diff --git a/arch/arm/include/asm/kvm_emulate.h b/arch/arm/include/asm/kvm_emulate.h index a464e8d7b6c5..708e4d8a647f 100644 --- a/arch/arm/include/asm/kvm_emulate.h +++ b/arch/arm/include/asm/kvm_emulate.h @@ -157,4 +157,9 @@ static inline u32 kvm_vcpu_hvc_get_imm(struct kvm_vcpu *vcpu) return kvm_vcpu_get_hsr(vcpu) & HSR_HVC_IMM_MASK; } +static inline unsigned long kvm_vcpu_get_mpidr(struct kvm_vcpu *vcpu) +{ + return vcpu->arch.cp15[c0_MPIDR]; +} + #endif /* __ARM_KVM_EMULATE_H__ */ diff --git a/arch/arm/kvm/psci.c b/arch/arm/kvm/psci.c index 86a693a02ba3..311263124acf 100644 --- a/arch/arm/kvm/psci.c +++ b/arch/arm/kvm/psci.c @@ -18,6 +18,7 @@ #include #include +#include #include #include @@ -34,22 +35,30 @@ static void kvm_psci_vcpu_off(struct kvm_vcpu *vcpu) static unsigned long kvm_psci_vcpu_on(struct kvm_vcpu *source_vcpu) { struct kvm *kvm = source_vcpu->kvm; - struct kvm_vcpu *vcpu; + struct kvm_vcpu *vcpu = NULL, *tmp; wait_queue_head_t *wq; unsigned long cpu_id; + unsigned long mpidr; phys_addr_t target_pc; + int i; cpu_id = *vcpu_reg(source_vcpu, 1); if (vcpu_mode_is_32bit(source_vcpu)) cpu_id &= ~((u32) 0); - if (cpu_id >= atomic_read(&kvm->online_vcpus)) + kvm_for_each_vcpu(i, tmp, kvm) { + mpidr = kvm_vcpu_get_mpidr(tmp); + if ((mpidr & MPIDR_HWID_BITMASK) == (cpu_id & MPIDR_HWID_BITMASK)) { + vcpu = tmp; + break; + } + } + + if (!vcpu) return KVM_PSCI_RET_INVAL; target_pc = *vcpu_reg(source_vcpu, 2); - vcpu = kvm_get_vcpu(kvm, cpu_id); - wq = kvm_arch_vcpu_wq(vcpu); if (!waitqueue_active(wq)) return KVM_PSCI_RET_INVAL; diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h index eec073875218..6df93cdc652b 100644 --- a/arch/arm64/include/asm/kvm_emulate.h +++ b/arch/arm64/include/asm/kvm_emulate.h @@ -177,4 +177,9 @@ static inline u8 kvm_vcpu_trap_get_fault(const struct kvm_vcpu *vcpu) return kvm_vcpu_get_hsr(vcpu) & ESR_EL2_FSC_TYPE; } +static inline unsigned long kvm_vcpu_get_mpidr(struct kvm_vcpu *vcpu) +{ + return vcpu_sys_reg(vcpu, MPIDR_EL1); +} + #endif /* __ARM64_KVM_EMULATE_H__ */