From: Paolo Bonzini <pbonzini@redhat.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: vkuznets@redhat.com, mlevitsk@redhat.com,
Sean Christopherson <sean.j.christopherson@intel.com>,
Jim Mattson <jmattson@google.com>
Subject: [PATCH 08/28] KVM: nSVM: move map argument out of enter_svm_guest_mode
Date: Tue, 26 May 2020 13:22:48 -0400 [thread overview]
Message-ID: <20200526172308.111575-9-pbonzini@redhat.com> (raw)
In-Reply-To: <20200526172308.111575-1-pbonzini@redhat.com>
Unmapping the nested VMCB in enter_svm_guest_mode is a bit of a wart,
since the map is not used elsewhere in the function. There are
just two calls, so move it there.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
arch/x86/kvm/svm/nested.c | 14 ++++++--------
arch/x86/kvm/svm/svm.c | 3 ++-
arch/x86/kvm/svm/svm.h | 2 +-
3 files changed, 9 insertions(+), 10 deletions(-)
diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c
index 81e0fbd5e267..d2fc3c4aa00b 100644
--- a/arch/x86/kvm/svm/nested.c
+++ b/arch/x86/kvm/svm/nested.c
@@ -229,7 +229,7 @@ static bool nested_vmcb_checks(struct vmcb *vmcb)
}
void enter_svm_guest_mode(struct vcpu_svm *svm, u64 vmcb_gpa,
- struct vmcb *nested_vmcb, struct kvm_host_map *map)
+ struct vmcb *nested_vmcb)
{
bool evaluate_pending_interrupts =
is_intercept(svm, INTERCEPT_VINTR) ||
@@ -304,8 +304,6 @@ void enter_svm_guest_mode(struct vcpu_svm *svm, u64 vmcb_gpa,
svm->vmcb->control.pause_filter_thresh =
nested_vmcb->control.pause_filter_thresh;
- kvm_vcpu_unmap(&svm->vcpu, map, true);
-
/* Enter Guest-Mode */
enter_guest_mode(&svm->vcpu);
@@ -368,10 +366,7 @@ int nested_svm_vmrun(struct vcpu_svm *svm)
nested_vmcb->control.exit_code_hi = 0;
nested_vmcb->control.exit_info_1 = 0;
nested_vmcb->control.exit_info_2 = 0;
-
- kvm_vcpu_unmap(&svm->vcpu, &map, true);
-
- return ret;
+ goto out;
}
trace_kvm_nested_vmrun(svm->vmcb->save.rip, vmcb_gpa,
@@ -414,7 +409,7 @@ int nested_svm_vmrun(struct vcpu_svm *svm)
copy_vmcb_control_area(hsave, vmcb);
svm->nested.nested_run_pending = 1;
- enter_svm_guest_mode(svm, vmcb_gpa, nested_vmcb, &map);
+ enter_svm_guest_mode(svm, vmcb_gpa, nested_vmcb);
if (!nested_svm_vmrun_msrpm(svm)) {
svm->vmcb->control.exit_code = SVM_EXIT_ERR;
@@ -425,6 +420,9 @@ int nested_svm_vmrun(struct vcpu_svm *svm)
nested_svm_vmexit(svm);
}
+out:
+ kvm_vcpu_unmap(&svm->vcpu, &map, true);
+
return ret;
}
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index abe277a3216b..3321c402a753 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -3814,7 +3814,8 @@ static int svm_pre_leave_smm(struct kvm_vcpu *vcpu, const char *smstate)
if (kvm_vcpu_map(&svm->vcpu, gpa_to_gfn(vmcb), &map) == -EINVAL)
return 1;
nested_vmcb = map.hva;
- enter_svm_guest_mode(svm, vmcb, nested_vmcb, &map);
+ enter_svm_guest_mode(svm, vmcb, nested_vmcb);
+ kvm_vcpu_unmap(&svm->vcpu, &map, true);
}
return 0;
}
diff --git a/arch/x86/kvm/svm/svm.h b/arch/x86/kvm/svm/svm.h
index 89fab75dd4f5..33e3f09d7a8e 100644
--- a/arch/x86/kvm/svm/svm.h
+++ b/arch/x86/kvm/svm/svm.h
@@ -395,7 +395,7 @@ static inline bool nested_exit_on_nmi(struct vcpu_svm *svm)
}
void enter_svm_guest_mode(struct vcpu_svm *svm, u64 vmcb_gpa,
- struct vmcb *nested_vmcb, struct kvm_host_map *map);
+ struct vmcb *nested_vmcb);
int nested_svm_vmrun(struct vcpu_svm *svm);
void nested_svm_vmloadsave(struct vmcb *from_vmcb, struct vmcb *to_vmcb);
int nested_svm_vmexit(struct vcpu_svm *svm);
--
2.26.2
next prev parent reply other threads:[~2020-05-26 17:25 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-26 17:22 [PATCH v2 00/28] KVM: nSVM: event fixes and migration support Paolo Bonzini
2020-05-26 17:22 ` [PATCH 01/28] KVM: x86: track manually whether an event has been injected Paolo Bonzini
2020-05-26 17:22 ` [PATCH 02/28] KVM: x86: enable event window in inject_pending_event Paolo Bonzini
2020-05-29 2:16 ` Krish Sadhukhan
2020-05-29 8:47 ` Paolo Bonzini
2020-05-26 17:22 ` [PATCH 03/28] KVM: nSVM: inject exceptions via svm_check_nested_events Paolo Bonzini
2021-03-06 1:39 ` Sean Christopherson
2021-03-06 9:26 ` Paolo Bonzini
2021-03-08 16:44 ` Sean Christopherson
2021-03-08 17:28 ` Paolo Bonzini
2021-03-08 20:43 ` Sean Christopherson
2021-03-08 22:51 ` Paolo Bonzini
2020-05-26 17:22 ` [PATCH 04/28] KVM: nSVM: remove exit_required Paolo Bonzini
2020-05-26 17:22 ` [PATCH 05/28] KVM: nSVM: correctly inject INIT vmexits Paolo Bonzini
2020-05-29 6:46 ` Krish Sadhukhan
2020-05-29 8:47 ` Paolo Bonzini
2020-05-26 17:22 ` [PATCH 06/28] KVM: SVM: always update CR3 in VMCB Paolo Bonzini
2020-05-26 17:22 ` [PATCH 07/28] KVM: nVMX: always update CR3 in VMCS Paolo Bonzini
2020-05-26 17:22 ` Paolo Bonzini [this message]
2020-05-26 17:22 ` [PATCH 09/28] KVM: nSVM: extract load_nested_vmcb_control Paolo Bonzini
2020-05-26 17:22 ` [PATCH 10/28] KVM: nSVM: extract preparation of VMCB for nested run Paolo Bonzini
2020-05-26 17:22 ` [PATCH 11/28] KVM: nSVM: move MMU setup to nested_prepare_vmcb_control Paolo Bonzini
2020-05-26 17:22 ` [PATCH 12/28] KVM: nSVM: clean up tsc_offset update Paolo Bonzini
2020-05-26 17:22 ` [PATCH 13/28] KVM: nSVM: pass vmcb_control_area to copy_vmcb_control_area Paolo Bonzini
2020-05-26 17:22 ` [PATCH 14/28] KVM: nSVM: remove trailing padding for struct vmcb_control_area Paolo Bonzini
2020-05-26 17:22 ` [PATCH 15/28] KVM: nSVM: save all control fields in svm->nested Paolo Bonzini
2020-05-26 17:22 ` [PATCH 16/28] KVM: nSVM: restore clobbered INT_CTL fields after clearing VINTR Paolo Bonzini
2020-05-26 17:22 ` [PATCH 17/28] KVM: nSVM: synchronize VMCB controls updated by the processor on every vmexit Paolo Bonzini
2020-05-26 17:22 ` [PATCH 18/28] KVM: nSVM: remove unnecessary if Paolo Bonzini
2020-05-26 17:22 ` [PATCH 19/28] KVM: nSVM: extract svm_set_gif Paolo Bonzini
2020-05-26 17:23 ` [PATCH 20/28] KVM: SVM: preserve VGIF across VMCB switch Paolo Bonzini
2020-05-26 17:23 ` [PATCH 21/28] KVM: nSVM: synthesize correct EXITINTINFO on vmexit Paolo Bonzini
2020-05-26 17:23 ` [PATCH 22/28] KVM: nSVM: remove HF_VINTR_MASK Paolo Bonzini
2020-05-26 17:23 ` [PATCH 23/28] KVM: nSVM: remove HF_HIF_MASK Paolo Bonzini
2020-05-26 17:23 ` [PATCH 24/28] KVM: nSVM: split nested_vmcb_check_controls Paolo Bonzini
2020-05-26 17:23 ` [PATCH 25/28] KVM: nSVM: leave guest mode when clearing EFER.SVME Paolo Bonzini
2020-05-26 17:23 ` [PATCH 26/28] KVM: MMU: pass arbitrary CR0/CR4/EFER to kvm_init_shadow_mmu Paolo Bonzini
2020-05-26 17:23 ` [PATCH 27/28] selftests: kvm: add a SVM version of state-test Paolo Bonzini
2020-05-26 17:23 ` [PATCH 28/28] KVM: nSVM: implement KVM_GET_NESTED_STATE and KVM_SET_NESTED_STATE Paolo Bonzini
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