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Re: [Qemu-devel] [SeaBIOS] [PATCH] virtio: Clear interrupt status regist
From: |
Kevin O'Connor |
Subject: |
Re: [Qemu-devel] [SeaBIOS] [PATCH] virtio: Clear interrupt status register in virtio-blk |
Date: |
Thu, 8 Jul 2010 08:44:32 -0400 |
User-agent: |
Mutt/1.5.20 (2009-12-10) |
On Wed, Jul 07, 2010 at 01:34:22PM +0100, Stefan Hajnoczi wrote:
> The VRING_AVAIL_F_NO_INTERRUPT flag is a hint that interrupts should be
> suppressed. It does not guarantee that interrupts will not be raised.
> Therefore, make sure to clear the interrupt after each virtio-blk read.
> This avoids a stuck interrupt interfering with the OS loaded later in
> the boot process.
>
> Signed-off-by: Stefan Hajnoczi <address@hidden>
Thanks. Commit 4e0daae5.
-Kevin