On Thu, 15 Apr 2021 15:03:01 +0200 Ilya Leoshkevich <i...@linux.ibm.com> wrote:
> If arch-specific code generates a translation block of size 0, > tb_gen_code() may generate a spurious exception. > > Fix s390x (patch 1), ARM (patch 2) and xtensa (patch 3) and add an > assertion in order to catch such situations earlier (patch 4). > > v1: https://lists.nongnu.org/archive/html/qemu-devel/2021-04/msg02037.html > v1 -> v2: Fix target/s390x instead of trying to tolerate tb->size == 0 > in tb_gen_code(). > > v2: https://lists.nongnu.org/archive/html/qemu-devel/2021-04/msg02101.html > v2 -> v3: Split the common code change into a separate patch, add the > ARM patch in order to fix > https://gitlab.com/cohuck/qemu/-/jobs/1178409450 > > v3: https://lists.nongnu.org/archive/html/qemu-devel/2021-04/msg02332.html > v3 -> v4: Add the xtensa patch in order to fix > https://gitlab.com/cohuck/qemu/-/jobs/1178409540 > > Ilya Leoshkevich (4): > target/s390x: Fix translation exception on illegal instruction > target/arm: Make sure that commpage's tb->size != 0 > target/xtensa: Make sure that tb->size != 0 > accel/tcg: Assert that tb->size != 0 after translation > > accel/tcg/translate-all.c | 1 + > target/arm/translate.c | 1 + > target/s390x/translate.c | 16 +++++++++++----- > target/xtensa/translate.c | 3 +++ > 4 files changed, 16 insertions(+), 5 deletions(-) > FWIW, this now has passed CI for me. If all is good, who will merge it? I can merge through the s390x tree, if I get acks on the patches for the other architectures, or I can give my ack on the s390x patch, if somebody else is going to take it.