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e5143e30fb
There are now only two uses of the global exit_request left. The first ensures we exit the run_loop when we first start to process pending work and in the kick handler. This is just as easily done by setting the first_cpu->exit_request flag. The second use is in the round robin kick routine. The global exit_request ensured every vCPU would set its local exit_request and cause a full exit of the loop. Now the iothread isn't being held while running we can just rely on the kick handler to push us out as intended. We lightly re-factor the main vCPU thread to ensure cpu->exit_requests cause us to exit the main loop and process any IO requests that might come along. As an cpu->exit_request may legitimately get squashed while processing the EXCP_INTERRUPT exception we also check cpu->queued_work_first to ensure queued work is expedited as soon as possible. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> |
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| .. | ||
| user | ||
| address-spaces.h | ||
| cpu-all.h | ||
| cpu-common.h | ||
| cpu-defs.h | ||
| cpu_ldst.h | ||
| cpu_ldst_template.h | ||
| cpu_ldst_useronly_template.h | ||
| cputlb.h | ||
| exec-all.h | ||
| gdbstub.h | ||
| gen-icount.h | ||
| helper-gen.h | ||
| helper-head.h | ||
| helper-proto.h | ||
| helper-tcg.h | ||
| hwaddr.h | ||
| ioport.h | ||
| log.h | ||
| memattrs.h | ||
| memory-internal.h | ||
| memory.h | ||
| poison.h | ||
| ram_addr.h | ||
| ramlist.h | ||
| semihost.h | ||
| softmmu-semi.h | ||
| tb-context.h | ||
| tb-hash-xx.h | ||
| tb-hash.h | ||