[RFC PATCH v4 13/26] KVM: arm64: Make ID registers without id_reg_info writable

[Reiji Watanabe]

Make ID registers that don't have id_reg_info writable.

Signed-off-by: Reiji Watanabe <reijiw at google.com>
---
 arch/arm64/kvm/sys_regs.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 1c18a19c5785..ddbeefc3881c 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1859,11 +1859,8 @@ static int __set_id_reg(struct kvm_vcpu *vcpu,
 		/* The value is same as the current value. Nothing to do. */
 		return 0;
 
-	/*
-	 * Don't allow to modify the register's value if the register is raz,
-	 * or the reg doesn't have the id_reg_info.
-	 */
-	if (raz || !GET_ID_REG_INFO(encoding))
+	/* Don't allow to modify the register's value if the register is raz. */
+	if (raz)
 		return -EINVAL;
 
 	/*
-- 
2.34.1.448.ga2b2bfdf31-goog