| Message ID | 20230328225806.2278728-1-richard.henderson@linaro.org |
|---|---|
| State | New |
| Headers | show |
On Tue, 28 Mar 2023 at 23:58, Richard Henderson <richard.henderson@linaro.org> wrote: > > The following changes since commit d37158bb2425e7ebffb167d611be01f1e9e6c86f: > > Update version for v8.0.0-rc2 release (2023-03-28 20:43:21 +0100) > > are available in the Git repository at: > > https://gitlab.com/rth7680/qemu.git tags/pull-tcg-20230328 > > for you to fetch changes up to 87e303de70f93bf700f58412fb9b2c3ec918c4b5: > > softmmu: Restore use of CPU watchpoint for all accelerators (2023-03-28 15:24:06 -0700) > > ---------------------------------------------------------------- > Use a local version of GTree [#285] > Fix page_set_flags vs the last page of the address space [#1528] > Re-enable gdbstub breakpoints under KVM > Applied, thanks. Please update the changelog at https://wiki.qemu.org/ChangeLog/8.0 for any user-visible changes. -- PMM
On Tue, 28 Mar 2023 at 22:59, Richard Henderson <richard.henderson@linaro.org> wrote: > > The following changes since commit d37158bb2425e7ebffb167d611be01f1e9e6c86f: > > Update version for v8.0.0-rc2 release (2023-03-28 20:43:21 +0100) > > are available in the Git repository at: > > https://gitlab.com/rth7680/qemu.git tags/pull-tcg-20230328 > > for you to fetch changes up to 87e303de70f93bf700f58412fb9b2c3ec918c4b5: > > softmmu: Restore use of CPU watchpoint for all accelerators (2023-03-28 15:24:06 -0700) > > ---------------------------------------------------------------- > Use a local version of GTree [#285] > Fix page_set_flags vs the last page of the address space [#1528] > Re-enable gdbstub breakpoints under KVM > > ---------------------------------------------------------------- > Emilio Cota (2): > util: import GTree as QTree > tcg: use QTree instead of GTree > > Philippe Mathieu-Daudé (3): > softmmu: Restrict cpu_check_watchpoint / address_matches to TCG accel > softmmu/watchpoint: Add missing 'qemu/error-report.h' include > softmmu: Restore use of CPU watchpoint for all accelerators > > Richard Henderson (10): > linux-user: Diagnose misaligned -R size > accel/tcg: Pass last not end to page_set_flags > accel/tcg: Pass last not end to page_reset_target_data > accel/tcg: Pass last not end to PAGE_FOR_EACH_TB > accel/tcg: Pass last not end to page_collection_lock > accel/tcg: Pass last not end to tb_invalidate_phys_page_range__locked > accel/tcg: Pass last not end to tb_invalidate_phys_range > linux-user: Pass last not end to probe_guest_base > include/exec: Change reserved_va semantics to last byte > linux-user/arm: Take more care allocating commpage Thanks for getting these fixes merged. This last one (4f5c67f8df7f26e559509c68c45e652709edd23f) causes a regression for me. On ppc64le, qemu-arm now segfaults. If I revert this one I can run executables without the assert. The segfault looks like this: #0 0x00000001001e44fc in stl_he_p (v=5, ptr=0x240450ffc) at /home/joel/qemu/include/qemu/bswap.h:260 #1 stl_le_p (v=5, ptr=0x240450ffc) at /home/joel/qemu/include/qemu/bswap.h:302 #2 init_guest_commpage () at ../linux-user/elfload.c:460 #3 probe_guest_base (image_name=image_name@entry=0x1003c72e0 <real_exec_path> "/home/joel/hello", guest_loaddr=guest_loaddr@entry=65536, guest_hiaddr=guest_hiaddr@entry=17411743) at ../linux-user/elfload.c:2818 #4 0x00000001001e50d4 in load_elf_image (image_name=0x1003c72e0 <real_exec_path> "/home/joel/hello", image_fd=<optimised out>, info=info@entry=0x7fffffffe7e8, pinterp_name=pinterp_name@entry=0x7fffffffe558, bprm_buf=bprm_buf@entry=0x7fffffffe8d0 "\177ELF\001\001\001") at ../linux-user/elfload.c:3108 #5 0x00000001001e5434 in load_elf_binary (bprm=0x7fffffffe8d0, info=0x7fffffffe7e8) at ../linux-user/elfload.c:3548 #6 0x00000001001e85bc in loader_exec (fdexec=<optimised out>, filename=<optimised out>, argv=<optimised out>, envp=<optimised out>, regs=0x7fffffffe888, infop=0x7fffffffe7e8, bprm=0x7fffffffe8d0) at ../linux-user/linuxload.c:155 #7 0x0000000100046c7c in main (argc=<optimised out>, argv=0x7ffffffff1c8, envp=<optimised out>) at ../linux-user/main.c:892 Cheers, Joel
On 3/30/23 03:37, Joel Stanley wrote: > On Tue, 28 Mar 2023 at 22:59, Richard Henderson > <richard.henderson@linaro.org> wrote: >> >> The following changes since commit d37158bb2425e7ebffb167d611be01f1e9e6c86f: >> >> Update version for v8.0.0-rc2 release (2023-03-28 20:43:21 +0100) >> >> are available in the Git repository at: >> >> https://gitlab.com/rth7680/qemu.git tags/pull-tcg-20230328 >> >> for you to fetch changes up to 87e303de70f93bf700f58412fb9b2c3ec918c4b5: >> >> softmmu: Restore use of CPU watchpoint for all accelerators (2023-03-28 15:24:06 -0700) >> >> ---------------------------------------------------------------- >> Use a local version of GTree [#285] >> Fix page_set_flags vs the last page of the address space [#1528] >> Re-enable gdbstub breakpoints under KVM >> >> ---------------------------------------------------------------- >> Emilio Cota (2): >> util: import GTree as QTree >> tcg: use QTree instead of GTree >> >> Philippe Mathieu-Daudé (3): >> softmmu: Restrict cpu_check_watchpoint / address_matches to TCG accel >> softmmu/watchpoint: Add missing 'qemu/error-report.h' include >> softmmu: Restore use of CPU watchpoint for all accelerators >> >> Richard Henderson (10): >> linux-user: Diagnose misaligned -R size >> accel/tcg: Pass last not end to page_set_flags >> accel/tcg: Pass last not end to page_reset_target_data >> accel/tcg: Pass last not end to PAGE_FOR_EACH_TB >> accel/tcg: Pass last not end to page_collection_lock >> accel/tcg: Pass last not end to tb_invalidate_phys_page_range__locked >> accel/tcg: Pass last not end to tb_invalidate_phys_range >> linux-user: Pass last not end to probe_guest_base >> include/exec: Change reserved_va semantics to last byte >> linux-user/arm: Take more care allocating commpage > > Thanks for getting these fixes merged. > > This last one (4f5c67f8df7f26e559509c68c45e652709edd23f) causes a > regression for me. On ppc64le, qemu-arm now segfaults. If I revert > this one I can run executables without the assert. > > The segfault looks like this: > > #0 0x00000001001e44fc in stl_he_p (v=5, ptr=0x240450ffc) at > /home/joel/qemu/include/qemu/bswap.h:260 > #1 stl_le_p (v=5, ptr=0x240450ffc) at /home/joel/qemu/include/qemu/bswap.h:302 > #2 init_guest_commpage () at ../linux-user/elfload.c:460 > #3 probe_guest_base (image_name=image_name@entry=0x1003c72e0 > <real_exec_path> "/home/joel/hello", > guest_loaddr=guest_loaddr@entry=65536, > guest_hiaddr=guest_hiaddr@entry=17411743) at > ../linux-user/elfload.c:2818 > #4 0x00000001001e50d4 in load_elf_image (image_name=0x1003c72e0 > <real_exec_path> "/home/joel/hello", > image_fd=<optimised out>, info=info@entry=0x7fffffffe7e8, > pinterp_name=pinterp_name@entry=0x7fffffffe558, > bprm_buf=bprm_buf@entry=0x7fffffffe8d0 "\177ELF\001\001\001") at > ../linux-user/elfload.c:3108 > #5 0x00000001001e5434 in load_elf_binary (bprm=0x7fffffffe8d0, > info=0x7fffffffe7e8) at ../linux-user/elfload.c:3548 > #6 0x00000001001e85bc in loader_exec (fdexec=<optimised out>, > filename=<optimised out>, argv=<optimised out>, > envp=<optimised out>, regs=0x7fffffffe888, infop=0x7fffffffe7e8, > bprm=0x7fffffffe8d0) at ../linux-user/linuxload.c:155 > #7 0x0000000100046c7c in main (argc=<optimised out>, > argv=0x7ffffffff1c8, envp=<optimised out>) at ../linux-user/main.c:892 Gah! I've exposed the same sort of overflow conditions within target_mmap and friends. I think the only short-term solution for 8.0 is to revert the last patch. r~
The following changes since commit d37158bb2425e7ebffb167d611be01f1e9e6c86f: Update version for v8.0.0-rc2 release (2023-03-28 20:43:21 +0100) are available in the Git repository at: https://gitlab.com/rth7680/qemu.git tags/pull-tcg-20230328 for you to fetch changes up to 87e303de70f93bf700f58412fb9b2c3ec918c4b5: softmmu: Restore use of CPU watchpoint for all accelerators (2023-03-28 15:24:06 -0700) ---------------------------------------------------------------- Use a local version of GTree [#285] Fix page_set_flags vs the last page of the address space [#1528] Re-enable gdbstub breakpoints under KVM ---------------------------------------------------------------- Emilio Cota (2): util: import GTree as QTree tcg: use QTree instead of GTree Philippe Mathieu-Daudé (3): softmmu: Restrict cpu_check_watchpoint / address_matches to TCG accel softmmu/watchpoint: Add missing 'qemu/error-report.h' include softmmu: Restore use of CPU watchpoint for all accelerators Richard Henderson (10): linux-user: Diagnose misaligned -R size accel/tcg: Pass last not end to page_set_flags accel/tcg: Pass last not end to page_reset_target_data accel/tcg: Pass last not end to PAGE_FOR_EACH_TB accel/tcg: Pass last not end to page_collection_lock accel/tcg: Pass last not end to tb_invalidate_phys_page_range__locked accel/tcg: Pass last not end to tb_invalidate_phys_range linux-user: Pass last not end to probe_guest_base include/exec: Change reserved_va semantics to last byte linux-user/arm: Take more care allocating commpage configure | 15 + meson.build | 4 + include/exec/cpu-all.h | 15 +- include/exec/exec-all.h | 2 +- include/hw/core/cpu.h | 39 +- include/hw/core/tcg-cpu-ops.h | 43 ++ include/qemu/qtree.h | 201 ++++++ linux-user/arm/target_cpu.h | 2 +- linux-user/user-internals.h | 12 +- accel/tcg/tb-maint.c | 112 ++-- accel/tcg/translate-all.c | 2 +- accel/tcg/user-exec.c | 25 +- bsd-user/main.c | 10 +- bsd-user/mmap.c | 10 +- linux-user/elfload.c | 72 ++- linux-user/flatload.c | 2 +- linux-user/main.c | 31 +- linux-user/mmap.c | 22 +- linux-user/syscall.c | 4 +- softmmu/physmem.c | 2 +- softmmu/watchpoint.c | 5 + target/arm/tcg/mte_helper.c | 1 + target/arm/tcg/sve_helper.c | 1 + target/s390x/tcg/mem_helper.c | 1 + tcg/region.c | 19 +- tests/bench/qtree-bench.c | 286 +++++++++ tests/unit/test-qtree.c | 333 ++++++++++ util/qtree.c | 1390 +++++++++++++++++++++++++++++++++++++++++ softmmu/meson.build | 2 +- tests/bench/meson.build | 4 + tests/unit/meson.build | 1 + util/meson.build | 1 + 32 files changed, 2474 insertions(+), 195 deletions(-) create mode 100644 include/qemu/qtree.h create mode 100644 tests/bench/qtree-bench.c create mode 100644 tests/unit/test-qtree.c create mode 100644 util/qtree.c