From: Paolo Bonzini <pbonzini@redhat.com>
To: Yang Weijiang <weijiang.yang@intel.com>,
Sean Christopherson <seanjc@google.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
Vitaly Kuznetsov <vkuznets@redhat.com>
Subject: Re: [PATCH v2] KVM: nVMX: Sync L2 guest CET states between L1/L2
Date: Tue, 2 Mar 2021 10:33:59 +0100 [thread overview]
Message-ID: <39737fcf-ac15-006e-c21f-39f6caa3b342@redhat.com> (raw)
In-Reply-To: <20210302090532.GA5372@local-michael-cet-test>
On 02/03/21 10:05, Yang Weijiang wrote:
> I got some description from MSFT as below, do you mean that:
>
> GuestSsp uses clean field GUEST_BASIC (bit 10)
> GuestSCet/GuestInterruptSspTableAddr uses GUEST_GRP1 (bit 11)
> HostSCet/HostSsp/HostInterruptSspTableAddr uses HOST_GRP1 (bit 14)
>
> If it is, should these go into separate patch series for Hyper-v nested
> support? I have some pending patches for the enabling.
Yes, it should be a separate patch. The main patch however should add
the CET fields to EVMCS1_UNSUPPORTED_VMENTRY_CTRL and
EVMCS1_UNSUPPORTED_VMEXIT_CTRL.
Thanks,
Paolo
next prev parent reply other threads:[~2021-03-02 10:01 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-25 3:09 [PATCH] KVM: nVMX: Set X86_CR4_CET in cr4_fixed1_bits if CET IBT is enabled Yang Weijiang
2021-02-25 3:09 ` [PATCH v2] KVM: nVMX: Sync L2 guest CET states between L1/L2 Yang Weijiang
2021-03-01 17:46 ` Sean Christopherson
2021-03-02 9:05 ` Yang Weijiang
2021-03-02 9:33 ` Paolo Bonzini [this message]
2021-03-02 10:35 ` Vitaly Kuznetsov
2021-03-03 6:09 ` Yang Weijiang
2021-03-01 17:39 ` [PATCH] KVM: nVMX: Set X86_CR4_CET in cr4_fixed1_bits if CET IBT is enabled Sean Christopherson
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