linux-kernel - Re: State Component 18 and Palette 1 (Re: [PATCH 16/19] kvm: x86: Introduce KVM_{G|S}ET

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Message-ID: <C208E9D2-654F-4712-9BBF-90FC677CBAB3@intel.com>
Date:   Wed, 22 Dec 2021 23:47:15 +0000
From:   "Nakajima, Jun" <jun.nakajima@...el.com>
To:     Paolo Bonzini <pbonzini@...hat.com>
CC:     "Zhong, Yang" <yang.zhong@...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>,
        "Christopherson,, Sean" <seanjc@...gle.com>,
        "Tian, Kevin" <kevin.tian@...el.com>,
        "jing2.liu@...ux.intel.com" <jing2.liu@...ux.intel.com>,
        "Liu, Jing2" <jing2.liu@...el.com>
Subject: Re: State Component 18 and Palette 1 (Re: [PATCH 16/19] kvm: x86:
 Introduce KVM_{G|S}ET_XSAVE2 ioctl)

> On Dec 22, 2021, at 6:44 AM, Paolo Bonzini <pbonzini@...hat.com> wrote:
> 
> On 12/20/21 18:54, Nakajima, Jun wrote:
>> Hi Paolo,
>> I would like to confirm that the state component 18 will remain 8KB and palette 1 will remain the same.
> 
> Great!  Can you also confirm that XCR0 bits will control which palettes can be chosen by LDTILECFG?
> 

I need to discuss with the H/W team more and come back. I think this request is plausible; I will suggest it.

Thanks,
--- 
Jun