Re: [PATCH] x86, CPU, AMD: Add workaround for family 16h, erratum793

From: Pavel Machek
Date: Sat Jan 18 2014 - 06:31:50 EST

On Sat 2014-01-18 12:26:20, Borislav Petkov wrote:
> On Sat, Jan 18, 2014 at 12:08:29PM +0100, Pavel Machek wrote:
> > ?? By the time userspace is booted, you have overwritten the MSR, and
> > information, if the BIOS is buggy, was lost.
> Bullshit - if you don't apply the workaround, the bit in the MSR remains
> unset.

If you do not apply the workaround, you have the buggy system that may
or may not boot. There's even CVE for it.

(cesky, pictures)
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