From: Oliver Upton <oliver.upton@linux.dev>
To: kvmarm@lists.cs.columbia.edu
Cc: kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
maz@kernel.org, james.morse@arm.com, alexandru.elisei@arm.com,
suzuki.poulose@arm.com, will@kernel.org,
Oliver Upton <oliver.upton@linux.dev>
Subject: [PATCH 3/6] KVM: arm64: Spin off helper for calling visibility hook
Date: Wed, 17 Aug 2022 21:48:15 +0000 [thread overview]
Message-ID: <20220817214818.3243383-4-oliver.upton@linux.dev> (raw)
In-Reply-To: <20220817214818.3243383-1-oliver.upton@linux.dev>
No functional change intended.
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
---
arch/arm64/kvm/sys_regs.h | 19 +++++++++++--------
1 file changed, 11 insertions(+), 8 deletions(-)
diff --git a/arch/arm64/kvm/sys_regs.h b/arch/arm64/kvm/sys_regs.h
index a8c4cc32eb9a..e78b51059622 100644
--- a/arch/arm64/kvm/sys_regs.h
+++ b/arch/arm64/kvm/sys_regs.h
@@ -136,22 +136,25 @@ static inline void reset_val(struct kvm_vcpu *vcpu, const struct sys_reg_desc *r
__vcpu_sys_reg(vcpu, r->reg) = r->val;
}
-static inline bool sysreg_hidden(const struct kvm_vcpu *vcpu,
- const struct sys_reg_desc *r)
+static inline unsigned int sysreg_visibility(const struct kvm_vcpu *vcpu,
+ const struct sys_reg_desc *r)
{
if (likely(!r->visibility))
- return false;
+ return 0;
- return r->visibility(vcpu, r) & REG_HIDDEN;
+ return r->visibility(vcpu, r);
+}
+
+static inline bool sysreg_hidden(const struct kvm_vcpu *vcpu,
+ const struct sys_reg_desc *r)
+{
+ return sysreg_visibility(vcpu, r) & REG_HIDDEN;
}
static inline bool sysreg_visible_as_raz(const struct kvm_vcpu *vcpu,
const struct sys_reg_desc *r)
{
- if (likely(!r->visibility))
- return false;
-
- return r->visibility(vcpu, r) & REG_RAZ;
+ return sysreg_visibility(vcpu, r) & REG_RAZ;
}
static inline int cmp_sys_reg(const struct sys_reg_desc *i1,
--
2.37.1.595.g718a3a8f04-goog
next prev parent reply other threads:[~2022-08-17 21:49 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-17 21:48 [PATCH 0/6] KVM: arm64: Treat 32bit ID registers as RAZ/WI on 64bit-only system Oliver Upton
2022-08-17 21:48 ` [PATCH 1/6] KVM: arm64: Use visibility hook to treat ID regs as RAZ Oliver Upton
2022-08-30 4:54 ` Reiji Watanabe
2022-08-17 21:48 ` [PATCH 2/6] KVM: arm64: Remove internal accessor helpers for id regs Oliver Upton
2022-08-30 5:45 ` Reiji Watanabe
2022-08-30 17:45 ` Oliver Upton
2022-08-17 21:48 ` Oliver Upton [this message]
2022-08-30 6:01 ` [PATCH 3/6] KVM: arm64: Spin off helper for calling visibility hook Reiji Watanabe
2022-08-17 21:48 ` [PATCH 4/6] KVM: arm64: Add a visibility bit to ignore user writes Oliver Upton
2022-08-31 3:29 ` Reiji Watanabe
2022-08-31 14:42 ` Oliver Upton
2022-09-01 4:57 ` Reiji Watanabe
2022-08-17 21:48 ` [PATCH 5/6] KVM: arm64: Treat 32bit ID registers as RAZ/WI on 64bit-only system Oliver Upton
2022-08-23 17:05 ` Marc Zyngier
2022-08-23 17:27 ` Oliver Upton
2022-08-17 21:48 ` [PATCH 6/6] KVM: selftests: Add test for RAZ/WI AArch32 ID registers Oliver Upton
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