diff options
Diffstat (limited to 'gitlab/issues/target_arm/host_missing/accel_TCG/2585.toml')
| -rw-r--r-- | gitlab/issues/target_arm/host_missing/accel_TCG/2585.toml | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gitlab/issues/target_arm/host_missing/accel_TCG/2585.toml b/gitlab/issues/target_arm/host_missing/accel_TCG/2585.toml new file mode 100644 index 00000000..42397435 --- /dev/null +++ b/gitlab/issues/target_arm/host_missing/accel_TCG/2585.toml @@ -0,0 +1,19 @@ +id = 2585 +title = "qemu-system-arm highmem support broken with TCG" +state = "closed" +created_at = "2024-09-23T06:17:54.581Z" +closed_at = "2024-11-01T15:55:23.465Z" +labels = ["accel: TCG", "target: arm", "workflow::Patch available"] +url = "https://gitlab.com/qemu-project/qemu/-/issues/2585" +host-os = "Debian 12" +host-arch = "arm64" +qemu-version = "7.2 through 9.1" +guest-os = "Debian 12" +guest-arch = "arm" +description = "n/a" +reproduce = "n/a" +additional = """I initially bisected this to commit 39a1fd25287f ("target/arm: Fix handling of LPAE block descriptors"), which introduced an identical bug by masking the wrong address bits due to a type mismatch, but this was in turn fixed by commit c2360eaa0262 ("target/arm: Fix qemu-system-arm handling of LPAE block descriptors for highmem"). The bug resurfaced between qemu-7.1.0 and qemu-7.2.0 after commit f3639a64f602 ("target/arm: Use softmmu tlbs for page table walking"), but may be caused by the preceding 4a35855682ce ("target/arm: Plumb debug into S1Translate") which fails to boot for an unrelated reason. + +I reproduced this on qemu-7.2 as shipped by Debian as well as on qemu-9.1 (built locally). + +Part of this problem appeared to be hidden by the 'highmem=on' argument not having the intended effect during parts of the bisection, which I worked around by overriding the 'pa_bits' variable in machvirt_init().""" |