diff mbox series

[3/3] KVM: x86: introduce complete_emulated_msr callback

Message ID 20201214183250.1034541-4-pbonzini@redhat.com (mailing list archive)
State New, archived
Headers show
Series KVM: x86: MSR completion refactoring for SEV-ES | expand

Commit Message

Paolo Bonzini Dec. 14, 2020, 6:32 p.m. UTC
This will be used by SEV-ES to inject MSR failure via the GHCB.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/include/asm/kvm_host.h | 1 +
 arch/x86/kvm/svm/svm.c          | 1 +
 arch/x86/kvm/vmx/vmx.c          | 1 +
 arch/x86/kvm/x86.c              | 8 ++++----
 4 files changed, 7 insertions(+), 4 deletions(-)

Comments

Tom Lendacky Dec. 14, 2020, 8:55 p.m. UTC | #1
On 12/14/20 12:32 PM, Paolo Bonzini wrote:
> This will be used by SEV-ES to inject MSR failure via the GHCB.
> 
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>

(Changed Sean's email on this reply, but missed the others...)

> ---
>  arch/x86/include/asm/kvm_host.h | 1 +
>  arch/x86/kvm/svm/svm.c          | 1 +
>  arch/x86/kvm/vmx/vmx.c          | 1 +
>  arch/x86/kvm/x86.c              | 8 ++++----
>  4 files changed, 7 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
> index 8cf6b0493d49..18aa15e6fadd 100644
> --- a/arch/x86/include/asm/kvm_host.h
> +++ b/arch/x86/include/asm/kvm_host.h
> @@ -1285,6 +1285,7 @@ struct kvm_x86_ops {
>  
>  	void (*migrate_timers)(struct kvm_vcpu *vcpu);
>  	void (*msr_filter_changed)(struct kvm_vcpu *vcpu);
> +	int (*complete_emulated_msr)(struct kvm_vcpu *vcpu, int err);
>  };
>  
>  struct kvm_x86_nested_ops {
> diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
> index 801e0a641258..4067d511be08 100644
> --- a/arch/x86/kvm/svm/svm.c
> +++ b/arch/x86/kvm/svm/svm.c
> @@ -4306,6 +4306,7 @@ static struct kvm_x86_ops svm_x86_ops __initdata = {
>  	.apic_init_signal_blocked = svm_apic_init_signal_blocked,
>  
>  	.msr_filter_changed = svm_msr_filter_changed,
> +	.complete_emulated_msr = kvm_complete_insn_gp,
>  };
>  
>  static struct kvm_x86_init_ops svm_init_ops __initdata = {
> diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
> index 849be2a9f260..55fa51c0cd9d 100644
> --- a/arch/x86/kvm/vmx/vmx.c
> +++ b/arch/x86/kvm/vmx/vmx.c
> @@ -7701,6 +7701,7 @@ static struct kvm_x86_ops vmx_x86_ops __initdata = {
>  	.migrate_timers = vmx_migrate_timers,
>  
>  	.msr_filter_changed = vmx_msr_filter_changed,
> +	.complete_emulated_msr = kvm_complete_insn_gp,
>  	.cpu_dirty_log_size = vmx_cpu_dirty_log_size,
>  };
>  
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index 2f1bc52e70c0..6c4482b97c91 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -1642,12 +1642,12 @@ static int complete_emulated_rdmsr(struct kvm_vcpu *vcpu)
>  		kvm_rdx_write(vcpu, vcpu->run->msr.data >> 32);
>  	}
>  
> -	return kvm_complete_insn_gp(vcpu, err);
> +	return kvm_x86_ops.complete_emulated_msr(vcpu, err);
>  }
>  
>  static int complete_emulated_wrmsr(struct kvm_vcpu *vcpu)
>  {
> -	return kvm_complete_insn_gp(vcpu, vcpu->run->msr.error);
> +	return kvm_x86_ops.complete_emulated_msr(vcpu, vcpu->run->msr.error);
>  }
>  
>  static u64 kvm_msr_reason(int r)
> @@ -1720,7 +1720,7 @@ int kvm_emulate_rdmsr(struct kvm_vcpu *vcpu)
>  		trace_kvm_msr_read_ex(ecx);
>  	}
>  
> -	return kvm_complete_insn_gp(vcpu, r);
> +	return kvm_x86_ops.complete_emulated_msr(vcpu, r);
>  }
>  EXPORT_SYMBOL_GPL(kvm_emulate_rdmsr);
>  
> @@ -1747,7 +1747,7 @@ int kvm_emulate_wrmsr(struct kvm_vcpu *vcpu)
>  	else
>  		trace_kvm_msr_write_ex(ecx, data);
>  
> -	return kvm_complete_insn_gp(vcpu, r);
> +	return kvm_x86_ops.complete_emulated_msr(vcpu, r);
>  }
>  EXPORT_SYMBOL_GPL(kvm_emulate_wrmsr);
>  
>
Paolo Bonzini Dec. 15, 2020, 10:23 a.m. UTC | #2
On 14/12/20 21:55, Tom Lendacky wrote:
> On 12/14/20 12:32 PM, Paolo Bonzini wrote:
>> This will be used by SEV-ES to inject MSR failure via the GHCB.
>>
>> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> 
> Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
> 
> (Changed Sean's email on this reply, but missed the others...)

Thanks for the review, I pushed to kvm/queue now.

Paolo

>> ---
>>   arch/x86/include/asm/kvm_host.h | 1 +
>>   arch/x86/kvm/svm/svm.c          | 1 +
>>   arch/x86/kvm/vmx/vmx.c          | 1 +
>>   arch/x86/kvm/x86.c              | 8 ++++----
>>   4 files changed, 7 insertions(+), 4 deletions(-)
>>
>> diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
>> index 8cf6b0493d49..18aa15e6fadd 100644
>> --- a/arch/x86/include/asm/kvm_host.h
>> +++ b/arch/x86/include/asm/kvm_host.h
>> @@ -1285,6 +1285,7 @@ struct kvm_x86_ops {
>>   
>>   	void (*migrate_timers)(struct kvm_vcpu *vcpu);
>>   	void (*msr_filter_changed)(struct kvm_vcpu *vcpu);
>> +	int (*complete_emulated_msr)(struct kvm_vcpu *vcpu, int err);
>>   };
>>   
>>   struct kvm_x86_nested_ops {
>> diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
>> index 801e0a641258..4067d511be08 100644
>> --- a/arch/x86/kvm/svm/svm.c
>> +++ b/arch/x86/kvm/svm/svm.c
>> @@ -4306,6 +4306,7 @@ static struct kvm_x86_ops svm_x86_ops __initdata = {
>>   	.apic_init_signal_blocked = svm_apic_init_signal_blocked,
>>   
>>   	.msr_filter_changed = svm_msr_filter_changed,
>> +	.complete_emulated_msr = kvm_complete_insn_gp,
>>   };
>>   
>>   static struct kvm_x86_init_ops svm_init_ops __initdata = {
>> diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
>> index 849be2a9f260..55fa51c0cd9d 100644
>> --- a/arch/x86/kvm/vmx/vmx.c
>> +++ b/arch/x86/kvm/vmx/vmx.c
>> @@ -7701,6 +7701,7 @@ static struct kvm_x86_ops vmx_x86_ops __initdata = {
>>   	.migrate_timers = vmx_migrate_timers,
>>   
>>   	.msr_filter_changed = vmx_msr_filter_changed,
>> +	.complete_emulated_msr = kvm_complete_insn_gp,
>>   	.cpu_dirty_log_size = vmx_cpu_dirty_log_size,
>>   };
>>   
>> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
>> index 2f1bc52e70c0..6c4482b97c91 100644
>> --- a/arch/x86/kvm/x86.c
>> +++ b/arch/x86/kvm/x86.c
>> @@ -1642,12 +1642,12 @@ static int complete_emulated_rdmsr(struct kvm_vcpu *vcpu)
>>   		kvm_rdx_write(vcpu, vcpu->run->msr.data >> 32);
>>   	}
>>   
>> -	return kvm_complete_insn_gp(vcpu, err);
>> +	return kvm_x86_ops.complete_emulated_msr(vcpu, err);
>>   }
>>   
>>   static int complete_emulated_wrmsr(struct kvm_vcpu *vcpu)
>>   {
>> -	return kvm_complete_insn_gp(vcpu, vcpu->run->msr.error);
>> +	return kvm_x86_ops.complete_emulated_msr(vcpu, vcpu->run->msr.error);
>>   }
>>   
>>   static u64 kvm_msr_reason(int r)
>> @@ -1720,7 +1720,7 @@ int kvm_emulate_rdmsr(struct kvm_vcpu *vcpu)
>>   		trace_kvm_msr_read_ex(ecx);
>>   	}
>>   
>> -	return kvm_complete_insn_gp(vcpu, r);
>> +	return kvm_x86_ops.complete_emulated_msr(vcpu, r);
>>   }
>>   EXPORT_SYMBOL_GPL(kvm_emulate_rdmsr);
>>   
>> @@ -1747,7 +1747,7 @@ int kvm_emulate_wrmsr(struct kvm_vcpu *vcpu)
>>   	else
>>   		trace_kvm_msr_write_ex(ecx, data);
>>   
>> -	return kvm_complete_insn_gp(vcpu, r);
>> +	return kvm_x86_ops.complete_emulated_msr(vcpu, r);
>>   }
>>   EXPORT_SYMBOL_GPL(kvm_emulate_wrmsr);
>>   
>>
>
diff mbox series

Patch

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 8cf6b0493d49..18aa15e6fadd 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1285,6 +1285,7 @@  struct kvm_x86_ops {
 
 	void (*migrate_timers)(struct kvm_vcpu *vcpu);
 	void (*msr_filter_changed)(struct kvm_vcpu *vcpu);
+	int (*complete_emulated_msr)(struct kvm_vcpu *vcpu, int err);
 };
 
 struct kvm_x86_nested_ops {
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 801e0a641258..4067d511be08 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -4306,6 +4306,7 @@  static struct kvm_x86_ops svm_x86_ops __initdata = {
 	.apic_init_signal_blocked = svm_apic_init_signal_blocked,
 
 	.msr_filter_changed = svm_msr_filter_changed,
+	.complete_emulated_msr = kvm_complete_insn_gp,
 };
 
 static struct kvm_x86_init_ops svm_init_ops __initdata = {
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 849be2a9f260..55fa51c0cd9d 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -7701,6 +7701,7 @@  static struct kvm_x86_ops vmx_x86_ops __initdata = {
 	.migrate_timers = vmx_migrate_timers,
 
 	.msr_filter_changed = vmx_msr_filter_changed,
+	.complete_emulated_msr = kvm_complete_insn_gp,
 	.cpu_dirty_log_size = vmx_cpu_dirty_log_size,
 };
 
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 2f1bc52e70c0..6c4482b97c91 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1642,12 +1642,12 @@  static int complete_emulated_rdmsr(struct kvm_vcpu *vcpu)
 		kvm_rdx_write(vcpu, vcpu->run->msr.data >> 32);
 	}
 
-	return kvm_complete_insn_gp(vcpu, err);
+	return kvm_x86_ops.complete_emulated_msr(vcpu, err);
 }
 
 static int complete_emulated_wrmsr(struct kvm_vcpu *vcpu)
 {
-	return kvm_complete_insn_gp(vcpu, vcpu->run->msr.error);
+	return kvm_x86_ops.complete_emulated_msr(vcpu, vcpu->run->msr.error);
 }
 
 static u64 kvm_msr_reason(int r)
@@ -1720,7 +1720,7 @@  int kvm_emulate_rdmsr(struct kvm_vcpu *vcpu)
 		trace_kvm_msr_read_ex(ecx);
 	}
 
-	return kvm_complete_insn_gp(vcpu, r);
+	return kvm_x86_ops.complete_emulated_msr(vcpu, r);
 }
 EXPORT_SYMBOL_GPL(kvm_emulate_rdmsr);
 
@@ -1747,7 +1747,7 @@  int kvm_emulate_wrmsr(struct kvm_vcpu *vcpu)
 	else
 		trace_kvm_msr_write_ex(ecx, data);
 
-	return kvm_complete_insn_gp(vcpu, r);
+	return kvm_x86_ops.complete_emulated_msr(vcpu, r);
 }
 EXPORT_SYMBOL_GPL(kvm_emulate_wrmsr);