diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2022-12-07 16:08:46 +0000 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-01-06 23:07:03 +0000 |
| commit | 761ea522130d7beb02c6c52d0c13939e90466d31 (patch) | |
| tree | 17902fd5ca8c5af6b0a59487ec40957935e58fec /tcg/s390x/tcg-target.c.inc | |
| parent | 0a3afe09cbb0c9634ea6ae2494abbd08f01285bd (diff) | |
tcg/s390x: Check for long-displacement facility at startup
We are already assuming the existance of long-displacement, but were
not being explicit about it. This has been present since z990.
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg/s390x/tcg-target.c.inc')
| -rw-r--r-- | tcg/s390x/tcg-target.c.inc | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tcg/s390x/tcg-target.c.inc b/tcg/s390x/tcg-target.c.inc index dea889ffa1..1fcefba7ba 100644 --- a/tcg/s390x/tcg-target.c.inc +++ b/tcg/s390x/tcg-target.c.inc @@ -3211,6 +3211,7 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op) static void query_s390_facilities(void) { unsigned long hwcap = qemu_getauxval(AT_HWCAP); + const char *which; /* Is STORE FACILITY LIST EXTENDED available? Honestly, I believe this is present on all 64-bit systems, but let's check for it anyway. */ @@ -3232,6 +3233,20 @@ static void query_s390_facilities(void) if (!(hwcap & HWCAP_S390_VXRS)) { s390_facilities[2] = 0; } + + /* + * Check for all required facilities. + * ZARCH_ACTIVE is done via preprocessor check for 64-bit. + */ + if (!HAVE_FACILITY(LONG_DISP)) { + which = "long-displacement"; + goto fail; + } + return; + + fail: + error_report("%s: missing required facility %s", __func__, which); + exit(EXIT_FAILURE); } static void tcg_target_init(TCGContext *s) |