From: Xiaoyao Li <xiaoyao.li@intel.com>
To: Sean Christopherson <seanjc@google.com>,
Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
Rick Edgecombe <rick.p.edgecombe@intel.com>,
Binbin Wu <binbin.wu@linux.intel.com>,
Kai Huang <kai.huang@intel.com>, Yan Zhao <yan.y.zhao@intel.com>
Subject: Re: [PATCH v2 3/8] KVM: VMX: Disallowing using to_vmx() in common VT code
Date: Thu, 27 Aug 2026 19:21:10 +0800 [thread overview]
Message-ID: <15c473e0-1ea5-4d35-b4f2-e07b21f87e11@intel.com> (raw)
In-Reply-To: <20260826171246.777729-4-seanjc@google.com>
On 8/27/2026 1:12 AM, 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>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
next prev parent reply other threads:[~2026-08-27 11:21 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
2026-08-27 11:21 ` Xiaoyao Li [this message]
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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