linux-kernel - Re: [PATCH v5 00/75] x86: SEV-ES Guest Support

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Message-ID: <20200818150746.GA3319@8bytes.org>
Date:   Tue, 18 Aug 2020 17:07:46 +0200
From:   Joerg Roedel <joro@...tes.org>
To:     Mike Stunes <mstunes@...are.com>
Cc:     "x86@...nel.org" <x86@...nel.org>, Joerg Roedel <jroedel@...e.de>,
        "hpa@...or.com" <hpa@...or.com>, Andy Lutomirski <luto@...nel.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Jiri Slaby <jslaby@...e.cz>,
        Dan Williams <dan.j.williams@...el.com>,
        Tom Lendacky <thomas.lendacky@....com>,
        Juergen Gross <jgross@...e.com>,
        Kees Cook <keescook@...omium.org>,
        David Rientjes <rientjes@...gle.com>,
        Cfir Cohen <cfir@...gle.com>,
        Erdem Aktas <erdemaktas@...gle.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        Martin Radev <martin.b.radev@...il.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "virtualization@...ts.linux-foundation.org" 
        <virtualization@...ts.linux-foundation.org>
Subject: Re: [PATCH v5 00/75] x86: SEV-ES Guest Support

Hi Mike,

On Thu, Jul 30, 2020 at 11:23:50PM +0000, Mike Stunes wrote:
> Yes, FSGSBASE was enabled. If I disable it*, this kernel boots fine, with
> both CPUs online.
> 
> *That is, by forcing guest-CPUID[7].EBX bit 0 to 0.

Can you please test whether

	https://git.kernel.org/pub/scm/linux/kernel/git/joro/linux.git/log/?h=sev-es-client-tip-5.9

still triggers this issue on your side?

Thanks,

	Joerg