diff options
Diffstat (limited to 'gitlab/issues_text/target_missing/host_missing/accel_missing/2154')
| -rw-r--r-- | gitlab/issues_text/target_missing/host_missing/accel_missing/2154 | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gitlab/issues_text/target_missing/host_missing/accel_missing/2154 b/gitlab/issues_text/target_missing/host_missing/accel_missing/2154 new file mode 100644 index 000000000..5f5952955 --- /dev/null +++ b/gitlab/issues_text/target_missing/host_missing/accel_missing/2154 @@ -0,0 +1,7 @@ +ID_AA64MMFR2_EL1 is all zeros +Description of problem: +When the `ID_AA64MMFR2_EL1` register is read via `mrs x[n], ID_AA64MMFR2_EL1`, it is read as all zeros. This is at the very least not correct for `ID_AA64MMFR2_EL1.ST`, which describes support for small translation tables (FEAT_TTST). +Steps to reproduce: +1. Run `mrs x[n], ID_AA64MMFR2_EL1` within qemu-system-aarch64 +Additional information: +FEAT_TTST is a relatively new aarch64 feature that appears to have caused many problems basically everywhere. However, [qemu has reportedly implemented it](https://www.qemu.org/2021/04/30/qemu-6-0-0/). |