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Date: Sat, 29 Aug 2020 09:49:49 +0800 From: Chenyi Qiang <chenyi.qiang@...el.com> To: Jim Mattson <jmattson@...gle.com> Cc: Paolo Bonzini <pbonzini@...hat.com>, Sean Christopherson <sean.j.christopherson@...el.com>, Vitaly Kuznetsov <vkuznets@...hat.com>, Wanpeng Li <wanpengli@...cent.com>, Joerg Roedel <joro@...tes.org>, Xiaoyao Li <xiaoyao.li@...el.com>, kvm list <kvm@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org> Subject: Re: [PATCH 1/5] KVM: nVMX: Fix VMX controls MSRs setup when nested VMX enabled On 8/29/2020 1:43 AM, Jim Mattson wrote: > On Fri, Aug 28, 2020 at 1:54 AM Chenyi Qiang <chenyi.qiang@...el.com> wrote: >> >> KVM supports the nested VM_{EXIT, ENTRY}_LOAD_IA32_PERF_GLOBAL_CTRL and >> VM_{ENTRY_LOAD, EXIT_CLEAR}_BNDCFGS, but they doesn't expose during >> the setup of nested VMX controls MSR. >> > > Aren't these features added conditionally in > nested_vmx_entry_exit_ctls_update() and > nested_vmx_pmu_entry_exit_ctls_update()? > Yes, but I assume vmcs_config.nested should reflect the global capability of VMX MSR. KVM supports these two controls, so should be exposed here.
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