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Diffstat (limited to 'arch/s390/kvm/interrupt.c')
-rw-r--r--arch/s390/kvm/interrupt.c53
1 files changed, 23 insertions, 30 deletions
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 84a7fed4cd4..2960702b482 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -13,6 +13,7 @@
#include <asm/lowcore.h>
#include <asm/uaccess.h>
#include <linux/kvm_host.h>
+#include <linux/signal.h>
#include "kvm-s390.h"
#include "gaccess.h"
@@ -31,7 +32,7 @@ static int psw_interrupts_disabled(struct kvm_vcpu *vcpu)
}
static int __interrupt_is_deliverable(struct kvm_vcpu *vcpu,
- struct interrupt_info *inti)
+ struct kvm_s390_interrupt_info *inti)
{
switch (inti->type) {
case KVM_S390_INT_EMERGENCY:
@@ -91,7 +92,7 @@ static void __set_cpuflag(struct kvm_vcpu *vcpu, u32 flag)
}
static void __set_intercept_indicator(struct kvm_vcpu *vcpu,
- struct interrupt_info *inti)
+ struct kvm_s390_interrupt_info *inti)
{
switch (inti->type) {
case KVM_S390_INT_EMERGENCY:
@@ -111,7 +112,7 @@ static void __set_intercept_indicator(struct kvm_vcpu *vcpu,
}
static void __do_deliver_interrupt(struct kvm_vcpu *vcpu,
- struct interrupt_info *inti)
+ struct kvm_s390_interrupt_info *inti)
{
const unsigned short table[] = { 2, 4, 4, 6 };
int rc, exception = 0;
@@ -246,15 +247,10 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu,
default:
BUG();
}
-
if (exception) {
- VCPU_EVENT(vcpu, 1, "%s", "program exception while delivering"
- " interrupt");
- kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
- if (inti->type == KVM_S390_PROGRAM_INT) {
- printk(KERN_WARNING "kvm: recursive program check\n");
- BUG();
- }
+ printk("kvm: The guest lowcore is not mapped during interrupt "
+ "delivery, killing userspace\n");
+ do_exit(SIGKILL);
}
}
@@ -277,22 +273,19 @@ static int __try_deliver_ckc_interrupt(struct kvm_vcpu *vcpu)
__LC_EXT_NEW_PSW, sizeof(psw_t));
if (rc == -EFAULT)
exception = 1;
-
if (exception) {
- VCPU_EVENT(vcpu, 1, "%s", "program exception while delivering" \
- " ckc interrupt");
- kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
- return 0;
+ printk("kvm: The guest lowcore is not mapped during interrupt "
+ "delivery, killing userspace\n");
+ do_exit(SIGKILL);
}
-
return 1;
}
int kvm_cpu_has_interrupt(struct kvm_vcpu *vcpu)
{
- struct local_interrupt *li = &vcpu->arch.local_int;
- struct float_interrupt *fi = vcpu->arch.local_int.float_int;
- struct interrupt_info *inti;
+ struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
+ struct kvm_s390_float_interrupt *fi = vcpu->arch.local_int.float_int;
+ struct kvm_s390_interrupt_info *inti;
int rc = 0;
if (atomic_read(&li->active)) {
@@ -408,9 +401,9 @@ void kvm_s390_idle_wakeup(unsigned long data)
void kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu)
{
- struct local_interrupt *li = &vcpu->arch.local_int;
- struct float_interrupt *fi = vcpu->arch.local_int.float_int;
- struct interrupt_info *n, *inti = NULL;
+ struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
+ struct kvm_s390_float_interrupt *fi = vcpu->arch.local_int.float_int;
+ struct kvm_s390_interrupt_info *n, *inti = NULL;
int deliver;
__reset_intercept_indicators(vcpu);
@@ -465,8 +458,8 @@ void kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu)
int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code)
{
- struct local_interrupt *li = &vcpu->arch.local_int;
- struct interrupt_info *inti;
+ struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
+ struct kvm_s390_interrupt_info *inti;
inti = kzalloc(sizeof(*inti), GFP_KERNEL);
if (!inti)
@@ -487,9 +480,9 @@ int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code)
int kvm_s390_inject_vm(struct kvm *kvm,
struct kvm_s390_interrupt *s390int)
{
- struct local_interrupt *li;
- struct float_interrupt *fi;
- struct interrupt_info *inti;
+ struct kvm_s390_local_interrupt *li;
+ struct kvm_s390_float_interrupt *fi;
+ struct kvm_s390_interrupt_info *inti;
int sigcpu;
inti = kzalloc(sizeof(*inti), GFP_KERNEL);
@@ -544,8 +537,8 @@ int kvm_s390_inject_vm(struct kvm *kvm,
int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu,
struct kvm_s390_interrupt *s390int)
{
- struct local_interrupt *li;
- struct interrupt_info *inti;
+ struct kvm_s390_local_interrupt *li;
+ struct kvm_s390_interrupt_info *inti;
inti = kzalloc(sizeof(*inti), GFP_KERNEL);
if (!inti)