diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2015-09-07 10:39:28 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2015-09-07 10:39:28 +0100 |
| commit | e9ebfbfcf31c11fb3bd2fc436fa17ce45a4e7086 (patch) | |
| tree | ab0870ba7fbecc9765af37768f809ea6c8953ef7 /target-arm | |
| parent | faacc041619581c566c21ed87aa1933420731282 (diff) | |
target-arm/arm-semi.c: Implement A64 specific SyncCacheRange call
The A64 semihosting ABI defines a new call SyncCacheRange
for doing a 'clean D-cache and invalidate I-cache' sequence.
Since QEMU doesn't implement caches, we can implement this as a nop.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Christopher Covington <christopher.covington@linaro.org>
Tested-by: Christopher Covington <cov@codeaurora.org>
Message-id: 1439483745-28752-8-git-send-email-peter.maydell@linaro.org
Diffstat (limited to 'target-arm')
| -rw-r--r-- | target-arm/arm-semi.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/target-arm/arm-semi.c b/target-arm/arm-semi.c index 1d4cc59e79..1d0d7aa32b 100644 --- a/target-arm/arm-semi.c +++ b/target-arm/arm-semi.c @@ -58,6 +58,7 @@ #define TARGET_SYS_GET_CMDLINE 0x15 #define TARGET_SYS_HEAPINFO 0x16 #define TARGET_SYS_EXIT 0x18 +#define TARGET_SYS_SYNCCACHE 0x19 /* ADP_Stopped_ApplicationExit is used for exit(0), * anything else is implemented as exit(1) */ @@ -623,6 +624,15 @@ target_ulong do_arm_semihosting(CPUARMState *env) ret = (args == ADP_Stopped_ApplicationExit) ? 0 : 1; gdb_exit(env, ret); exit(ret); + case TARGET_SYS_SYNCCACHE: + /* Clean the D-cache and invalidate the I-cache for the specified + * virtual address range. This is a nop for us since we don't + * implement caches. This is only present on A64. + */ + if (is_a64(env)) { + return 0; + } + /* fall through -- invalid for A32/T32 */ default: fprintf(stderr, "qemu: Unsupported SemiHosting SWI 0x%02x\n", nr); cpu_dump_state(cs, stderr, fprintf, 0); |