[PATCH] kvm: vmx: Fix typos in vmentry/vmexit control setting

[Yu Zhang]

Previously, 'commit f99e3daf94ff ("KVM: x86: Add Intel PT
virtualization work mode")' work mode' offered framework
to support Intel PT virtualization. However, the patch has
some typos in vmx_vmentry_ctrl() and vmx_vmexit_ctrl(), e.g.
used wrong flags and wrong variable, which will cause the
VM entry failure later.

Fixes: 'commit f99e3daf94ff ("KVM: x86: Add Intel PT virtualization work mode")'
Signed-off-by: Yu Zhang <yu.c.zhang@xxxxxxxxxxxxxxx>
---
Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Cc: "Radim KrÄmÃÅ" <rkrcmar@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: linux-kernel@xxxxxxxxxxxxxxx
---
 arch/x86/kvm/vmx/vmx.h | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h
index 9932895..267de48 100644
--- a/arch/x86/kvm/vmx/vmx.h
+++ b/arch/x86/kvm/vmx/vmx.h
@@ -445,7 +445,8 @@ static inline u32 vmx_vmentry_ctrl(void)
 {
 	u32 vmentry_ctrl = vmcs_config.vmentry_ctrl;
 	if (pt_mode == PT_MODE_SYSTEM)
-		vmentry_ctrl &= ~(VM_EXIT_PT_CONCEAL_PIP | VM_EXIT_CLEAR_IA32_RTIT_CTL);
+		vmentry_ctrl &= ~(VM_ENTRY_PT_CONCEAL_PIP |
+				  VM_ENTRY_LOAD_IA32_RTIT_CTL);
 	/* Loading of EFER and PERF_GLOBAL_CTRL are toggled dynamically */
 	return vmentry_ctrl &
 		~(VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL | VM_ENTRY_LOAD_IA32_EFER);
@@ -455,9 +456,10 @@ static inline u32 vmx_vmexit_ctrl(void)
 {
 	u32 vmexit_ctrl = vmcs_config.vmexit_ctrl;
 	if (pt_mode == PT_MODE_SYSTEM)
-		vmexit_ctrl &= ~(VM_ENTRY_PT_CONCEAL_PIP | VM_ENTRY_LOAD_IA32_RTIT_CTL);
+		vmexit_ctrl &= ~(VM_EXIT_PT_CONCEAL_PIP |
+				 VM_EXIT_CLEAR_IA32_RTIT_CTL);
 	/* Loading of EFER and PERF_GLOBAL_CTRL are toggled dynamically */
-	return vmcs_config.vmexit_ctrl &
+	return vmexit_ctrl &
 		~(VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL | VM_EXIT_LOAD_IA32_EFER);
 }
 
-- 
1.9.1