From: Jakub Jermar <jakub.jermar@kernkonzept.com>
To: Aleksandar Markovic <amarkovic@wavecomp.com>,
Aleksandar Markovic <aleksandar.markovic@rt-rk.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Cc: "peter.maydell@linaro.org" <peter.maydell@linaro.org>
Subject: Re: [Qemu-devel] [PULL 00/10] MIPS queue for May 19th, 2019
Date: Sun, 19 May 2019 16:46:18 +0200 [thread overview]
Message-ID: <034a6cb7-7fb6-e59c-007b-4f8610db37a8@kernkonzept.com> (raw)
In-Reply-To: <BN6PR2201MB125130243EB8B0ED9AE36848C6050@BN6PR2201MB1251.namprd22.prod.outlook.com>
On 5/19/19 2:00 PM, Aleksandar Markovic wrote:
>>>
>>> * A fix for HelenOS boot hang (related to the flag PAGE_EXEC)
>>
>> This was rather a problem with failing non-executable page tests in
>> L4Re, not HelenOS. Even though I tested HelenOS for regressions.
>
> OK, Jakub, what would be your suggestion for a high-level description
> of this message for end users (it is definitely a change that affects end
> user)? Something like" Improved PAGE_EXEC flag handling"?
It makes sure that referenced pages are not automatically marked
executable by QEMU (despite the XI bit).
As a user-visible change, this might unbreak some tests that attempt to
execute data. Note that this fix does not affect pages that are not
referenced prior to being executed - those have worked fine.
Otherwise for normal code that does not attempt to execute data, things
should not change at all.
Cheers,
Jakub
> Thanks,
> Aleksandar
>
--
Kernkonzept GmbH at Dresden, Germany, HRB 31129, CEO Dr.-Ing. Michael
Hohmuth
next prev parent reply other threads:[~2019-05-19 14:48 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-19 10:52 [Qemu-devel] [PULL 00/10] MIPS queue for May 19th, 2019 Aleksandar Markovic
2019-05-19 10:52 ` [Qemu-devel] [PULL 01/10] target/mips: Make the results of DIV_<U|S>.<B|H|W|D> the same as on hardware Aleksandar Markovic
2019-05-19 10:52 ` [Qemu-devel] [PULL 02/10] target/mips: Make the results of MOD_<U|S>.<B|H|W|D> " Aleksandar Markovic
2019-05-19 10:52 ` [Qemu-devel] [PULL 03/10] target/mips: Fix MSA instructions LD.<B|H|W|D> on big endian host Aleksandar Markovic
2019-05-19 10:52 ` [Qemu-devel] [PULL 04/10] target/mips: Fix MSA instructions ST.<B|H|W|D> " Aleksandar Markovic
2019-05-19 10:52 ` [Qemu-devel] [PULL 05/10] target/mips: Refactor and fix COPY_S.<B|H|W|D> instructions Aleksandar Markovic
2019-05-19 10:52 ` [Qemu-devel] [PULL 06/10] target/mips: Refactor and fix COPY_U.<B|H|W> instructions Aleksandar Markovic
2019-05-19 10:52 ` [Qemu-devel] [PULL 07/10] target/mips: Refactor and fix INSERT.<B|H|W|D> instructions Aleksandar Markovic
2019-05-19 10:52 ` [Qemu-devel] [PULL 08/10] hw/mips: Use object_initialize() on MIPSCPSState Aleksandar Markovic
2019-05-19 10:52 ` [Qemu-devel] [PULL 09/10] hw/mips: Use object_initialize_child for correct reference counting Aleksandar Markovic
2019-05-19 10:52 ` [Qemu-devel] [PULL 10/10] mips: Decide to map PAGE_EXEC in map_address Aleksandar Markovic
2019-05-19 11:33 ` [Qemu-devel] [PULL 00/10] MIPS queue for May 19th, 2019 Jakub Jermar
2019-05-19 12:00 ` Aleksandar Markovic
2019-05-19 14:46 ` Jakub Jermar [this message]
2019-05-19 15:10 ` Philippe Mathieu-Daudé
2019-05-19 15:16 ` Aleksandar Markovic
2019-05-19 16:03 ` Jakub Jermar
2019-05-20 12:11 ` Peter Maydell
2019-05-20 12:35 ` Aleksandar Markovic
2019-05-20 17:29 ` Philippe Mathieu-Daudé
2019-05-20 19:09 ` Aleksandar Markovic
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