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${ noResults }
qemu/accel
mttcg asserts that an execution ending with EXCP_HALTED must have
cpu->halted. However between the event or instruction that sets
cpu->halted and requests exit and the assertion here, an
asynchronous event could clear cpu->halted.
This leads to crashes running AIX on ppc/pseries because it uses
H_CEDE/H_PROD hcalls, where H_CEDE sets self->halted = 1 and
H_PROD sets other cpu->halted = 0 and kicks it.
H_PROD could be turned into an interrupt to wake, but several other
places in ppc, sparc, and semihosting follow what looks like a similar
pattern setting halted = 0 directly. So remove this assertion.
Reported-by: Ivan Warren <ivan@vmfacility.fr>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Message-Id: <20230829010658.8252-1-npiggin@gmail.com>
[rth: Keep the case label and adjust the comment.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
(cherry picked from commit
|
3 years ago | |
|---|---|---|
| .. | ||
| hvf | Fix 'writeable' typos | 4 years ago |
| kvm | kvm: Introduce kvm_arch_get_default_type hook | 3 years ago |
| qtest | accel/qtest: Support qtest accelerator for Windows | 4 years ago |
| stubs | accel/kvm: move kvm_update_guest_debug to inline stub | 4 years ago |
| tcg | accel/tcg: mttcg remove false-negative halted assertion | 3 years ago |
| xen | sysemu: Let VMChangeStateHandler take boolean 'running' argument | 5 years ago |
| Kconfig | Add NVMM accelerator: configure and build logic | 5 years ago |
| accel-common.c | gdbstub: move sstep flags probing into AccelClass | 4 years ago |
| accel-softmmu.c | accel: abort if we fail to load the accelerator plugin | 4 years ago |
| accel-softmmu.h | accel: replace struct CpusAccel with AccelOpsClass | 6 years ago |
| accel-user.c | accel: extend AccelState and AccelClass to user-mode | 6 years ago |
| dummy-cpus.c | accel/qtest: Support qtest accelerator for Windows | 4 years ago |
| meson.build | accel/qtest: Support qtest accelerator for Windows | 4 years ago |