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RE: [Xen-ia64-devel] [PATCH] Reload KRs when domain switch

To: "Tian, Kevin" <kevin.tian@xxxxxxxxx>, <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-ia64-devel] [PATCH] Reload KRs when domain switch
From: "Magenheimer, Dan (HP Labs Fort Collins)" <dan.magenheimer@xxxxxx>
Date: Mon, 31 Oct 2005 20:13:25 -0800
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Thread-topic: [Xen-ia64-devel] [PATCH] Reload KRs when domain switch
Committed, but I moved things around a bit. (load_region_regs()
didn't seem like a very good place to put loads of kernel regs.)

> -----Original Message-----
> From: xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx 
> [mailto:xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf 
> Of Tian, Kevin
> Sent: Monday, October 31, 2005 6:55 PM
> To: xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-ia64-devel] [PATCH] Reload KRs when domain switch
> Hi, Dan,
> This is next block which made dom0 in nested dtlb miss forever. The
> reason is that KR is not reloaded after domain switch, and 
> thus invalid
> KRs are used. Several TLB miss related handlers in guest depend on KR7
> to walk current page table. Then invalid KR value made everything
> messed.
> Signed-off-by Kevin Tian <Kevin.tian@xxxxxxxxx>
> Thanks,
> Kevin

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