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| author | Richard Henderson <richard.henderson@linaro.org> | 2018-03-19 11:15:45 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-03-26 14:37:14 +0200 |
| commit | 87f963be66a32453e001d1052b000f1653605caa (patch) | |
| tree | fbf9e91be60a6e3c53f99f20509dab2906eacd5e /chardev/char-socket.c | |
| parent | 8e029fd64ea09cea4cd5cfd7c4c04714571cbae6 (diff) | |
| download | focaccia-qemu-87f963be66a32453e001d1052b000f1653605caa.tar.gz focaccia-qemu-87f963be66a32453e001d1052b000f1653605caa.zip | |
tcg: Really fix cpu_io_recompile
We have confused the number of instructions that have been executed in the TB with the number of instructions needed to repeat the I/O instruction. We have used cpu_restore_state_from_tb, which means that the guest pc is pointing to the I/O instruction. The only time the answer to the later question is not 1 is when MIPS or SH4 need to re-execute the branch for the delay slot as well. We must rely on cpu->cflags_next_tb to generate the next TB, as otherwise we have a race condition with other guest cpus within the TB cache. Fixes: 0790f86861079b1932679d0f011e431aaf4ee9e2 Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180319031545.29359-1-richard.henderson@linaro.org> Tested-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'chardev/char-socket.c')
0 files changed, 0 insertions, 0 deletions