linux-kernel - Re: [PATCH v3 0/2] x86/kvm: Enable MCE injection in the guest

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Message-ID: <20190113143719.GA25673@zn.tnic>
Date:   Sun, 13 Jan 2019 15:37:19 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     KVM <kvm@...r.kernel.org>,
        Radim Krčmář <rkrcmar@...hat.com>,
        Joerg Roedel <joro@...tes.org>,
        Tom Lendacky <thomas.lendacky@....com>,
        Tony Luck <tony.luck@...el.com>,
        Yazen Ghannam <Yazen.Ghannam@....com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 0/2] x86/kvm: Enable MCE injection in the guest

On Mon, Nov 26, 2018 at 05:41:21PM +0100, Paolo Bonzini wrote:
> On 14/11/18 19:15, Borislav Petkov wrote:
> > From: Borislav Petkov <bp@...e.de>
> > 
> > Hi all,
> > 
> > here's a rediff ontop of -rc2. No changes, only added Yazen's Tested-by.
> > 
> > Please queue,
> > thx.
> > 
> > Changelog:
> > ==========
> > 
> > v2:
> > 
> > here's v2, dropping patch 3 and incorporating hopefully all of Radim's
> > feedback.
> > 
> > v1:
> > 
> > there's this mce-inject.ko module in the kernel which allows for
> > injecting real MCEs and thus test the MCE handling code.
> > 
> > It is doubly useful to be able to inject same MCEs in a guest so that
> > testing of the MCE handling code can happen even easier/faster. In order
> > to be able to do that on an AMD guest, we need to emulate some bits
> > and pieces like the HWCR[McStatusWrEn] bit which allows writes to the
> > MCi_STATUS registers without a #GP.
> > 
> > The below does that and with it I'm able to properly inject MCEs in said
> > guest.
> > 
> > --
> > 
> > Borislav Petkov (2):
> >   kvm/x86: Move MSR_K7_HWCR to svm.c
> >   x86/kvm: Implement MSR_HWCR support
> > 
> >  arch/x86/kvm/svm.c | 20 ++++++++++++++++++++
> >  arch/x86/kvm/x86.c | 46 +++++++++++++++++++++++++++++++---------------
> >  2 files changed, 51 insertions(+), 15 deletions(-)
> > 
> 
> Queued, thanks.

Where?

I don't see them in rc1...

-- 
Regards/Gruss,
    Boris.

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