linux-kernel - Re: [PATCH v2 22/23] kvm: x86: Disable interception for IA32

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Message-ID: <015e7a47-19b1-9bee-14ff-c3ee4739a59c@redhat.com>
Date:   Tue, 21 Dec 2021 09:46:44 +0100
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     "Liu, Jing2" <jing2.liu@...el.com>,
        "x86@...nel.org" <x86@...nel.org>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "bp@...en8.de" <bp@...en8.de>,
        "dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>
Cc:     "Christopherson,, Sean" <seanjc@...gle.com>,
        "Nakajima, Jun" <jun.nakajima@...el.com>,
        "Tian, Kevin" <kevin.tian@...el.com>,
        "jing2.liu@...ux.intel.com" <jing2.liu@...ux.intel.com>,
        "Zeng, Guang" <guang.zeng@...el.com>,
        "Wang, Wei W" <wei.w.wang@...el.com>,
        "Zhong, Yang" <yang.zhong@...el.com>
Subject: Re: [PATCH v2 22/23] kvm: x86: Disable interception for IA32_XFD on
 demand

On 12/21/21 07:42, Liu, Jing2 wrote:
>> Please instead add a "case" to vmx_set_msr:
> OK, it seems the passthrough setup is preferred in vmx.c.
> Do we also want a case in vmx_get_msr (for patch 11), even though
> no specific handling there?

No, thanks.

Paolo