From: "Huang, Kai" <kai.huang@intel.com>
To: "pbonzini@redhat.com" <pbonzini@redhat.com>,
"seanjc@google.com" <seanjc@google.com>
Cc: "Li, Xiaoyao" <xiaoyao.li@intel.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"Zhao, Yan Y" <yan.y.zhao@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Edgecombe, Rick P" <rick.p.edgecombe@intel.com>,
"binbin.wu@linux.intel.com" <binbin.wu@linux.intel.com>
Subject: Re: [PATCH v2 3/8] KVM: VMX: Disallowing using to_vmx() in common VT code
Date: Thu, 27 Aug 2026 02:32:32 +0000 [thread overview]
Message-ID: <bce0ed51854d9d404023543baf23b89f4327e198.camel@intel.com> (raw)
In-Reply-To: <20260826171246.777729-4-seanjc@google.com>
On Wed, 2026-08-26 at 10:12 -0700, Sean Christopherson wrote:
> Poison to_vmx() in main.c and posted_intr.c so that attempting to interpret
> the vCPU as a VMX vCPU will fail at compile time, as opposed to failing at
> runtime, or worse corrupting state without outright failing.
>
> Note, to_tdx() is buried in tdx.c, i.e. isn't broadly reachable, and so
> doesn't need the same treatment as to_vmx().
>
> Signed-off-by: Sean Christopherson <seanjc@google.com>
>
Nit: as Binbin mentioned in v1:
"Disallowing" -> "Disallow" in short-log.
next prev parent reply other threads:[~2026-08-27 2:32 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-26 17:12 [PATCH v2 0/8] KVM: VMX: Harden against interpreting TDX vCPU as vcpu_vmx Sean Christopherson
2026-08-26 17:12 ` [PATCH v2 1/8] KVM: VMX: Move the shared "IRQs off" exit handler(s) to common code Sean Christopherson
2026-08-27 10:48 ` Xiaoyao Li
2026-08-27 19:34 ` Sean Christopherson
2026-08-26 17:12 ` [PATCH v2 2/8] KVM: VMX: Move the shared NMI handler/trampoline " Sean Christopherson
2026-08-27 11:20 ` Xiaoyao Li
2026-08-26 17:12 ` [PATCH v2 3/8] KVM: VMX: Disallowing using to_vmx() in common VT code Sean Christopherson
2026-08-27 2:32 ` Huang, Kai [this message]
2026-08-27 11:21 ` Xiaoyao Li
2026-08-26 17:12 ` [PATCH v2 4/8] KVM: VMX: Rename posted interrupt prefixes from "vmx" to "vt" Sean Christopherson
2026-08-26 17:22 ` sashiko-bot
2026-08-26 18:38 ` Sean Christopherson
2026-08-27 2:35 ` Huang, Kai
2026-08-27 11:38 ` Xiaoyao Li
2026-08-27 14:17 ` Sean Christopherson
2026-08-26 17:12 ` [PATCH v2 5/8] KVM: VMX: Rename EPT violation handler prefix " Sean Christopherson
2026-08-27 2:36 ` Huang, Kai
2026-08-27 11:48 ` Xiaoyao Li
2026-08-26 17:12 ` [PATCH v2 6/8] KVM: VMX: Use dummy pseudo-overlay struct for to_vt() and vt_to_vcpu() Sean Christopherson
2026-08-27 11:58 ` Xiaoyao Li
2026-08-26 17:12 ` [PATCH v2 7/8] KVM: VMX: Move common VT getters/converters to common.h Sean Christopherson
2026-08-27 12:02 ` Xiaoyao Li
2026-08-26 17:12 ` [PATCH v2 8/8] KVM: VMX: Rename common exit info getters prefixes from "vmx" to "vt" Sean Christopherson
2026-08-27 12:09 ` Xiaoyao Li
2026-08-27 2:53 ` [PATCH v2 0/8] KVM: VMX: Harden against interpreting TDX vCPU as vcpu_vmx Huang, Kai
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