From: Xiaoyao Li <xiaoyao.li@intel.com>
To: Paolo Bonzini <pbonzini@redhat.com>,
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>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
Xiaoyao Li <xiaoyao.li@intel.com>
Subject: [PATCH 0/2] KVM: VMX: Use basic exit reason for cheking and indexing
Date: Mon, 24 Feb 2020 10:07:49 +0800 [thread overview]
Message-ID: <20200224020751.1469-1-xiaoyao.li@intel.com> (raw)
Current KVM directly uses the whole 32-bit EXIT REASON when
1) checking: if (vmx->exit_reason == EXIT_REASON_*)
2) indexing: kvm_vmx_exit_handlers[exit_reason]
However, only the low 16-bit of EXIT REASON serves as basic Exit Reason.
Fix it by using the 16-bit basic exit reason.
BTW, I'm not sure if it's necessary to split nested case into a seperate
patch.
Xiaoyao Li (2):
kvm: vmx: Use basic exit reason to check if it's the specific VM EXIT
kvm: nvmx: Use basic(exit_reason) when checking specific EXIT_REASON
arch/x86/kvm/vmx/nested.c | 6 +++---
arch/x86/kvm/vmx/nested.h | 2 +-
arch/x86/kvm/vmx/vmx.c | 44 ++++++++++++++++++++-------------------
arch/x86/kvm/vmx/vmx.h | 2 ++
4 files changed, 29 insertions(+), 25 deletions(-)
--
2.23.0
next reply other threads:[~2020-02-24 2:13 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-24 2:07 Xiaoyao Li [this message]
2020-02-24 2:07 ` [PATCH 1/2] kvm: vmx: Use basic exit reason to check if it's the specific VM EXIT Xiaoyao Li
2020-02-24 10:16 ` Vitaly Kuznetsov
2020-02-24 12:01 ` Xiaoyao Li
2020-02-24 13:04 ` Vitaly Kuznetsov
2020-02-24 16:17 ` Sean Christopherson
2020-02-25 0:13 ` Xiaoyao Li
2020-02-25 6:13 ` Sean Christopherson
2020-02-25 6:41 ` Xiaoyao Li
2020-02-26 23:59 ` Sean Christopherson
2020-02-27 8:35 ` Xiaoyao Li
2020-02-27 23:57 ` Sean Christopherson
2020-02-25 0:27 ` Krish Sadhukhan
2020-02-25 13:11 ` Vitaly Kuznetsov
2020-02-25 18:28 ` Krish Sadhukhan
2020-02-24 2:07 ` [PATCH 2/2] kvm: nvmx: Use basic(exit_reason) when checking specific EXIT_REASON Xiaoyao Li
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