[PATCH v3 6/8] RISC-V: KVM: Delegate SPELP bit to VS/VU mode if landing pad is enabled.

[Inochi Amaoto]

Delegate the newly added SPELP bit from Zicfilp extension to VS/VU mode
if it enables landing pad support.

Signed-off-by: Inochi Amaoto <inochiama at gmail.com>
---
 arch/riscv/kvm/vcpu_exit.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/riscv/kvm/vcpu_exit.c b/arch/riscv/kvm/vcpu_exit.c
index 12eebeabdf14..61305da5256d 100644
--- a/arch/riscv/kvm/vcpu_exit.c
+++ b/arch/riscv/kvm/vcpu_exit.c
@@ -154,6 +154,12 @@ void kvm_riscv_vcpu_trap_redirect(struct kvm_vcpu *vcpu,
 	/* Clear Guest SSTATUS.SIE bit */
 	vsstatus &= ~SR_SIE;
 
+	/* Change Guest SSTATUS.SPELP bit */
+	if (vcpu->arch.cfg.henvcfg & ENVCFG_LPE) {
+		vsstatus &= ~SR_SPELP;
+		vsstatus |= vcpu->arch.guest_context.sstatus & SR_SPELP;
+	}
+
 	/* Update Guest SSTATUS */
 	ncsr_write(CSR_VSSTATUS, vsstatus);
 
-- 
2.54.0