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Alex Bennée 4d824886c8 accel/tcg/cputlb: avoid recursive BQL (fixes #1706296) 
The mmio path (see exec.c:prepare_mmio_access) already protects itself
against recursive locking and it makes sense to do the same for
io_readx/writex. Otherwise any helper running in the BQL context will
assert when it attempts to write to device memory as in the case of
the bug report.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
CC: Richard Jones <rjones@redhat.com>
CC: Paolo Bonzini <bonzini@gnu.org>
CC: qemu-stable@nongnu.org
Message-Id: <20170921110625.9500-1-alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
(cherry picked from commit 8b81253332)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
 		2017-09-28 16:52:09 -05:00
..
Makefile.objs cpu: move interrupt handling out of translate-common.c 2017-07-04 16:00:43 +02:00
cpu-exec-common.c tcg: make tcg_allowed global 2017-07-04 16:01:16 +02:00
cpu-exec.c exec: [tcg] Use different TBs according to the vCPU's dynamic tracing state 2017-07-17 13:11:05 +01:00
cputlb.c accel/tcg/cputlb: avoid recursive BQL (fixes #1706296) 2017-09-28 16:52:09 -05:00
tcg-all.c tcg: make tcg_allowed global 2017-07-04 16:01:16 +02:00
trace-events trace-events: fix code style: print 0x before hex numbers 2017-08-01 12:13:07 +01:00
translate-all.c tcg: Pass generic CPUState to gen_intermediate_code() 2017-07-19 14:45:16 -07:00
translate-all.h
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