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Re: [Qemu-devel] [PATCH] Revert "acpi: mark PMTIMER as unlocked"

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH] Revert "acpi: mark PMTIMER as unlocked"
Date: Fri, 15 Apr 2016 12:10:01 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.7.1

On 15/04/2016 08:43, Gerd Hoffmann wrote:
> This reverts commit 7070e085d490c396f9237c8f10bf8b6e69cd0066.
> Commit message claims locking is not needed, but that appears
> to not be true, seabios ehci driver runs into timekeeping problems
> with this, see
>       https://bugzilla.redhat.com/show_bug.cgi?id=1322713

I need to look into it further, because for example the same problem
would happen if you moved the PMTIMER to the hypervisor (Xen does this).
 But for now this is the right fix, I agree.


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