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Diffstat (limited to 'results/scraper/launchpad-without-comments/1723984')
| -rw-r--r-- | results/scraper/launchpad-without-comments/1723984 | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/results/scraper/launchpad-without-comments/1723984 b/results/scraper/launchpad-without-comments/1723984 new file mode 100644 index 000000000..96ac2192a --- /dev/null +++ b/results/scraper/launchpad-without-comments/1723984 @@ -0,0 +1,17 @@ +ID_MMFR0 has an invalid value on aarch64 cpu (A57, A53) + +The ID_MMFR0 register, accessed from aarch64 state as an invalid value: +- ARM ARM v8 documentation (D7.2 General system control registers) described bits AuxReg[23:20] to be + "In ARMv8-A the only permitted value is 0010" +- Cortex A53 and Cortex A57 TRM describe the value to be 0x10201105, so AuxReg[23:20] is 0010 too +- in QEMU target/arm/cpu64.c, the relevant value is + cpu->id_mmfr0 = 0x10101105; + +The 1 should be changed to 2. + +Spotted & Tested on the following qemu revision: + +commit 48ae1f60d8c9a770e6da64407984d84e25253c69 +Merge: 78b62d3 b867eaa +Author: Peter Maydell <email address hidden> +Date: Mon Oct 16 14:28:13 2017 +0100 \ No newline at end of file |