From: Ian Campbell <ian.campbell@citrix.com>
To: Julien Grall <julien.grall@linaro.org>
Cc: stefano.stabellini@eu.citrix.com, tim@xen.org, xen-devel@lists.xen.org
Subject: Re: [PATCH 09/12] xen: arm: correctly handle sysreg accesses from userspace
Date: Thu, 26 Mar 2015 11:32:56 +0000 [thread overview]
Message-ID: <1427369576.13935.21.camel@citrix.com> (raw)
In-Reply-To: <55130AEE.70406@linaro.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.
next prev parent reply other threads:[~2015-03-26 11:32 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-25 14:22 [PATCH v3 0/12] xen: arm: reenable support for 32-bit userspace running in 64-bit guest Ian Campbell
2015-03-25 14:22 ` [PATCH 01/12] xen: arm: Correct PMXEV cp register definitions Ian Campbell
2015-03-25 14:22 ` [PATCH 02/12] xen: arm: handle accesses to CNTP_CVAL_EL0 Ian Campbell
2015-03-25 18:23 ` Julien Grall
2015-03-25 18:32 ` Julien Grall
2015-03-26 10:59 ` Ian Campbell
2015-03-26 16:07 ` Ian Campbell
2015-03-25 14:22 ` [PATCH 03/12] xen: arm: Use ARMv8 names for CNTHCTL_EL2 bits Ian Campbell
2015-03-25 18:25 ` Julien Grall
2015-03-25 14:22 ` [PATCH 04/12] xen: arm: Factor out psr_mode_is_user Ian Campbell
2015-03-25 14:22 ` [PATCH 05/12] xen: arm: Handle 32-bit EL0 on 64-bit EL1 when advancing PC after trap Ian Campbell
2015-03-25 14:22 ` [PATCH 06/12] xen: arm: correctly handle vtimer traps from userspace Ian Campbell
2015-03-25 18:41 ` Julien Grall
2015-03-26 11:09 ` Ian Campbell
2015-03-25 14:22 ` [PATCH 07/12] xen: arm: Handle CP15 register " Ian Campbell
2015-03-25 18:59 ` Julien Grall
2015-03-26 11:19 ` Ian Campbell
2015-03-25 14:22 ` [PATCH 08/12] xen: arm: Handle CP14 32-bit register accesses " Ian Campbell
2015-03-25 19:05 ` Julien Grall
2015-03-25 14:22 ` [PATCH 09/12] xen: arm: correctly handle sysreg " Ian Campbell
2015-03-25 19:22 ` Julien Grall
2015-03-26 11:32 ` Ian Campbell [this message]
2015-03-25 14:22 ` [PATCH 10/12] xen: arm: handle remaining traps " Ian Campbell
2015-03-25 19:29 ` Julien Grall
2015-03-25 14:22 ` [PATCH 11/12] xen: arm: Allow traps from 32 bit userspace on 64 bit hypervisors again Ian Campbell
2015-03-25 14:22 ` [PATCH 12/12] xen: arm: Dump guest state when invalid trap state is detected Ian Campbell
2015-03-25 19:35 ` Julien Grall
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