DEF_HELPER_5(msa, i32, env, i32, i32, i32, i32)
DEF_HELPER_FLAGS_1(stpt, TCG_CALL_NO_RWG, i64, env)
DEF_HELPER_FLAGS_1(stck, TCG_CALL_NO_RWG_SE, i64, env)
+DEF_HELPER_FLAGS_3(probe_write_access, TCG_CALL_NO_WG, void, env, i64, i64)
/* === Vector Support Instructions === */
DEF_HELPER_FLAGS_4(vll, TCG_CALL_NO_WG, void, env, ptr, i64, i64)
return convert_unicode(env, r1, r2, m3, GETPC(),
decode_utf32, encode_utf16);
}
+
+void probe_write_access(CPUS390XState *env, uint64_t addr, uint64_t len,
+ uintptr_t ra)
+{
+#ifdef CONFIG_USER_ONLY
+ if (!h2g_valid(addr) || !h2g_valid(addr + len - 1) ||
+ page_check_range(addr, len, PAGE_WRITE) < 0) {
+ s390_program_interrupt(env, PGM_ADDRESSING, ILEN_AUTO, ra);
+ }
+#else
+ /* test the actual access, not just any access to the page due to LAP */
+ while (len) {
+ const uint64_t pagelen = -(addr | -TARGET_PAGE_MASK);
+ const uint64_t curlen = MIN(pagelen, len);
+
+ probe_write(env, addr, curlen, cpu_mmu_index(env, false), ra);
+ addr = wrap_address(env, addr + curlen);
+ len -= curlen;
+ }
+#endif
+}
+
+void HELPER(probe_write_access)(CPUS390XState *env, uint64_t addr, uint64_t len)
+{
+ probe_write_access(env, addr, len, GETPC());
+}