On 7/25/25 07:55, Peter Maydell wrote:
FEAT_SME2 adds the ZT0 register, whose contents may need to be preserved and restored on signal handler entry and exit. This is done with a new ZT_MAGIC record. We forgot to implement support for this in our linux-user code before enabling the SME2p1 emulation, which meant that a signal handler using SME would corrupt the ZT0 register value, and code that attempted to unwind an exception from inside a signal handler would not work.Add the missing record handling. Fixes: 7b1613a1020d2942 ("target/arm: Enable FEAT_SME2p1 on -cpu max") Signed-off-by: Peter Maydell<peter.mayd...@linaro.org> --- linux-user/aarch64/signal.c | 93 ++++++++++++++++++++++++++++++++++++- 1 file changed, 92 insertions(+), 1 deletion(-)
Reviewed-by: Richard Henderson <richard.hender...@linaro.org> r~
