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xen-devel
Re: [Xen-devel] [PATCH][SVM] fix guest hang
Good catch. Actually I think it is better to clear interrupt_shadow in
update_guest_eip. I did this, plus a few other cleanups as c/s 16398 in the
unstable staging tree. Please take a look and make sure I didn't screw up.
Thanks,
Keir
On 20/11/07 12:56, "Christoph Egger" <Christoph.Egger@xxxxxxx> wrote:
>
> Hi Keir!
>
> Attached patch fixes a boot hang we have seen with SLES 9.3 and FreeBSD HVM
> guests. Both are 32bit guests and run with a 64bit hypervisor.
>
> The patch does the following:
> 1) Cache current vcpu in svm_vmexit_do_hlt
> 2) Check for interrupt shadow in svm_vmexit_do_hlt and handle it like a
> pending interrupt
>
> The boot hang happens when the hlt is intercepted and the interrupt shadow
> field in vmcb is set, then the guest waits forever for the next timer
> interrupt.
>
> Change 1) is a cleanup, 2) is the fix
>
> Signed-off-by: Christoph Egger <Christoph.Egger@xxxxxxx>
>
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