From patchwork Fri Apr 12 08:42:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steven Price X-Patchwork-Id: 13627190 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 2D4C25FB87; Fri, 12 Apr 2024 08:43:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712911411; cv=none; b=WNq2Z1SWhWwPZgBV6Cj1qOp3ZoS77XBA4ek7jAxYXrgXSPgFSKxLb8OZpXDxaPcX7fR6Yz37+ddmz1QA8RCLz9WPwRo6nTVUYQRJZAHsyv2gLZkIcEEHX0+QidOA3Rg9YDJjFuOQq+mLkvZT/4XDBn4srYhS71IC8W3t6VJ0Y/Y= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712911411; c=relaxed/simple; bh=+dd+l+swPlNlnu6gX2GSi5IsDD824Q+Brl1oxFr+AQ4=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=gAFUWG3tFlVtzftlpkYuW3/yzdJZa+nY33RIdcgZlBYxKtTv5nkAZaFj8xxOaH7O+ILl8SMX+bNKS4zy4WvJwzQVtHujF4Dbe/4E3njK2NWfU6mpt/d/dOj4TIwoz8dyv2gfZM3Wkn+jkD28cMrEFK8kzdC7EHwEYOzh8aU5WCk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 20437339; Fri, 12 Apr 2024 01:43:59 -0700 (PDT) Received: from e112269-lin.cambridge.arm.com (e112269-lin.cambridge.arm.com [10.1.194.51]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 9E8063F6C4; Fri, 12 Apr 2024 01:43:27 -0700 (PDT) From: Steven Price To: kvm@vger.kernel.org, kvmarm@lists.linux.dev Cc: Steven Price , Catalin Marinas , Marc Zyngier , Will Deacon , James Morse , Oliver Upton , Suzuki K Poulose , Zenghui Yu , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Joey Gouly , Alexandru Elisei , Christoffer Dall , Fuad Tabba , linux-coco@lists.linux.dev, Ganapatrao Kulkarni Subject: [PATCH v2 05/43] arm64: RME: Add SMC definitions for calling the RMM Date: Fri, 12 Apr 2024 09:42:31 +0100 Message-Id: <20240412084309.1733783-6-steven.price@arm.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240412084309.1733783-1-steven.price@arm.com> References: <20240412084056.1733704-1-steven.price@arm.com> <20240412084309.1733783-1-steven.price@arm.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The RMM (Realm Management Monitor) provides functionality that can be accessed by SMC calls from the host. The SMC definitions are based on DEN0137[1] version 1.0-eac5 [1] https://developer.arm.com/documentation/den0137/1-0eac5/ Signed-off-by: Steven Price --- arch/arm64/include/asm/rmi_smc.h | 250 +++++++++++++++++++++++++++++++ 1 file changed, 250 insertions(+) create mode 100644 arch/arm64/include/asm/rmi_smc.h diff --git a/arch/arm64/include/asm/rmi_smc.h b/arch/arm64/include/asm/rmi_smc.h new file mode 100644 index 000000000000..c205efdb18d8 --- /dev/null +++ b/arch/arm64/include/asm/rmi_smc.h @@ -0,0 +1,250 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2023 ARM Ltd. + * + * The values and structures in this file are from the Realm Management Monitor + * specification (DEN0137) version A-bet0: + * https://developer.arm.com/documentation/den0137/1-0bet0/ + */ + +#ifndef __ASM_RME_SMC_H +#define __ASM_RME_SMC_H + +#include + +#define SMC_RxI_CALL(func) \ + ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ + ARM_SMCCC_SMC_64, \ + ARM_SMCCC_OWNER_STANDARD, \ + (func)) + +#define SMC_RMI_DATA_CREATE SMC_RxI_CALL(0x0153) +#define SMC_RMI_DATA_CREATE_UNKNOWN SMC_RxI_CALL(0x0154) +#define SMC_RMI_DATA_DESTROY SMC_RxI_CALL(0x0155) +#define SMC_RMI_FEATURES SMC_RxI_CALL(0x0165) +#define SMC_RMI_GRANULE_DELEGATE SMC_RxI_CALL(0x0151) +#define SMC_RMI_GRANULE_UNDELEGATE SMC_RxI_CALL(0x0152) +#define SMC_RMI_PSCI_COMPLETE SMC_RxI_CALL(0x0164) +#define SMC_RMI_REALM_ACTIVATE SMC_RxI_CALL(0x0157) +#define SMC_RMI_REALM_CREATE SMC_RxI_CALL(0x0158) +#define SMC_RMI_REALM_DESTROY SMC_RxI_CALL(0x0159) +#define SMC_RMI_REC_AUX_COUNT SMC_RxI_CALL(0x0167) +#define SMC_RMI_REC_CREATE SMC_RxI_CALL(0x015a) +#define SMC_RMI_REC_DESTROY SMC_RxI_CALL(0x015b) +#define SMC_RMI_REC_ENTER SMC_RxI_CALL(0x015c) +#define SMC_RMI_RTT_CREATE SMC_RxI_CALL(0x015d) +#define SMC_RMI_RTT_DESTROY SMC_RxI_CALL(0x015e) +#define SMC_RMI_RTT_FOLD SMC_RxI_CALL(0x0166) +#define SMC_RMI_RTT_INIT_RIPAS SMC_RxI_CALL(0x0168) +#define SMC_RMI_RTT_MAP_UNPROTECTED SMC_RxI_CALL(0x015f) +#define SMC_RMI_RTT_READ_ENTRY SMC_RxI_CALL(0x0161) +#define SMC_RMI_RTT_SET_RIPAS SMC_RxI_CALL(0x0169) +#define SMC_RMI_RTT_UNMAP_UNPROTECTED SMC_RxI_CALL(0x0162) +#define SMC_RMI_VERSION SMC_RxI_CALL(0x0150) + +#define RMI_ABI_MAJOR_VERSION 1 +#define RMI_ABI_MINOR_VERSION 0 + +#define RMI_UNASSIGNED 0 +#define RMI_ASSIGNED 1 +#define RMI_TABLE 2 + +#define RMI_ABI_VERSION_GET_MAJOR(version) ((version) >> 16) +#define RMI_ABI_VERSION_GET_MINOR(version) ((version) & 0xFFFF) +#define RMI_ABI_VERSION(major, minor) (((major) << 16) | (minor)) + +#define RMI_RETURN_STATUS(ret) ((ret) & 0xFF) +#define RMI_RETURN_INDEX(ret) (((ret) >> 8) & 0xFF) + +#define RMI_SUCCESS 0 +#define RMI_ERROR_INPUT 1 +#define RMI_ERROR_REALM 2 +#define RMI_ERROR_REC 3 +#define RMI_ERROR_RTT 4 + +#define RMI_EMPTY 0 +#define RMI_RAM 1 +#define RMI_DESTROYED 2 + +#define RMI_NO_MEASURE_CONTENT 0 +#define RMI_MEASURE_CONTENT 1 + +#define RMI_FEATURE_REGISTER_0_S2SZ GENMASK(7, 0) +#define RMI_FEATURE_REGISTER_0_LPA2 BIT(8) +#define RMI_FEATURE_REGISTER_0_SVE_EN BIT(9) +#define RMI_FEATURE_REGISTER_0_SVE_VL GENMASK(13, 10) +#define RMI_FEATURE_REGISTER_0_NUM_BPS GENMASK(17, 14) +#define RMI_FEATURE_REGISTER_0_NUM_WPS GENMASK(21, 18) +#define RMI_FEATURE_REGISTER_0_PMU_EN BIT(22) +#define RMI_FEATURE_REGISTER_0_PMU_NUM_CTRS GENMASK(27, 23) +#define RMI_FEATURE_REGISTER_0_HASH_SHA_256 BIT(28) +#define RMI_FEATURE_REGISTER_0_HASH_SHA_512 BIT(29) + +#define RMI_REALM_PARAM_FLAG_LPA2 BIT(0) +#define RMI_REALM_PARAM_FLAG_SVE BIT(1) +#define RMI_REALM_PARAM_FLAG_PMU BIT(2) + +/* + * Note many of these fields are smaller than u64 but all fields have u64 + * alignment, so use u64 to ensure correct alignment. + */ +struct realm_params { + union { /* 0x0 */ + struct { + u64 flags; + u64 s2sz; + u64 sve_vl; + u64 num_bps; + u64 num_wps; + u64 pmu_num_ctrs; + u64 hash_algo; + }; + u8 padding_1[0x400]; + }; + union { /* 0x400 */ + u8 rpv[64]; + u8 padding_2[0x400]; + }; + union { /* 0x800 */ + struct { + u64 vmid; + u64 rtt_base; + s64 rtt_level_start; + u64 rtt_num_start; + }; + u8 padding_3[0x800]; + }; +}; + +/* + * The number of GPRs (starting from X0) that are + * configured by the host when a REC is created. + */ +#define REC_CREATE_NR_GPRS 8 + +#define REC_PARAMS_FLAG_RUNNABLE BIT_ULL(0) + +#define REC_PARAMS_AUX_GRANULES 16 + +struct rec_params { + union { /* 0x0 */ + u64 flags; + u8 padding1[0x100]; + }; + union { /* 0x100 */ + u64 mpidr; + u8 padding2[0x100]; + }; + union { /* 0x200 */ + u64 pc; + u8 padding3[0x100]; + }; + union { /* 0x300 */ + u64 gprs[REC_CREATE_NR_GPRS]; + u8 padding4[0x500]; + }; + union { /* 0x800 */ + struct { + u64 num_rec_aux; + u64 aux[REC_PARAMS_AUX_GRANULES]; + }; + u8 padding5[0x800]; + }; +}; + +#define RMI_EMULATED_MMIO BIT(0) +#define RMI_INJECT_SEA BIT(1) +#define RMI_TRAP_WFI BIT(2) +#define RMI_TRAP_WFE BIT(3) + +#define REC_RUN_GPRS 31 +#define REC_GIC_NUM_LRS 16 + +struct rec_entry { + union { /* 0x000 */ + u64 flags; + u8 padding0[0x200]; + }; + union { /* 0x200 */ + u64 gprs[REC_RUN_GPRS]; + u8 padding2[0x100]; + }; + union { /* 0x300 */ + struct { + u64 gicv3_hcr; + u64 gicv3_lrs[REC_GIC_NUM_LRS]; + }; + u8 padding3[0x100]; + }; + u8 padding4[0x400]; +}; + +struct rec_exit { + union { /* 0x000 */ + u8 exit_reason; + u8 padding0[0x100]; + }; + union { /* 0x100 */ + struct { + u64 esr; + u64 far; + u64 hpfar; + }; + u8 padding1[0x100]; + }; + union { /* 0x200 */ + u64 gprs[REC_RUN_GPRS]; + u8 padding2[0x100]; + }; + union { /* 0x300 */ + struct { + u64 gicv3_hcr; + u64 gicv3_lrs[REC_GIC_NUM_LRS]; + u64 gicv3_misr; + u64 gicv3_vmcr; + }; + u8 padding3[0x100]; + }; + union { /* 0x400 */ + struct { + u64 cntp_ctl; + u64 cntp_cval; + u64 cntv_ctl; + u64 cntv_cval; + }; + u8 padding4[0x100]; + }; + union { /* 0x500 */ + struct { + u64 ripas_base; + u64 ripas_top; + u64 ripas_value; + }; + u8 padding5[0x100]; + }; + union { /* 0x600 */ + u16 imm; + u8 padding6[0x100]; + }; + union { /* 0x700 */ + struct { + u64 pmu_ovf_status; + }; + u8 padding7[0x100]; + }; +}; + +struct rec_run { + struct rec_entry entry; + struct rec_exit exit; +}; + +#define RMI_EXIT_SYNC 0x00 +#define RMI_EXIT_IRQ 0x01 +#define RMI_EXIT_FIQ 0x02 +#define RMI_EXIT_PSCI 0x03 +#define RMI_EXIT_RIPAS_CHANGE 0x04 +#define RMI_EXIT_HOST_CALL 0x05 +#define RMI_EXIT_SERROR 0x06 + +#endif