[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH 4/4] [wip] ehci: don't flush cache on dorbell ri
|
From: |
Gerd Hoffmann |
|
Subject: |
Re: [Qemu-devel] [PATCH 4/4] [wip] ehci: don't flush cache on dorbell rings. |
|
Date: |
Thu, 21 Jun 2012 11:28:03 +0200 |
|
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:10.0.5) Gecko/20120601 Thunderbird/10.0.5 |
On 06/20/12 14:41, Gerd Hoffmann wrote:
> Commit 4be23939ab0d7019c7e59a37485b416fbbf0f073 makes ehci instantly
> zap any unlinked queue heads when the guest rings the dorbell.
[ ... ]
> Simply not zapping queue heads on doorbell rings fixes the issue, but of
> course
> re-introduces the risk of using cached but stale information.
Improved version attached.
cheers,
Gerd
0001-wip-ehci-don-t-flush-cache-on-dorbell-rings.patch
Description: Text document