From: Binbin Wu <binbin.wu@linux.intel.com>
To: Sean Christopherson <seanjc@google.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
Xiaoyao Li <xiaoyao.li@intel.com>,
Kai Huang <kai.huang@intel.com>,
Rick Edgecombe <rick.p.edgecombe@intel.com>,
Yan Zhao <yan.y.zhao@intel.com>
Subject: Re: [PATCH v3 1/8] KVM: VMX: Disallow using to_vmx() in common VT code
Date: Fri, 4 Sep 2026 10:19:23 +0800 [thread overview]
Message-ID: <02491bea-3d12-464b-a219-c2b8d41d8d5b@linux.intel.com> (raw)
In-Reply-To: <20260904010353.3175819-2-seanjc@google.com>
On 9/4/2026 9:03 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().
>
> Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
> Reviewed-by: Kai Huang <kai.huang@intel.com>
> Tested-by: Kai Huang <kai.huang@intel.com>
> Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Binbin Wu <binbin.wu@linux.intel.com>
next prev parent reply other threads:[~2026-09-04 2:19 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-04 1:03 [PATCH v3 0/8] KVM: VMX: Harden against interpreting TDX vCPU as vcpu_vmx Sean Christopherson
2026-09-04 1:03 ` [PATCH v3 1/8] KVM: VMX: Disallow using to_vmx() in common VT code Sean Christopherson
2026-09-04 2:19 ` Binbin Wu [this message]
2026-09-04 1:03 ` [PATCH v3 2/8] KVM: VMX: Move the shared "IRQs off" exit handler(s) to common code Sean Christopherson
2026-09-04 2:28 ` Binbin Wu
2026-09-04 1:03 ` [PATCH v3 3/8] KVM: VMX: Move the shared NMI handler/trampoline " Sean Christopherson
2026-09-04 2:30 ` Binbin Wu
2026-09-04 1:03 ` [PATCH v3 4/8] KVM: VMX: Rename posted interrupt prefixes from "vmx" to "vt" Sean Christopherson
2026-09-04 2:41 ` Binbin Wu
2026-09-04 1:03 ` [PATCH v3 5/8] KVM: VMX: Rename EPT violation handler prefix " Sean Christopherson
2026-09-04 2:42 ` Binbin Wu
2026-09-04 1:03 ` [PATCH v3 6/8] KVM: VMX: Use dummy pseudo-overlay struct for to_vt() and vt_to_vcpu() Sean Christopherson
2026-09-04 2:54 ` Binbin Wu
2026-09-04 1:03 ` [PATCH v3 7/8] KVM: VMX: Move common VT getters/converters to common.h Sean Christopherson
2026-09-04 2:57 ` Binbin Wu
2026-09-04 1:03 ` [PATCH v3 8/8] KVM: VMX: Rename common exit info getters prefixes from "vmx" to "vt" Sean Christopherson
2026-09-04 3:00 ` Binbin Wu
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