Merge tag 'kvm-s390-next-20141204' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD

KVM: s390: Fixups for kvm/next (3.19)

Here we have two fixups of the latest interrupt rework and
one architectural fixup.

1 files changed, 18 insertions, 15 deletions

diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index b3d4409fcf3f..f00f31e66cd8 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -281,12 +281,13 @@ static int __must_check __deliver_cpu_timer(struct kvm_vcpu *vcpu)
 
         rc  = put_guest_lc(vcpu, EXT_IRQ_CPU_TIMER,
                            (u16 *)__LC_EXT_INT_CODE);
+        rc |= put_guest_lc(vcpu, 0, (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));
         clear_bit(IRQ_PEND_EXT_CPU_TIMER, &li->pending_irqs);
-        return rc;
+        return rc ? -EFAULT : 0;
 }
 
 static int __must_check __deliver_ckc(struct kvm_vcpu *vcpu)
@@ -299,12 +300,13 @@ static int __must_check __deliver_ckc(struct kvm_vcpu *vcpu)
 
         rc  = put_guest_lc(vcpu, EXT_IRQ_CLK_COMP,
                            (u16 __user *)__LC_EXT_INT_CODE);
+        rc |= put_guest_lc(vcpu, 0, (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));
         clear_bit(IRQ_PEND_EXT_CLOCK_COMP, &li->pending_irqs);
-        return rc;
+        return rc ? -EFAULT : 0;
 }
 
 static int __must_check __deliver_pfault_init(struct kvm_vcpu *vcpu)
@@ -332,7 +334,7 @@ static int __must_check __deliver_pfault_init(struct kvm_vcpu *vcpu)
         rc |= read_guest_lc(vcpu, __LC_EXT_NEW_PSW,
                             &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
         rc |= put_guest_lc(vcpu, ext.ext_params2, (u64 *) __LC_EXT_PARAMS2);
-        return rc;
+        return rc ? -EFAULT : 0;
 }
 
 static int __must_check __deliver_machine_check(struct kvm_vcpu *vcpu)
@@ -369,7 +371,7 @@ static int __must_check __deliver_machine_check(struct kvm_vcpu *vcpu)
                              &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
         rc |= read_guest_lc(vcpu, __LC_MCK_NEW_PSW,
                             &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
-        return rc;
+        return rc ? -EFAULT : 0;
 }
 
 static int __must_check __deliver_restart(struct kvm_vcpu *vcpu)
@@ -387,7 +389,7 @@ static int __must_check __deliver_restart(struct kvm_vcpu *vcpu)
         rc |= read_guest_lc(vcpu, offsetof(struct _lowcore, restart_psw),
                             &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
         clear_bit(IRQ_PEND_RESTART, &li->pending_irqs);
-        return rc;
+        return rc ? -EFAULT : 0;
 }
 
 static int __must_check __deliver_stop(struct kvm_vcpu *vcpu)
@@ -448,7 +450,7 @@ static int __must_check __deliver_emergency_signal(struct kvm_vcpu *vcpu)
                              &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));
-        return rc;
+        return rc ? -EFAULT : 0;
 }
 
 static int __must_check __deliver_external_call(struct kvm_vcpu *vcpu)
@@ -476,7 +478,7 @@ static int __must_check __deliver_external_call(struct kvm_vcpu *vcpu)
                              &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));
-        return rc;
+        return rc ? -EFAULT : 0;
 }
 
 static int __must_check __deliver_prog(struct kvm_vcpu *vcpu)
@@ -570,7 +572,7 @@ static int __must_check __deliver_prog(struct kvm_vcpu *vcpu)
                              &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));
-        return rc;
+        return rc ? -EFAULT : 0;
 }
 
 static int __must_check __deliver_service(struct kvm_vcpu *vcpu,
@@ -585,13 +587,14 @@ static int __must_check __deliver_service(struct kvm_vcpu *vcpu,
                                          inti->ext.ext_params, 0);
 
         rc  = put_guest_lc(vcpu, EXT_IRQ_SERVICE_SIG, (u16 *)__LC_EXT_INT_CODE);
+        rc |= put_guest_lc(vcpu, 0, (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 |= put_guest_lc(vcpu, inti->ext.ext_params,
                            (u32 *)__LC_EXT_PARAMS);
-        return rc;
+        return rc ? -EFAULT : 0;
 }
 
 static int __must_check __deliver_pfault_done(struct kvm_vcpu *vcpu,
@@ -611,7 +614,7 @@ static int __must_check __deliver_pfault_done(struct kvm_vcpu *vcpu,
                             &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
         rc |= put_guest_lc(vcpu, inti->ext.ext_params2,
                            (u64 *)__LC_EXT_PARAMS2);
-        return rc;
+        return rc ? -EFAULT : 0;
 }
 
 static int __must_check __deliver_virtio(struct kvm_vcpu *vcpu,
@@ -636,7 +639,7 @@ static int __must_check __deliver_virtio(struct kvm_vcpu *vcpu,
                            (u32 *)__LC_EXT_PARAMS);
         rc |= put_guest_lc(vcpu, inti->ext.ext_params2,
                            (u64 *)__LC_EXT_PARAMS2);
-        return rc;
+        return rc ? -EFAULT : 0;
 }
 
 static int __must_check __deliver_io(struct kvm_vcpu *vcpu,
@@ -664,7 +667,7 @@ static int __must_check __deliver_io(struct kvm_vcpu *vcpu,
                              &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
         rc |= read_guest_lc(vcpu, __LC_IO_NEW_PSW,
                             &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
-        return rc;
+        return rc ? -EFAULT : 0;
 }
 
 static int __must_check __deliver_mchk_floating(struct kvm_vcpu *vcpu,
@@ -689,7 +692,7 @@ static int __must_check __deliver_mchk_floating(struct kvm_vcpu *vcpu,
                              &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
         rc |= read_guest_lc(vcpu, __LC_MCK_NEW_PSW,
                             &vcpu->arch.sie_block->gpsw, sizeof(psw_t));
-        return rc;
+        return rc ? -EFAULT : 0;
 }
 
 typedef int (*deliver_irq_t)(struct kvm_vcpu *vcpu);
@@ -926,7 +929,7 @@ static int __inject_prog(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
         struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
 
         li->irq.pgm = irq->u.pgm;
-        __set_bit(IRQ_PEND_PROG, &li->pending_irqs);
+        set_bit(IRQ_PEND_PROG, &li->pending_irqs);
         return 0;
 }
 
@@ -992,7 +995,7 @@ int __inject_extcall(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
                                    irq->u.extcall.code, 0, 2);
 
         *extcall = irq->u.extcall;
-        __set_bit(IRQ_PEND_EXT_EXTERNAL, &li->pending_irqs);
+        set_bit(IRQ_PEND_EXT_EXTERNAL, &li->pending_irqs);
         atomic_set_mask(CPUSTAT_EXT_INT, li->cpuflags);
         return 0;
 }