[RFC PATCH v4 13/26] KVM: arm64: Make ID registers without id_reg_info writable
From: Reiji Watanabe <hidden>
Date: 2022-01-06 04:34:57
Also in:
kvm, kvmarm
Subsystem:
arm64 port (aarch64 architecture), kernel virtual machine for arm64 (kvm/arm64), the rest · Maintainers:
Catalin Marinas, Will Deacon, Marc Zyngier, Oliver Upton, Linus Torvalds
Make ID registers that don't have id_reg_info writable. Signed-off-by: Reiji Watanabe <redacted> --- 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
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