From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A3517C53200 for ; Wed, 29 Jul 2026 16:02:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=tj58DeWuXxMMNZstOQKSiFnqURI97rSDnq22Za8NGy0=; b=Z60LppEmH7K+5ln4r8fK2x4EYf bqqtg5hIF+DvjRWngN28pjIq4tjm8niw0q5WbnMriPAyesXHfsVLzVsaVoq6pQ+lyFp5RkwhYfvVd QlOTTyaYZksHFRfZrHKOYtb1ds2L90gQMrHDSOF7SzeJYu6dZpKGi9uOl4nQb+aWifjGtohOLerAE h66rfTBACvaU+3Nzb06QJ7zfsB7WwLwNN9k8cHwO3iH/boGK+hUDfxgGeRI2H0m+DspVuoN/EZwAm L9wQattL39lWaGMOA/0ufPeGLDJl21AHgE2cXxq6enbf1U7/0wlI0ISXknSzdSOPmKnrWan1x7iNN rWyhoXqw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wp6jX-00000008U1H-3ACN; Wed, 29 Jul 2026 16:02:15 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wp6jT-00000008U0h-3dxK for linux-arm-kernel@lists.infradead.org; Wed, 29 Jul 2026 16:02:13 +0000 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 51DFB1684; Wed, 29 Jul 2026 09:02:06 -0700 (PDT) Received: from [10.57.87.210] (unknown [10.57.87.210]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id C6AC23F763; Wed, 29 Jul 2026 09:02:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1785340930; bh=Ys0MPkKOxlKSPn/GloZGbyndnduWo55AIfjQv+j5p2Q=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=UXGrfjOZkBZ/WElBQIzGDM3SAUuI9vn93O/ArGOyTbF7VH7QDprfXWyIiJzU51Iei pYvu7noCxMMlQPxCu2iG6cFIXv8lCoBRtf70MLcN3ndN0lgcf35fVaHgbiluQIX029 ge544El3agtwXrDanyvLYimCOEleMbbx6+wMawCk= Message-ID: <8864267c-ce8c-4c3f-8ef5-ad973f9ee1f2@arm.com> Date: Wed, 29 Jul 2026 17:02:03 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/6] firmware: arm_rmm: Add SMC definitions for calling the RMM To: Kohei Enju Cc: kvm@vger.kernel.org, kvmarm@lists.linux.dev, 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 , Gavin Shan , Shanker Donthineni , Alper Gun , "Aneesh Kumar K . V" , Emi Kisanuki , Vishal Annapurve , WeiLin.Chang@arm.com, Lorenzo Pieralisi References: <20260715142739.80398-1-steven.price@arm.com> <20260715142739.80398-2-steven.price@arm.com> From: Steven Price Content-Language: en-GB In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260729_090212_095326_B8A2424D X-CRM114-Status: GOOD ( 17.27 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 23/07/2026 08:11, Kohei Enju wrote: > On 07/15 15:27, Steven Price wrote: >> 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 2.0-bet2 >> >> [1] https://developer.arm.com/documentation/den0137/2-0bet2/ >> >> Signed-off-by: Steven Price >> --- >> Changes since v14: >> * Updated to RMM spec v2.0-bet2 but without the changes to move >> metadata out of individual address range descriptors as this is >> expected to be reverted in a future spec release. >> Changes since v13: >> * Updated to RMM spec v2.0-bet1 >> Changes since v12: >> * Updated to RMM spec v2.0-bet0 >> Changes since v9: >> * Corrected size of 'ripas_value' in struct rec_exit. The spec states >> this is an 8-bit type with padding afterwards (rather than a u64). >> Changes since v8: >> * Added RMI_PERMITTED_GICV3_HCR_BITS to define which bits the RMM >> permits to be modified. >> Changes since v6: >> * Renamed REC_ENTER_xxx defines to include 'FLAG' to make it obvious >> these are flag values. >> Changes since v5: >> * Sorted the SMC #defines by value. >> * Renamed SMI_RxI_CALL to SMI_RMI_CALL since the macro is only used for >> RMI calls. >> * Renamed REC_GIC_NUM_LRS to REC_MAX_GIC_NUM_LRS since the actual >> number of available list registers could be lower. >> * Provided a define for the reserved fields of FeatureRegister0. >> * Fix inconsistent names for padding fields. >> Changes since v4: >> * Update to point to final released RMM spec. >> * Minor rearrangements. >> Changes since v3: >> * Update to match RMM spec v1.0-rel0-rc1. >> Changes since v2: >> * Fix specification link. >> * Rename rec_entry->rec_enter to match spec. >> * Fix size of pmu_ovf_status to match spec. >> --- >> include/linux/arm-smccc-rmi.h | 499 ++++++++++++++++++++++++++++++++++ >> 1 file changed, 499 insertions(+) >> create mode 100644 include/linux/arm-smccc-rmi.h >> >> diff --git a/include/linux/arm-smccc-rmi.h b/include/linux/arm-smccc-rmi.h >> new file mode 100644 >> index 000000000000..c965e8867518 >> --- /dev/null >> +++ b/include/linux/arm-smccc-rmi.h >> @@ -0,0 +1,499 @@ >> +/* SPDX-License-Identifier: GPL-2.0 */ >> +/* >> + * Copyright (C) 2023-2026 ARM Ltd. >> + * >> + * The values and structures in this file are from the Realm Management Monitor >> + * specification (DEN0137) version 2.0-bet2: >> + * https://developer.arm.com/documentation/den0137/2-0bet2/ >> + */ >> + >> +#ifndef __LINUX_ARM_SMCCC_RMI_H_ >> +#define __LINUX_ARM_SMCCC_RMI_H_ >> + >> +#include >> +#include >> +#include >> +#include >> +#include >> + >> +#include >> +#include >> + >> +#define SMC_RMI_CALL(func) \ >> + ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ >> + ARM_SMCCC_SMC_64, \ >> + ARM_SMCCC_OWNER_STANDARD, \ >> + (func)) >> + >> +#define SMC_RMI_VERSION SMC_RMI_CALL(0x0150) >> + >> +#define SMC_RMI_RTT_DATA_MAP_INIT SMC_RMI_CALL(0x0153) >> + >> +#define SMC_RMI_REALM_ACTIVATE SMC_RMI_CALL(0x0157) >> +#define SMC_RMI_REALM_CREATE SMC_RMI_CALL(0x0158) >> +#define SMC_RMI_REALM_DESTROY SMC_RMI_CALL(0x0159) >> +#define SMC_RMI_REC_CREATE SMC_RMI_CALL(0x015a) >> +#define SMC_RMI_REC_DESTROY SMC_RMI_CALL(0x015b) >> +#define SMC_RMI_REC_ENTER SMC_RMI_CALL(0x015c) >> +#define SMC_RMI_RTT_CREATE SMC_RMI_CALL(0x015d) >> +#define SMC_RMI_RTT_DESTROY SMC_RMI_CALL(0x015e) >> + >> +#define SMC_RMI_RTT_READ_ENTRY SMC_RMI_CALL(0x0161) >> + >> +#define SMC_RMI_RTT_DEV_VALIDATE SMC_RMI_CALL(0x0163) >> +#define SMC_RMI_PSCI_COMPLETE SMC_RMI_CALL(0x0164) >> +#define SMC_RMI_FEATURES SMC_RMI_CALL(0x0165) >> +#define SMC_RMI_RTT_FOLD SMC_RMI_CALL(0x0166) >> + >> +#define SMC_RMI_RTT_INIT_RIPAS SMC_RMI_CALL(0x0168) >> +#define SMC_RMI_RTT_SET_RIPAS SMC_RMI_CALL(0x0169) >> +#define SMC_RMI_VSMMU_CREATE SMC_RMI_CALL(0x016a) >> +#define SMC_RMI_VSMMU_DESTROY SMC_RMI_CALL(0x016b) >> + >> +#define SMC_RMI_RMM_CONFIG_SET SMC_RMI_CALL(0x016e) >> +#define SMC_RMI_PSMMU_IRQ_NOTIFY SMC_RMI_CALL(0x016f) >> +#define SMC_RMI_ATTEST_PLAT_TOKEN_REFRESH SMC_RMI_CALL(0x0170) >> + >> +#define SMC_RMI_PDEV_ABORT SMC_RMI_CALL(0x0174) >> +#define SMC_RMI_PDEV_COMMUNICATE SMC_RMI_CALL(0x0175) >> +#define SMC_RMI_PDEV_CREATE SMC_RMI_CALL(0x0176) >> +#define SMC_RMI_PDEV_DESTROY SMC_RMI_CALL(0x0177) >> +#define SMC_RMI_PDEV_GET_STATE SMC_RMI_CALL(0x0178) >> + >> +#define SMC_RMI_PDEV_STREAM_KEY_REFRESH SMC_RMI_CALL(0x017a) >> +#define SMC_RMI_PDEV_SET_PUBKEY SMC_RMI_CALL(0x017b) >> +#define SMC_RMI_PDEV_STOP SMC_RMI_CALL(0x017c) >> +#define SMC_RMI_RTT_AUX_CREATE SMC_RMI_CALL(0x017d) >> +#define SMC_RMI_RTT_AUX_DESTROY SMC_RMI_CALL(0x017e) >> +#define SMC_RMI_RTT_AUX_FOLD SMC_RMI_CALL(0x017f) >> + >> +#define SMC_RMI_VDEV_ABORT SMC_RMI_CALL(0x0185) >> +#define SMC_RMI_VDEV_COMMUNICATE SMC_RMI_CALL(0x0186) >> +#define SMC_RMI_VDEV_CREATE SMC_RMI_CALL(0x0187) >> +#define SMC_RMI_VDEV_DESTROY SMC_RMI_CALL(0x0188) >> +#define SMC_RMI_VDEV_GET_STATE SMC_RMI_CALL(0x0189) >> +#define SMC_RMI_VDEV_UNLOCK SMC_RMI_CALL(0x018a) >> +#define SMC_RMI_RTT_SET_S2AP SMC_RMI_CALL(0x018b) >> + >> +#define SMC_RMI_VDEV_GET_INTERFACE_REPORT SMC_RMI_CALL(0x01d0) >> +#define SMC_RMI_VDEV_GET_MEASUREMENTS SMC_RMI_CALL(0x01d1) >> +#define SMC_RMI_VDEV_LOCK SMC_RMI_CALL(0x01d2) >> +#define SMC_RMI_VDEV_START SMC_RMI_CALL(0x01d3) >> +#define SMC_RMI_VDEV_P2P_BIND SMC_RMI_CALL(0x01d4) >> +#define SMC_RMI_VDEV_P2P_UNBIND SMC_RMI_CALL(0x01d5) >> +#define SMC_RMI_VSMMU_EVENT_HANDLE SMC_RMI_CALL(0x01d6) >> +#define SMC_RMI_PSMMU_ACTIVATE SMC_RMI_CALL(0x01d7) >> +#define SMC_RMI_PSMMU_DEACTIVATE SMC_RMI_CALL(0x01d8) >> + >> +#define SMC_RMI_PSMMU_ST_L2_CREATE SMC_RMI_CALL(0x01db) >> +#define SMC_RMI_PSMMU_ST_L2_DESTROY SMC_RMI_CALL(0x01dc) >> +#define SMC_RMI_DPT_L0_CREATE SMC_RMI_CALL(0x01dd) >> +#define SMC_RMI_DPT_L0_DESTROY SMC_RMI_CALL(0x01de) >> +#define SMC_RMI_DPT_L1_CREATE SMC_RMI_CALL(0x01df) >> +#define SMC_RMI_DPT_L1_DESTROY SMC_RMI_CALL(0x01e0) >> +#define SMC_RMI_GRANULE_TRACKING_GET SMC_RMI_CALL(0x01e1) >> + >> +#define SMC_RMI_GRANULE_TRACKING_SET SMC_RMI_CALL(0x01e3) >> +#define SMC_RMI_CMEM_ADD_PDEV SMC_RMI_CALL(0x01e4) >> +#define SMC_RMI_CMEM_CREATE SMC_RMI_CALL(0x01e5) >> +#define SMC_RMI_CMEM_DESTROY SMC_RMI_CALL(0x01e6) >> +#define SMC_RMI_CMEM_POPULATE SMC_RMI_CALL(0x01e7) >> +#define SMC_RMI_CMEM_REMOVE_PDEV SMC_RMI_CALL(0x01e8) >> +#define SMC_RMI_CMEM_START SMC_RMI_CALL(0x01e9) >> +#define SMC_RMI_CMEM_STOP SMC_RMI_CALL(0x01ea) >> +#define SMC_RMI_CMEM_UNPOPULATE SMC_RMI_CALL(0x01eb) >> +#define SMC_RMI_RMM_CONFIG_GET SMC_RMI_CALL(0x01ec) >> +#define SMC_RMI_PDEV_MEC_REFRESH SMC_RMI_CALL(0x01ed) >> +#define SMC_RMI_RMM_STATE_GET SMC_RMI_CALL(0x01ee) >> + >> +#define SMC_RMI_PSMMU_EVENT_CONSUME SMC_RMI_CALL(0x01f0) >> +#define SMC_RMI_GRANULE_RANGE_DELEGATE SMC_RMI_CALL(0x01f1) >> +#define SMC_RMI_GRANULE_RANGE_UNDELEGATE SMC_RMI_CALL(0x01f2) >> +#define SMC_RMI_GPT_L1_CREATE SMC_RMI_CALL(0x01f3) >> +#define SMC_RMI_GPT_L1_DESTROY SMC_RMI_CALL(0x01f4) >> +#define SMC_RMI_RTT_DATA_MAP SMC_RMI_CALL(0x01f5) >> +#define SMC_RMI_RTT_DATA_UNMAP SMC_RMI_CALL(0x01f6) >> +#define SMC_RMI_RTT_DEV_MAP SMC_RMI_CALL(0x01f7) >> +#define SMC_RMI_RTT_DEV_UNMAP SMC_RMI_CALL(0x01f8) >> +#define SMC_RMI_RTT_ARCH_DEV_MAP SMC_RMI_CALL(0x01f9) >> +#define SMC_RMI_RTT_ARCH_DEV_UNMAP SMC_RMI_CALL(0x01fa) >> +#define SMC_RMI_RTT_UNPROT_MAP SMC_RMI_CALL(0x01fb) >> +#define SMC_RMI_RTT_UNPROT_UNMAP SMC_RMI_CALL(0x01fc) >> +#define SMC_RMI_RTT_AUX_PROT_MAP SMC_RMI_CALL(0x01fd) >> +#define SMC_RMI_RTT_AUX_PROT_UNMAP SMC_RMI_CALL(0x01fe) >> +#define SMC_RMI_RTT_AUX_UNPROT_MAP SMC_RMI_CALL(0x01ff) >> +#define SMC_RMI_RTT_AUX_UNPROT_UNMAP SMC_RMI_CALL(0x0200) >> +#define SMC_RMI_REALM_TERMINATE SMC_RMI_CALL(0x0201) >> +#define SMC_RMI_RMM_ACTIVATE SMC_RMI_CALL(0x0202) >> +#define SMC_RMI_OP_CONTINUE SMC_RMI_CALL(0x0203) >> +#define SMC_RMI_PDEV_STREAM_CONNECT SMC_RMI_CALL(0x0204) >> +#define SMC_RMI_PDEV_STREAM_DISCONNECT SMC_RMI_CALL(0x0205) >> +#define SMC_RMI_PDEV_STREAM_COMPLETE SMC_RMI_CALL(0x0206) >> +#define SMC_RMI_PDEV_STREAM_KEY_PURGE SMC_RMI_CALL(0x0207) >> +#define SMC_RMI_OP_MEM_DONATE SMC_RMI_CALL(0x0208) >> +#define SMC_RMI_OP_MEM_RECLAIM SMC_RMI_CALL(0x0209) >> +#define SMC_RMI_OP_CANCEL SMC_RMI_CALL(0x020a) >> +#define SMC_RMI_VSMMU_FEATURES SMC_RMI_CALL(0x020b) >> +#define SMC_RMI_VSMMU_CMD_GET SMC_RMI_CALL(0x020c) >> +#define SMC_RMI_VSMMU_CMD_COMPLETE SMC_RMI_CALL(0x020d) >> +#define SMC_RMI_PSMMU_INFO SMC_RMI_CALL(0x020e) >> + >> +#define RMI_ABI_MAJOR_VERSION 2 >> +#define RMI_ABI_MINOR_VERSION 0 >> + >> +#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_MASK (0xFFUL) >> +#define RMI_RETURN_INDEX_MASK (0xFFUL << 8) >> +#define RMI_RETURN_MEMREQ_MASK (0x3UL << 8) >> +#define RMI_RETURN_CAN_CANCEL_MASK (0x1UL << 10) >> + >> +#define RMI_RETURN_STATUS(ret) FIELD_GET(RMI_RETURN_STATUS_MASK, ret) >> +#define RMI_RETURN_INDEX(ret) FIELD_GET(RMI_RETURN_INDEX_MASK, ret) >> +#define RMI_RETURN_MEMREQ(ret) FIELD_GET(RMI_RETURN_MEMREQ_MASK, ret) >> +#define RMI_RETURN_CAN_CANCEL(ret) FIELD_GET(RMI_RETURN_CAN_CANCEL_MASK, ret) >> + >> +#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_ERROR_NOT_SUPPORTED 5 >> +#define RMI_ERROR_DEVICE 6 >> +#define RMI_ERROR_RTT_AUX 7 >> +#define RMI_ERROR_PSMMU_ST 8 >> +#define RMI_ERROR_DPT 9 >> +#define RMI_BUSY 10 >> +#define RMI_ERROR_GLOBAL 11 >> +#define RMI_ERROR_TRACKING 12 >> +#define RMI_INCOMPLETE 13 >> +#define RMI_BLOCKED 14 >> +#define RMI_ERROR_GPT 15 >> +#define RMI_ERROR_GRANULE 16 >> + >> +#define RMI_CONTINUE_KEEP_GOING 0 >> +#define RMI_CONTINUE_STOP 1 >> + >> +#define RMI_OP_MEM_REQ_NONE 0 >> +#define RMI_OP_MEM_REQ_DONATE 1 >> +#define RMI_OP_MEM_REQ_RECLAIM 2 >> + >> +#define RMI_DONATE_SIZE_MASK 3UL >> +#define RMI_DONATE_COUNT_MASK GENMASK(15, 2) >> +#define RMI_DONATE_CONTIG_MASK BIT(16) >> +#define RMI_DONATE_STATE_MASK BIT(17) >> + >> +#define RMI_DONATE_SIZE(req) FIELD_GET(RMI_DONATE_SIZE_MASK, req) >> +#define RMI_DONATE_COUNT(req) FIELD_GET(RMI_DONATE_COUNT_MASK, req) >> +#define RMI_DONATE_CONTIG(req) FIELD_GET(RMI_DONATE_CONTIG_MASK, req) >> +#define RMI_DONATE_STATE(req) FIELD_GET(RMI_DONATE_STATE_MASK, req) >> + >> +#define RMI_OP_MEM_DELEGATED 0 >> +#define RMI_OP_MEM_UNDELEGATED 1 >> + >> +#define RMI_ADDR_TYPE_NONE 0 >> +#define RMI_ADDR_TYPE_SINGLE 1 >> +#define RMI_ADDR_TYPE_LIST 2 >> + >> +#define RMI_ADDR_RANGE_SIZE_MASK GENMASK(1, 0) >> +#define RMI_ADDR_RANGE_COUNT_MASK GENMASK(PAGE_SHIFT - 1, 2) >> +#define RMI_ADDR_RANGE_ADDR_MASK (PAGE_MASK & GENMASK(51, 0)) >> +#define RMI_ADDR_RANGE_STATE_MASK BIT(63) >> + >> +#define RMI_ADDR_RANGE_SIZE(ar) (FIELD_GET(RMI_ADDR_RANGE_SIZE_MASK, \ >> + (ar))) >> +#define RMI_ADDR_RANGE_COUNT(ar) (FIELD_GET(RMI_ADDR_RANGE_COUNT_MASK, \ >> + (ar))) >> +#define RMI_ADDR_RANGE_ADDR(ar) ((ar) & RMI_ADDR_RANGE_ADDR_MASK) >> +#define RMI_ADDR_RANGE_STATE(ar) (FIELD_GET(RMI_ADDR_RANGE_STATE_MASK, \ >> + (ar))) >> + >> +enum rmi_ripas { >> + RMI_EMPTY = 0, >> + RMI_RAM = 1, >> + RMI_DESTROYED = 2, >> + RMI_DEV = 3, >> +}; >> + >> +#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 BIT(9) >> +#define RMI_FEATURE_REGISTER_0_SVE_VL GENMASK(13, 10) >> +#define RMI_FEATURE_REGISTER_0_NUM_BPS GENMASK(19, 14) >> +#define RMI_FEATURE_REGISTER_0_NUM_WPS GENMASK(25, 20) >> +#define RMI_FEATURE_REGISTER_0_PMU BIT(26) >> +#define RMI_FEATURE_REGISTER_0_PMU_NUM_CTRS GENMASK(31, 27) >> + >> +#define RMI_FEATURE_REGISTER_1_RMI_GRAN_SZ_4KB BIT(0) >> +#define RMI_FEATURE_REGISTER_1_RMI_GRAN_SZ_16KB BIT(1) >> +#define RMI_FEATURE_REGISTER_1_RMI_GRAN_SZ_64KB BIT(2) >> +#define RMI_FEATURE_REGISTER_1_HASH_SHA_256 BIT(3) >> +#define RMI_FEATURE_REGISTER_1_HASH_SHA_384 BIT(4) >> +#define RMI_FEATURE_REGISTER_1_HASH_SHA_512 BIT(5) >> +#define RMI_FEATURE_REGISTER_1_MAX_RECS_ORDER GENMASK(9, 6) >> +#define RMI_FEATURE_REGISTER_1_L0GPTSZ GENMASK(13, 10) >> +#define RMI_FEATURE_REGISTER_1_PPS GENMASK(16, 14) >> + >> +#define RMI_FEATURE_REGISTER_2_DA BIT(0) >> +#define RMI_FEATURE_REGISTER_2_DA_COH BIT(1) >> +#define RMI_FEATURE_REGISTER_2_VSMMU BIT(2) >> +#define RMI_FEATURE_REGISTER_2_ATS BIT(3) >> +#define RMI_FEATURE_REGISTER_2_MAX_VDEVS_ORDER GENMASK(7, 4) >> +#define RMI_FEATURE_REGISTER_2_VDEV_KROU BIT(8) >> +#define RMI_FEATURE_REGISTER_2_NON_TEE_STREAM BIT(9) >> +#define RMI_FEATURE_REGISTER_2_P2P BIT(10) >> +#define RMI_FEATURE_REGISTER_2_CMEM_CXL BIT(11) >> +#define RMI_FEATURE_REGISTER_2_MAX_CMEM GENMASK(19, 12) >> +#define RMI_FEATURE_REGISTER_2_CMEM_TSE_REQ BIT(20) >> + >> +#define RMI_FEATURE_REGISTER_3_MAX_NUM_AUX_PLANES GENMASK(3, 0) >> +#define RMI_FEATURE_REGISTER_3_RTT_PLANE GENMASK(5, 4) >> +#define RMI_FEATURE_REGISTER_3_RTT_S2AP_INDIRECT BIT(6) >> + >> +#define RMI_FEATURE_REGISTER_4_MEC_COUNT GENMASK(63, 0) >> + >> +#define RMI_MEM_CATEGORY_CONVENTIONAL 0 >> +#define RMI_MEM_CATEGORY_DEV_NCOH 1 >> +#define RMI_MEM_CATEGORY_DEV_COH 2 >> + >> +#define RMI_TRACKING_RESERVED 0 >> +#define RMI_TRACKING_NONE 1 >> +#define RMI_TRACKING_FINE 2 >> +#define RMI_TRACKING_COARSE 3 >> + >> +#define RMI_GRANULE_SIZE_4KB 0 >> +#define RMI_GRANULE_SIZE_16KB 1 >> +#define RMI_GRANULE_SIZE_64KB 2 >> + >> +/* >> + * Note many of these fields are smaller than u64 but all fields have u64 >> + * alignment, so use u64 to ensure correct alignment. >> + */ >> +struct rmm_config { >> + union { /* 0x0 */ >> + struct { >> + u64 tracking_region_size; >> + u64 rmi_granule_size; >> + }; >> + u8 sizer[SZ_4K]; >> + }; >> +}; >> + >> +static_assert(sizeof(struct rmm_config) == SZ_4K); >> + >> +#define RMI_REALM_PARAM_FLAG_LPA2 BIT(0) >> +#define RMI_REALM_PARAM_FLAG_SVE BIT(1) >> +#define RMI_REALM_PARAM_FLAG_PMU BIT(2) >> +#define RMI_REALM_PARAM_FLAG_DA BIT(3) >> +#define RMI_REALM_PARAM_FLAG_LFA_POLICY GENMASK(6, 5) >> +#define RMI_REALM_PARAM_FLAG_MEC_POLICY GENMASK(8, 7) >> + >> +#define RMI_HASH_SHA_256 0 >> +#define RMI_HASH_SHA_512 1 >> +#define RMI_HASH_SHA_384 2 >> + >> +struct realm_params { >> + union { /* 0x0 */ >> + struct { >> + u64 flags0; >> + u64 s2sz; >> + u64 sve_vl; >> + u64 num_bps; >> + u64 num_wps; >> + u64 pmu_num_ctrs; >> + u64 hash_algo; >> + u64 num_aux_planes; >> + }; >> + u8 padding0[0x400]; >> + }; >> + union { /* 0x400 */ >> + struct { >> + u8 rpv[64]; >> + u64 ats_plane; >> + }; >> + u8 padding1[0x400]; >> + }; >> + union { /* 0x800 */ >> + struct { >> + u64 padding; >> + u64 rtt_base; >> + s64 rtt_level_start; >> + u64 rtt_num_start; >> + u64 flags1; >> + u64 aux_rtt_base[3]; >> + }; >> + u8 padding2[0x800]; >> + }; >> +}; >> + >> +static_assert(sizeof(struct realm_params) == SZ_4K); >> + >> +/* >> + * 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) >> + >> +struct rec_params { >> + union { /* 0x0 */ >> + u64 flags; >> + u8 padding0[0x100]; >> + }; >> + union { /* 0x100 */ >> + u64 mpidr; >> + u8 padding1[0x100]; >> + }; >> + union { /* 0x200 */ >> + u64 pc; >> + u8 padding2[0x100]; >> + }; >> + union { /* 0x300 */ >> + u64 gprs[REC_CREATE_NR_GPRS]; >> + u8 padding3[0xd00]; >> + }; >> +}; >> + >> +static_assert(sizeof(struct rec_params) == SZ_4K); >> + >> +#define REC_ENTER_FLAG_EMULATED_MMIO BIT(0) >> +#define REC_ENTER_FLAG_INJECT_SEA BIT(1) >> +#define REC_ENTER_FLAG_TRAP_WFI BIT(2) >> +#define REC_ENTER_FLAG_TRAP_WFE BIT(3) >> +#define REC_ENTER_FLAG_RIPAS_RESPONSE BIT(4) >> +#define REC_ENTER_FLAG_S2AP_RESPONSE BIT(5) >> +#define REC_ENTER_FLAG_DEV_MEM_RESPONSE BIT(6) >> +#define REC_ENTER_FLAG_FORCE_P0 BIT(7) >> + >> +#define REC_RUN_GPRS 31 >> +#define REC_MAX_GIC_NUM_LRS 16 >> + >> +#define RMI_PERMITTED_GICV3_HCR_BITS (ICH_HCR_EL2_UIE | \ >> + ICH_HCR_EL2_LRENPIE | \ >> + ICH_HCR_EL2_NPIE | \ >> + ICH_HCR_EL2_VGrp0EIE | \ >> + ICH_HCR_EL2_VGrp0DIE | \ >> + ICH_HCR_EL2_VGrp1EIE | \ >> + ICH_HCR_EL2_VGrp1DIE | \ >> + ICH_HCR_EL2_TDIR) > > nit: > Is this a leftover from the RMM v1.0 support? > It's unused now, and I don't think it'll be needed with the RMM v2.0 > interface. Good spot - yes that's left-over and should be removed. Equally REC_MAX_GIC_NUM_LRS has no business being there any more. Thanks, Steve >> + >> +struct rec_enter { >> + union { /* 0x000 */ >> + u64 flags; >> + u8 padding0[0x200]; >> + }; >> + union { /* 0x200 */ >> + u64 gprs[REC_RUN_GPRS]; >> + u8 padding1[0x100]; >> + }; >> + u8 padding3[0x500]; >> +}; >> + >> +static_assert(sizeof(struct rec_enter) == SZ_2K); >> + >> +#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 >> +#define RMI_EXIT_S2AP_CHANGE 0x07 >> +#define RMI_EXIT_VDEV_VALIDATE_MAPPING 0x08 >> +#define RMI_EXIT_VSMMU_COMMAND 0x0a >> +#define RMI_EXIT_VDEV_P2P_BINDING 0x0b >> + >> +struct rec_exit { >> + union { /* 0x000 */ >> + u8 exit_reason; >> + u8 padding0[0x100]; >> + }; >> + union { /* 0x100 */ >> + struct { >> + u64 esr; >> + u64 far; >> + u64 hpfar; >> + u64 rtt_tree; >> + }; >> + u8 padding1[0x100]; >> + }; >> + union { /* 0x200 */ >> + u64 gprs[REC_RUN_GPRS]; >> + u8 padding2[0x100]; >> + }; >> + union { /* 0x300 */ >> + 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; >> + u8 ripas_value; >> + u8 padding8[15]; >> + u64 s2ap_base; >> + u64 s2ap_top; >> + u64 vdev_id_1; >> + u64 vdev_id_2; >> + u64 dev_mem_base; >> + u64 dev_mem_top; >> + u64 dev_mem_pa; >> + }; >> + u8 padding5[0x100]; >> + }; >> + union { /* 0x600 */ >> + struct { >> + u16 imm; >> + u16 padding9; >> + u64 plane; >> + }; >> + u8 padding6[0x100]; >> + }; >> + union { /* 0x700 */ >> + struct { >> + u8 pmu_ovf_status; >> + u8 padding10[15]; >> + u64 vsmmu; >> + }; >> + u8 padding7[0x100]; >> + }; >> +}; >> + >> +static_assert(sizeof(struct rec_exit) == SZ_2K); >> + >> +struct rec_run { >> + struct rec_enter enter; >> + struct rec_exit exit; >> +}; >> + >> +static_assert(sizeof(struct rec_run) == SZ_4K); >> + >> +/* RMI_RTT_UNPROT_MAP_FLAGS definitions */ >> +#define RMI_RTT_UNPROT_MAP_FLAGS_OADDR_TYPE GENMASK(1, 0) >> +#define RMI_RTT_UNPROT_MAP_FLAGS_LIST_COUNT GENMASK(15, 2) >> +#define RMI_RTT_UNPROT_MAP_FLAGS_MEMATTR GENMASK(18, 16) >> +#define RMI_RTT_UNPROT_MAP_FLAGS_S2AP GENMASK(22, 19) >> + >> +/* RMI_RTT_DATA_MAP_FLAGS definitions */ >> +#define RMI_RTT_PROT_MAP_FLAGS_OADDR_TYPE GENMASK(1, 0) >> +#define RMI_RTT_PROT_MAP_FLAGS_LIST_COUNT GENMASK(15, 2) >> + >> +/* S2AP Direct Encodings, used in RMI_RTT_UNPROT_MAP_FLAGS_S2AP */ >> +#define RMI_S2AP_DIRECT_WRITE BIT(0) >> +#define RMI_S2AP_DIRECT_READ BIT(1) >> + >> +#endif /* __LINUX_ARM_SMCCC_RMI_H_ */ >> -- >> 2.43.0 >> >>