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Re: [Xen-devel] [PATCH RFC for-4.13 03/10] xen/arm: traps: Rework entry/exit from the guest path



Hi Stefano,

On 02/10/2019 23:26, Stefano Stabellini wrote:
On Wed, 2 Oct 2019, Julien Grall wrote:
That was my reflection on whether it would be a good idea or a bad idea
to have a SERROR check on the fiq hypervisor entries. Not necessarely in
this patch. Probably not in this patch.

If you receive a FIQ exception on Arm64, then you are already doomed because the hypervisor will crash (see do_bad_mode()). So receiving the SError is going to be your last concern here.

Cheers,

--
Julien Grall

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