@@ -214,6 +214,11 @@ void kvm_s390_reset_vcpu(S390CPU *cpu)
}
}
+static int can_sync_regs(CPUState *cs, int regs)
+{
+ return cap_sync_regs && (cs->kvm_run->kvm_valid_regs & regs) == regs;
+}
+
int kvm_arch_put_registers(CPUState *cs, int level)
{
S390CPU *cpu = S390_CPU(cs);
@@ -228,7 +233,7 @@ int kvm_arch_put_registers(CPUState *cs, int level)
cs->kvm_run->psw_addr = env->psw.addr;
cs->kvm_run->psw_mask = env->psw.mask;
- if (cap_sync_regs && cs->kvm_run->kvm_valid_regs & KVM_SYNC_GPRS) {
+ if (can_sync_regs(cs, KVM_SYNC_GPRS)) {
for (i = 0; i < 16; i++) {
cs->kvm_run->s.regs.gprs[i] = env->regs[i];
cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_GPRS;
@@ -285,9 +290,8 @@ int kvm_arch_put_registers(CPUState *cs, int level)
}
}
- if (cap_sync_regs &&
- cs->kvm_run->kvm_valid_regs & KVM_SYNC_ACRS &&
- cs->kvm_run->kvm_valid_regs & KVM_SYNC_CRS) {
+ /* access registers and control registers*/
+ if (can_sync_regs(cs, KVM_SYNC_ACRS | KVM_SYNC_CRS)) {
for (i = 0; i < 16; i++) {
cs->kvm_run->s.regs.acrs[i] = env->aregs[i];
cs->kvm_run->s.regs.crs[i] = env->cregs[i];
@@ -306,7 +310,7 @@ int kvm_arch_put_registers(CPUState *cs, int level)
}
/* Finally the prefix */
- if (cap_sync_regs && cs->kvm_run->kvm_valid_regs & KVM_SYNC_PREFIX) {
+ if (can_sync_regs(cs, KVM_SYNC_PREFIX)) {
cs->kvm_run->s.regs.prefix = env->psa;
cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_PREFIX;
} else {
@@ -329,7 +333,7 @@ int kvm_arch_get_registers(CPUState *cs)
env->psw.mask = cs->kvm_run->psw_mask;
/* the GPRS */
- if (cap_sync_regs && cs->kvm_run->kvm_valid_regs & KVM_SYNC_GPRS) {
+ if (can_sync_regs(cs, KVM_SYNC_GPRS)) {
for (i = 0; i < 16; i++) {
env->regs[i] = cs->kvm_run->s.regs.gprs[i];
}
@@ -344,9 +348,7 @@ int kvm_arch_get_registers(CPUState *cs)
}
/* The ACRS and CRS */
- if (cap_sync_regs &&
- cs->kvm_run->kvm_valid_regs & KVM_SYNC_ACRS &&
- cs->kvm_run->kvm_valid_regs & KVM_SYNC_CRS) {
+ if (can_sync_regs(cs, KVM_SYNC_ACRS | KVM_SYNC_CRS)) {
for (i = 0; i < 16; i++) {
env->aregs[i] = cs->kvm_run->s.regs.acrs[i];
env->cregs[i] = cs->kvm_run->s.regs.crs[i];
@@ -373,7 +375,7 @@ int kvm_arch_get_registers(CPUState *cs)
env->fpc = fpu.fpc;
/* The prefix */
- if (cap_sync_regs && cs->kvm_run->kvm_valid_regs & KVM_SYNC_PREFIX) {
+ if (can_sync_regs(cs, KVM_SYNC_PREFIX)) {
env->psa = cs->kvm_run->s.regs.prefix;
}