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| author | Eduardo Habkost <ehabkost@redhat.com> | 2014-10-03 16:39:51 -0300 |
|---|---|---|
| committer | Andreas Färber <afaerber@suse.de> | 2014-11-04 15:49:05 +0100 |
| commit | 75d373ef9729bd22fbc46bfd8dcd158cbf6d9777 (patch) | |
| tree | e16f2535c672136c7d3006f7fa1fe5985dba5cb5 /target-i386/cpu.c | |
| parent | e93abc147fa628650bdbe7fd57f27462ca40a3c2 (diff) | |
| download | hqemu-75d373ef9729bd22fbc46bfd8dcd158cbf6d9777.zip hqemu-75d373ef9729bd22fbc46bfd8dcd158cbf6d9777.tar.gz | |
target-i386: Disable SVM by default in KVM mode
Make SVM be disabled by default on all CPU models when in KVM mode.
Nested SVM is enabled by default in the KVM kernel module, but it is
probably less stable than nested VMX (which is already disabled by
default).
Add a new compat function, x86_cpu_compat_kvm_no_autodisable(), to keep
compatibility on previous machine-types.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Diffstat (limited to 'target-i386/cpu.c')
| -rw-r--r-- | target-i386/cpu.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/target-i386/cpu.c b/target-i386/cpu.c index b731832..fa860de 100644 --- a/target-i386/cpu.c +++ b/target-i386/cpu.c @@ -461,6 +461,7 @@ static uint32_t kvm_default_features[FEATURE_WORDS] = { static uint32_t kvm_default_unset_features[FEATURE_WORDS] = { [FEAT_1_EDX] = CPUID_ACPI, [FEAT_1_ECX] = CPUID_EXT_MONITOR, + [FEAT_8000_0001_ECX] = CPUID_EXT3_SVM, }; void x86_cpu_compat_kvm_no_autoenable(FeatureWord w, uint32_t features) @@ -468,6 +469,11 @@ void x86_cpu_compat_kvm_no_autoenable(FeatureWord w, uint32_t features) kvm_default_features[w] &= ~features; } +void x86_cpu_compat_kvm_no_autodisable(FeatureWord w, uint32_t features) +{ + kvm_default_unset_features[w] &= ~features; +} + /* * Returns the set of feature flags that are supported and migratable by * QEMU, for a given FeatureWord. |
