From: Jens Freimann <jfrei@xxxxxxxxxxxxxxxxxx>
Convert local irqs in __do_deliver_interrupt() to new guest
access functions.
Signed-off-by: Jens Freimann <jfrei@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
---
arch/s390/kvm/interrupt.c | 81 +++++++++++++++++++++++++----------------------
1 file changed, 43 insertions(+), 38 deletions(-)
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index cb782e3..a1403ba 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -186,26 +186,28 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu,
vcpu->stat.deliver_emergency_signal++;
trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, inti->type,
inti->emerg.code, 0);
- rc = put_guest(vcpu, 0x1201, (u16 __user *)__LC_EXT_INT_CODE);
- rc |= put_guest(vcpu, inti->emerg.code,
- (u16 __user *)__LC_EXT_CPU_ADDR);
- rc |= copy_to_guest(vcpu, __LC_EXT_OLD_PSW,
+ rc = put_guest_lc(vcpu, 0x1201, (u16 *)__LC_EXT_INT_CODE);
+ rc |= put_guest_lc(vcpu, inti->emerg.code,
+ (u16 *)__LC_EXT_CPU_ADDR);
+ rc |= write_guest_lc(vcpu, __LC_EXT_OLD_PSW,
+ &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
+ rc |= read_guest_lc(vcpu, __LC_EXT_NEW_PSW,
&vcpu->arch.sie_block->gpsw, sizeof(psw_t));
- rc |= copy_from_guest(vcpu, &vcpu->arch.sie_block->gpsw,
- __LC_EXT_NEW_PSW, sizeof(psw_t));
break;
case KVM_S390_INT_EXTERNAL_CALL:
VCPU_EVENT(vcpu, 4, "%s", "interrupt: sigp ext call");
vcpu->stat.deliver_external_call++;
trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, inti->type,
inti->extcall.code, 0);
- rc = put_guest(vcpu, 0x1202, (u16 __user *)__LC_EXT_INT_CODE);
- rc |= put_guest(vcpu, inti->extcall.code,
- (u16 __user *)__LC_EXT_CPU_ADDR);
- rc |= copy_to_guest(vcpu, __LC_EXT_OLD_PSW,
- &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
- rc |= copy_from_guest(vcpu, &vcpu->arch.sie_block->gpsw,
- __LC_EXT_NEW_PSW, sizeof(psw_t));
+ rc = put_guest_lc(vcpu, 0x1202, (u16 *)__LC_EXT_INT_CODE);
+ rc |= put_guest_lc(vcpu, inti->extcall.code,
+ (u16 *)__LC_EXT_CPU_ADDR);
+ rc |= write_guest_lc(vcpu, __LC_EXT_OLD_PSW,
+ &vcpu->arch.sie_block->gpsw,
+ sizeof(psw_t));
+ rc |= read_guest_lc(vcpu, __LC_EXT_NEW_PSW,
+ &vcpu->arch.sie_block->gpsw,
+ sizeof(psw_t));
break;
case KVM_S390_INT_SERVICE:
VCPU_EVENT(vcpu, 4, "interrupt: sclp parm:%x",
@@ -225,14 +227,14 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu,
case KVM_S390_INT_PFAULT_INIT:
trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, inti->type, 0,
inti->ext.ext_params2);
- rc = put_guest(vcpu, 0x2603, (u16 __user *) __LC_EXT_INT_CODE);
- rc |= put_guest(vcpu, 0x0600, (u16 __user *) __LC_EXT_CPU_ADDR);
- rc |= copy_to_guest(vcpu, __LC_EXT_OLD_PSW,
+ rc = put_guest_lc(vcpu, 0x2603, (u16 *) __LC_EXT_INT_CODE);
+ rc |= put_guest_lc(vcpu, 0x0600, (u16 *) __LC_EXT_CPU_ADDR);
+ rc |= write_guest_lc(vcpu, __LC_EXT_OLD_PSW,
+ &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
+ rc |= read_guest_lc(vcpu, __LC_EXT_NEW_PSW,
&vcpu->arch.sie_block->gpsw, sizeof(psw_t));
- rc |= copy_from_guest(vcpu, &vcpu->arch.sie_block->gpsw,
- __LC_EXT_NEW_PSW, sizeof(psw_t));
- rc |= put_guest(vcpu, inti->ext.ext_params2,
- (u64 __user *) __LC_EXT_PARAMS2);
+ rc |= put_guest_lc(vcpu, inti->ext.ext_params2,
+ (u64 *) __LC_EXT_PARAMS2);
break;
case KVM_S390_INT_PFAULT_DONE:
trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, inti->type, 0,
@@ -288,12 +290,12 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu,
vcpu->stat.deliver_restart_signal++;
trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, inti->type,
0, 0);
- rc = copy_to_guest(vcpu,
- offsetof(struct _lowcore, restart_old_psw),
- &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
- rc |= copy_from_guest(vcpu, &vcpu->arch.sie_block->gpsw,
- offsetof(struct _lowcore, restart_psw),
- sizeof(psw_t));
+ rc = write_guest_lc(vcpu,
+ offsetof(struct _lowcore, restart_old_psw),
+ &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
+ rc |= read_guest_lc(vcpu, offsetof(struct _lowcore, restart_psw),
+ &vcpu->arch.sie_block->gpsw,
+ sizeof(psw_t));
atomic_clear_mask(CPUSTAT_STOPPED, &vcpu->arch.sie_block->cpuflags);
break;
case KVM_S390_PROGRAM_INT:
@@ -303,13 +305,15 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu,
vcpu->stat.deliver_program_int++;
trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id, inti->type,
inti->pgm.code, 0);
- rc = put_guest(vcpu, inti->pgm.code, (u16 __user *)__LC_PGM_INT_CODE);
- rc |= put_guest(vcpu, table[vcpu->arch.sie_block->ipa >> 14],
- (u16 __user *)__LC_PGM_ILC);
- rc |= copy_to_guest(vcpu, __LC_PGM_OLD_PSW,
- &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
- rc |= copy_from_guest(vcpu, &vcpu->arch.sie_block->gpsw,
- __LC_PGM_NEW_PSW, sizeof(psw_t));
+ rc = put_guest_lc(vcpu, inti->pgm.code,
+ (u16 __user *)__LC_PGM_INT_CODE);
+ rc |= put_guest_lc(vcpu, table[vcpu->arch.sie_block->ipa >> 14],
+ (u16 __user *)__LC_PGM_ILC);
+ rc |= write_guest_lc(vcpu, __LC_PGM_OLD_PSW,
+ &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
+ rc |= read_guest_lc(vcpu, __LC_PGM_NEW_PSW,
+ &vcpu->arch.sie_block->gpsw,
+ sizeof(psw_t));
break;
case KVM_S390_MCHK:
@@ -372,11 +376,12 @@ static int __try_deliver_ckc_interrupt(struct kvm_vcpu *vcpu)
return 0;
if (!(vcpu->arch.sie_block->gcr[0] & 0x800ul))
return 0;
- rc = put_guest(vcpu, 0x1004, (u16 __user *)__LC_EXT_INT_CODE);
- rc |= copy_to_guest(vcpu, __LC_EXT_OLD_PSW,
- &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
- rc |= copy_from_guest(vcpu, &vcpu->arch.sie_block->gpsw,
- __LC_EXT_NEW_PSW, sizeof(psw_t));
+ rc = put_guest_lc(vcpu, 0x1004, (u16 __user *)__LC_EXT_INT_CODE);
+ rc |= write_guest_lc(vcpu, __LC_EXT_OLD_PSW,
+ &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
+ rc |= read_guest_lc(vcpu, __LC_EXT_NEW_PSW,
+ &vcpu->arch.sie_block->gpsw,
+ sizeof(psw_t));
if (rc) {
printk("kvm: The guest lowcore is not mapped during interrupt "
"delivery, killing userspace\n");
--
1.8.4.2
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