diff --git a/arch/loongarch/include/asm/kvm_host.h b/arch/loongarch/include/asm/kvm_host.h
index c409ab15bae1..82d2c62416a7 100644
--- a/arch/loongarch/include/asm/kvm_host.h
+++ b/arch/loongarch/include/asm/kvm_host.h
@@ -109,6 +109,10 @@ struct kvm_arch {
 	unsigned int  root_level;
 	spinlock_t    phyid_map_lock;
 	struct kvm_phyid_map  *phyid_map;
+	/* Supported PV features */
+	unsigned long pv_capability;
+	/* Enabled PV features */
+	unsigned long pv_features;
 
 	s64 time_offset;
 	struct kvm_context __percpu *vmcs;
@@ -139,6 +143,11 @@ enum emulation_result {
 #define KVM_LARCH_HWCSR_USABLE	(0x1 << 4)
 #define KVM_LARCH_LBT		(0x1 << 5)
 
+#define LOONGARCH_PV_FEAT_UPDATED		BIT_ULL(63)
+#define LOONGARCH_PV_FEAT_MASK					\
+		(KVM_FEATURE_IPI | KVM_FEATURE_STEAL_TIME |	\
+		 KVM_FEATURE_VIRT_EXTIOI)
+
 struct kvm_vcpu_arch {
 	/*
 	 * Switch pointer-to-function type to unsigned long
diff --git a/arch/loongarch/include/asm/kvm_para.h b/arch/loongarch/include/asm/kvm_para.h
index 335fb86778e2..9814d56b8d0e 100644
--- a/arch/loongarch/include/asm/kvm_para.h
+++ b/arch/loongarch/include/asm/kvm_para.h
@@ -2,6 +2,7 @@
 #ifndef _ASM_LOONGARCH_KVM_PARA_H
 #define _ASM_LOONGARCH_KVM_PARA_H
 
+#include <uapi/asm/kvm_para.h>
 /*
  * Hypercall code field
  */
diff --git a/arch/loongarch/include/asm/loongarch.h b/arch/loongarch/include/asm/loongarch.h
index 04a78010fc72..eb82230f52c3 100644
--- a/arch/loongarch/include/asm/loongarch.h
+++ b/arch/loongarch/include/asm/loongarch.h
@@ -158,19 +158,6 @@
 #define  CPUCFG48_VFPU_CG		BIT(2)
 #define  CPUCFG48_RAM_CG		BIT(3)
 
-/*
- * CPUCFG index area: 0x40000000 -- 0x400000ff
- * SW emulation for KVM hypervirsor
- */
-#define CPUCFG_KVM_BASE			0x40000000
-#define CPUCFG_KVM_SIZE			0x100
-
-#define CPUCFG_KVM_SIG			(CPUCFG_KVM_BASE + 0)
-#define  KVM_SIGNATURE			"KVM\0"
-#define CPUCFG_KVM_FEATURE		(CPUCFG_KVM_BASE + 4)
-#define  KVM_FEATURE_IPI		BIT(1)
-#define  KVM_FEATURE_STEAL_TIME		BIT(2)
-
 #ifndef __ASSEMBLY__
 
 /* CSR */
diff --git a/arch/loongarch/include/uapi/asm/Kbuild b/arch/loongarch/include/uapi/asm/Kbuild
index c6d141d7b7d7..517761419999 100644
--- a/arch/loongarch/include/uapi/asm/Kbuild
+++ b/arch/loongarch/include/uapi/asm/Kbuild
@@ -1,4 +1,2 @@
 # SPDX-License-Identifier: GPL-2.0
 syscall-y += unistd_64.h
-
-generic-y += kvm_para.h
diff --git a/arch/loongarch/include/uapi/asm/kvm.h b/arch/loongarch/include/uapi/asm/kvm.h
index 003fb766c93f..4d56ec3777a0 100644
--- a/arch/loongarch/include/uapi/asm/kvm.h
+++ b/arch/loongarch/include/uapi/asm/kvm.h
@@ -98,6 +98,8 @@ struct kvm_fpu {
 #define  KVM_LOONGARCH_VM_FEAT_X86BT	2
 #define  KVM_LOONGARCH_VM_FEAT_ARMBT	3
 #define  KVM_LOONGARCH_VM_FEAT_MIPSBT	4
+#define  KVM_LOONGARCH_VM_FEAT_PV_IPI		5
+#define  KVM_LOONGARCH_VM_FEAT_PV_STEALTIME	6
 
 /* Device Control API on vcpu fd */
 #define KVM_LOONGARCH_VCPU_CPUCFG	0
diff --git a/arch/loongarch/include/uapi/asm/kvm_para.h b/arch/loongarch/include/uapi/asm/kvm_para.h
new file mode 100644
index 000000000000..a63b67c90240
--- /dev/null
+++ b/arch/loongarch/include/uapi/asm/kvm_para.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _UAPI_ASM_LOONGARCH_KVM_PARA_H
+#define _UAPI_ASM_LOONGARCH_KVM_PARA_H
+
+#include <linux/types.h>
+
+/*
+ * CPUCFG index area: 0x40000000 -- 0x400000ff
+ * SW emulation for KVM hypervirsor
+ */
+#define CPUCFG_KVM_BASE			0x40000000
+#define CPUCFG_KVM_SIZE			0x100
+#define CPUCFG_KVM_SIG			(CPUCFG_KVM_BASE + 0)
+#define  KVM_SIGNATURE			"KVM\0"
+#define CPUCFG_KVM_FEATURE		(CPUCFG_KVM_BASE + 4)
+#define  KVM_FEATURE_IPI		BIT(1)
+#define  KVM_FEATURE_STEAL_TIME		BIT(2)
+/*
+ * BIT 24 - 31 is features configurable by user space vmm
+ * With VIRT_EXTIOI feature, interrupt can route to 256 VCPUs
+ */
+#define  KVM_FEATURE_VIRT_EXTIOI	BIT(24)
+
+#endif /* _UAPI_ASM_LOONGARCH_KVM_PARA_H */
diff --git a/arch/loongarch/kvm/exit.c b/arch/loongarch/kvm/exit.c
index be2c326253a3..e293b95f456a 100644
--- a/arch/loongarch/kvm/exit.c
+++ b/arch/loongarch/kvm/exit.c
@@ -50,9 +50,7 @@ static int kvm_emu_cpucfg(struct kvm_vcpu *vcpu, larch_inst inst)
 		vcpu->arch.gprs[rd] = *(unsigned int *)KVM_SIGNATURE;
 		break;
 	case CPUCFG_KVM_FEATURE:
-		ret = KVM_FEATURE_IPI;
-		if (kvm_pvtime_supported())
-			ret |= KVM_FEATURE_STEAL_TIME;
+		ret = vcpu->kvm->arch.pv_features & LOONGARCH_PV_FEAT_MASK;
 		vcpu->arch.gprs[rd] = ret;
 		break;
 	default:
diff --git a/arch/loongarch/kvm/vcpu.c b/arch/loongarch/kvm/vcpu.c
index b8210442c178..4918bebdf666 100644
--- a/arch/loongarch/kvm/vcpu.c
+++ b/arch/loongarch/kvm/vcpu.c
@@ -793,6 +793,8 @@ static int kvm_loongarch_cpucfg_has_attr(struct kvm_vcpu *vcpu,
 	switch (attr->attr) {
 	case 2:
 		return 0;
+	case CPUCFG_KVM_FEATURE:
+		return 0;
 	default:
 		return -ENXIO;
 	}
@@ -836,9 +838,18 @@ static int kvm_loongarch_cpucfg_get_attr(struct kvm_vcpu *vcpu,
 	uint64_t val;
 	uint64_t __user *uaddr = (uint64_t __user *)attr->addr;
 
-	ret = _kvm_get_cpucfg_mask(attr->attr, &val);
-	if (ret)
-		return ret;
+	switch (attr->attr) {
+	case 0 ... (KVM_MAX_CPUCFG_REGS - 1):
+		ret = _kvm_get_cpucfg_mask(attr->attr, &val);
+		if (ret)
+			return ret;
+		break;
+	case CPUCFG_KVM_FEATURE:
+		val = vcpu->kvm->arch.pv_features & LOONGARCH_PV_FEAT_MASK;
+		break;
+	default:
+		return -ENXIO;
+	}
 
 	put_user(val, uaddr);
 
@@ -884,7 +895,29 @@ static int kvm_loongarch_vcpu_get_attr(struct kvm_vcpu *vcpu,
 static int kvm_loongarch_cpucfg_set_attr(struct kvm_vcpu *vcpu,
 					 struct kvm_device_attr *attr)
 {
-	return -ENXIO;
+	u64 __user *user = (u64 __user *)attr->addr;
+	u64 val, valid;
+	struct kvm *kvm = vcpu->kvm;
+
+	switch (attr->attr) {
+	case CPUCFG_KVM_FEATURE:
+		if (get_user(val, user))
+			return -EFAULT;
+
+		valid = LOONGARCH_PV_FEAT_MASK;
+		if (val & ~valid)
+			return -EINVAL;
+
+		/* All vCPUs need set the same pv features */
+		if ((kvm->arch.pv_features & LOONGARCH_PV_FEAT_UPDATED) &&
+				((kvm->arch.pv_features & valid) != val))
+			return -EINVAL;
+		kvm->arch.pv_features = val | LOONGARCH_PV_FEAT_UPDATED;
+		return 0;
+
+	default:
+		return -ENXIO;
+	}
 }
 
 static int kvm_loongarch_pvtime_set_attr(struct kvm_vcpu *vcpu,
diff --git a/arch/loongarch/kvm/vm.c b/arch/loongarch/kvm/vm.c
index f9604bc2b3ea..855f125a5aaa 100644
--- a/arch/loongarch/kvm/vm.c
+++ b/arch/loongarch/kvm/vm.c
@@ -5,6 +5,7 @@
 
 #include <linux/kvm_host.h>
 #include <asm/kvm_mmu.h>
+#include <asm/kvm_vcpu.h>
 
 const struct _kvm_stats_desc kvm_vm_stats_desc[] = {
 	KVM_GENERIC_VM_STATS(),
@@ -39,6 +40,11 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 	spin_lock_init(&kvm->arch.phyid_map_lock);
 
 	kvm_init_vmcs(kvm);
+	kvm->arch.pv_capability = KVM_FEATURE_IPI;
+	if (kvm_pvtime_supported())
+		kvm->arch.pv_capability |= KVM_FEATURE_STEAL_TIME;
+	/* Enable all pv features by default */
+	kvm->arch.pv_features = kvm->arch.pv_capability;
 	kvm->arch.gpa_size = BIT(cpu_vabits - 1);
 	kvm->arch.root_level = CONFIG_PGTABLE_LEVELS - 1;
 	kvm->arch.invalid_ptes[0] = 0;
@@ -122,6 +128,12 @@ static int kvm_vm_feature_has_attr(struct kvm *kvm, struct kvm_device_attr *attr
 		if (cpu_has_lbt_mips)
 			return 0;
 		return -ENXIO;
+	case KVM_LOONGARCH_VM_FEAT_PV_IPI:
+		return 0;
+	case KVM_LOONGARCH_VM_FEAT_PV_STEALTIME:
+		if (kvm_pvtime_supported())
+			return 0;
+		return -ENXIO;
 	default:
 		return -ENXIO;
 	}
