* [PATCH] KVM: VMX: Add VMX_FEATURE_USR_WAIT_PAUSE
@ 2020-02-16 10:48 Xiaoyao Li
2020-02-17 8:52 ` Vitaly Kuznetsov
0 siblings, 1 reply; 4+ messages in thread
From: Xiaoyao Li @ 2020-02-16 10:48 UTC (permalink / raw)
To: Paolo Bonzini, Sean Christopherson, Vitaly Kuznetsov, Wanpeng Li,
Jim Mattson, Joerg Roedel, Thomas Gleixner, Ingo Molnar,
Borislav Petkov, H. Peter Anvin
Cc: Xiaoyao Li, x86, kvm, linux-kernel
Commit 159348784ff0 ("x86/vmx: Introduce VMX_FEATURES_*") missed
bit 26 (enable user wait and pause) of Secondary Processor-based
VM-Execution Controls.
Add VMX_FEATURE_USR_WAIT_PAUSE flag and use it to define
SECONDARY_EXEC_ENABLE_USR_WAIT_PAUSE to make them uniformly.
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
---
arch/x86/include/asm/vmx.h | 2 +-
arch/x86/include/asm/vmxfeatures.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
index 2a85287b3685..8521af3fef27 100644
--- a/arch/x86/include/asm/vmx.h
+++ b/arch/x86/include/asm/vmx.h
@@ -72,7 +72,7 @@
#define SECONDARY_EXEC_MODE_BASED_EPT_EXEC VMCS_CONTROL_BIT(MODE_BASED_EPT_EXEC)
#define SECONDARY_EXEC_PT_USE_GPA VMCS_CONTROL_BIT(PT_USE_GPA)
#define SECONDARY_EXEC_TSC_SCALING VMCS_CONTROL_BIT(TSC_SCALING)
-#define SECONDARY_EXEC_ENABLE_USR_WAIT_PAUSE 0x04000000
+#define SECONDARY_EXEC_ENABLE_USR_WAIT_PAUSE VMCS_CONTROL_BIT(USR_WAIT_PAUSE)
#define PIN_BASED_EXT_INTR_MASK VMCS_CONTROL_BIT(INTR_EXITING)
#define PIN_BASED_NMI_EXITING VMCS_CONTROL_BIT(NMI_EXITING)
diff --git a/arch/x86/include/asm/vmxfeatures.h b/arch/x86/include/asm/vmxfeatures.h
index a50e4a0de315..1408f526bd90 100644
--- a/arch/x86/include/asm/vmxfeatures.h
+++ b/arch/x86/include/asm/vmxfeatures.h
@@ -81,6 +81,7 @@
#define VMX_FEATURE_MODE_BASED_EPT_EXEC ( 2*32+ 22) /* "ept_mode_based_exec" Enable separate EPT EXEC bits for supervisor vs. user */
#define VMX_FEATURE_PT_USE_GPA ( 2*32+ 24) /* "" Processor Trace logs GPAs */
#define VMX_FEATURE_TSC_SCALING ( 2*32+ 25) /* Scale hardware TSC when read in guest */
+#define VMX_FEATURE_USR_WAIT_PAUSE ( 2*32+ 26) /* "" Enable TPAUSE, UMONITOR, UMWATI in guest */
#define VMX_FEATURE_ENCLV_EXITING ( 2*32+ 28) /* "" VM-Exit on ENCLV (leaf dependent) */
#endif /* _ASM_X86_VMXFEATURES_H */
--
2.19.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] KVM: VMX: Add VMX_FEATURE_USR_WAIT_PAUSE
2020-02-16 10:48 [PATCH] KVM: VMX: Add VMX_FEATURE_USR_WAIT_PAUSE Xiaoyao Li
@ 2020-02-17 8:52 ` Vitaly Kuznetsov
2020-02-17 8:57 ` Xiaoyao Li
0 siblings, 1 reply; 4+ messages in thread
From: Vitaly Kuznetsov @ 2020-02-17 8:52 UTC (permalink / raw)
To: Xiaoyao Li
Cc: x86, kvm, linux-kernel, Paolo Bonzini, Sean Christopherson,
Wanpeng Li, Jim Mattson, Joerg Roedel, Thomas Gleixner,
Ingo Molnar, Borislav Petkov, H. Peter Anvin
Xiaoyao Li <xiaoyao.li@intel.com> writes:
> Commit 159348784ff0 ("x86/vmx: Introduce VMX_FEATURES_*") missed
> bit 26 (enable user wait and pause) of Secondary Processor-based
> VM-Execution Controls.
>
> Add VMX_FEATURE_USR_WAIT_PAUSE flag and use it to define
> SECONDARY_EXEC_ENABLE_USR_WAIT_PAUSE to make them uniformly.
>
> Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
> ---
> arch/x86/include/asm/vmx.h | 2 +-
> arch/x86/include/asm/vmxfeatures.h | 1 +
> 2 files changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
> index 2a85287b3685..8521af3fef27 100644
> --- a/arch/x86/include/asm/vmx.h
> +++ b/arch/x86/include/asm/vmx.h
> @@ -72,7 +72,7 @@
> #define SECONDARY_EXEC_MODE_BASED_EPT_EXEC VMCS_CONTROL_BIT(MODE_BASED_EPT_EXEC)
> #define SECONDARY_EXEC_PT_USE_GPA VMCS_CONTROL_BIT(PT_USE_GPA)
> #define SECONDARY_EXEC_TSC_SCALING VMCS_CONTROL_BIT(TSC_SCALING)
> -#define SECONDARY_EXEC_ENABLE_USR_WAIT_PAUSE 0x04000000
> +#define SECONDARY_EXEC_ENABLE_USR_WAIT_PAUSE VMCS_CONTROL_BIT(USR_WAIT_PAUSE)
>
> #define PIN_BASED_EXT_INTR_MASK VMCS_CONTROL_BIT(INTR_EXITING)
> #define PIN_BASED_NMI_EXITING VMCS_CONTROL_BIT(NMI_EXITING)
> diff --git a/arch/x86/include/asm/vmxfeatures.h b/arch/x86/include/asm/vmxfeatures.h
> index a50e4a0de315..1408f526bd90 100644
> --- a/arch/x86/include/asm/vmxfeatures.h
> +++ b/arch/x86/include/asm/vmxfeatures.h
> @@ -81,6 +81,7 @@
> #define VMX_FEATURE_MODE_BASED_EPT_EXEC ( 2*32+ 22) /* "ept_mode_based_exec" Enable separate EPT EXEC bits for supervisor vs. user */
> #define VMX_FEATURE_PT_USE_GPA ( 2*32+ 24) /* "" Processor Trace logs GPAs */
> #define VMX_FEATURE_TSC_SCALING ( 2*32+ 25) /* Scale hardware TSC when read in guest */
> +#define VMX_FEATURE_USR_WAIT_PAUSE ( 2*32+ 26) /* "" Enable TPAUSE, UMONITOR, UMWATI in guest */
"UMWAIT"
> #define VMX_FEATURE_ENCLV_EXITING ( 2*32+ 28) /* "" VM-Exit on ENCLV (leaf dependent) */
>
> #endif /* _ASM_X86_VMXFEATURES_H */
With the typo fixed (likely upon commit),
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
--
Vitaly
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] KVM: VMX: Add VMX_FEATURE_USR_WAIT_PAUSE
2020-02-17 8:52 ` Vitaly Kuznetsov
@ 2020-02-17 8:57 ` Xiaoyao Li
2020-02-17 17:14 ` Paolo Bonzini
0 siblings, 1 reply; 4+ messages in thread
From: Xiaoyao Li @ 2020-02-17 8:57 UTC (permalink / raw)
To: Vitaly Kuznetsov
Cc: x86, kvm, linux-kernel, Paolo Bonzini, Sean Christopherson,
Wanpeng Li, Jim Mattson, Joerg Roedel, Thomas Gleixner,
Ingo Molnar, Borislav Petkov, H. Peter Anvin
On 2/17/2020 4:52 PM, Vitaly Kuznetsov wrote:
> Xiaoyao Li <xiaoyao.li@intel.com> writes:
>
>> Commit 159348784ff0 ("x86/vmx: Introduce VMX_FEATURES_*") missed
>> bit 26 (enable user wait and pause) of Secondary Processor-based
>> VM-Execution Controls.
>>
>> Add VMX_FEATURE_USR_WAIT_PAUSE flag and use it to define
>> SECONDARY_EXEC_ENABLE_USR_WAIT_PAUSE to make them uniformly.
>>
>> Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
>> ---
>> arch/x86/include/asm/vmx.h | 2 +-
>> arch/x86/include/asm/vmxfeatures.h | 1 +
>> 2 files changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
>> index 2a85287b3685..8521af3fef27 100644
>> --- a/arch/x86/include/asm/vmx.h
>> +++ b/arch/x86/include/asm/vmx.h
>> @@ -72,7 +72,7 @@
>> #define SECONDARY_EXEC_MODE_BASED_EPT_EXEC VMCS_CONTROL_BIT(MODE_BASED_EPT_EXEC)
>> #define SECONDARY_EXEC_PT_USE_GPA VMCS_CONTROL_BIT(PT_USE_GPA)
>> #define SECONDARY_EXEC_TSC_SCALING VMCS_CONTROL_BIT(TSC_SCALING)
>> -#define SECONDARY_EXEC_ENABLE_USR_WAIT_PAUSE 0x04000000
>> +#define SECONDARY_EXEC_ENABLE_USR_WAIT_PAUSE VMCS_CONTROL_BIT(USR_WAIT_PAUSE)
>>
>> #define PIN_BASED_EXT_INTR_MASK VMCS_CONTROL_BIT(INTR_EXITING)
>> #define PIN_BASED_NMI_EXITING VMCS_CONTROL_BIT(NMI_EXITING)
>> diff --git a/arch/x86/include/asm/vmxfeatures.h b/arch/x86/include/asm/vmxfeatures.h
>> index a50e4a0de315..1408f526bd90 100644
>> --- a/arch/x86/include/asm/vmxfeatures.h
>> +++ b/arch/x86/include/asm/vmxfeatures.h
>> @@ -81,6 +81,7 @@
>> #define VMX_FEATURE_MODE_BASED_EPT_EXEC ( 2*32+ 22) /* "ept_mode_based_exec" Enable separate EPT EXEC bits for supervisor vs. user */
>> #define VMX_FEATURE_PT_USE_GPA ( 2*32+ 24) /* "" Processor Trace logs GPAs */
>> #define VMX_FEATURE_TSC_SCALING ( 2*32+ 25) /* Scale hardware TSC when read in guest */
>> +#define VMX_FEATURE_USR_WAIT_PAUSE ( 2*32+ 26) /* "" Enable TPAUSE, UMONITOR, UMWATI in guest */
>
> "UMWAIT"
What an uncareful typo. Thanks!
>> #define VMX_FEATURE_ENCLV_EXITING ( 2*32+ 28) /* "" VM-Exit on ENCLV (leaf dependent) */
>>
>> #endif /* _ASM_X86_VMXFEATURES_H */
>
> With the typo fixed (likely upon commit),
>
> Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] KVM: VMX: Add VMX_FEATURE_USR_WAIT_PAUSE
2020-02-17 8:57 ` Xiaoyao Li
@ 2020-02-17 17:14 ` Paolo Bonzini
0 siblings, 0 replies; 4+ messages in thread
From: Paolo Bonzini @ 2020-02-17 17:14 UTC (permalink / raw)
To: Xiaoyao Li, Vitaly Kuznetsov
Cc: x86, kvm, linux-kernel, Sean Christopherson, Wanpeng Li,
Jim Mattson, Joerg Roedel, Thomas Gleixner, Ingo Molnar,
Borislav Petkov, H. Peter Anvin
On 17/02/20 09:57, Xiaoyao Li wrote:
> What an uncareful typo. Thanks!
No problem, queued.
Paolo
>>> #define VMX_FEATURE_ENCLV_EXITING ( 2*32+ 28) /* "" VM-Exit on
>>> ENCLV (leaf dependent) */
>>> #endif /* _ASM_X86_VMXFEATURES_H */
>>
>> With the typo fixed (likely upon commit),
>>
>> Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
>>
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2020-02-17 17:16 UTC | newest]
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2020-02-16 10:48 [PATCH] KVM: VMX: Add VMX_FEATURE_USR_WAIT_PAUSE Xiaoyao Li
2020-02-17 8:52 ` Vitaly Kuznetsov
2020-02-17 8:57 ` Xiaoyao Li
2020-02-17 17:14 ` Paolo Bonzini
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