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KVM: s390: introduce defines for control registers

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In KVM code we use masks to test/set control registers.

Let's define the ones we use in arch/s390/include/asm/ctl_reg.h and
replace all occurrences in KVM code.

As we will be needing the define for Clock-comparator sign control soon,
let's also add it.

Suggested-by: Collin L. Walling <walling@linux.ibm.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Collin Walling <walling@linux.ibm.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
This commit is contained in:
David Hildenbrand
2018-04-30 17:55:24 +02:00
committed by Christian Borntraeger
parent 20c922f04b
commit b9224cd738
4 changed files with 30 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
arch/s390/kvm/interrupt.c
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@@ -159,7 +159,7 @@ static int psw_interrupts_disabled(struct kvm_vcpu *vcpu)
static int ckc_interrupts_enabled(struct kvm_vcpu *vcpu)
{
if (psw_extint_disabled(vcpu) ||
!(vcpu->arch.sie_block->gcr[0] & 0x800ul))
!(vcpu->arch.sie_block->gcr[0] & CR0_CLOCK_COMPARATOR_SUBMASK))
return 0;
if (guestdbg_enabled(vcpu) && guestdbg_sstep_enabled(vcpu))
/* No timer interrupts when single stepping */
@@ -172,7 +172,7 @@ static int ckc_irq_pending(struct kvm_vcpu *vcpu)
const u64 now = kvm_s390_get_tod_clock_fast(vcpu->kvm);
const u64 ckc = vcpu->arch.sie_block->ckc;
if (vcpu->arch.sie_block->gcr[0] & 0x0020000000000000ul) {
if (vcpu->arch.sie_block->gcr[0] & CR0_CLOCK_COMPARATOR_SIGN) {
if ((s64)ckc >= (s64)now)
return 0;
} else if (ckc >= now) {
@@ -184,7 +184,7 @@ static int ckc_irq_pending(struct kvm_vcpu *vcpu)
static int cpu_timer_interrupts_enabled(struct kvm_vcpu *vcpu)
{
return !psw_extint_disabled(vcpu) &&
(vcpu->arch.sie_block->gcr[0] & 0x400ul);
(vcpu->arch.sie_block->gcr[0] & CR0_CPU_TIMER_SUBMASK);
}
static int cpu_timer_irq_pending(struct kvm_vcpu *vcpu)
@@ -285,15 +285,15 @@ static unsigned long deliverable_irqs(struct kvm_vcpu *vcpu)
active_mask &= ~IRQ_PEND_IO_MASK;
else
active_mask = disable_iscs(vcpu, active_mask);
if (!(vcpu->arch.sie_block->gcr[0] & 0x2000ul))
if (!(vcpu->arch.sie_block->gcr[0] & CR0_EXTERNAL_CALL_SUBMASK))
__clear_bit(IRQ_PEND_EXT_EXTERNAL, &active_mask);
if (!(vcpu->arch.sie_block->gcr[0] & 0x4000ul))
if (!(vcpu->arch.sie_block->gcr[0] & CR0_EMERGENCY_SIGNAL_SUBMASK))
__clear_bit(IRQ_PEND_EXT_EMERGENCY, &active_mask);
if (!(vcpu->arch.sie_block->gcr[0] & 0x800ul))
if (!(vcpu->arch.sie_block->gcr[0] & CR0_CLOCK_COMPARATOR_SUBMASK))
__clear_bit(IRQ_PEND_EXT_CLOCK_COMP, &active_mask);
if (!(vcpu->arch.sie_block->gcr[0] & 0x400ul))
if (!(vcpu->arch.sie_block->gcr[0] & CR0_CPU_TIMER_SUBMASK))
__clear_bit(IRQ_PEND_EXT_CPU_TIMER, &active_mask);
if (!(vcpu->arch.sie_block->gcr[0] & 0x200ul))
if (!(vcpu->arch.sie_block->gcr[0] & CR0_SERVICE_SIGNAL_SUBMASK))
__clear_bit(IRQ_PEND_EXT_SERVICE, &active_mask);
if (psw_mchk_disabled(vcpu))
active_mask &= ~IRQ_PEND_MCHK_MASK;
@@ -1042,7 +1042,7 @@ int kvm_s390_vcpu_has_irq(struct kvm_vcpu *vcpu, int exclude_stop)
/* external call pending and deliverable */
if (kvm_s390_ext_call_pending(vcpu) &&
!psw_extint_disabled(vcpu) &&
(vcpu->arch.sie_block->gcr[0] & 0x2000ul))
(vcpu->arch.sie_block->gcr[0] & CR0_EXTERNAL_CALL_SUBMASK))
return 1;
if (!exclude_stop && kvm_s390_is_stop_irq_pending(vcpu))
@@ -1062,7 +1062,7 @@ static u64 __calculate_sltime(struct kvm_vcpu *vcpu)
u64 cputm, sltime = 0;
if (ckc_interrupts_enabled(vcpu)) {
if (vcpu->arch.sie_block->gcr[0] & 0x0020000000000000ul) {
if (vcpu->arch.sie_block->gcr[0] & CR0_CLOCK_COMPARATOR_SIGN) {
if ((s64)now < (s64)ckc)
sltime = tod_to_ns((s64)ckc - (s64)now);
} else if (now < ckc) {