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Re: [Qemu-arm] [Qemu-devel] [PATCH for-2.12] hw/intc/arm_gicv3: Fix secu

From: Peter Maydell
Subject: Re: [Qemu-arm] [Qemu-devel] [PATCH for-2.12] hw/intc/arm_gicv3: Fix secure-GIC NS ICC_PMR and ICC_RPR accesses
Date: Fri, 23 Mar 2018 09:45:18 +0000

On 22 March 2018 at 20:42, Philippe Mathieu-Daudé <address@hidden> wrote:
> Hi Peter,
> On 03/22/2018 03:29 PM, Peter Maydell wrote:
>> On 22 March 2018 at 14:23, Andrew Jones <address@hidden> wrote:
>>> On Thu, Mar 15, 2018 at 01:34:41PM +0000, Peter Maydell wrote:
>>>> If the GIC has the security extension support enabled, then a
>>>> non-secure access to ICC_PMR must take account of the non-secure
>>>> view of interrupt priorities, where real priorities 0..0x7f
>>>> are secure-only and not visible to the non-secure guest, and
>>>> priorities 0x80..0xff are shown to the guest as if they were
>>>> 0x00..0xff. We had the logic here wrong:
>>> 0x00..0x7f
>> I think 0x00..0xff is correct.
> I guess Andrew only suggested to correct the hex prefix in your comment:
> - ... where real priorities 0..0x7f
> + ... where real priorities 0x00..0x7f

Oh, right. Yes, can do that. I was confused by the suggested correction
being directly under "0x00..0xff" in my commit message.

-- PMM

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