From: "Edgecombe, Rick P" <rick.p.edgecombe@intel.com>
To: "seanjc@google.com" <seanjc@google.com>
Cc: "dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>,
"kas@kernel.org" <kas@kernel.org>,
"binbin.wu@linux.intel.com" <binbin.wu@linux.intel.com>,
"Li, Xiaoyao" <xiaoyao.li@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Zhao, Yan Y" <yan.y.zhao@intel.com>,
"Huang, Kai" <kai.huang@intel.com>,
"pbonzini@redhat.com" <pbonzini@redhat.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"linux-coco@lists.linux.dev" <linux-coco@lists.linux.dev>,
"x86@kernel.org" <x86@kernel.org>
Subject: Re: [PATCH] KVM: VMX: Explicitly track TDX VMs' root level instead of guessing it from CPUID
Date: Wed, 19 Aug 2026 22:36:07 +0000 [thread overview]
Message-ID: <78c2efd6749a3f07f0c381c53166b7b2b192019f.camel@intel.com> (raw)
In-Reply-To: <aoYG4XA6pXAXiHlP@google.com>
On Wed, 2026-08-19 at 12:41 -0700, Sean Christopherson wrote:
> A theme common to several (not all, but several) of the recent guest-
> exploitable vulnerabilities is that KVM *did* have relevant sanity checks, but
> KVM didn't actually do anything meaningful when a check failed and/or an
> assumption didn't hold true. It's not always possible/desirable to take
> evasive action (see below), but in most cases it is.
Ah! This is very useful. Thanks
prev parent reply other threads:[~2026-08-19 22:36 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-14 22:45 [PATCH] KVM: VMX: Explicitly track TDX VMs' root level instead of guessing it from CPUID Sean Christopherson
2026-08-19 0:53 ` Edgecombe, Rick P
2026-08-19 0:59 ` Sean Christopherson
2026-08-19 14:35 ` Edgecombe, Rick P
2026-08-19 15:56 ` Sean Christopherson
2026-08-19 17:35 ` Edgecombe, Rick P
2026-08-19 18:45 ` Sean Christopherson
2026-08-19 18:56 ` Edgecombe, Rick P
2026-08-19 19:41 ` Sean Christopherson
2026-08-19 22:36 ` Edgecombe, Rick P [this message]
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