linux-kernel - Re: [PATCH kernel v3 3/3] x86/sev: Do not handle #VC for DR7 read/write

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Message-ID: <Y9DBqqGT+GB1TLWL@zn.tnic>
Date:   Wed, 25 Jan 2023 06:44:10 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Alexey Kardashevskiy <aik@....com>
Cc:     "Nikunj A. Dadhania" <nikunj@....com>, kvm@...r.kernel.org,
        x86@...nel.org, linux-kernel@...r.kernel.org,
        Yury Norov <yury.norov@...il.com>,
        Venu Busireddy <venu.busireddy@...cle.com>,
        Tony Luck <tony.luck@...el.com>,
        Tom Lendacky <thomas.lendacky@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Sean Christopherson <seanjc@...gle.com>,
        Sandipan Das <sandipan.das@....com>,
        Pawan Gupta <pawan.kumar.gupta@...ux.intel.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Michael Roth <michael.roth@....com>,
        Mario Limonciello <mario.limonciello@....com>,
        Kim Phillips <kim.phillips@....com>,
        Kees Cook <keescook@...omium.org>,
        Juergen Gross <jgross@...e.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Ingo Molnar <mingo@...hat.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Daniel Sneddon <daniel.sneddon@...ux.intel.com>,
        Brijesh Singh <brijesh.singh@....com>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Andrew Cooper <andrew.cooper3@...rix.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        "Jason A. Donenfeld" <Jason@...c4.com>,
        "H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH kernel v3 3/3] x86/sev: Do not handle #VC for DR7
 read/write

On Wed, Jan 25, 2023 at 02:11:27PM +1100, Alexey Kardashevskiy wrote:
> The tip/master's head just a few days ago was 195df42eb64dcb "Merge branch
> into tip/master: 'x86/platform'" and did have dcf67f724b8ada "x86/cpu, kvm:
> Add the NO_NESTED_DATA_BP feature"  but now tip/master does not have it -

Yeah, it had to be backed out. A new version will be queued soon.

> 8272720be044 "Merge x86/cache into tip/master". /me confused. What tree is
> the tree?

It still is *the* tree - just there were some issues with the KVM side of Kim's
series so it had to be dropped but he sent a new version which I need to queue
soon. Then I'll have a look at yours.

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette