Messages in this thread | | | Date | Sat, 1 Jul 2023 09:54:00 +0800 | Subject | Re: [PATCH v3 10/21] KVM:x86: Add #CP support in guest exception classification | From | "Yang, Weijiang" <> |
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On 6/30/2023 11:05 PM, Neiger, Gil wrote: > Intel will not produce any CPU with CET that does not enumerate IA32_VMX_BASIC[56] as 1. > > One can check that bit before injecting a #CP with error code, but it should not be necessary if CET is enumerated. > > Of course, if the KVM may run as a guest of another VMM/hypervisor, it may be that the virtual CPU in which KVM operates may enumerate CET but clear the bit in IA32_VMX_BASIC. > > - Gil Thanks Gil for clarity! > > -----Original Message----- > From: Yang, Weijiang <weijiang.yang@intel.com> > Sent: Friday, June 30, 2023 05:05 > To: Gao, Chao <chao.gao@intel.com> > Cc: Christopherson,, Sean <seanjc@google.com>; pbonzini@redhat.com; kvm@vger.kernel.org; linux-kernel@vger.kernel.org; peterz@infradead.org; rppt@kernel.org; binbin.wu@linux.intel.com; Edgecombe, Rick P <rick.p.edgecombe@intel.com>; john.allen@amd.com; Neiger, Gil <gil.neiger@intel.com> > Subject: Re: [PATCH v3 10/21] KVM:x86: Add #CP support in guest exception classification > > > On 6/30/2023 6:27 PM, Chao Gao wrote: > [...]
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