[PATCH RFC 1/2] riscv/kvm: Fix use VSIP_VALID_MASK mask HIP register

[Yifei Jiang <jiangyifei@xxxxxxxxxx>]

The correct sip/sie 0x222 could mask wrong 0x000 by VSIP_VALID_MASK,
This patch fix it.

Signed-off-by: Yifei Jiang <jiangyifei@xxxxxxxxxx>
Signed-off-by: Yipeng Yin <yinyipeng1@xxxxxxxxxx>
---
 arch/riscv/kvm/vcpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/riscv/kvm/vcpu.c b/arch/riscv/kvm/vcpu.c
index adb0815951aa..2976666e921f 100644
--- a/arch/riscv/kvm/vcpu.c
+++ b/arch/riscv/kvm/vcpu.c
@@ -419,8 +419,8 @@ static int kvm_riscv_vcpu_set_reg_csr(struct kvm_vcpu *vcpu,
 
 	if (reg_num == KVM_REG_RISCV_CSR_REG(sip) ||
 	    reg_num == KVM_REG_RISCV_CSR_REG(sie)) {
-		reg_val = reg_val << VSIP_TO_HVIP_SHIFT;
 		reg_val = reg_val & VSIP_VALID_MASK;
+		reg_val = reg_val << VSIP_TO_HVIP_SHIFT;
 	}
 
 	((unsigned long *)csr)[reg_num] = reg_val;
-- 
2.19.1