From: Jim Mattson <jmattson@google.com>
To: "Kaplan, David" <David.Kaplan@amd.com>
Cc: Sean Christopherson <seanjc@google.com>,
"pbonzini@redhat.com" <pbonzini@redhat.com>,
"tglx@kernel.org" <tglx@kernel.org>,
"mingo@redhat.com" <mingo@redhat.com>,
"bp@alien8.de" <bp@alien8.de>,
"dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>,
"x86@kernel.org" <x86@kernel.org>,
"hpa@zytor.com" <hpa@zytor.com>,
"shuah@kernel.org" <shuah@kernel.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-kselftest@vger.kernel.org"
<linux-kselftest@vger.kernel.org>,
"ctpence@google.com" <ctpence@google.com>
Subject: Re: [PATCH v3 3/4] KVM: x86: Virtualize AMD CPUID faulting
Date: Tue, 26 May 2026 11:38:56 -0700 [thread overview]
Message-ID: <CALMp9eQ2SLq2bVngJ1RHEfkFe5yaTDrFxXT0KNTgBZY6WRMDbw@mail.gmail.com> (raw)
In-Reply-To: <DS7PR12MB82016B1B310BD994C83B35D294072@DS7PR12MB8201.namprd12.prod.outlook.com>
On Thu, May 14, 2026 at 11:17 AM Kaplan, David <David.Kaplan@amd.com> wrote:
>
> This appears to be a bug, as most other instructions (e.g. INVPCID) that have CPL checks do the CPL checks before the VMEXIT checks. I'm following up on this internally...
Did you learn anything from the internal follow-up? The ellipsis
suggests, "stay tuned..." :)
next prev parent reply other threads:[~2026-05-26 18:39 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-13 22:46 [PATCH v3 0/4] KVM: x86: Virtualize AMD's "disable CPUID in usermode" Jim Mattson
2026-05-13 22:46 ` [PATCH v3 1/4] KVM: x86: Consolidate CPUID fault handling for emulator and interception logic Jim Mattson
2026-05-14 8:41 ` Binbin Wu
2026-05-13 22:46 ` [PATCH v3 2/4] KVM: x86: Remove supports_cpuid_fault() helper Jim Mattson
2026-05-14 8:51 ` Binbin Wu
2026-05-13 22:46 ` [PATCH v3 3/4] KVM: x86: Virtualize AMD CPUID faulting Jim Mattson
2026-05-14 13:19 ` Jim Mattson
2026-05-14 14:28 ` Sean Christopherson
2026-05-14 14:45 ` Jim Mattson
2026-05-14 16:20 ` Sean Christopherson
2026-05-14 16:22 ` Jim Mattson
2026-05-14 16:35 ` Sean Christopherson
2026-05-14 18:01 ` Jim Mattson
2026-05-14 18:17 ` Kaplan, David
2026-05-26 18:38 ` Jim Mattson [this message]
2026-05-26 21:30 ` Kaplan, David
2026-05-27 13:25 ` Jim Mattson
2026-05-13 22:46 ` [PATCH v3 4/4] KVM: selftests: Update hwcr_msr_test for CPUID faulting bit Jim Mattson
2026-05-28 22:01 [PATCH v3 3/4] KVM: x86: Virtualize AMD CPUID faulting Christian Ludloff
2026-05-29 0:00 ` Sean Christopherson
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