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Re: [Xen-devel] [PATCH 09/12] xen: arm: correctly handle sysreg accesses from userspace

To: Julien Grall <julien.grall@xxxxxxxxxx>
From: Ian Campbell <ian.campbell@xxxxxxxxxx>
Date: Thu, 26 Mar 2015 11:32:56 +0000
Cc: stefano.stabellini@xxxxxxxxxxxxx, tim@xxxxxxx, xen-devel@xxxxxxxxxxxxx
Delivery-date: Thu, 26 Mar 2015 11:33:04 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

On Wed, 2015-03-25 at 19:22 +0000, Julien Grall wrote:
> Do you have a paragraph on the spec which clearly explain the
> behavior?

Not clearly enough :-(

I think to be on the safe side I'm going to make most of these
occurrences in this series inject a trap to EL1, unless I can find a
non-ambiguous statement for a given register.

Ian.

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References:
- [Xen-devel] [PATCH v3 0/12] xen: arm: reenable support for 32-bit userspace running in 64-bit guest.
  - From: Ian Campbell
- [Xen-devel] [PATCH 09/12] xen: arm: correctly handle sysreg accesses from userspace
  - From: Ian Campbell
- Re: [Xen-devel] [PATCH 09/12] xen: arm: correctly handle sysreg accesses from userspace
  - From: Julien Grall

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