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Re: [Qemu-block] [PATCH] ahci: Force ICC bits in PxCMD to zero
From: |
Kevin Wolf |
Subject: |
Re: [Qemu-block] [PATCH] ahci: Force ICC bits in PxCMD to zero |
Date: |
Fri, 17 Jul 2015 13:33:58 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
Am 16.07.2015 um 21:54 hat Stefan Fritsch geschrieben:
> The AHCI spec requires that the HBA sets the ICC bits to zero after the
> ICC change is done. Since we don't do any ICC change, force the bits to
> zero all the time.
>
> This fixes delays with some OSs (e.g. OpenBSD) waiting for the ICC bits
> to change to 0.
>
> Signed-off-by: Stefan Fritsch <address@hidden>
Reviewed-by: Kevin Wolf <address@hidden>