From 2b3c5cbc0d814437fe4d70cc11ed60550b95b29f Mon Sep 17 00:00:00 2001 From: Zhang Xiantao Date: Wed, 5 Dec 2012 01:55:15 +0800 Subject: [PATCH] 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 Signed-off-by: Gleb Natapov --- arch/x86/include/asm/vmx.h | 3 +-- arch/x86/kvm/vmx.c | 16 ---------------- 2 files changed, 1 insertion(+), 18 deletions(-) diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h index 36ec21c..c2d56b3 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 d2248b3..32485d8 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; -- 2.7.4