diff options
Diffstat (limited to 'arch/s390/kvm/interrupt.c')
| -rw-r--r-- | arch/s390/kvm/interrupt.c | 53 |
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) |