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

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Date:   Thu, 30 Jul 2020 01:27:48 +0000
From:   Mike Stunes <mstunes@...are.com>
To:     Joerg Roedel <joro@...tes.org>
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 Joerg,

> On Jul 24, 2020, at 9:02 AM, Joerg Roedel <joro@...tes.org> wrote:
> 
> From: Joerg Roedel <jroedel@...e.de>
> 
> Hi,
> 
> here is a rebased version of the latest SEV-ES patches. They are now
> based on latest tip/master instead of upstream Linux and include the
> necessary changes.

Thanks for the updated patches! I applied this patch-set onto commit
01634f2bd42e ("Merge branch 'x86/urgent’”) from your tree. It boots,
but CPU 1 (on a two-CPU VM) is offline at boot, and `chcpu -e 1` returns:

chcpu: CPU 1 enable failed: Input/output error

with nothing in dmesg to indicate why it failed. The first thing I thought
of was anything relating to the AP jump table, but I haven’t changed
anything there on the hypervisor side. Let me know what other data I can
provide for you.

Mike