diff options
Diffstat (limited to 'gitlab/issues/target_arm/host_missing/accel_TCG/1062.toml')
| -rw-r--r-- | gitlab/issues/target_arm/host_missing/accel_TCG/1062.toml | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/gitlab/issues/target_arm/host_missing/accel_TCG/1062.toml b/gitlab/issues/target_arm/host_missing/accel_TCG/1062.toml new file mode 100644 index 00000000..e0a5a35f --- /dev/null +++ b/gitlab/issues/target_arm/host_missing/accel_TCG/1062.toml @@ -0,0 +1,26 @@ +id = 1062 +title = "AArch64: SCR_EL3.RW behaves incorrectly for CPUs with no AArch32" +state = "closed" +created_at = "2022-06-05T04:51:08.258Z" +closed_at = "2022-06-10T23:03:46.969Z" +labels = ["Closed::Fixed", "accel: TCG", "target: arm"] +url = "https://gitlab.com/qemu-project/qemu/-/issues/1062" +host-os = "Any" +host-arch = "Any" +qemu-version = "QEMU emulator version 7.0.0 (v6.2.0-3146-g7e0e865ad5-dirty)" +guest-os = "n/a" +guest-arch = "ARM" +description = """In the ARM DDI 0487G.a, D13-3572, the SCR_EL3.RW bit is defined as RAO/WI if both EL2 and EL1 don't support Aarch32. However, the function `scr_write` in `target/arm/helper.c` does not reflect this behavior, even though it checks for Aarch32 EL1 support. + +This would break this EL3 code, which should run on cpu reset to attempt to return to EL1: +```asm +mov x1, #((1<<0)|(1<<2)|(1<<6)|(1<<7)|(1<<8)|(1<<9)) ; EL1h, DAIF masked +mov SPSR_EL3, x1 +adr x1, 1f +msr ELR_EL3, x1 +eret +1: +; something something +```""" +reproduce = "n/a" +additional = """""" |