diff mbox series

[v2,11/14] KVM: arm64: Make ID_AA64MMFR4_EL1.NV_frac writable

Message ID 20250220134907.554085-12-maz@kernel.org (mailing list archive)
State New
Headers show
Series KVM: arm64: NV userspace ABI | expand

Commit Message

Marc Zyngier Feb. 20, 2025, 1:49 p.m. UTC 
We want to make sure that it is possible for userspace to configure
whether recursive NV is possible. Make NV_frac writable for that
purpose.

Signed-off-by: Marc Zyngier <maz@kernel.org>
---
 arch/arm64/kvm/sys_regs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 87f165289fb9f..5de542b045ac8 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -2666,7 +2666,7 @@  static const struct sys_reg_desc sys_reg_descs[] = {
 	ID_WRITABLE(ID_AA64MMFR3_EL1, (ID_AA64MMFR3_EL1_TCRX	|
 				       ID_AA64MMFR3_EL1_S1PIE   |
 				       ID_AA64MMFR3_EL1_S1POE)),
-	ID_SANITISED(ID_AA64MMFR4_EL1),
+	ID_WRITABLE(ID_AA64MMFR4_EL1, ID_AA64MMFR4_EL1_NV_frac),
 	ID_UNALLOCATED(7,5),
 	ID_UNALLOCATED(7,6),
 	ID_UNALLOCATED(7,7),