#define PRIV_XSCH 0x76
#define PRIV_SQBS 0x8a
#define PRIV_EQBS 0x9c
+#define DIAG_IPL 0x308
#define DIAG_KVM_HYPERCALL 0x500
#define DIAG_KVM_BREAKPOINT 0x501
static int cap_sync_regs;
+static void *legacy_s390_alloc(size_t size);
+
int kvm_arch_init(KVMState *s)
{
cap_sync_regs = kvm_check_extension(s, KVM_CAP_SYNC_REGS);
+ if (!kvm_check_extension(s, KVM_CAP_S390_GMAP)
+ || !kvm_check_extension(s, KVM_CAP_S390_COW)) {
+ phys_mem_set_alloc(legacy_s390_alloc);
+ }
return 0;
}
* to grow. We also have to use MAP parameters that avoid
* read-only mapping of guest pages.
*/
-static void *legacy_s390_alloc(ram_addr_t size)
+static void *legacy_s390_alloc(size_t size)
{
void *mem;
mem = mmap((void *) 0x800000000ULL, size,
PROT_EXEC|PROT_READ|PROT_WRITE,
MAP_SHARED | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
- if (mem == MAP_FAILED) {
- fprintf(stderr, "Allocating RAM failed\n");
- abort();
- }
- return mem;
-}
-
-void *kvm_arch_ram_alloc(ram_addr_t size)
-{
- /* Can we use the standard allocation ? */
- if (kvm_check_extension(kvm_state, KVM_CAP_S390_GMAP) &&
- kvm_check_extension(kvm_state, KVM_CAP_S390_COW)) {
- return NULL;
- } else {
- return legacy_s390_alloc(size);
- }
+ return mem == MAP_FAILED ? NULL : mem;
}
int kvm_arch_insert_sw_breakpoint(CPUState *cs, struct kvm_sw_breakpoint *bp)
kvm_s390_interrupt(cpu, KVM_S390_PROGRAM_INT, code);
}
-static inline void setcc(S390CPU *cpu, uint64_t cc)
-{
- CPUS390XState *env = &cpu->env;
- CPUState *cs = CPU(cpu);
-
- cs->kvm_run->psw_mask &= ~(3ull << 44);
- cs->kvm_run->psw_mask |= (cc & 3) << 44;
-
- env->psw.mask &= ~(3ul << 44);
- env->psw.mask |= (cc & 3) << 44;
-}
-
static int kvm_sclp_service_call(S390CPU *cpu, struct kvm_run *run,
uint16_t ipbh0)
{
int r = 0;
cpu_synchronize_state(CPU(cpu));
+ if (env->psw.mask & PSW_MASK_PSTATE) {
+ enter_pgmcheck(cpu, PGM_PRIVILEGED);
+ return 0;
+ }
sccb = env->regs[ipbh0 & 0xf];
code = env->regs[(ipbh0 & 0xf0) >> 4];
static int kvm_handle_css_inst(S390CPU *cpu, struct kvm_run *run,
uint8_t ipa0, uint8_t ipa1, uint8_t ipb)
{
- int r = 0;
- int no_cc = 0;
CPUS390XState *env = &cpu->env;
CPUState *cs = CPU(cpu);
switch (ipa1) {
case PRIV_XSCH:
- r = ioinst_handle_xsch(env, env->regs[1]);
+ ioinst_handle_xsch(cpu, env->regs[1]);
break;
case PRIV_CSCH:
- r = ioinst_handle_csch(env, env->regs[1]);
+ ioinst_handle_csch(cpu, env->regs[1]);
break;
case PRIV_HSCH:
- r = ioinst_handle_hsch(env, env->regs[1]);
+ ioinst_handle_hsch(cpu, env->regs[1]);
break;
case PRIV_MSCH:
- r = ioinst_handle_msch(env, env->regs[1], run->s390_sieic.ipb);
+ ioinst_handle_msch(cpu, env->regs[1], run->s390_sieic.ipb);
break;
case PRIV_SSCH:
- r = ioinst_handle_ssch(env, env->regs[1], run->s390_sieic.ipb);
+ ioinst_handle_ssch(cpu, env->regs[1], run->s390_sieic.ipb);
break;
case PRIV_STCRW:
- r = ioinst_handle_stcrw(env, run->s390_sieic.ipb);
+ ioinst_handle_stcrw(cpu, run->s390_sieic.ipb);
break;
case PRIV_STSCH:
- r = ioinst_handle_stsch(env, env->regs[1], run->s390_sieic.ipb);
+ ioinst_handle_stsch(cpu, env->regs[1], run->s390_sieic.ipb);
break;
case PRIV_TSCH:
/* We should only get tsch via KVM_EXIT_S390_TSCH. */
fprintf(stderr, "Spurious tsch intercept\n");
break;
case PRIV_CHSC:
- r = ioinst_handle_chsc(env, run->s390_sieic.ipb);
+ ioinst_handle_chsc(cpu, run->s390_sieic.ipb);
break;
case PRIV_TPI:
/* This should have been handled by kvm already. */
fprintf(stderr, "Spurious tpi intercept\n");
break;
case PRIV_SCHM:
- no_cc = 1;
- r = ioinst_handle_schm(env, env->regs[1], env->regs[2],
- run->s390_sieic.ipb);
+ ioinst_handle_schm(cpu, env->regs[1], env->regs[2],
+ run->s390_sieic.ipb);
break;
case PRIV_RSCH:
- r = ioinst_handle_rsch(env, env->regs[1]);
+ ioinst_handle_rsch(cpu, env->regs[1]);
break;
case PRIV_RCHP:
- r = ioinst_handle_rchp(env, env->regs[1]);
+ ioinst_handle_rchp(cpu, env->regs[1]);
break;
case PRIV_STCPS:
/* We do not provide this instruction, it is suppressed. */
- no_cc = 1;
- r = 0;
break;
case PRIV_SAL:
- no_cc = 1;
- r = ioinst_handle_sal(env, env->regs[1]);
+ ioinst_handle_sal(cpu, env->regs[1]);
break;
case PRIV_SIGA:
/* Not provided, set CC = 3 for subchannel not operational */
- r = 3;
+ setcc(cpu, 3);
break;
default:
return -1;
}
- if (r >= 0 && !no_cc) {
- setcc(cpu, r);
- }
-
return 0;
}
return 0;
}
+static void kvm_handle_diag_308(S390CPU *cpu, struct kvm_run *run)
+{
+ uint64_t r1, r3;
+
+ cpu_synchronize_state(CPU(cpu));
+ r1 = (run->s390_sieic.ipa & 0x00f0) >> 8;
+ r3 = run->s390_sieic.ipa & 0x000f;
+ handle_diag_308(&cpu->env, r1, r3);
+}
+
static int handle_diag(S390CPU *cpu, struct kvm_run *run, int ipb_code)
{
int r = 0;
switch (ipb_code) {
- case DIAG_KVM_HYPERCALL:
- r = handle_hypercall(cpu, run);
- break;
- case DIAG_KVM_BREAKPOINT:
- sleep(10);
- break;
- default:
- DPRINTF("KVM: unknown DIAG: 0x%x\n", ipb_code);
- r = -1;
- break;
+ case DIAG_IPL:
+ kvm_handle_diag_308(cpu, run);
+ break;
+ case DIAG_KVM_HYPERCALL:
+ r = handle_hypercall(cpu, run);
+ break;
+ case DIAG_KVM_BREAKPOINT:
+ sleep(10);
+ break;
+ default:
+ DPRINTF("KVM: unknown DIAG: 0x%x\n", ipb_code);
+ r = -1;
+ break;
}
return r;
}
-static int s390_cpu_restart(S390CPU *cpu)
+int kvm_s390_cpu_restart(S390CPU *cpu)
{
kvm_s390_interrupt(cpu, KVM_S390_RESTART, 0);
s390_add_running_cpu(cpu);
qemu_cpu_kick(CPU(cpu));
- DPRINTF("DONE: SIGP cpu restart: %p\n", &cpu->env);
+ DPRINTF("DONE: KVM cpu restart: %p\n", &cpu->env);
return 0;
}
switch (order_code) {
case SIGP_RESTART:
- r = s390_cpu_restart(target_cpu);
+ r = kvm_s390_cpu_restart(target_cpu);
break;
case SIGP_STORE_STATUS_ADDR:
r = s390_store_status(target_env, parameter);
projects / qemu.git / blobdiff