linux-kernel - Re: x86_64 INIT/SIPI Bug

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Message-ID: <20181109174918.GA3594@linux.intel.com>
Date:   Fri, 9 Nov 2018 09:49:18 -0800
From:   Sean Christopherson <sean.j.christopherson@...el.com>
To:     Rian Quinn <rianquinn@...il.com>
Cc:     linux-kernel@...r.kernel.org
Subject: Re: x86_64 INIT/SIPI Bug

On Thu, Nov 08, 2018 at 03:23:59PM -0700, Rian Quinn wrote:
> I apologize upfront if this is the wrong place to post this, pretty new to this.
> 
> We are working on the Bareflank Hypervisor (www.bareflank.org), and we
> are passing through the INIT/SIPI process (similar to how a VMX
> rootkit from EFI might boot the OS) and we noticed that on Arch Linux,
> the INIT/SIPI process stalls, something we are not seeing on Ubuntu.

I'm confused, INIT is blocked post-VMXON, what are you passing through?