From: Paolo Bonzini <pbonzini@redhat.com>
To: Tom Lendacky <thomas.lendacky@amd.com>,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: Sean Christopherson <seanjc@google.com>,
Alexander Graf <graf@amazon.com>
Subject: Re: [PATCH 3/3] KVM: x86: introduce complete_emulated_msr callback
Date: Tue, 15 Dec 2020 11:23:51 +0100 [thread overview]
Message-ID: <1b16db2f-cf95-b433-73fc-ad6ccb2740ae@redhat.com> (raw)
In-Reply-To: <da346203-7465-dcc8-9ed3-7e92aa136e62@amd.com>
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);
>>
>>
>
prev parent reply other threads:[~2020-12-15 10:26 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-14 18:32 [PATCH 0/3] KVM: x86: MSR completion refactoring for SEV-ES Paolo Bonzini
2020-12-14 18:32 ` [PATCH 1/3] KVM: x86: remove bogus #GP injection Paolo Bonzini
2020-12-14 20:50 ` Tom Lendacky
2020-12-14 18:32 ` [PATCH 2/3] KVM: x86: use kvm_complete_insn_gp in emulating RDMSR/WRMSR Paolo Bonzini
2020-12-14 20:52 ` Tom Lendacky
2020-12-14 18:32 ` [PATCH 3/3] KVM: x86: introduce complete_emulated_msr callback Paolo Bonzini
2020-12-14 20:55 ` Tom Lendacky
2020-12-15 10:23 ` Paolo Bonzini [this message]
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