From: Marc Zyngier <maz@kernel.org>
To: kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org
Cc: Steffen Eiden <seiden@linux.ibm.com>,
Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Oliver Upton <oupton@kernel.org>,
Zenghui Yu <yuzenghui@huawei.com>
Subject: [PATCH 1/5] KVM: arm64: vgic-v3: Make vtr_to_* helpers use architectural field symbols
Date: Mon, 20 Jul 2026 14:22:15 +0100 [thread overview]
Message-ID: <20260720132220.2143486-2-maz@kernel.org> (raw)
In-Reply-To: <20260720132220.2143486-1-maz@kernel.org>
vgic-v3-sr.c still contains some hardcoded constants for some of
the ICH)VTR_EL2 fields. Bring them into the modern world by using
the named symbols from the sysreg file.
Signed-off-by: Marc Zyngier <maz@kernel.org>
---
arch/arm64/kvm/hyp/vgic-v3-sr.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/kvm/hyp/vgic-v3-sr.c b/arch/arm64/kvm/hyp/vgic-v3-sr.c
index c4d2f1feea8b6..8da7a40ced58a 100644
--- a/arch/arm64/kvm/hyp/vgic-v3-sr.c
+++ b/arch/arm64/kvm/hyp/vgic-v3-sr.c
@@ -16,9 +16,9 @@
#include "../../vgic/vgic.h"
-#define vtr_to_max_lr_idx(v) ((v) & 0xf)
-#define vtr_to_nr_pre_bits(v) ((((u32)(v) >> 26) & 7) + 1)
-#define vtr_to_nr_apr_regs(v) (1 << (vtr_to_nr_pre_bits(v) - 5))
+#define vtr_to_max_lr_idx(v) FIELD_GET(ICH_VTR_EL2_ListRegs, (v))
+#define vtr_to_nr_pre_bits(v) (FIELD_GET(ICH_VTR_EL2_PREbits, (v)) + 1)
+#define vtr_to_nr_apr_regs(v) BIT(vtr_to_nr_pre_bits(v) - 5)
u64 __gic_v3_get_lr(unsigned int lr)
{
--
2.47.3
next prev parent reply other threads:[~2026-07-20 13:22 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-20 13:22 [PATCH 0/5] KVM: arm64: Make ICH_VTR_EL2 accesses an inlined literal Marc Zyngier
2026-07-20 13:22 ` Marc Zyngier [this message]
2026-07-20 13:22 ` [PATCH 2/5] KVM: arm64: Add a helper providing an inlined literal value for ICH_VTR_EL2 Marc Zyngier
2026-07-20 13:22 ` [PATCH 2/5] KVM: arm64: Add a helper providing an inlined litteral " Marc Zyngier
2026-07-20 13:22 ` [PATCH 3/5] KVM: arm64: Convert most ICH_VTR_EL2 accesses to inlined literal value Marc Zyngier
2026-07-20 13:22 ` [PATCH 4/5] KVM: arm64: vgic-v3: Simplify initial GICv3 configuration sampling Marc Zyngier
2026-07-20 13:22 ` [PATCH 5/5] KVM: arm64: vgic-v3: Kill kvm_vgic_global_state.ich_vtr_el2 Marc Zyngier
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