diff --git a/arch/loongarch/kvm/intc/ipi.c b/arch/loongarch/kvm/intc/ipi.c
index d70bf415c7fc..80f02c2385bb 100644
--- a/arch/loongarch/kvm/intc/ipi.c
+++ b/arch/loongarch/kvm/intc/ipi.c
@@ -181,8 +181,13 @@ static int loongarch_ipi_readl(struct kvm_vcpu *vcpu, gpa_t addr, int len, void
 	uint32_t offset;
 	uint64_t res = 0;
 
-	offset = (uint32_t)(addr & 0x1ff);
-	WARN_ON_ONCE(offset & (len - 1));
+	if (addr & (len - 1)) {
+		*(uint64_t *)val = res;
+		kvm_pr_unimpl("%s: ipi not aligned addr %llx len %d\n", __func__, addr, len);
+		return 0;
+	}
+
+	offset = addr - IOCSR_IPI_BASE;
 
 	switch (offset) {
 	case IOCSR_IPI_STATUS:
@@ -199,11 +204,6 @@ static int loongarch_ipi_readl(struct kvm_vcpu *vcpu, gpa_t addr, int len, void
 	case IOCSR_IPI_CLEAR:
 		break;
 	case IOCSR_IPI_BUF_20 ... IOCSR_IPI_BUF_38 + 7:
-		if (offset + len > IOCSR_IPI_BUF_38 + 8) {
-			kvm_err("%s: invalid offset or len: offset = %d, len = %d\n",
-				__func__, offset, len);
-			break;
-		}
 		res = read_mailbox(vcpu, offset, len);
 		break;
 	default:
@@ -222,8 +222,12 @@ static int loongarch_ipi_writel(struct kvm_vcpu *vcpu, gpa_t addr, int len, cons
 
 	data = *(uint64_t *)val;
 
-	offset = (uint32_t)(addr & 0x1ff);
-	WARN_ON_ONCE(offset & (len - 1));
+	if (addr & (len - 1)) {
+		kvm_pr_unimpl("%s: ipi not aligned addr %llx len %d\n", __func__, addr, len);
+		return 0;
+	}
+
+	offset = addr - IOCSR_IPI_BASE;
 
 	switch (offset) {
 	case IOCSR_IPI_STATUS: