diff options
| author | Eduardo Habkost <ehabkost@redhat.com> | 2012-10-04 17:49:00 -0300 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2012-10-30 23:39:47 -0200 |
| commit | 84bd945cf298650096691509e7e9170036605e02 (patch) | |
| tree | 67311e3cf9cf5de68e11b1be7b5a71d96d1ff052 /target-i386 | |
| parent | c2acb022c83fbaf7fdd7ab9538d44ae6e0e94f94 (diff) | |
i386: kvm: set CPUID_EXT_HYPERVISOR on kvm_arch_get_supported_cpuid()
Full grep for kvm_arch_get_supported_cpuid:
kvm.h:uint32_t kvm_arch_get_supported_cpuid(KVMState *env, uint32_t function,
target-i386/cpu.c: x86_cpu_def->cpuid_7_0_ebx_features = kvm_arch_get_supported_cpuid(kvm_state, 0x7, 0, R_EBX);
target-i386/cpu.c: *eax = kvm_arch_get_supported_cpuid(s, 0xA, count, R_EAX);
target-i386/cpu.c: *ebx = kvm_arch_get_supported_cpuid(s, 0xA, count, R_EBX);
target-i386/cpu.c: *ecx = kvm_arch_get_supported_cpuid(s, 0xA, count, R_ECX);
target-i386/cpu.c: *edx = kvm_arch_get_supported_cpuid(s, 0xA, count, R_EDX);
target-i386/cpu.c: *eax = kvm_arch_get_supported_cpuid(s, 0xd, count, R_EAX);
target-i386/cpu.c: *ebx = kvm_arch_get_supported_cpuid(s, 0xd, count, R_EBX);
target-i386/cpu.c: *ecx = kvm_arch_get_supported_cpuid(s, 0xd, count, R_ECX);
target-i386/cpu.c: *edx = kvm_arch_get_supported_cpuid(s, 0xd, count, R_EDX);
target-i386/kvm.c:uint32_t kvm_arch_get_supported_cpuid(KVMState *s, uint32_t function,
target-i386/kvm.c: cpuid_1_edx = kvm_arch_get_supported_cpuid(s, 1, 0, R_EDX);
target-i386/kvm.c: env->cpuid_features &= kvm_arch_get_supported_cpuid(s, 1, 0, R_EDX);
* target-i386/kvm.c: env->cpuid_ext_features &= kvm_arch_get_supported_cpuid(s, 1, 0, R_ECX);
target-i386/kvm.c: env->cpuid_ext2_features &= kvm_arch_get_supported_cpuid(s, 0x80000001,
target-i386/kvm.c: env->cpuid_ext3_features &= kvm_arch_get_supported_cpuid(s, 0x80000001,
target-i386/kvm.c: env->cpuid_svm_features &= kvm_arch_get_supported_cpuid(s, 0x8000000A,
target-i386/kvm.c: kvm_arch_get_supported_cpuid(s, KVM_CPUID_FEATURES, 0, R_EAX);
target-i386/kvm.c: kvm_arch_get_supported_cpuid(s, 0xC0000001, 0, R_EDX);
Note that there is only one call for CPUID[1].ECX above (*), and it is
the one that gets hacked to include CPUID_EXT_HYPERVISOR, so we can
simply make kvm_arch_get_supported_cpuid() set it, to let the rest of
the code automatically know that the flag can be safely set by QEMU.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'target-i386')
| -rw-r--r-- | target-i386/kvm.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/target-i386/kvm.c b/target-i386/kvm.c index 1f943c5c5a..aabac72a66 100644 --- a/target-i386/kvm.c +++ b/target-i386/kvm.c @@ -196,6 +196,11 @@ uint32_t kvm_arch_get_supported_cpuid(KVMState *s, uint32_t function, if (function == 1 && reg == R_EDX) { /* KVM before 2.6.30 misreports the following features */ ret |= CPUID_MTRR | CPUID_PAT | CPUID_MCE | CPUID_MCA; + } else if (function == 1 && reg == R_ECX) { + /* We can set the hypervisor flag, even if KVM does not return it on + * GET_SUPPORTED_CPUID + */ + ret |= CPUID_EXT_HYPERVISOR; } else if (function == 0x80000001 && reg == R_EDX) { /* On Intel, kvm returns cpuid according to the Intel spec, * so add missing bits according to the AMD spec: @@ -399,10 +404,8 @@ int kvm_arch_init_vcpu(CPUX86State *env) env->cpuid_features &= kvm_arch_get_supported_cpuid(s, 1, 0, R_EDX); - i = env->cpuid_ext_features & CPUID_EXT_HYPERVISOR; j = env->cpuid_ext_features & CPUID_EXT_TSC_DEADLINE_TIMER; env->cpuid_ext_features &= kvm_arch_get_supported_cpuid(s, 1, 0, R_ECX); - env->cpuid_ext_features |= i; if (j && kvm_irqchip_in_kernel() && kvm_check_extension(s, KVM_CAP_TSC_DEADLINE_TIMER)) { env->cpuid_ext_features |= CPUID_EXT_TSC_DEADLINE_TIMER; |