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xen-devel
Re: [Xen-devel] [PATCH][RFC]Move PCI Configuration Spaces from Dom0 toXe
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To: |
"Jan Beulich" <jbeulich@xxxxxxxxxx> |
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Subject: |
Re: [Xen-devel] [PATCH][RFC]Move PCI Configuration Spaces from Dom0 toXen |
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From: |
Espen Skoglund <espen.skoglund@xxxxxxxxxxxxx> |
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Date: |
Fri, 11 Apr 2008 15:35:58 +0100 |
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Cc: |
Kevin Tian <kevin.tian@xxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Haitao Shan <haitao.shan@xxxxxxxxx>, Yunhong Jiang <yunhong.jiang@xxxxxxxxx>, Allen M Kay <allen.m.kay@xxxxxxxxx>, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, Weidong Han <weidong.han@xxxxxxxxx> |
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Fri, 11 Apr 2008 07:37:07 -0700 |
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Actually, byte or word accesses in the cf8-cfb range should be passed
through as is. Only dword accesses to cf8 should be latched into the
config-address register. The original patch is right in the way it
handles sub-dword accesses.
eSk
[Jan Beulich]
> Also I find it a little odd that you allow access to ports cf9...cfb
> rather than properly handling namely byte accesses to cf9. Likewise
> it doesn't consider the (albeit unlikely) case of multi-byte
> accesses to ports crossing the cf8/cfc boundary.
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