From: Ryan Roberts <ryan.roberts@arm.com>
To: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>,
Oliver Upton <oliver.upton@linux.dev>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
James Morse <james.morse@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>,
Ard Biesheuvel <ardb@kernel.org>,
Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>,
linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev
Subject: [PATCH v5 06/12] KVM: arm64: Add new (V)TCR_EL2 field definitions for FEAT_LPA2
Date: Thu, 16 Nov 2023 14:29:25 +0000 [thread overview]
Message-ID: <20231116142931.1675485-7-ryan.roberts@arm.com> (raw)
In-Reply-To: <20231116142931.1675485-1-ryan.roberts@arm.com>
As per Arm ARM (0487I.a), (V)TCR_EL2.DS fields control whether 52 bit
input and output addresses are supported on 4K and 16K page size
configurations when FEAT_LPA2 is known to have been implemented.
This adds these field definitions which will be used by KVM when
FEAT_LPA2 is enabled.
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
---
arch/arm64/include/asm/kvm_arm.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index b85f46a73e21..312cbc300831 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h
@@ -108,6 +108,7 @@
#define HCRX_HOST_FLAGS (HCRX_EL2_MSCEn | HCRX_EL2_TCR2En)
/* TCR_EL2 Registers bits */
+#define TCR_EL2_DS (1UL << 32)
#define TCR_EL2_RES1 ((1U << 31) | (1 << 23))
#define TCR_EL2_TBI (1 << 20)
#define TCR_EL2_PS_SHIFT 16
@@ -122,6 +123,7 @@
TCR_EL2_ORGN0_MASK | TCR_EL2_IRGN0_MASK | TCR_EL2_T0SZ_MASK)
/* VTCR_EL2 Registers bits */
+#define VTCR_EL2_DS TCR_EL2_DS
#define VTCR_EL2_RES1 (1U << 31)
#define VTCR_EL2_HD (1 << 22)
#define VTCR_EL2_HA (1 << 21)
--
2.25.1
next prev parent reply other threads:[~2023-11-16 14:29 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-16 14:29 [PATCH v5 00/12] KVM: arm64: Support FEAT_LPA2 at hyp s1 and vm s2 Ryan Roberts
2023-11-16 14:29 ` [PATCH v5 01/12] arm64/mm: Modify range-based tlbi to decrement scale Ryan Roberts
2023-11-16 14:29 ` [PATCH v5 02/12] arm64/mm: Add lpa2_is_enabled() kvm_lpa2_is_enabled() stubs Ryan Roberts
2023-11-16 14:29 ` [PATCH v5 03/12] arm64/mm: Update tlb invalidation routines for FEAT_LPA2 Ryan Roberts
2023-11-16 14:29 ` [PATCH v5 04/12] arm64: Add ARM64_HAS_LPA2 CPU capability Ryan Roberts
2023-11-22 15:14 ` Marc Zyngier
2023-11-16 14:29 ` [PATCH v5 05/12] arm64/mm: Add FEAT_LPA2 specific ID_AA64MMFR0.TGRAN[2] Ryan Roberts
2023-11-16 14:29 ` Ryan Roberts [this message]
2023-11-16 14:29 ` [PATCH v5 07/12] KVM: arm64: Use LPA2 page-tables for stage2 and hyp stage1 Ryan Roberts
2023-11-21 20:34 ` Oliver Upton
2023-11-22 13:41 ` Ryan Roberts
2023-11-22 15:21 ` Marc Zyngier
2023-11-24 11:49 ` Ryan Roberts
2023-11-27 9:32 ` Marc Zyngier
2023-11-27 9:43 ` Ryan Roberts
2023-11-16 14:29 ` [PATCH v5 08/12] KVM: arm64: Convert translation level parameter to s8 Ryan Roberts
2023-11-16 14:29 ` [PATCH v5 09/12] KVM: arm64: Support up to 5 levels of translation in kvm_pgtable Ryan Roberts
2023-11-16 14:29 ` [PATCH v5 10/12] KVM: arm64: Allow guests with >48-bit IPA size on FEAT_LPA2 systems Ryan Roberts
2023-11-16 14:29 ` [PATCH v5 11/12] KVM: selftests: arm64: Determine max ipa size per-page size Ryan Roberts
2023-11-21 23:27 ` Oliver Upton
2023-11-22 13:47 ` Ryan Roberts
2023-11-21 23:34 ` Oliver Upton
2023-11-22 13:47 ` Ryan Roberts
2023-11-16 14:29 ` [PATCH v5 12/12] KVM: selftests: arm64: Support P52V48 4K and 16K guest_modes Ryan Roberts
2023-11-21 23:38 ` [PATCH v5 00/12] KVM: arm64: Support FEAT_LPA2 at hyp s1 and vm s2 Oliver Upton
2023-11-22 13:37 ` Ryan Roberts
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