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Re: [Qemu-devel] [PATCH v2 1/4] memory: Avoid to create tiny RAM regions
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [PATCH v2 1/4] memory: Avoid to create tiny RAM regions, handled as subpages |
Date: |
Thu, 5 Apr 2018 14:42:34 +0100 |
On 5 April 2018 at 14:34, KONRAD Frederic <address@hidden> wrote:
> On 04/05/2018 03:31 PM, Philippe Mathieu-Daudé wrote:
>> Luckily in my case I can workaround with a 4K SRAM, but it took me hours
>> to track this down until Paolo helped me.
> I seems to remember having the same pain with the mmio execution
> stuff. It triggered a bad ram pointer as far a I remember.
I think this would once have ended up in report_bad_exec()
which prints a more-or-less helpful message. However for CPUs
which now implement the unassigned-access or transaction-failed hooks
you'll get a guest exception instead now, I guess.
Incidentally we really ought to fix the interaction of
mmio-exec and migration, rather than just leaving it as it
is (disabling migration for xilinx_qspips device).
thanks
-- PMM
- [Qemu-devel] [RFC PATCH v2 0/4] memory: fix access_with_adjusted_size() and misc, Philippe Mathieu-Daudé, 2018/04/04
- [Qemu-devel] [PATCH v2 1/4] memory: Avoid to create tiny RAM regions, handled as subpages, Philippe Mathieu-Daudé, 2018/04/04
- Re: [Qemu-devel] [PATCH v2 1/4] memory: Avoid to create tiny RAM regions, handled as subpages, Peter Maydell, 2018/04/05
- Re: [Qemu-devel] [PATCH v2 1/4] memory: Avoid to create tiny RAM regions, handled as subpages, Philippe Mathieu-Daudé, 2018/04/05
- Re: [Qemu-devel] [PATCH v2 1/4] memory: Avoid to create tiny RAM regions, handled as subpages, Peter Maydell, 2018/04/05
- Re: [Qemu-devel] [PATCH v2 1/4] memory: Avoid to create tiny RAM regions, handled as subpages, Philippe Mathieu-Daudé, 2018/04/05
- Re: [Qemu-devel] [PATCH v2 1/4] memory: Avoid to create tiny RAM regions, handled as subpages, KONRAD Frederic, 2018/04/05
- Re: [Qemu-devel] [PATCH v2 1/4] memory: Avoid to create tiny RAM regions, handled as subpages,
Peter Maydell <=
[Qemu-devel] [NOTFORMERGE PATCH v2 2/4] memory: Fix access_with_adjusted_size() when size < access_size_min, Philippe Mathieu-Daudé, 2018/04/04
[Qemu-devel] [PATCH v2 3/4] memory: Fix memory_region 'priority' property sign, Philippe Mathieu-Daudé, 2018/04/04
[Qemu-devel] [RFC PATCH v2 4/4] memory: Add memory_region_set_priority(), Philippe Mathieu-Daudé, 2018/04/04
Re: [Qemu-devel] [RFC PATCH v2 0/4] memory: fix access_with_adjusted_size() and misc, no-reply, 2018/04/04