dect
/
linux-2.6
Archived
13
0
Fork 0
Code Releases Activity

KVM: VMX: more MSR_IA32_VMX_EPT_VPID_CAP capability bits 

Required for EPT misconfiguration handler.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Marcelo Tosatti 2009-06-11 12:07:40 -03:00 committed by Avi Kivity
parent 71db602322
commit e799794e02
2 changed files with 27 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
arch/x86/include/asm/vmx.h
View File

@ -352,9 +352,16 @@ enum vmcs_field {
#define VMX_EPT_EXTENT_INDIVIDUAL_ADDR 0
#define VMX_EPT_EXTENT_CONTEXT 1
#define VMX_EPT_EXTENT_GLOBAL 2
#define VMX_EPT_EXECUTE_ONLY_BIT (1ull)
#define VMX_EPT_PAGE_WALK_4_BIT (1ull << 6)
#define VMX_EPTP_UC_BIT (1ull << 8)
#define VMX_EPTP_WB_BIT (1ull << 14)
#define VMX_EPT_2MB_PAGE_BIT (1ull << 16)
#define VMX_EPT_EXTENT_INDIVIDUAL_BIT (1ull << 24)
#define VMX_EPT_EXTENT_CONTEXT_BIT (1ull << 25)
#define VMX_EPT_EXTENT_GLOBAL_BIT (1ull << 26)
#define VMX_EPT_DEFAULT_GAW 3
#define VMX_EPT_MAX_GAW 0x4
#define VMX_EPT_MT_EPTE_SHIFT 3

20
arch/x86/kvm/vmx.c
View File

@ -270,6 +270,26 @@ static inline bool cpu_has_vmx_flexpriority(void)
cpu_has_vmx_virtualize_apic_accesses();
}
static inline bool cpu_has_vmx_ept_execute_only(void)
{
return !!(vmx_capability.ept & VMX_EPT_EXECUTE_ONLY_BIT);
}
static inline bool cpu_has_vmx_eptp_uncacheable(void)
{
return !!(vmx_capability.ept & VMX_EPTP_UC_BIT);
}
static inline bool cpu_has_vmx_eptp_writeback(void)
{
return !!(vmx_capability.ept & VMX_EPTP_WB_BIT);
}
static inline bool cpu_has_vmx_ept_2m_page(void)
{
return !!(vmx_capability.ept & VMX_EPT_2MB_PAGE_BIT);
}
static inline int cpu_has_vmx_invept_individual_addr(void)
{
return !!(vmx_capability.ept & VMX_EPT_EXTENT_INDIVIDUAL_BIT);