diff options
Diffstat (limited to 'target/i386/cpu.c')
| -rw-r--r-- | target/i386/cpu.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/target/i386/cpu.c b/target/i386/cpu.c index ec1efd3a3c..6bb4ce8719 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -26,6 +26,7 @@ #include "sysemu/hvf.h" #include "sysemu/cpus.h" #include "kvm_i386.h" +#include "sev_i386.h" #include "qemu/error-report.h" #include "qemu/option.h" @@ -3672,6 +3673,13 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count, *ecx = 0; *edx = 0; break; + case 0x8000001F: + *eax = sev_enabled() ? 0x2 : 0; + *ebx = sev_get_cbit_position(); + *ebx |= sev_get_reduced_phys_bits() << 6; + *ecx = 0; + *edx = 0; + break; default: /* reserved values: zero */ *eax = 0; @@ -3705,6 +3713,7 @@ static void x86_cpu_reset(CPUState *s) cpu_x86_update_cr0(env, 0x60000010); env->a20_mask = ~0x0; env->smbase = 0x30000; + env->msr_smi_count = 0; env->idt.limit = 0xffff; env->gdt.limit = 0xffff; @@ -4101,6 +4110,11 @@ static void x86_cpu_expand_features(X86CPU *cpu, Error **errp) if (env->features[FEAT_8000_0001_ECX] & CPUID_EXT3_SVM) { x86_cpu_adjust_level(cpu, &env->cpuid_min_xlevel, 0x8000000A); } + + /* SEV requires CPUID[0x8000001F] */ + if (sev_enabled()) { + x86_cpu_adjust_level(cpu, &env->cpuid_min_xlevel, 0x8000001F); + } } /* Set cpuid_*level* based on cpuid_min_*level, if not explicitly set */ |