linux-kernel - Re: [BISECTED] KVM error with 5.0-rc

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Date:   Mon, 14 Jan 2019 12:07:37 -0800
From:   Sean Christopherson <sean.j.christopherson@...el.com>
To:     Harald Arnesen <harald@...gtun.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Paolo Bonzini <pbonzini@...hat.com>
Subject: Re: [BISECTED] KVM error with 5.0-rc

On Mon, Jan 14, 2019 at 08:17:10PM +0100, Harald Arnesen wrote:
> Sean Christopherson [14.01.2019 19:33]:
> 
> > On Mon, Jan 14, 2019 at 06:04:27PM +0100, Harald Arnesen wrote:
> >> Qemu with KVM acceleration fails with kernel 5.0-rc1 and 5.0-rc2.
> >> It works fine with 4.20.
> 
> > Can you test the attached patch?  Found a bug when re-inspecting the
> > guilty commit, the wrong VMCS field is being modifying when applying an
> > errata to disable VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL.  Your CPU is
> > listed as one of the models affected by the errata.  Compile tested only.
> 
> Yes, this patch fixes the error.

Awesome, thanks!

> 
> Feel free to add a "Tested-by: Harald Arnesen <harald@...gtun.org>".
> -- 
> Hilsen Harald