diff options
Diffstat (limited to 'arch/loongarch/kvm/exit.c')
| -rw-r--r-- | arch/loongarch/kvm/exit.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/arch/loongarch/kvm/exit.c b/arch/loongarch/kvm/exit.c index 5ace3e8b4e80..43cf34f31c10 100644 --- a/arch/loongarch/kvm/exit.c +++ b/arch/loongarch/kvm/exit.c @@ -760,25 +760,37 @@ static void kvm_handle_service(struct kvm_vcpu *vcpu) static int kvm_handle_hypercall(struct kvm_vcpu *vcpu) { + int ret; larch_inst inst; unsigned int code; inst.word = vcpu->arch.badi; code = inst.reg0i15_format.immediate; - update_pc(&vcpu->arch); + ret = RESUME_GUEST; switch (code) { case KVM_HCALL_SERVICE: vcpu->stat.hypercall_exits++; kvm_handle_service(vcpu); break; + case KVM_HCALL_SWDBG: + /* KVM_HCALL_SWDBG only in effective when SW_BP is enabled */ + if (vcpu->guest_debug & KVM_GUESTDBG_SW_BP_MASK) { + vcpu->run->exit_reason = KVM_EXIT_DEBUG; + ret = RESUME_HOST; + break; + } + fallthrough; default: /* Treat it as noop intruction, only set return value */ kvm_write_reg(vcpu, LOONGARCH_GPR_A0, KVM_HCALL_INVALID_CODE); break; } - return RESUME_GUEST; + if (ret == RESUME_GUEST) + update_pc(&vcpu->arch); + + return ret; } /* |