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Re: [Xen-devel] [PATCH] vmx: correct EIP value of task-state segment
| To: | Kouya Shimura <kouya@xxxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH] vmx: correct EIP value of task-state segment |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Fri, 31 Jul 2009 08:36:42 +0100 |
| Cc: | |
| Delivery-date: | Fri, 31 Jul 2009 00:37:10 -0700 |
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| Thread-index: | AcoRfPtLYP6eWChcTY2N43LVlr/vuAANKpjG |
| Thread-topic: | [Xen-devel] [PATCH] vmx: correct EIP value of task-state segment |
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On 31/07/2009 02:19, "Kouya Shimura" <kouya@xxxxxxxxxxxxxx> wrote: > Major OSes(Linux, windows, ...) don't seem to use task switching. > So this bug is missed. > > Signed-off-by: Kouya Shimura <kouya@xxxxxxxxxxxxxx> What about SVM, and what if the reason for the task switch is a hardware interrupt or exception (the only case we care about for Windows at least)? The reference manuals are sketchy enough you may need to test out some task switches on SVM and VMX hardware to make sure you make patches that really do the right thing. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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