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| author | Zhang Xiantao <xiantao.zhang@intel.com> | 2012-12-05 01:55:15 +0800 |
|---|---|---|
| committer | Gleb Natapov <gleb@redhat.com> | 2012-12-05 16:35:48 +0200 |
| commit | 2b3c5cbc0d814437fe4d70cc11ed60550b95b29f (patch) | |
| tree | 4800e096169c97af7cc0df3da9423c5f9a6baad4 /arch/x86 | |
| parent | 0307b7b8c275e65552f6022a18ad91902ae25d42 (diff) | |
| download | lwn-2b3c5cbc0d814437fe4d70cc11ed60550b95b29f.tar.gz lwn-2b3c5cbc0d814437fe4d70cc11ed60550b95b29f.zip | |
kvm: don't use bit24 for detecting address-specific invalidation capability
Bit24 in VMX_EPT_VPID_CAP_MASI is not used for address-specific invalidation capability
reporting, so remove it from KVM to avoid conflicts in future.
Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/vmx.h | 3 | ||||
| -rw-r--r-- | arch/x86/kvm/vmx.c | 16 |
2 files changed, 1 insertions, 18 deletions
diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h index 36ec21c36d68..c2d56b34830d 100644 --- a/arch/x86/include/asm/vmx.h +++ b/arch/x86/include/asm/vmx.h @@ -445,8 +445,7 @@ enum vmcs_field { #define VMX_EPTP_WB_BIT (1ull << 14) #define VMX_EPT_2MB_PAGE_BIT (1ull << 16) #define VMX_EPT_1GB_PAGE_BIT (1ull << 17) -#define VMX_EPT_AD_BIT (1ull << 21) -#define VMX_EPT_EXTENT_INDIVIDUAL_BIT (1ull << 24) +#define VMX_EPT_AD_BIT (1ull << 21) #define VMX_EPT_EXTENT_CONTEXT_BIT (1ull << 25) #define VMX_EPT_EXTENT_GLOBAL_BIT (1ull << 26) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index d2248b3dbb61..32485d8d05d4 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -802,11 +802,6 @@ static inline bool cpu_has_vmx_ept_ad_bits(void) return vmx_capability.ept & VMX_EPT_AD_BIT; } -static inline bool cpu_has_vmx_invept_individual_addr(void) -{ - return vmx_capability.ept & VMX_EPT_EXTENT_INDIVIDUAL_BIT; -} - static inline bool cpu_has_vmx_invept_context(void) { return vmx_capability.ept & VMX_EPT_EXTENT_CONTEXT_BIT; @@ -1062,17 +1057,6 @@ static inline void ept_sync_context(u64 eptp) } } -static inline void ept_sync_individual_addr(u64 eptp, gpa_t gpa) -{ - if (enable_ept) { - if (cpu_has_vmx_invept_individual_addr()) - __invept(VMX_EPT_EXTENT_INDIVIDUAL_ADDR, - eptp, gpa); - else - ept_sync_context(eptp); - } -} - static __always_inline unsigned long vmcs_readl(unsigned long field) { unsigned long value; |