From: Sean Christopherson <sean.j.christopherson@intel.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <sean.j.christopherson@intel.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Wanpeng Li <wanpengli@tencent.com>,
Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
Xiaoyao Li <xiaoyao.li@intel.com>
Subject: [PATCH v2 04/10] KVM: nVMX: Move nested VM-Exit tracepoint into nested_vmx_reflect_vmexit()
Date: Wed, 15 Apr 2020 10:55:13 -0700 [thread overview]
Message-ID: <20200415175519.14230-5-sean.j.christopherson@intel.com> (raw)
In-Reply-To: <20200415175519.14230-1-sean.j.christopherson@intel.com>
Move the tracepoint for nested VM-Exits in preparation of splitting the
reflection logic into L1 wants the exit vs. L0 always handles the exit.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
---
arch/x86/kvm/vmx/nested.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index cb7fd78ad9da..de122ef3eeed 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -5648,19 +5648,13 @@ static bool nested_vmx_exit_handled_mtf(struct vmcs12 *vmcs12)
*/
static bool nested_vmx_exit_reflected(struct kvm_vcpu *vcpu, u32 exit_reason)
{
- u32 intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
struct vcpu_vmx *vmx = to_vmx(vcpu);
struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
-
- trace_kvm_nested_vmexit(kvm_rip_read(vcpu), exit_reason,
- vmcs_readl(EXIT_QUALIFICATION),
- vmx->idt_vectoring_info,
- intr_info,
- vmcs_read32(VM_EXIT_INTR_ERROR_CODE),
- KVM_ISA_VMX);
+ u32 intr_info;
switch (exit_reason) {
case EXIT_REASON_EXCEPTION_NMI:
+ intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
if (is_nmi(intr_info))
return false;
else if (is_page_fault(intr_info))
@@ -5828,6 +5822,14 @@ bool nested_vmx_reflect_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason)
goto reflect_vmexit;
}
+ exit_intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
+ exit_qual = vmcs_readl(EXIT_QUALIFICATION);
+
+ trace_kvm_nested_vmexit(kvm_rip_read(vcpu), exit_reason, exit_qual,
+ vmx->idt_vectoring_info, exit_intr_info,
+ vmcs_read32(VM_EXIT_INTR_ERROR_CODE),
+ KVM_ISA_VMX);
+
if (!nested_vmx_exit_reflected(vcpu, exit_reason))
return false;
@@ -5838,7 +5840,6 @@ bool nested_vmx_reflect_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason)
*/
WARN_ON(exit_reason == EXIT_REASON_EXTERNAL_INTERRUPT);
- exit_intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
if ((exit_intr_info &
(INTR_INFO_VALID_MASK | INTR_INFO_DELIVER_CODE_MASK)) ==
(INTR_INFO_VALID_MASK | INTR_INFO_DELIVER_CODE_MASK)) {
@@ -5847,7 +5848,6 @@ bool nested_vmx_reflect_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason)
vmcs12->vm_exit_intr_error_code =
vmcs_read32(VM_EXIT_INTR_ERROR_CODE);
}
- exit_qual = vmcs_readl(EXIT_QUALIFICATION);
reflect_vmexit:
nested_vmx_vmexit(vcpu, exit_reason, exit_intr_info, exit_qual);
--
2.26.0
next prev parent reply other threads:[~2020-04-15 17:56 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-15 17:55 [PATCH v2 00/10] KVM: VMX: Unionize vcpu_vmx.exit_reason Sean Christopherson
2020-04-15 17:55 ` [PATCH v2 01/10] KVM: nVMX: Move reflection check into nested_vmx_reflect_vmexit() Sean Christopherson
2020-04-15 17:55 ` [PATCH v2 02/10] KVM: nVMX: Uninline nested_vmx_reflect_vmexit(), i.e. move it to nested.c Sean Christopherson
2020-04-15 17:55 ` [PATCH v2 03/10] KVM: nVMX: Move VM-Fail check out of nested_vmx_exit_reflected() Sean Christopherson
2020-04-15 17:55 ` Sean Christopherson [this message]
2020-04-15 17:55 ` [PATCH v2 05/10] KVM: nVMX: Split VM-Exit reflection logic into L0 vs. L1 wants Sean Christopherson
2020-04-15 17:55 ` [PATCH v2 06/10] KVM: nVMX: Drop a superfluous WARN on reflecting EXTERNAL_INTERRUPT Sean Christopherson
2020-04-15 17:55 ` [PATCH v2 07/10] KVM: nVMX: Pull exit_reason from vcpu_vmx in nested_vmx_reflect_vmexit() Sean Christopherson
2020-04-15 17:55 ` [PATCH v2 08/10] KVM: nVMX: Cast exit_reason to u16 to check for nested EXTERNAL_INTERRUPT Sean Christopherson
2020-04-15 17:55 ` [PATCH v2 09/10] KVM: nVMX: Rename exit_reason to vm_exit_reason for nested VM-Exit Sean Christopherson
2020-04-15 17:55 ` [PATCH v2 10/10] KVM: VMX: Convert vcpu_vmx.exit_reason to a union Sean Christopherson
2020-04-16 13:44 ` [PATCH v2 00/10] KVM: VMX: Unionize vcpu_vmx.exit_reason Paolo Bonzini
2020-04-16 15:07 ` Sean Christopherson
2020-04-21 8:11 ` Sean Christopherson
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