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Date:   Tue, 27 Jun 2023 10:43:14 -0700
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Subject: Re: [PATCH v1 2/6] KVM: x86: Virtualize CR4.LASS
From:   Sean Christopherson <seanjc@google.com>
To:     Zeng Guang <guang.zeng@intel.com>
Cc:     Paolo Bonzini <pbonzini@redhat.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        H Peter Anvin <hpa@zytor.com>, kvm@vger.kernel.org,
        x86@kernel.org, linux-kernel@vger.kernel.org
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On Thu, Jun 01, 2023, Zeng Guang wrote:
> Virtualize CR4.LASS[bit 27] under KVM control instead of being guest-owned
> as CR4.LASS generally set once for each vCPU at boot time and won't be
> toggled at runtime. Besides, only if VM has LASS capability enumerated with
> CPUID.(EAX=07H.ECX=1):EAX.LASS[bit 6], KVM allows guest software to be able
> to set CR4.LASS.
>
> Updating cr4_fixed1 to set CR4.LASS bit in the emulated IA32_VMX_CR4_FIXED1
> MSR for guests and allow guests to enable LASS in nested VMX operaion as well.

s/operaion/operation.