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Message-ID: <1515731128.10188.32.camel@suse.de>
Subject: [x86-tip] RSDP changes  converted i4790 box  SMP -> UP
From: Mike Galbraith <mgalbraith@suse.de>
To: Juergen Gross <jgross@suse.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Peter Zijlstra <peterz@infradead.org>,
        Ingo Molnar <mingo@kernel.org>
Date: Fri, 12 Jan 2018 05:25:28 +0100
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Hi Juergen,

Yesterday I wanted to test the RETPOLINE stuff in tip and tip-rt, but
discovered instead that my box had turned into a complete slug, not due
to incredible RETPOLINE overhead, rather because box had forgotten that
it had more than one CPU. ?I was going to leave it for the weekend, but
firing up gitk over morning java, I noticed the commits below, and sure
enough, that's what broke my box. ?Given other people's boxen work,
seems likely that the authors of the AMI BIOS in this box were a bit
more creative than usual.

commit 9ede5d5e672586e016eadd5c0aedb6f12e660029 (HEAD -> x86-tip)
Author: Mike Galbraith <mgalbraith@suse.de>
Date:   Fri Jan 12 04:17:52 2018 +0100

    Revert "x86/boot: Add the ACPI RSDP address to struct setup_header::acpi_rdsp_addr"
    
    This reverts commit 2f74cbf947f45fa082dda8eac1a1f1299a372f49.

commit 0d0b6a9a0d452eaf635580fce8319d49be8b45ed
Author: Mike Galbraith <mgalbraith@suse.de>
Date:   Fri Jan 12 04:17:30 2018 +0100

    Revert "x86/acpi: Take the RSDP address for boot parameters if available"
    
    This reverts commit 0c89cf36424f7c1177de8a5712514d7cc2eb369f.

commit 2e9b091da44e75f16b8bad776f40de83abb637ff (origin/x86-tip)
Merge: 41c34211458c 1ccb8feda747
Author: Ingo Molnar <mingo@kernel.org>
Date:   Thu Jan 11 06:54:18 2018 +0100

    Merge branch 'perf/core'