diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2021-07-27 19:41:04 -1000 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2021-11-02 07:00:52 -0400 |
| commit | 37e891e38fe1e81fc468d8a000912f8e7ee61336 (patch) | |
| tree | 5e5bdd0a63b37fc86d48dfc34244c20287e267ba /accel/tcg | |
| parent | 9395cd0a38bfec68d150443f59aa50e44877a9c1 (diff) | |
tcg: Add helper_unaligned_{ld,st} for user-only sigbus
To be called from tcg generated code on hosts that support
unaligned accesses natively, in response to an access that
is supposed to be aligned.
Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'accel/tcg')
| -rw-r--r-- | accel/tcg/user-exec.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/accel/tcg/user-exec.c b/accel/tcg/user-exec.c index aaf47d89d2..1528a21fad 100644 --- a/accel/tcg/user-exec.c +++ b/accel/tcg/user-exec.c @@ -27,6 +27,7 @@ #include "exec/helper-proto.h" #include "qemu/atomic128.h" #include "trace/trace-root.h" +#include "tcg/tcg-ldst.h" #include "internal.h" __thread uintptr_t helper_retaddr; @@ -215,6 +216,16 @@ static void validate_memop(MemOpIdx oi, MemOp expected) #endif } +void helper_unaligned_ld(CPUArchState *env, target_ulong addr) +{ + cpu_loop_exit_sigbus(env_cpu(env), addr, MMU_DATA_LOAD, GETPC()); +} + +void helper_unaligned_st(CPUArchState *env, target_ulong addr) +{ + cpu_loop_exit_sigbus(env_cpu(env), addr, MMU_DATA_STORE, GETPC()); +} + static void *cpu_mmu_lookup(CPUArchState *env, target_ulong addr, MemOpIdx oi, uintptr_t ra, MMUAccessType type) { |