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[Qemu-devel] [Bug 1572329] Re: ARM bootloader does not set r0 to 0
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From: |
T. Huth |
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Subject: |
[Qemu-devel] [Bug 1572329] Re: ARM bootloader does not set r0 to 0 |
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Date: |
Thu, 23 Jun 2016 19:14:30 -0000 |
Should be part of QEMU 2.6 ==> Fix released
** Changed in: qemu
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1572329
Title:
ARM bootloader does not set r0 to 0
Status in QEMU:
Fix Released
Bug description:
The link register is not properly set up in the ARM bootloader code,
leading to the instruction which sets r0 to 0x00000000 to be skipped.
As a consequence, r0 may hold the value leaked from the board setup
code.
For instance, if using arm_write_secure_board_setup_dummy_smc, r0
holds 0x00000031.
Attached is a patch to fix the issue.
Please include Sylvain Garrigues <address@hidden> in the
commit log.
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