#define SIGP_ORDER_MASK 0x000000ff
void load_psw(CPUS390XState *env, uint64_t mask, uint64_t addr);
+target_ulong mmu_real2abs(CPUS390XState *env, target_ulong raddr);
int mmu_translate(CPUS390XState *env, target_ulong vaddr, int rw, uint64_t asc,
target_ulong *raddr, int *flags, bool exc);
int sclp_service_call(CPUS390XState *env, uint64_t sccb, uint32_t code);
DEF_HELPER_FLAGS_4(lctlg, TCG_CALL_NO_WG, void, env, i32, i64, i32)
DEF_HELPER_FLAGS_4(stctl, TCG_CALL_NO_WG, void, env, i32, i64, i32)
DEF_HELPER_FLAGS_4(stctg, TCG_CALL_NO_WG, void, env, i32, i64, i32)
+DEF_HELPER_FLAGS_2(testblock, TCG_CALL_NO_WG, i32, env, i64)
DEF_HELPER_FLAGS_2(tprot, TCG_CALL_NO_RWG, i32, i64, i64)
DEF_HELPER_FLAGS_2(iske, TCG_CALL_NO_RWG_SE, i64, env, i64)
DEF_HELPER_FLAGS_3(sske, TCG_CALL_NO_RWG, void, env, i64, i64)
/* STORE USING REAL ADDRESS */
C(0xb246, STURA, RRE, Z, r1_o, r2_o, 0, 0, stura, 0)
C(0xb925, STURG, RRE, Z, r1_o, r2_o, 0, 0, sturg, 0)
+/* TEST BLOCK */
+ C(0xb22c, TB, RRE, Z, 0, r2_o, 0, 0, testblock, 0)
/* TEST PROTECTION */
C(0xe501, TPROT, SSE, Z, la1, a2, 0, 0, tprot, 0)
#include "qemu/osdep.h"
#include "cpu.h"
+#include "exec/address-spaces.h"
#include "exec/helper-proto.h"
#include "exec/exec-all.h"
#include "exec/cpu_ldst.h"
}
}
+uint32_t HELPER(testblock)(CPUS390XState *env, uint64_t real_addr)
+{
+ CPUState *cs = CPU(s390_env_get_cpu(env));
+ uint64_t abs_addr;
+ int i;
+
+ real_addr = fix_address(env, real_addr);
+ abs_addr = mmu_real2abs(env, real_addr) & TARGET_PAGE_MASK;
+ if (!address_space_access_valid(&address_space_memory, abs_addr,
+ TARGET_PAGE_SIZE, true)) {
+ program_interrupt(env, PGM_ADDRESSING, 4);
+ return 1;
+ }
+
+ /* Check low-address protection */
+ if ((env->cregs[0] & CR0_LOWPROT) && real_addr < 0x2000) {
+ program_interrupt(env, PGM_PROTECTION, 4);
+ return 1;
+ }
+
+ for (i = 0; i < TARGET_PAGE_SIZE; i += 8) {
+ stq_phys(cs->as, abs_addr + i, 0);
+ }
+
+ return 0;
+}
+
uint32_t HELPER(tprot)(uint64_t a1, uint64_t a2)
{
/* XXX implement */
* Translate real address to absolute (= physical)
* address by taking care of the prefix mapping.
*/
-static target_ulong mmu_real2abs(CPUS390XState *env, target_ulong raddr)
+target_ulong mmu_real2abs(CPUS390XState *env, target_ulong raddr)
{
if (raddr < 0x2000) {
return raddr + env->psa; /* Map the lowcore. */
}
#ifndef CONFIG_USER_ONLY
+
+static ExitStatus op_testblock(DisasContext *s, DisasOps *o)
+{
+ check_privileged(s);
+ potential_page_fault(s);
+ gen_helper_testblock(cc_op, cpu_env, o->in2);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
static ExitStatus op_tprot(DisasContext *s, DisasOps *o)
{
potential_page_fault(s);
set_cc_static(s);
return NO_EXIT;
}
+
#endif
static ExitStatus op_tr(DisasContext *s, DisasOps *o)