diff options
| author | Richard Henderson | 2022-07-08 17:15:30 +0200 |
|---|---|---|
| committer | Peter Maydell | 2022-07-11 14:43:51 +0200 |
| commit | 4a29c36316b58a232715cbf8185dec28a681892c (patch) | |
| tree | 80fc9f3809811700af24b03d6649ce1e89c32c9b /linux-user | |
| parent | linux-user/aarch64: Reset PSTATE.SM on syscalls (diff) | |
| download | qemu-4a29c36316b58a232715cbf8185dec28a681892c.tar.gz qemu-4a29c36316b58a232715cbf8185dec28a681892c.tar.xz qemu-4a29c36316b58a232715cbf8185dec28a681892c.zip | |
linux-user/aarch64: Add SM bit to SVE signal context
Make sure to zero the currently reserved fields.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-36-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'linux-user')
| -rw-r--r-- | linux-user/aarch64/signal.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/linux-user/aarch64/signal.c b/linux-user/aarch64/signal.c index 7da0e36c6d..3cef2f44cf 100644 --- a/linux-user/aarch64/signal.c +++ b/linux-user/aarch64/signal.c @@ -78,7 +78,8 @@ struct target_extra_context { struct target_sve_context { struct target_aarch64_ctx head; uint16_t vl; - uint16_t reserved[3]; + uint16_t flags; + uint16_t reserved[2]; /* The actual SVE data immediately follows. It is laid out * according to TARGET_SVE_SIG_{Z,P}REG_OFFSET, based off of * the original struct pointer. @@ -101,6 +102,8 @@ struct target_sve_context { #define TARGET_SVE_SIG_CONTEXT_SIZE(VQ) \ (TARGET_SVE_SIG_PREG_OFFSET(VQ, 17)) +#define TARGET_SVE_SIG_FLAG_SM 1 + struct target_rt_sigframe { struct target_siginfo info; struct target_ucontext uc; @@ -177,9 +180,13 @@ static void target_setup_sve_record(struct target_sve_context *sve, { int i, j; + memset(sve, 0, sizeof(*sve)); __put_user(TARGET_SVE_MAGIC, &sve->head.magic); __put_user(size, &sve->head.size); __put_user(vq * TARGET_SVE_VQ_BYTES, &sve->vl); + if (FIELD_EX64(env->svcr, SVCR, SM)) { + __put_user(TARGET_SVE_SIG_FLAG_SM, &sve->flags); + } /* Note that SVE regs are stored as a byte stream, with each byte element * at a subsequent address. This corresponds to a little-endian store |