From: Paolo Bonzini <pbonzini@redhat.com>
To: Xiaoyao Li <xiaoyao.li@intel.com>
Cc: Sean Christopherson <seanjc@google.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
Subject: Re: [PATCH v2 0/7] KVM: VMX: PT (processor trace) optimization cleanup and fixes
Date: Tue, 19 Oct 2021 18:52:18 +0200 [thread overview]
Message-ID: <166e2d66-1c16-29d4-3275-517310043ae0@redhat.com> (raw)
In-Reply-To: <20210827070249.924633-1-xiaoyao.li@intel.com>
On 27/08/21 09:02, Xiaoyao Li wrote:
> Patch 1-3 are optimization and cleanup.
>
> Patch 4-7 are fixes for PT. Patch 4 and 5 fix the virtulazation of PT to
> provide architectual consistent behavior for guest. Patch 6 fix the case
> that malicious userspace can exploit PT to cause vm-entry failure or #GP
> in KVM. Patch 7 fix the potential MSR access #GP if some PT MSRs not
> available on hardware.
>
> Patch 3 and patch 7 are added in v2.
Queued patches 1-4, thanks.
Paolo
prev parent reply other threads:[~2021-10-19 16:52 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-27 7:02 [PATCH v2 0/7] KVM: VMX: PT (processor trace) optimization cleanup and fixes Xiaoyao Li
2021-08-27 7:02 ` [PATCH v2 1/7] KVM: VMX: Restore host's MSR_IA32_RTIT_CTL when it's not zero Xiaoyao Li
2021-08-27 7:02 ` [PATCH v2 2/7] KVM: VMX: Use precomputed vmx->pt_desc.addr_range Xiaoyao Li
2021-08-27 7:02 ` [PATCH v2 3/7] KVM: VMX: Rename pt_desc.addr_range to pt_desc.nr_addr_range Xiaoyao Li
2021-10-18 12:41 ` Paolo Bonzini
2021-08-27 7:02 ` [PATCH v2 4/7] KVM: VMX: RTIT_CTL_BRANCH_EN has no dependency on other CPUID bit Xiaoyao Li
2021-08-27 7:02 ` [PATCH v2 5/7] KVM: VMX: Disallow PT MSRs accessing if PT is not exposed to guest Xiaoyao Li
2021-10-18 12:46 ` Paolo Bonzini
2021-08-27 7:02 ` [PATCH v2 6/7] KVM: VMX: Check Intel PT related CPUID leaves Xiaoyao Li
2021-09-09 21:41 ` Sean Christopherson
2021-09-10 1:59 ` Xiaoyao Li
2021-10-18 7:01 ` Xiaoyao Li
2021-10-18 12:47 ` Paolo Bonzini
2021-10-18 13:56 ` Xiaoyao Li
2021-10-18 17:26 ` Sean Christopherson
2021-10-19 1:46 ` Xiaoyao Li
2021-08-27 7:02 ` [PATCH v2 7/7] KVM: VMX: Only context switch some PT MSRs when they exist Xiaoyao Li
2021-10-18 13:08 ` Paolo Bonzini
2021-10-18 14:04 ` Xiaoyao Li
2021-10-18 15:20 ` Paolo Bonzini
2021-10-19 16:52 ` Paolo Bonzini [this message]
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