From: Bibo Mao <maobibo@loongson.cn>
Date: Tue, 18 Mar 2025 08:48:08 +0000 (+0800)
Subject: LoongArch: KVM: Add stub for kvm_arch_vcpu_preempted_in_kernel()
X-Git-Tag: v6.15-rc1~195^2~12^2~2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6a16e448e5515c9580712b47cfe99f091acb07ea;p=thirdparty%2Fkernel%2Flinux.git

LoongArch: KVM: Add stub for kvm_arch_vcpu_preempted_in_kernel()

Pause-Loop Exiting is not supported by LoongArch hardware, nor is pv
spinlock feature. So function kvm_vcpu_on_spin() is not used. Function
kvm_arch_vcpu_preempted_in_kernel() is defined as a stub function here
since it is only called by unused function kvm_vcpu_on_spin().

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
---

diff --git a/arch/loongarch/kvm/vcpu.c b/arch/loongarch/kvm/vcpu.c
index a147290a11e43..66f1e62ff6b8c 100644
--- a/arch/loongarch/kvm/vcpu.c
+++ b/arch/loongarch/kvm/vcpu.c
@@ -364,6 +364,11 @@ bool kvm_arch_vcpu_in_kernel(struct kvm_vcpu *vcpu)
 	return false;
 }
 
+bool kvm_arch_vcpu_preempted_in_kernel(struct kvm_vcpu *vcpu)
+{
+	return false;
+}
+
 vm_fault_t kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf)
 {
 	return VM_FAULT_SIGBUS;