_CPU); cpu_watchpoint_remove_all(env, BP_CPU); - for (i = 0; i < 4; i++) + 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) { - CPUX86State *cpu = opaque; + X86CPU *cpu = opaque; - return cpu->async_pf_en_msr != 0; + return cpu->env.async_pf_en_msr != 0; } static bool pv_eoi_msr_needed(void *opaque) { - CPUX86State *cpu = opaque; + X86CPU *cpu = opaque; - return cpu->pv_eoi_en_msr != 0; + 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, + .minimum_version_id_old = 1, + .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, .minimum_version_id_old = 1, .fields = (VMStateField []) { - VMSTATE_UINT64(async_pf_en_msr, CPUX86State), + VMSTATE_UINT64(env.async_pf_en_msr, X86CPU), VMSTATE_END_OF_LIST() } }; @@ -303,14 +363,15 @@ static const VMStateDescription vmstate_pv_eoi_msr = { .minimum_version_id = 1, .minimum_version_id_old = 1, .fields = (VMStateField []) { - VMSTATE_UINT64(pv_eoi_en_msr, CPUX86State), + VMSTATE_UINT64(env.pv_eoi_en_msr, X86CPU), VMSTATE_END_OF_LIST() } }; static bool fpop_ip_dp_needed(void *opaque) { - CPUX86State *env = opaque; + X86CPU *cpu = opaque; + CPUX86State *env = &cpu->env; return env->fpop != 0 || env->fpip != 0 || env->fpdp != 0; } @@ -321,16 +382,17 @@ static const VMStateDescription vmstate_fpop_ip_dp = { .minimum_version_id = 1, .minimum_version_id_old = 1, .fields = (VMStateField []) { - VMSTATE_UINT16(fpop, CPUX86State), - VMSTATE_UINT64(fpip, CPUX86State), - VMSTATE_UINT64(fpdp, CPUX86State), + 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) { - CPUX86State *env = opaque; + X86CPU *cpu = opaque; + CPUX86State *env = &cpu->env; return env->tsc_adjust != 0; } @@ -341,14 +403,15 @@ static const VMStateDescription vmstate_msr_tsc_adjust = { .minimum_version_id = 1, .minimum_version_id_old = 1, .fields = (VMStateField[]) { - VMSTATE_UINT64(tsc_adjust, CPUX86State), + VMSTATE_UINT64(env.tsc_adjust, X86CPU), VMSTATE_END_OF_LIST() } }; static bool tscdeadline_needed(void *opaque) { - CPUX86State *env = opaque; + X86CPU *cpu = opaque; + CPUX86State *env = &cpu->env; return env->tsc_deadline != 0; } @@ -359,129 +422,190 @@ static const VMStateDescription vmstate_msr_tscdeadline = { .minimum_version_id = 1, .minimum_version_id_old = 1, .fields = (VMStateField []) { - VMSTATE_UINT64(tsc_deadline, CPUX86State), + VMSTATE_UINT64(env.tsc_deadline, X86CPU), VMSTATE_END_OF_LIST() } }; static bool misc_enable_needed(void *opaque) { - CPUX86State *env = 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, .minimum_version_id_old = 1, .fields = (VMStateField []) { - VMSTATE_UINT64(msr_ia32_misc_enable, CPUX86State), + 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, + .minimum_version_id_old = 1, + .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, + .minimum_version_id_old = 1, + .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 const VMStateDescription vmstate_cpu = { +const VMStateDescription vmstate_x86_cpu = { .name = "cpu", - .version_id = CPU_SAVE_VERSION, + .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(regs, CPUX86State, CPU_NB_REGS), - VMSTATE_UINTTL(eip, CPUX86State), - VMSTATE_UINTTL(eflags, CPUX86State), - VMSTATE_UINT32(hflags, CPUX86State), + 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(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), + 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(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), + 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(sysenter_esp, CPUX86State), - VMSTATE_UINTTL(sysenter_eip, CPUX86State), + VMSTATE_UINTTL(env.sysenter_esp, X86CPU), + VMSTATE_UINTTL(env.sysenter_eip, X86CPU), #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), + 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(a20_mask, CPUX86State), + VMSTATE_INT32(env.a20_mask, X86CPU), /* XMM */ - VMSTATE_UINT32(mxcsr, CPUX86State), - VMSTATE_XMM_REGS(xmm_regs, CPUX86State, CPU_NB_REGS), + VMSTATE_UINT32(env.mxcsr, X86CPU), + VMSTATE_XMM_REGS(env.xmm_regs, X86CPU, 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), + 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(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), + 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(mtrr_fixed, CPUX86State, 11, 8), - VMSTATE_UINT64_V(mtrr_deftype, CPUX86State, 8), - VMSTATE_MTRR_VARS(mtrr_var, CPUX86State, 8, 8), + 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(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), + 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(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), + 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(tsc_aux, CPUX86State, 11), + VMSTATE_UINT64_V(env.tsc_aux, X86CPU, 11), /* KVM pvclock msr */ - VMSTATE_UINT64_V(system_time_msr, CPUX86State, 11), - VMSTATE_UINT64_V(wall_clock_msr, CPUX86State, 11), + VMSTATE_UINT64_V(env.system_time_msr, X86CPU, 11), + VMSTATE_UINT64_V(env.wall_clock_msr, X86CPU, 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_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! */ }, @@ -492,6 +616,9 @@ static const VMStateDescription vmstate_cpu = { } , { .vmsd = &vmstate_pv_eoi_msr, .needed = pv_eoi_msr_needed, + } , { + .vmsd = &vmstate_steal_time_msr, + .needed = steal_time_msr_needed, } , { .vmsd = &vmstate_fpop_ip_dp, .needed = fpop_ip_dp_needed, @@ -504,18 +631,14 @@ static const VMStateDescription vmstate_cpu = { }, { .vmsd = &vmstate_msr_ia32_misc_enable, .needed = misc_enable_needed, + }, { + .vmsd = &vmstate_msr_ia32_feature_control, + .needed = feature_control_needed, + }, { + .vmsd = &vmstate_msr_architectural_pmu, + .needed = pmu_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); -}