linux-kernel - Re: [GIT pull] x86/urgent for 5.3-rc5

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Message-ID: <CAHk-=wiBqmHTFYJWOehB=k3mC7srsx0DWMCYZ7fMOC0T7v1KHA@mail.gmail.com>
Date:   Sun, 25 Aug 2019 12:35:53 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Borislav Petkov <bp@...e.de>
Cc:     Pu Wen <puwen@...on.cn>, Thomas Gleixner <tglx@...utronix.de>,
        Tom Lendacky <thomas.lendacky@....com>,
        Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        "the arch/x86 maintainers" <x86@...nel.org>
Subject: Re: [GIT pull] x86/urgent for 5.3-rc5

On Sun, Aug 25, 2019 at 12:32 PM Borislav Petkov <bp@...e.de> wrote:
>
>
> and also on all the remaining 15 CPUs of the guest. Then, suspending to
> RAM and resuming right afterwards says:
>
> and the remaining 14(!). Yes, this doesn't run on the BSP during resume.
> I think the better thing to do would be to stick this in a CPUHP
> notifier...

You know what? The days of UP are long gone, and we really only want a
one-time warning, so I think your thing is fine as-is.

It would be good to test with a known-bad setup, of course..

                   Linus