1 files changed, 7 insertions, 13 deletions

diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 8d43cf205d34..40e5857c4b1c 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -47,6 +47,7 @@
 
 #include <asm/reg.h>
 #include <asm/ppc-opcode.h>
+#include <asm/asm-prototypes.h>
 #include <asm/disassemble.h>
 #include <asm/cputable.h>
 #include <asm/cacheflush.h>
@@ -1089,9 +1090,10 @@ static int kvmppc_handle_exit_hv(struct kvm_run *run, struct kvm_vcpu *vcpu,
                 vcpu->stat.ext_intr_exits++;
                 r = RESUME_GUEST;
                 break;
-        /* HMI is hypervisor interrupt and host has handled it. Resume guest.*/
+        /* SR/HMI/PMI are HV interrupts that host has handled. Resume guest.*/
         case BOOK3S_INTERRUPT_HMI:
         case BOOK3S_INTERRUPT_PERFMON:
+        case BOOK3S_INTERRUPT_SYSTEM_RESET:
                 r = RESUME_GUEST;
                 break;
         case BOOK3S_INTERRUPT_MACHINE_CHECK:
@@ -2117,15 +2119,6 @@ static int kvmppc_grab_hwthread(int cpu)
         struct paca_struct *tpaca;
         long timeout = 10000;
 
-        /*
-         * ISA v3.0 idle routines do not set hwthread_state or test
-         * hwthread_req, so they can not grab idle threads.
-         */
-        if (cpu_has_feature(CPU_FTR_ARCH_300)) {
-                WARN(1, "KVM: can not control sibling threads\n");
-                return -EBUSY;
-        }
-
         tpaca = &paca[cpu];
 
         /* Ensure the thread won't go into the kernel if it wakes */
@@ -2160,12 +2153,10 @@ static void kvmppc_release_hwthread(int cpu)
         struct paca_struct *tpaca;
 
         tpaca = &paca[cpu];
+        tpaca->kvm_hstate.hwthread_req = 0;
         tpaca->kvm_hstate.kvm_vcpu = NULL;
         tpaca->kvm_hstate.kvm_vcore = NULL;
         tpaca->kvm_hstate.kvm_split_mode = NULL;
-        if (!cpu_has_feature(CPU_FTR_ARCH_300))
-                tpaca->kvm_hstate.hwthread_req = 0;
-
 }
 
 static void radix_flush_cpu(struct kvm *kvm, int cpu, struct kvm_vcpu *vcpu)
@@ -2615,6 +2606,9 @@ static void set_irq_happened(int trap)
         case BOOK3S_INTERRUPT_HMI:
                 local_paca->irq_happened |= PACA_IRQ_HMI;
                 break;
+        case BOOK3S_INTERRUPT_SYSTEM_RESET:
+                replay_system_reset();
+                break;
         }
 }