diff options
Diffstat (limited to 'target-i386')
| -rw-r--r-- | target-i386/cpu.h | 2 | ||||
| -rw-r--r-- | target-i386/exec.h | 11 | ||||
| -rw-r--r-- | target-i386/op_helper.c | 38 |
3 files changed, 24 insertions, 27 deletions
diff --git a/target-i386/cpu.h b/target-i386/cpu.h index d9253a14ed..76d2e7be73 100644 --- a/target-i386/cpu.h +++ b/target-i386/cpu.h @@ -148,7 +148,7 @@ #define HF_GIF_SHIFT 20 /* if set CPU takes interrupts */ #define HF_HIF_SHIFT 21 /* shadow copy of IF_MASK when in SVM */ #define HF_NMI_SHIFT 22 /* CPU serving NMI */ -#define HF_SVME_SHIFT 23 /* SVME enabled (copy of EFER.SVME */ +#define HF_SVME_SHIFT 23 /* SVME enabled (copy of EFER.SVME) */ #define HF_SVMI_SHIFT 24 /* SVM intercepts are active */ #define HF_CPL_MASK (3 << HF_CPL_SHIFT) diff --git a/target-i386/exec.h b/target-i386/exec.h index 90b82f3975..035881ec6c 100644 --- a/target-i386/exec.h +++ b/target-i386/exec.h @@ -397,3 +397,14 @@ static inline int cpu_halted(CPUState *env) { return EXCP_HALTED; } +/* load efer and update the corresponding hflags. XXX: do consistency + checks with cpuid bits ? */ +static inline void cpu_load_efer(CPUState *env, uint64_t val) +{ + env->efer = val; + env->hflags &= ~(HF_LMA_MASK | HF_SVME_MASK); + if (env->efer & MSR_EFER_LMA) + env->hflags |= HF_LMA_MASK; + if (env->efer & MSR_EFER_SVME) + env->hflags |= HF_SVME_MASK; +} diff --git a/target-i386/op_helper.c b/target-i386/op_helper.c index 83fa69a136..56bef6e2e5 100644 --- a/target-i386/op_helper.c +++ b/target-i386/op_helper.c @@ -1435,8 +1435,7 @@ void do_smm_enter(void) /* init SMM cpu state */ #ifdef TARGET_X86_64 - env->efer = 0; - env->hflags &= ~HF_LMA_MASK; + cpu_load_efer(env, 0); #endif load_eflags(0, ~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK)); env->eip = 0x00008000; @@ -1463,11 +1462,7 @@ void helper_rsm(void) sm_state = env->smbase + 0x8000; #ifdef TARGET_X86_64 - env->efer = ldq_phys(sm_state + 0x7ed0); - if (env->efer & MSR_EFER_LMA) - env->hflags |= HF_LMA_MASK; - else - env->hflags &= ~HF_LMA_MASK; + cpu_load_efer(env, ldq_phys(sm_state + 0x7ed0)); for(i = 0; i < 6; i++) { offset = 0x7e00 + i * 16; @@ -3069,8 +3064,10 @@ void helper_wrmsr(void) update_mask |= MSR_EFER_FFXSR; if (env->cpuid_ext2_features & CPUID_EXT2_NX) update_mask |= MSR_EFER_NXE; - env->efer = (env->efer & ~update_mask) | - (val & update_mask); + if (env->cpuid_ext3_features & CPUID_EXT3_SVM) + update_mask |= MSR_EFER_SVME; + cpu_load_efer(env, (env->efer & ~update_mask) | + (val & update_mask)); } break; case MSR_STAR: @@ -4873,10 +4870,8 @@ void helper_vmrun(void) } #ifdef TARGET_X86_64 - env->efer = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.efer)); - env->hflags &= ~HF_LMA_MASK; - if (env->efer & MSR_EFER_LMA) - env->hflags |= HF_LMA_MASK; + cpu_load_efer(env, + ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.efer))); #endif env->eflags = 0; load_eflags(ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rflags)), @@ -5224,20 +5219,11 @@ void helper_vmexit(uint32_t exit_code, uint64_t exit_info_1) env->cr[8] = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.cr8)); cpu_set_apic_tpr(env, env->cr[8]); } - /* we need to set the efer after the crs so the hidden flags get set properly */ + /* we need to set the efer after the crs so the hidden flags get + set properly */ #ifdef TARGET_X86_64 - env->efer = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.efer)); - env->hflags &= ~HF_LMA_MASK; - if (env->efer & MSR_EFER_LMA) - env->hflags |= HF_LMA_MASK; - /* XXX: should also emulate the VM_CR MSR */ - env->hflags &= ~HF_SVME_MASK; - if (env->cpuid_ext3_features & CPUID_EXT3_SVM) { - if (env->efer & MSR_EFER_SVME) - env->hflags |= HF_SVME_MASK; - } else { - env->efer &= ~MSR_EFER_SVME; - } + cpu_load_efer(env, + ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.efer))); #endif env->eflags = 0; |