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kvm: don't use bit24 for detecting address-specific invalidation capability

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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>
This commit is contained in:
Zhang Xiantao 2012-12-05 01:55:15 +08:00 committed by Gleb Natapov
parent 0307b7b8c2
commit 2b3c5cbc0d
2 changed files with 1 additions and 18 deletions
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3
arch/x86/include/asm/vmx.h
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@ -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)

16
arch/x86/kvm/vmx.c
View file

@ -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;