| Message ID | 20211125012857.508243-35-seanjc@google.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | x86/access: nVMX: Big overhaul | expand |
On 11/25/21 02:28, Sean Christopherson wrote: > Rename EPT_CAP_WT to EPT_CAP_EXEC_ONLY. In x86, "WT" generally refers to > write-through memtype, and is especially confusing considering that EPT > capabilities also report UC and WB memtypes. > > Signed-off-by: Sean Christopherson<seanjc@google.com> Yeah, I am not sure why it was "EPT_CAP_WT". That one should have been for bit 12 (if it was useful at all). Paolo
diff --git a/x86/vmx.c b/x86/vmx.c index e499704..6dc9a55 100644 --- a/x86/vmx.c +++ b/x86/vmx.c @@ -1606,7 +1606,7 @@ static void test_vmx_caps(void) "MSR_IA32_VMX_VMCS_ENUM"); fixed0 = -1ull; - fixed0 &= ~(EPT_CAP_WT | + fixed0 &= ~(EPT_CAP_EXEC_ONLY | EPT_CAP_PWL4 | EPT_CAP_PWL5 | EPT_CAP_UC | diff --git a/x86/vmx.h b/x86/vmx.h index e6126e4..d3e95f5 100644 --- a/x86/vmx.h +++ b/x86/vmx.h @@ -697,7 +697,7 @@ enum vm_entry_failure_code { #define EPT_IGNORE_PAT (1ul << 6) #define EPT_SUPPRESS_VE (1ull << 63) -#define EPT_CAP_WT 1ull +#define EPT_CAP_EXEC_ONLY (1ull << 0) #define EPT_CAP_PWL4 (1ull << 6) #define EPT_CAP_PWL5 (1ull << 7) #define EPT_CAP_UC (1ull << 8) @@ -807,7 +807,7 @@ static inline bool ept_huge_pages_supported(int level) static inline bool ept_execute_only_supported(void) { - return ept_vpid.val & EPT_CAP_WT; + return ept_vpid.val & EPT_CAP_EXEC_ONLY; } static inline bool ept_ad_bits_supported(void)
Rename EPT_CAP_WT to EPT_CAP_EXEC_ONLY. In x86, "WT" generally refers to write-through memtype, and is especially confusing considering that EPT capabilities also report UC and WB memtypes. Signed-off-by: Sean Christopherson <seanjc@google.com> --- x86/vmx.c | 2 +- x86/vmx.h | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-)