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3 Commits

Author SHA1 Message Date
Richard Henderson ec603b5584 tcg: Record code_gen_buffer address for user-only memory helpers 
When we handle a signal from a fault within a user-only memory helper,
we cannot cpu_restore_state with the PC found within the signal frame.
Use a TLS variable, helper_retaddr, to record the unwind start point
to find the faulting guest insn.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2017-11-15 10:33:27 +01:00
Philippe Mathieu-Daudé a411d29637 accel/tcg: move USER code to user-exec.c 
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20170912211934.20919-1-f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2017-09-17 06:52:19 -07:00
Philippe Mathieu-Daudé 5841066668 accel/tcg: move user-exec to accel/tcg/ 
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20170911213328.9701-3-f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2017-09-17 06:52:19 -07:00