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[Qemu-devel] [Bug 1756927] Re: ARMv7 LPAE: IFSR doesn't have the LPAE bi
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From: |
Peter Maydell |
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Subject: |
[Qemu-devel] [Bug 1756927] Re: ARMv7 LPAE: IFSR doesn't have the LPAE bit in case of BKPT |
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Date: |
Tue, 20 Mar 2018 14:04:19 -0000 |
** Tags added: arm
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https://bugs.launchpad.net/bugs/1756927
Title:
ARMv7 LPAE: IFSR doesn't have the LPAE bit in case of BKPT
Status in QEMU:
In Progress
Bug description:
When a user application triggers a 'bkpt' instruction while LPAE is
used, the bit [9] of IFSR is not correctly set during the prefetch
abort exception.
You'll find attached a minimal example to reproduce the issue (just run 'make
all').
The output I get is:
supervisor
user
prefetch
short-descriptor
The last entry should read 'long-descriptor'.
Qemu revision: 48ae1f60d8c9a770e6da64407984d84e25253c69
Ubuntu verison: 16.04 LTS
Cross Compiler: gcc linaro 6.3.1-2017.02-x86_64_arm-eabi
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