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Re: [Xen-devel] Re: issues with movnti emulation
| To: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] Re: issues with movnti emulation |
| From: | Gianluca Guida <gianluca.guida@xxxxxxxxxxxxx> |
| Date: | Tue, 25 Nov 2008 14:01:28 +0000 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Tue, 25 Nov 2008 06:05:08 -0800 |
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Keir Fraser wrote: I think the issue is that I did a bad backport to 3.3. The 'case 0xc3' should be under twobyte_special_insn rather than twobyte_insn, right? The two separate paths got merged into one in xen-unstable. This seems actually to be the case. The actual move from src.val to dst.val never happened with the current patch, and this made movnti to write in memory the original dst.val value, leading to memory corruption. By moving the switch case into twobyte_insn the problem goes away. Gianluca _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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