From: Steven Price <steven.price@arm.com>
To: kvm@vger.kernel.org, kvmarm@lists.linux.dev
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Marc Zyngier <maz@kernel.org>, Will Deacon <will@kernel.org>,
James Morse <james.morse@arm.com>,
Oliver Upton <oliver.upton@linux.dev>,
Zenghui Yu <yuzenghui@huawei.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Joey Gouly <joey.gouly@arm.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
Christoffer Dall <christoffer.dall@arm.com>,
Fuad Tabba <tabba@google.com>,
linux-coco@lists.linux.dev,
Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>,
Steven Price <steven.price@arm.com>
Subject: [PATCH v2 01/14] arm64: rsi: Add RSI definitions
Date: Fri, 12 Apr 2024 09:42:00 +0100 [thread overview]
Message-ID: <20240412084213.1733764-2-steven.price@arm.com> (raw)
In-Reply-To: <20240412084213.1733764-1-steven.price@arm.com>
From: Suzuki K Poulose <suzuki.poulose@arm.com>
The RMM (Realm Management Monitor) provides functionality that can be
accessed by a realm guest through SMC (Realm Services Interface) calls.
The SMC definitions are based on DEN0137[1] version A-eac5.
[1] https://developer.arm.com/documentation/den0137/latest
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
---
arch/arm64/include/asm/rsi_cmds.h | 47 +++++++++++
arch/arm64/include/asm/rsi_smc.h | 136 ++++++++++++++++++++++++++++++
2 files changed, 183 insertions(+)
create mode 100644 arch/arm64/include/asm/rsi_cmds.h
create mode 100644 arch/arm64/include/asm/rsi_smc.h
diff --git a/arch/arm64/include/asm/rsi_cmds.h b/arch/arm64/include/asm/rsi_cmds.h
new file mode 100644
index 000000000000..458fb58c4251
--- /dev/null
+++ b/arch/arm64/include/asm/rsi_cmds.h
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2023 ARM Ltd.
+ */
+
+#ifndef __ASM_RSI_CMDS_H
+#define __ASM_RSI_CMDS_H
+
+#include <linux/arm-smccc.h>
+
+#include <asm/rsi_smc.h>
+
+static inline void invoke_rsi_fn_smc_with_res(unsigned long function_id,
+ unsigned long arg0,
+ unsigned long arg1,
+ unsigned long arg2,
+ unsigned long arg3,
+ struct arm_smccc_res *res)
+{
+ arm_smccc_smc(function_id, arg0, arg1, arg2, arg3, 0, 0, 0, res);
+}
+
+static inline unsigned long rsi_get_version(unsigned long req,
+ unsigned long *out_lower,
+ unsigned long *out_higher)
+{
+ struct arm_smccc_res res;
+
+ invoke_rsi_fn_smc_with_res(SMC_RSI_ABI_VERSION, req, 0, 0, 0, &res);
+
+ if (out_lower)
+ *out_lower = res.a1;
+ if (out_higher)
+ *out_higher = res.a2;
+
+ return res.a0;
+}
+
+static inline unsigned long rsi_get_realm_config(struct realm_config *cfg)
+{
+ struct arm_smccc_res res;
+
+ invoke_rsi_fn_smc_with_res(SMC_RSI_REALM_CONFIG, virt_to_phys(cfg), 0, 0, 0, &res);
+ return res.a0;
+}
+
+#endif
diff --git a/arch/arm64/include/asm/rsi_smc.h b/arch/arm64/include/asm/rsi_smc.h
new file mode 100644
index 000000000000..c2c9a3dfed48
--- /dev/null
+++ b/arch/arm64/include/asm/rsi_smc.h
@@ -0,0 +1,136 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2023 ARM Ltd.
+ */
+
+#ifndef __SMC_RSI_H_
+#define __SMC_RSI_H_
+
+/*
+ * This file describes the Realm Services Interface (RSI) Application Binary
+ * Interface (ABI) for SMC calls made from within the Realm to the RMM and
+ * serviced by the RMM.
+ */
+
+#define SMC_RSI_CALL_BASE 0xC4000000
+
+/*
+ * The major version number of the RSI implementation. Increase this whenever
+ * the binary format or semantics of the SMC calls change.
+ */
+#define RSI_ABI_VERSION_MAJOR 1
+
+/*
+ * The minor version number of the RSI implementation. Increase this when
+ * a bug is fixed, or a feature is added without breaking binary compatibility.
+ */
+#define RSI_ABI_VERSION_MINOR 0
+
+#define RSI_ABI_VERSION ((RSI_ABI_VERSION_MAJOR << 16) | \
+ RSI_ABI_VERSION_MINOR)
+
+#define RSI_ABI_VERSION_GET_MAJOR(_version) ((_version) >> 16)
+#define RSI_ABI_VERSION_GET_MINOR(_version) ((_version) & 0xFFFF)
+
+#define RSI_SUCCESS 0
+#define RSI_ERROR_INPUT 1
+#define RSI_ERROR_STATE 2
+#define RSI_INCOMPLETE 3
+
+#define SMC_RSI_FID(_x) (SMC_RSI_CALL_BASE + (_x))
+
+#define SMC_RSI_ABI_VERSION SMC_RSI_FID(0x190)
+
+/*
+ * arg1 == Challenge value, bytes: 0 - 7
+ * arg2 == Challenge value, bytes: 7 - 15
+ * arg3 == Challenge value, bytes: 16 - 23
+ * arg4 == Challenge value, bytes: 24 - 31
+ * arg5 == Challenge value, bytes: 32 - 39
+ * arg6 == Challenge value, bytes: 40 - 47
+ * arg7 == Challenge value, bytes: 48 - 55
+ * arg8 == Challenge value, bytes: 56 - 63
+ * ret0 == Status / error
+ * ret1 == Upper bound of token size in bytes
+ */
+#define SMC_RSI_ATTESTATION_TOKEN_INIT SMC_RSI_FID(0x194)
+
+/*
+ * arg1 == The IPA of token buffer
+ * arg2 == Offset within the granule of the token buffer
+ * arg3 == Size of the granule buffer
+ * ret0 == Status / error
+ * ret1 == Length of token bytes copied to the granule buffer
+ */
+#define SMC_RSI_ATTESTATION_TOKEN_CONTINUE SMC_RSI_FID(0x195)
+
+/*
+ * arg1 == Index, which measurements slot to extend
+ * arg2 == Size of realm measurement in bytes, max 64 bytes
+ * arg3 == Measurement value, bytes: 0 - 7
+ * arg4 == Measurement value, bytes: 7 - 15
+ * arg5 == Measurement value, bytes: 16 - 23
+ * arg6 == Measurement value, bytes: 24 - 31
+ * arg7 == Measurement value, bytes: 32 - 39
+ * arg8 == Measurement value, bytes: 40 - 47
+ * arg9 == Measurement value, bytes: 48 - 55
+ * arg10 == Measurement value, bytes: 56 - 63
+ * ret0 == Status / error
+ */
+#define SMC_RSI_MEASUREMENT_EXTEND SMC_RSI_FID(0x193)
+
+/*
+ * arg1 == Index, which measurements slot to read
+ * ret0 == Status / error
+ * ret1 == Measurement value, bytes: 0 - 7
+ * ret2 == Measurement value, bytes: 7 - 15
+ * ret3 == Measurement value, bytes: 16 - 23
+ * ret4 == Measurement value, bytes: 24 - 31
+ * ret5 == Measurement value, bytes: 32 - 39
+ * ret6 == Measurement value, bytes: 40 - 47
+ * ret7 == Measurement value, bytes: 48 - 55
+ * ret8 == Measurement value, bytes: 56 - 63
+ */
+#define SMC_RSI_MEASUREMENT_READ SMC_RSI_FID(0x192)
+
+#ifndef __ASSEMBLY__
+
+struct realm_config {
+ unsigned long ipa_bits; /* Width of IPA in bits */
+};
+
+#endif /* __ASSEMBLY__ */
+
+/*
+ * arg1 == struct realm_config addr
+ * ret0 == Status / error
+ */
+#define SMC_RSI_REALM_CONFIG SMC_RSI_FID(0x196)
+
+/*
+ * arg1 == Base IPA address of target region
+ * arg2 == Top of the region
+ * arg3 == RIPAS value
+ * arg4 == flags
+ * ret0 == Status / error
+ * ret1 == Top of modified IPA range
+ */
+#define SMC_RSI_IPA_STATE_SET SMC_RSI_FID(0x197)
+
+#define RSI_NO_CHANGE_DESTROYED 0
+#define RSI_CHANGE_DESTROYED 1
+
+/*
+ * arg1 == IPA of target page
+ * ret0 == Status / error
+ * ret1 == RIPAS value
+ */
+#define SMC_RSI_IPA_STATE_GET SMC_RSI_FID(0x198)
+
+/*
+ * arg1 == IPA of host call structure
+ * ret0 == Status / error
+ */
+#define SMC_RSI_HOST_CALL SMC_RSI_FID(0x199)
+
+#endif /* __SMC_RSI_H_ */
--
2.34.1
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next prev parent reply other threads:[~2024-04-12 8:42 UTC|newest]
Thread overview: 135+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-12 8:40 [v2] Support for Arm CCA VMs on Linux Steven Price
2024-04-11 18:54 ` Itaru Kitayama
2024-04-15 8:14 ` Steven Price
2024-06-01 20:40 ` Jason Gunthorpe
2024-04-12 8:41 ` [PATCH v2 00/14] arm64: Support for running as a guest in Arm CCA Steven Price
2024-04-12 8:42 ` Steven Price [this message]
2024-04-12 8:42 ` [PATCH v2 02/14] arm64: Detect if in a realm and set RIPAS RAM Steven Price
2024-05-10 17:35 ` Catalin Marinas
2024-05-14 10:18 ` Suzuki K Poulose
2024-05-16 14:32 ` Catalin Marinas
2024-05-15 15:03 ` Steven Price
2024-04-12 8:42 ` [PATCH v2 03/14] arm64: realm: Query IPA size from the RMM Steven Price
2024-05-13 14:03 ` Catalin Marinas
2024-05-16 15:13 ` Steven Price
2024-04-12 8:42 ` [PATCH v2 04/14] arm64: Mark all I/O as non-secure shared Steven Price
2024-04-12 8:42 ` [PATCH v2 05/14] fixmap: Allow architecture overriding set_fixmap_io Steven Price
2024-04-12 8:42 ` [PATCH v2 06/14] arm64: Override set_fixmap_io Steven Price
2024-05-13 16:14 ` Catalin Marinas
2024-05-14 10:21 ` Suzuki K Poulose
2024-04-12 8:42 ` [PATCH v2 07/14] arm64: Make the PHYS_MASK_SHIFT dynamic Steven Price
2024-05-13 16:38 ` Catalin Marinas
2024-05-16 15:34 ` Steven Price
2024-04-12 8:42 ` [PATCH v2 08/14] arm64: Enforce bounce buffers for realm DMA Steven Price
2024-05-13 16:56 ` Catalin Marinas
2024-04-12 8:42 ` [PATCH v2 09/14] arm64: Enable memory encrypt for Realms Steven Price
2024-04-15 3:13 ` kernel test robot
2024-04-25 13:42 ` Suzuki K Poulose
2024-04-25 15:52 ` Steven Price
2024-04-25 16:29 ` Suzuki K Poulose
2024-04-25 18:16 ` Emanuele Rocca
2024-05-14 18:00 ` Catalin Marinas
2024-05-15 10:47 ` Suzuki K Poulose
2024-05-16 7:48 ` Catalin Marinas
2024-05-16 9:06 ` Suzuki K Poulose
2024-05-20 16:53 ` Catalin Marinas
2024-05-20 20:32 ` Michael Kelley
2024-05-21 10:14 ` Catalin Marinas
2024-05-21 15:58 ` Michael Kelley
2024-04-12 8:42 ` [PATCH v2 10/14] arm64: Force device mappings to be non-secure shared Steven Price
2024-05-15 9:01 ` Catalin Marinas
2024-05-15 11:00 ` Suzuki K Poulose
2024-05-17 9:34 ` Catalin Marinas
2024-04-12 8:42 ` [PATCH v2 11/14] efi: arm64: Map Device with Prot Shared Steven Price
2024-04-12 8:42 ` [PATCH v2 12/14] arm64: realm: Support nonsecure ITS emulation shared Steven Price
2024-05-15 11:01 ` Catalin Marinas
2024-05-22 15:52 ` Steven Price
2024-05-22 17:05 ` Catalin Marinas
2024-05-23 9:57 ` Steven Price
2024-04-12 8:42 ` [PATCH v2 13/14] arm64: rsi: Interfaces to query attestation token Steven Price
2024-05-15 11:10 ` Catalin Marinas
2024-05-22 15:52 ` Steven Price
2024-05-31 16:29 ` Suzuki K Poulose
2024-04-12 8:42 ` [PATCH v2 14/14] virt: arm-cca-guest: TSM_REPORT support for realms Steven Price
2024-04-24 13:06 ` Thomas Fossati
2024-04-24 13:27 ` Suzuki K Poulose
2024-04-24 13:19 ` Suzuki K Poulose
2024-04-12 8:42 ` [PATCH v2 00/43] arm64: Support for Arm CCA in KVM Steven Price
2024-04-12 8:42 ` [PATCH v2 01/43] KVM: Prepare for handling only shared mappings in mmu_notifier events Steven Price
2024-04-25 9:48 ` Fuad Tabba
2024-04-25 15:58 ` Steven Price
2024-04-25 22:56 ` Sean Christopherson
2024-04-12 8:42 ` [PATCH v2 02/43] kvm: arm64: pgtable: Track the number of pages in the entry level Steven Price
2024-04-12 8:42 ` [PATCH v2 03/43] kvm: arm64: Include kvm_emulate.h in kvm/arm_psci.h Steven Price
2024-04-12 8:42 ` [PATCH v2 04/43] arm64: RME: Handle Granule Protection Faults (GPFs) Steven Price
2024-04-16 11:17 ` Suzuki K Poulose
2024-04-18 13:17 ` Steven Price
2024-04-12 8:42 ` [PATCH v2 05/43] arm64: RME: Add SMC definitions for calling the RMM Steven Price
2024-04-16 12:38 ` Suzuki K Poulose
2024-04-18 13:17 ` Steven Price
2024-04-12 8:42 ` [PATCH v2 06/43] arm64: RME: Add wrappers for RMI calls Steven Price
2024-04-16 13:14 ` Suzuki K Poulose
2024-04-19 11:18 ` Steven Price
2024-04-12 8:42 ` [PATCH v2 07/43] arm64: RME: Check for RME support at KVM init Steven Price
2024-04-16 13:30 ` Suzuki K Poulose
2024-04-22 15:39 ` Steven Price
2024-04-12 8:42 ` [PATCH v2 08/43] arm64: RME: Define the user ABI Steven Price
2024-04-12 8:42 ` [PATCH v2 09/43] arm64: RME: ioctls to create and configure realms Steven Price
2024-04-17 9:51 ` Suzuki K Poulose
2024-04-22 16:33 ` Steven Price
2024-04-18 16:04 ` Suzuki K Poulose
2024-04-12 8:42 ` [PATCH v2 10/43] kvm: arm64: Expose debug HW register numbers for Realm Steven Price
2024-04-12 8:42 ` [PATCH v2 11/43] arm64: kvm: Allow passing machine type in KVM creation Steven Price
2024-04-17 10:20 ` Suzuki K Poulose
2024-04-12 8:42 ` [PATCH v2 12/43] arm64: RME: Keep a spare page delegated to the RMM Steven Price
2024-04-17 10:19 ` Suzuki K Poulose
2024-04-12 8:42 ` [PATCH v2 13/43] arm64: RME: RTT handling Steven Price
2024-04-17 13:37 ` Suzuki K Poulose
2024-04-24 10:59 ` Steven Price
2024-04-12 8:42 ` [PATCH v2 14/43] arm64: RME: Allocate/free RECs to match vCPUs Steven Price
2024-04-18 9:23 ` Suzuki K Poulose
2024-04-12 8:42 ` [PATCH v2 15/43] arm64: RME: Support for the VGIC in realms Steven Price
2024-04-12 8:42 ` [PATCH v2 16/43] KVM: arm64: Support timers in realm RECs Steven Price
2024-04-18 9:30 ` Suzuki K Poulose
2024-04-12 8:42 ` [PATCH v2 17/43] arm64: RME: Allow VMM to set RIPAS Steven Price
2024-04-19 9:34 ` Suzuki K Poulose
2024-04-19 10:20 ` Suzuki K Poulose
2024-05-01 15:47 ` Steven Price
2024-05-02 10:16 ` Suzuki K Poulose
2024-04-25 9:53 ` Fuad Tabba
2024-05-01 14:27 ` Jean-Philippe Brucker
2024-05-01 14:56 ` Suzuki K Poulose
2024-04-12 8:42 ` [PATCH v2 18/43] arm64: RME: Handle realm enter/exit Steven Price
2024-04-19 13:00 ` Suzuki K Poulose
2024-04-12 8:42 ` [PATCH v2 19/43] KVM: arm64: Handle realm MMIO emulation Steven Price
2024-04-12 8:42 ` [PATCH v2 20/43] arm64: RME: Allow populating initial contents Steven Price
2024-04-19 13:17 ` Suzuki K Poulose
2024-04-12 8:42 ` [PATCH v2 21/43] arm64: RME: Runtime faulting of memory Steven Price
2024-04-25 10:43 ` Fuad Tabba
2024-05-31 16:03 ` Steven Price
2024-04-12 8:42 ` [PATCH v2 22/43] KVM: arm64: Handle realm VCPU load Steven Price
2024-04-12 8:42 ` [PATCH v2 23/43] KVM: arm64: Validate register access for a Realm VM Steven Price
2024-04-12 8:42 ` [PATCH v2 24/43] KVM: arm64: Handle Realm PSCI requests Steven Price
2024-04-12 8:42 ` [PATCH v2 25/43] KVM: arm64: WARN on injected undef exceptions Steven Price
2024-04-12 8:42 ` [PATCH v2 26/43] arm64: Don't expose stolen time for realm guests Steven Price
2024-04-12 8:42 ` [PATCH v2 27/43] arm64: rme: allow userspace to inject aborts Steven Price
2024-04-12 8:42 ` [PATCH v2 28/43] arm64: rme: support RSI_HOST_CALL Steven Price
2024-04-12 8:42 ` [PATCH v2 29/43] arm64: rme: Allow checking SVE on VM instance Steven Price
2024-04-12 8:42 ` [PATCH v2 30/43] arm64: RME: Always use 4k pages for realms Steven Price
2024-04-12 8:42 ` [PATCH v2 31/43] arm64: rme: Prevent Device mappings for Realms Steven Price
2024-04-12 8:42 ` [PATCH v2 32/43] arm_pmu: Provide a mechanism for disabling the physical IRQ Steven Price
2024-04-12 8:42 ` [PATCH v2 33/43] arm64: rme: Enable PMU support with a realm guest Steven Price
2024-04-13 23:44 ` kernel test robot
2024-04-18 16:06 ` Suzuki K Poulose
2024-04-12 8:43 ` [PATCH v2 34/43] kvm: rme: Hide KVM_CAP_READONLY_MEM for realm guests Steven Price
2024-04-12 8:43 ` [PATCH v2 35/43] arm64: RME: Propagate number of breakpoints and watchpoints to userspace Steven Price
2024-04-12 8:43 ` [PATCH v2 36/43] arm64: RME: Set breakpoint parameters through SET_ONE_REG Steven Price
2024-04-12 8:43 ` [PATCH v2 37/43] arm64: RME: Initialize PMCR.N with number counter supported by RMM Steven Price
2024-04-12 8:43 ` [PATCH v2 38/43] arm64: RME: Propagate max SVE vector length from RMM Steven Price
2024-04-12 8:43 ` [PATCH v2 39/43] arm64: RME: Configure max SVE vector length for a Realm Steven Price
2024-04-12 8:43 ` [PATCH v2 40/43] arm64: RME: Provide register list for unfinalized RME RECs Steven Price
2024-04-12 8:43 ` [PATCH v2 41/43] arm64: RME: Provide accurate register list Steven Price
2024-04-12 8:43 ` [PATCH v2 42/43] arm64: kvm: Expose support for private memory Steven Price
2024-04-25 14:44 ` Fuad Tabba
2024-04-12 8:43 ` [PATCH v2 43/43] KVM: arm64: Allow activating realms Steven Price
2024-04-12 16:52 ` [v2] Support for Arm CCA VMs on Linux Jean-Philippe Brucker
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