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Date:   Thu, 30 Jul 2020 14:26:45 +0200
From:   Joerg Roedel <joro@8bytes.org>
To:     Mike Stunes <mstunes@vmware.com>
Cc:     "x86@kernel.org" <x86@kernel.org>, Joerg Roedel <jroedel@suse.de>,
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Subject: Re: [PATCH v5 00/75] x86: SEV-ES Guest Support
Message-ID: <20200730122645.GA3257@8bytes.org>
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 <B65392F4-FD42-4AA3-8AA8-6C0C0D1FF007@vmware.com>
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Hi Mike,

On Thu, Jul 30, 2020 at 01:27:48AM +0000, Mike Stunes wrote:
> 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.

Hard to tell, have you enabled FSGSBASE in the guest? If yes, can you
try to disable it?

Regards,

	Joerg