From nobody Wed Nov 27 06:36:33 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1700631327; cv=none; d=zohomail.com; s=zohoarc; b=NT7uQ5fuTWUPeE19itFQqr5JQSEWZQc6j/qtDOaOcB3gsT0RMmbM3TpEaLk/blqwFJKWqcI76YBHFjtnuR8f+OmDc4nBA3R9IsjO1qhjlS3a1vBEVOZW0+hpD3DE9QxxqFrd5ZaJhG2g+bZ7nhi3U3AJd7KLsD3PPP8PF84sWqU= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1700631327; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:Reply-To:References:Sender:Subject:Subject:To:To:Message-Id; bh=cR8pY+jcApnmViUtUXJ/lczOkJbsD8JeLWt6/AGuUJU=; b=RSEDTBxDvAQk2jqejYsS7vgOkAmoXYq4hceqVFpuA6Uxp5GUpJUcgdStGMZILYKOqnCBzt0IgkIP10D7aeJcqQa6nRRp5oTBWJWTZweSJ2v4YrVa43G5xHwURRDMKlr0/o40BXtxcJHzoT9JhPVy7DAq9HA8/0aom57jaUDSoVE= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 170063132693385.35179340440015; Tue, 21 Nov 2023 21:35:26 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1r5fsb-0006zR-3K; Wed, 22 Nov 2023 00:34:29 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1r5fsZ-0006xe-NR; Wed, 22 Nov 2023 00:34:27 -0500 Received: from 60-248-80-70.hinet-ip.hinet.net ([60.248.80.70] helo=Atcsqr.andestech.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1r5fsL-0006bj-Qr; Wed, 22 Nov 2023 00:34:27 -0500 Received: from mail.andestech.com (ATCPCS16.andestech.com [10.0.1.222]) by Atcsqr.andestech.com with ESMTP id 3AM5XEcN017879; Wed, 22 Nov 2023 13:33:14 +0800 (+08) (envelope-from ethan84@andestech.com) Received: from ethan84-VirtualBox.andestech.com (10.0.12.51) by ATCPCS16.andestech.com (10.0.1.222) with Microsoft SMTP Server id 14.3.498.0; Wed, 22 Nov 2023 13:33:10 +0800 To: CC: , , , , , , , , , , , , , Ethan Chen Subject: [PATCH v4 2/4] Add RISC-V IOPMP support Date: Wed, 22 Nov 2023 13:32:49 +0800 Message-ID: <20231122053251.440723-3-ethan84@andestech.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231122053251.440723-1-ethan84@andestech.com> References: <20231122053251.440723-1-ethan84@andestech.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.0.12.51] X-DNSRBL: X-SPAM-SOURCE-CHECK: pass X-MAIL: Atcsqr.andestech.com 3AM5XEcN017879 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=60.248.80.70; envelope-from=ethan84@andestech.com; helo=Atcsqr.andestech.com X-Spam_score_int: -8 X-Spam_score: -0.9 X-Spam_bar: / X-Spam_report: (-0.9 / 5.0 requ) BAYES_00=-1.9, RDNS_DYNAMIC=0.982, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, TVD_RCVD_IP=0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Ethan Chen From: Ethan Chen via Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1700631329514100003 Content-Type: text/plain; charset="utf-8" Support specification Version 1.0.0-draft4 rapid-k model. The specification url: https://github.com/riscv-non-isa/iopmp-spec/blob/main/riscv_iopmp_specifica= tion.pdf IOPMP check memory access from deivce is valid or not. This implementation = uses IOMMU to change address space that device access. There are three possible results of an access: valid, blocked, and stalled. If an access is valid, target address spcae is downstream_as(system_memory). If an access is blocked, it will go to blocked_io_as. The operation of blocked_io_as could be a bus error, a decode error, or it can respond a suc= cess with fabricated data depending on IOPMP ERRREACT register value. If an access is stalled, it will go to stall_io_as. The operation of stall_= io_as does nothing but return a stall result to source device. Source device shou= ld retry the access if it gets a stall result. IOPMP implementation is rely on bus signal. For example IOPMP on AXI bus ch= ecks the AXI burst transaction. A streamsink to receive general transaction_info= (sid, start address, end address) is added to IOPMP. If the source device support transaction_info, it can first send a transaction_info to IOPMP streamsink then do the memory access. IOPMP will = do additional partially hit check with transaction info. If the source device does not support transaction info. IOPMP will not check partially hit. Signed-off-by: Ethan Chen --- hw/misc/Kconfig | 4 + hw/misc/meson.build | 1 + hw/misc/riscv_iopmp.c | 966 ++++++++++++++++++ include/hw/misc/riscv_iopmp.h | 341 +++++++ .../hw/misc/riscv_iopmp_transaction_info.h | 28 + 5 files changed, 1340 insertions(+) create mode 100644 hw/misc/riscv_iopmp.c create mode 100644 include/hw/misc/riscv_iopmp.h create mode 100644 include/hw/misc/riscv_iopmp_transaction_info.h diff --git a/hw/misc/Kconfig b/hw/misc/Kconfig index cc8a8c1418..953569e682 100644 --- a/hw/misc/Kconfig +++ b/hw/misc/Kconfig @@ -200,4 +200,8 @@ config IOSB config XLNX_VERSAL_TRNG bool =20 +config RISCV_IOPMP + bool + select STREAM + source macio/Kconfig diff --git a/hw/misc/meson.build b/hw/misc/meson.build index 36c20d5637..86b81e1690 100644 --- a/hw/misc/meson.build +++ b/hw/misc/meson.build @@ -35,6 +35,7 @@ system_ss.add(when: 'CONFIG_SIFIVE_E_PRCI', if_true: file= s('sifive_e_prci.c')) system_ss.add(when: 'CONFIG_SIFIVE_E_AON', if_true: files('sifive_e_aon.c'= )) system_ss.add(when: 'CONFIG_SIFIVE_U_OTP', if_true: files('sifive_u_otp.c'= )) system_ss.add(when: 'CONFIG_SIFIVE_U_PRCI', if_true: files('sifive_u_prci.= c')) +specific_ss.add(when: 'CONFIG_RISCV_IOPMP', if_true: files('riscv_iopmp.c'= )) =20 subdir('macio') =20 diff --git a/hw/misc/riscv_iopmp.c b/hw/misc/riscv_iopmp.c new file mode 100644 index 0000000000..098a3b81fd --- /dev/null +++ b/hw/misc/riscv_iopmp.c @@ -0,0 +1,966 @@ +/* + * QEMU RISC-V IOPMP (Input Output Physical Memory Protection) + * + * Copyright (c) 2023 Andes Tech. Corp. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2 or later, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License f= or + * more details. + * + * You should have received a copy of the GNU General Public License along= with + * this program. If not, see . + */ + +#include "qemu/osdep.h" +#include "qemu/log.h" +#include "qapi/error.h" +#include "trace.h" +#include "exec/exec-all.h" +#include "exec/address-spaces.h" +#include "hw/qdev-properties.h" +#include "hw/sysbus.h" +#include "hw/misc/riscv_iopmp.h" +#include "memory.h" +#include "hw/irq.h" + +#define TYPE_IOPMP_IOMMU_MEMORY_REGION "iopmp-iommu-memory-region" +#define TYPE_IOPMP_TRASACTION_INFO_SINK "iopmp_transaction_info_sink" + +DECLARE_INSTANCE_CHECKER(Iopmp_StreamSink, IOPMP_TRASACTION_INFO_SINK, + TYPE_IOPMP_TRASACTION_INFO_SINK) +#define LOGGE(x...) qemu_log_mask(LOG_GUEST_ERROR, x) +#define xLOG(x...) +#define yLOG(x...) qemu_log(x) +#ifdef DEBUG_RISCV_IOPMP + #define LOG(x...) yLOG(x) +#else + #define LOG(x...) xLOG(x) +#endif + +#define MEMTX_IOPMP_STALL (1 << 3) + + +static void iopmp_decode_napot(target_ulong a, target_ulong *sa, + target_ulong *ea) +{ + /* + * aaaa...aaa0 8-byte NAPOT range + * aaaa...aa01 16-byte NAPOT range + * aaaa...a011 32-byte NAPOT range + * ... + * aa01...1111 2^XLEN-byte NAPOT range + * a011...1111 2^(XLEN+1)-byte NAPOT range + * 0111...1111 2^(XLEN+2)-byte NAPOT range + * 1111...1111 Reserved + */ + + a =3D (a << 2) | 0x3; + *sa =3D a & (a + 1); + *ea =3D a | (a + 1); +} + +static void iopmp_update_rule(IopmpState *s, uint32_t entry_index) +{ + uint8_t this_cfg =3D s->regs.entry[entry_index].cfg_reg; + target_ulong this_addr =3D s->regs.entry[entry_index].addr_reg; + target_ulong prev_addr =3D 0u; + target_ulong sa =3D 0u; + target_ulong ea =3D 0u; + + if (entry_index >=3D 1u) { + prev_addr =3D s->regs.entry[entry_index - 1].addr_reg; + } + + switch (iopmp_get_field(this_cfg, ENTRY_CFG_A)) { + case IOPMP_AMATCH_OFF: + sa =3D 0u; + ea =3D -1; + break; + + case IOPMP_AMATCH_TOR: + sa =3D (prev_addr) << 2; /* shift up from [xx:0] to [xx+2:2] */ + ea =3D ((this_addr) << 2) - 1u; + if (sa > ea) { + sa =3D ea =3D 0u; + } + break; + + case IOPMP_AMATCH_NA4: + sa =3D this_addr << 2; /* shift up from [xx:0] to [xx+2:2] */ + ea =3D (sa + 4u) - 1u; + break; + + case IOPMP_AMATCH_NAPOT: + iopmp_decode_napot(this_addr, &sa, &ea); + break; + + default: + sa =3D 0u; + ea =3D 0u; + break; + } + + s->entry_addr[entry_index].sa =3D sa; + s->entry_addr[entry_index].ea =3D ea; +} + +static uint64_t iopmp_read(void *opaque, hwaddr addr, unsigned size) +{ + IopmpState *s =3D IOPMP(opaque); + uint32_t rz =3D 0; + uint32_t is_stall =3D 0; + uint32_t sid; + switch (addr) { + case IOPMP_VERSION ... IOPMP_USER_CFG0 + 16 * (IOPMP_MAX_ENTRY_NUM - 1= ): + switch (addr) { + case IOPMP_VERSION: + rz =3D VENDER_ANDES << VERSION_VENDOR | + SPECVER_1_0_0_DRAFT4 << VERSION_SPECVER; + break; + case IOPMP_IMP: + rz =3D IMPID_1_0_0_DRAFT4_0; + break; + case IOPMP_HWCFG0: /* RO */ + rz =3D s->sid_num << HWCFG0_SID_NUM | + s->entry_num << HWCFG0_ENTRY_NUM; + break; + case IOPMP_HWCFG1: + rz =3D s->model << HWCFG1_MODEL | TOR_EN << HWCFG1_TOR_EN | + s->sps_en << HWCFG1_SPS_EN | + USER_CFG_EN << HWCFG1_USER_CFG_EN | + s->prient_prog << HWCFG1_PRIENT_PROG | + s->sid_transl_en << HWCFG1_SID_TRANSL_EN | + s->sid_transl_prog << HWCFG1_SID_TRANSL_PROG | + s->md_num << HWCFG1_MD_NUM | + s->enable << HWCFG1_ENABLE; + break; + case IOPMP_HWCFG2: + rz =3D s->prio_entry << HWCFG2_PRIO_ENTRY | + s->sid_transl << HWCFG2_SID_TRANSL; + break; + case IOPMP_ENTRYOFFSET: + rz =3D IOPMP_ENTRY_ADDR0; + break; + case IOPMP_ERRREACT: + rz =3D s->regs.errreact; + break; + case IOPMP_MDSTALL: + if (s->md_stall_stat) { + is_stall =3D 1; + } + rz =3D iopmp_get_field(s->regs.mdstall, MDSTALL_MD) | is_stall; + break; + case IOPMP_MDSTALLH: + rz =3D s->regs.mdstall >> 32; + break; + case IOPMP_SIDSCP: + sid =3D iopmp_get_field(s->regs.sidscp, SIDSCP_SID); + if (sid < s->sid_num) { + rz =3D sid | (s->sidscp_op[sid]) << SIDSCP_STAT; + } else { + rz =3D sid | 3 << SIDSCP_STAT; + } + break; + case IOPMP_MDLCK: + rz =3D s->regs.mdlck & UINT32_MAX; + break; + case IOPMP_MDLCKH: + rz =3D s->regs.mdlck >> 32; + break; + case IOPMP_MDCFGLCK: + rz =3D s->regs.mdcfglck; + break; + case IOPMP_ENTRYLCK: + rz =3D s->regs.entrylck; + break; + case IOPMP_ERR_REQADDR: + rz =3D s->regs.err_reqaddr & UINT32_MAX; + break; + case IOPMP_ERR_REQADDRH: + rz =3D s->regs.err_reqaddr >> 32; + break; + case IOPMP_ERR_REQSID: + rz =3D s->regs.err_reqsid; + break; + case IOPMP_ERR_REQINFO: + rz =3D s->regs.err_reqinfo; + break; + + default: + if (addr >=3D IOPMP_MDCFG0 && + addr < IOPMP_MDCFG0 + 4 * (s->md_num - 1)) { + int offset =3D addr - IOPMP_MDCFG0; + int idx =3D offset >> 2; + if (idx =3D=3D 0) { + if (offset =3D=3D 0) { + rz =3D s->regs.mdcfg[idx]; + } else { + LOGGE("%s: Bad addr %x\n", __func__, (int)addr); + } + } else { + /* Only MDCFG0 is implemented */ + LOGGE("%s: Bad addr %x\n", __func__, (int)addr); + } + } else if (addr >=3D IOPMP_SRCMD_EN0 && + addr < IOPMP_SRCMD_WH0 + 32 * (s->sid_num - 1)) { + int offset =3D addr - IOPMP_SRCMD_EN0; + int idx =3D offset >> 5; + offset &=3D 0x1f; + if (offset =3D=3D 0) { + rz =3D s->regs.srcmd_en[idx] & UINT32_MAX; + } else if (offset =3D=3D 4) { + rz =3D s->regs.srcmd_en[idx] >> 32; + } else if (offset =3D=3D 8) { + rz =3D s->regs.srcmd_r[idx] & UINT32_MAX; + } else if (offset =3D=3D 12) { + rz =3D s->regs.srcmd_r[idx] >> 32; + } else if (offset =3D=3D 16) { + rz =3D s->regs.srcmd_w[idx] & UINT32_MAX; + } else if (offset =3D=3D 24) { + rz =3D s->regs.srcmd_w[idx] >> 32; + } else { + LOGGE("%s: Bad addr %x\n", __func__, (int)addr); + } + } else if (addr >=3D IOPMP_ENTRY_ADDR0 && + addr < IOPMP_USER_CFG0 + 16 * (s->entry_num - 1)) { + int offset =3D addr - IOPMP_ENTRY_ADDR0; + int idx =3D offset >> 4; + offset &=3D 0xf; + if (offset =3D=3D 0) { + rz =3D s->regs.entry[idx].addr_reg & UINT32_MAX; + } else if (offset =3D=3D 4) { + rz =3D s->regs.entry[idx].addr_reg >> 32; + } else if (offset =3D=3D 8) { + rz =3D s->regs.entry[idx].cfg_reg; + } else if (offset =3D=3D 12) { + /* Does not support user customized permission */ + rz =3D 0; + } else { + LOGGE("%s: Bad addr %x\n", __func__, (int)addr); + } + } else { + LOGGE("%s: Bad addr %x\n", __func__, (int)addr); + } + break; + } + LOG("\e[95m%s: addr %08x, value %08x\e[0m\n", __func__, (int)addr, + (int)rz); + break; + default: + LOGGE("%s: Bad addr %x\n", __func__, (int)addr); + } + + return rz; +} + +static void +iopmp_write(void *opaque, hwaddr addr, uint64_t value, unsigned size) +{ + IopmpState *s =3D IOPMP(opaque); + int value_f; + int reg_f; + uint32_t sid, op; + + switch (addr) { + case IOPMP_VERSION ... IOPMP_USER_CFG0 + 16 * (IOPMP_MAX_ENTRY_NUM - 1= ): + switch (addr) { + case IOPMP_VERSION: /* RO */ + break; + case IOPMP_IMP: /* RO */ + break; + case IOPMP_HWCFG0: /* RO */ + break; + case IOPMP_HWCFG1: + if (iopmp_get_field(value, HWCFG1_PRIENT_PROG)) { + /* W1C */ + s->prient_prog =3D 0; + } + if (iopmp_get_field(value, HWCFG1_SID_TRANSL_PROG)) { + /* W1C */ + s->sid_transl_prog =3D 0; + } + if (iopmp_get_field(value, HWCFG1_ENABLE)) { + /* W1S */ + s->enable =3D 1; + } + break; + case IOPMP_HWCFG2: + if (s->prient_prog) { + s->prio_entry =3D iopmp_get_field(value, HWCFG2_PRIO_ENTRY= ); + } + if (s->sid_transl_en && s->sid_transl_prog) { + s->sid_transl =3D iopmp_get_field(value, HWCFG2_SID_TRANSL= ); + } + break; + case IOPMP_ERRREACT: + if (!iopmp_get_field(s->regs.errreact, ERRREACT_L)) { + iopmp_set_field32(&s->regs.errreact, ERRREACT_L, + iopmp_get_field(value, ERRREACT_L)); + if (iopmp_get_field(value, ERRREACT_IP)) { + iopmp_set_field32(&s->regs.errreact, ERRREACT_IP, 0); + } + iopmp_set_field32(&s->regs.errreact, ERRREACT_IE, + iopmp_get_field(value, ERRREACT_IE)); + iopmp_set_field32(&s->regs.errreact, ERRREACT_IRE, + iopmp_get_field(value, ERRREACT_IRE)); + iopmp_set_field32(&s->regs.errreact, ERRREACT_RRE, + iopmp_get_field(value, ERRREACT_RRE)); + iopmp_set_field32(&s->regs.errreact, ERRREACT_IWE, + iopmp_get_field(value, ERRREACT_IWE)); + iopmp_set_field32(&s->regs.errreact, ERRREACT_RWE, + iopmp_get_field(value, ERRREACT_RWE)); + iopmp_set_field32(&s->regs.errreact, ERRREACT_PEE, + iopmp_get_field(value, ERRREACT_PEE)); + iopmp_set_field32(&s->regs.errreact, ERRREACT_RPE, + iopmp_get_field(value, ERRREACT_RPE)); + } else { + if (iopmp_get_field(value, ERRREACT_IP)) { + iopmp_set_field32(&s->regs.errreact, ERRREACT_IP, 0); + } + } + break; + case IOPMP_MDSTALL: + iopmp_set_field64(&s->regs.mdstall, MDSTALL, value); + break; + case IOPMP_MDSTALLH: + iopmp_set_field64(&s->regs.mdstall, MDSTALLH, value); + break; + case IOPMP_SIDSCP: + sid =3D iopmp_get_field(value, SIDSCP_SID); + op =3D iopmp_get_field(value, SIDSCP_OP); + if (sid < s->sid_num) { + if (op !=3D SIDSCP_OP_QUERY) { + s->sidscp_op[sid] =3D op; + s->regs.sidscp =3D value; + } + } else { + s->regs.sidscp =3D sid | (0x3 << SIDSCP_OP); + } + break; + case IOPMP_MDLCK: + if (!(s->regs.mdlck & (1 << MDLCK_L))) { + s->regs.mdlck =3D value | + (s->regs.mdstall & ~(uint64_t)UINT32_MAX); + } + break; + case IOPMP_MDLCKH: + if (!(s->regs.mdlck & (1 << MDLCK_L))) { + s->regs.mdlck =3D (uint64_t)value << 32 | + (s->regs.mdstall & UINT32_MAX); + } + break; + case IOPMP_MDCFGLCK: + if (!iopmp_get_field(s->regs.mdcfglck, MDCFGLCK_L)) { + value_f =3D iopmp_get_field(value, MDCFGLCK_F); + reg_f =3D iopmp_get_field(s->regs.mdcfglck, MDCFGLCK_F); + if (value_f > reg_f) { + iopmp_set_field32(&s->regs.mdcfglck, MDCFGLCK_F, value= _f); + } + iopmp_set_field32(&s->regs.mdcfglck, MDCFGLCK_L, + iopmp_get_field(value, MDCFGLCK_L)); + } + break; + case IOPMP_ENTRYLCK: + if (!(iopmp_get_field(s->regs.entrylck, ENTRYLCK_L))) { + value_f =3D iopmp_get_field(value, ENTRYLCK_F); + reg_f =3D iopmp_get_field(s->regs.entrylck, ENTRYLCK_F); + if (value_f > reg_f) { + iopmp_set_field32(&s->regs.entrylck, ENTRYLCK_F, value= _f); + } + iopmp_set_field32(&s->regs.entrylck, ENTRYLCK_F, + iopmp_get_field(value, ENTRYLCK_F)); + } + case IOPMP_ERR_REQADDR: /* RO */ + break; + case IOPMP_ERR_REQADDRH: /* RO */ + break; + case IOPMP_ERR_REQSID: /* RO */ + break; + case IOPMP_ERR_REQINFO: /* RO */ + break; + + default: + if (addr >=3D IOPMP_MDCFG0 && + addr < IOPMP_MDCFG0 + 4 * (s->md_num - 1)) { + int offset =3D addr - IOPMP_MDCFG0; + int idx =3D offset >> 2; + /* RO in rapid-k model */ + if (idx > 0) { + LOGGE("%s: Bad addr %x\n", __func__, (int)addr); + } + } else if (addr >=3D IOPMP_SRCMD_EN0 && + addr < IOPMP_SRCMD_WH0 + 32 * (s->sid_num - 1)) { + int offset =3D addr - IOPMP_SRCMD_EN0; + int idx =3D offset >> 5; + offset &=3D 0x1f; + if (offset % 4) { + LOGGE("%s: Bad addr %x\n", __func__, (int)addr); + } else if (iopmp_get_field(s->regs.srcmd_en[idx], + SRCMD_EN_L) =3D=3D 0) { + if (offset =3D=3D 0) { + iopmp_set_field64(&s->regs.srcmd_en[idx], SRCMD_EN= _MD, + iopmp_get_field(value, SRCMD_EN_MD= )); + iopmp_set_field64(&s->regs.srcmd_en[idx], SRCMD_EN= _L, + iopmp_get_field(value, SRCMD_EN_L)= ); + } else if (offset =3D=3D 4) { + iopmp_set_field64(&s->regs.srcmd_en[idx], SRCMD_EN= H_MDH, + value); + } else if (offset =3D=3D 8 && s->sps_en) { + iopmp_set_field64(&s->regs.srcmd_r[idx], SRCMD_R_M= D, + iopmp_get_field(value, SRCMD_R= _MD)); + } else if (offset =3D=3D 12 && s->sps_en) { + iopmp_set_field64(&s->regs.srcmd_r[idx], SRCMD_RH_= MDH, + value); + } else if (offset =3D=3D 16 && s->sps_en) { + iopmp_set_field64(&s->regs.srcmd_w[idx], SRCMD_W_M= D, + iopmp_get_field(value, SRCMD_W_MD)= ); + } else if (offset =3D=3D 24 && s->sps_en) { + iopmp_set_field64(&s->regs.srcmd_w[idx], SRCMD_WH_= MDH, + value); + } + } + } else if (addr >=3D IOPMP_ENTRY_ADDR0 && + addr < IOPMP_USER_CFG0 + 16 * (s->entry_num - 1)) { + int offset =3D addr - IOPMP_ENTRY_ADDR0; + int idx =3D offset >> 4; + offset &=3D 0xf; + if (offset =3D=3D 0) { + iopmp_set_field64(&s->regs.entry[idx].addr_reg, + ENTRY_ADDR_ADDR, value); + } else if (offset =3D=3D 4) { + iopmp_set_field64(&s->regs.entry[idx].addr_reg, + ENTRY_ADDRH_ADDRH, value); + } else if (offset =3D=3D 8) { + s->regs.entry[idx].cfg_reg =3D value; + } else if (offset =3D=3D 12) { + /* Does not support user customized permission */ + ; + } else { + LOGGE("%s: Bad addr %x\n", __func__, (int)addr); + } + iopmp_update_rule(s, idx); + } else { + LOGGE("%s: Bad addr %x\n", __func__, (int)addr); + } + /* If IOPMP permission of any addr has been changed, */ + /* flush TLB pages. */ + tlb_flush_all_cpus_synced(current_cpu); + break; + } + LOG("\e[95m%s: addr %08x, value %08x\e[0m\n", __func__, (int)addr, + (int)rz); + break; + default: + LOGGE("%s: Bad addr %x\n", __func__, (int)addr); + } +} + +/* Match entry in memory domain */ +static int match_entry_md(IopmpState *s, int md_idx, hwaddr s_addr, + hwaddr e_addr, int *entry_idx) +{ + int entry_idx_s, entry_idx_e; + int result =3D ENTRY_NO_HIT; + int i =3D 0; + entry_idx_s =3D md_idx * s->regs.mdcfg[0]; + entry_idx_e =3D (md_idx + 1) * s->regs.mdcfg[0]; + if (entry_idx_s >=3D s->entry_num) { + return result; + } + if (entry_idx_e > s->entry_num) { + entry_idx_e =3D s->entry_num; + } + i =3D entry_idx_s; + while (i < entry_idx_e) { + if (s_addr >=3D s->entry_addr[i].sa && s_addr <=3D s->entry_addr[i= ].ea) { + /* check end address */ + if (e_addr >=3D s->entry_addr[i].sa && + e_addr <=3D s->entry_addr[i].ea) { + *entry_idx =3D i; + return ENTRY_HIT; + } else if (i >=3D s->prio_entry) { + /* record result and continue for non-prio_entry */ + result =3D ENTRY_PAR_HIT; + continue; + } else { + return ENTRY_PAR_HIT; + } + } + i++; + } + return result; +} + +static int match_entry(IopmpState *s, int sid, hwaddr s_addr, hwaddr e_add= r, + int *match_md_idx, int *match_entry_idx) +{ + int cur_result =3D ENTRY_NO_HIT; + int result =3D ENTRY_NO_HIT; + uint64_t srcmd_en =3D s->regs.srcmd_en[sid] >> 1; + for (int md_idx =3D 0; md_idx < s->md_num; md_idx++) { + if (srcmd_en & (1ULL << md_idx)) { + cur_result =3D match_entry_md(s, md_idx, s_addr, e_addr, + match_entry_idx); + if (cur_result =3D=3D ENTRY_HIT) { + *match_md_idx =3D md_idx; + return cur_result; + } + if (cur_result > result) { + result =3D cur_result; + } + } + } + return result; +} + +static bool check_md_stall(IopmpState *s, int md_idx) +{ + uint64_t md_selected =3D iopmp_get_field(s->regs.mdstall, MDSTALL_MD) & + (1 << md_idx); + if (iopmp_get_field(s->regs.mdstall, MDSTALL_EXEMPT)) { + return !md_selected; + } else { + return md_selected; + } +} + +static inline bool check_sidscp_stall(IopmpState *s, int sid) +{ + return s->sidscp_op[sid] =3D=3D SIDSCP_OP_STALL; +} + +static void iopmp_error_reaction(IopmpState *s, uint32_t id, hwaddr start, + hwaddr end, uint32_t info) +{ + if (start =3D=3D s->prev_error_info[id].start_addr && + end =3D=3D s->prev_error_info[id].end_addr && + info =3D=3D s->prev_error_info[id].reqinfo) { + /* skip following error */ + ; + } else { + s->prev_error_info[id].start_addr =3D start; + s->prev_error_info[id].end_addr =3D end; + s->prev_error_info[id].reqinfo =3D info; + if (!iopmp_get_field(s->regs.errreact, ERRREACT_IP)) { + iopmp_set_field32(&s->regs.errreact, ERRREACT_IP, 1); + s->regs.err_reqsid =3D id; + s->regs.err_reqaddr =3D start; + s->regs.err_reqinfo =3D info; + + if (iopmp_get_field(info, ERR_REQINFO_TYPE) =3D=3D ERR_REQINFO= _TYPE_READ + && iopmp_get_field(s->regs.errreact, ERRREACT_IE) && + iopmp_get_field(s->regs.errreact, ERRREACT_IRE)) { + qemu_set_irq(s->irq, 1); + } + if (iopmp_get_field(info, ERR_REQINFO_TYPE) =3D=3D + ERR_REQINFO_TYPE_WRITE && + iopmp_get_field(s->regs.errreact, ERRREACT_IE) && + iopmp_get_field(s->regs.errreact, ERRREACT_IWE)) { + qemu_set_irq(s->irq, 1); + } + } + } +} + +static IOMMUTLBEntry iopmp_translate(IOMMUMemoryRegion *iommu, hwaddr addr, + IOMMUAccessFlags flags, int iommu_idx) +{ + bool is_stalled =3D false; + int sid =3D iommu_idx; + IopmpState *s =3D IOPMP(container_of(iommu, IopmpState, iommu)); + hwaddr start_addr, end_addr; + if (s->transaction_state[sid].supported) { + /* get transaction_state if device supported */ + start_addr =3D s->transaction_state[sid].start_addr; + end_addr =3D s->transaction_state[sid].end_addr; + if (addr > end_addr || addr < start_addr || + !s->transaction_state[sid].running) { + error_report("transaction_state error."); + exit(1); + } + } else { + start_addr =3D addr; + end_addr =3D addr; + } + IOMMUTLBEntry entry =3D { + .target_as =3D &s->downstream_as, + .iova =3D addr, + .translated_addr =3D addr, + .addr_mask =3D (~(hwaddr)0), + .perm =3D IOMMU_NONE, + }; + int entry_idx =3D -1; + int md_idx =3D -1; + int result =3D match_entry(s, sid, start_addr, end_addr, &md_idx, &ent= ry_idx); + int srcmd_rw; + if (result =3D=3D ENTRY_HIT) { + is_stalled =3D check_md_stall(s, md_idx) || check_sidscp_stall(s, = sid); + if (is_stalled) { + s->md_stall_stat |=3D (1 << md_idx); + entry.target_as =3D &s->stall_io_as; + entry.perm =3D IOMMU_RW; + return entry; + } else { + s->md_stall_stat &=3D ~(1 << md_idx); + } + entry.perm =3D s->regs.entry[entry_idx].cfg_reg & 0x7; + if (s->sps_en) { + /* SPS extension does not affect x permission */ + srcmd_rw =3D 0x4 | ((s->regs.srcmd_r[sid] >> + (md_idx + SRCMD_R_MD)) & 0x1); + srcmd_rw |=3D ((s->regs.srcmd_w[sid] >> + (md_idx + SRCMD_W_MD)) & 0x1) << 1; + entry.perm &=3D srcmd_rw; + } + if ((entry.perm & flags) =3D=3D 0) { + /* permission denied */ + iopmp_error_reaction(s, sid, start_addr, end_addr, + (entry_idx << ERR_REQINFO_EID) | + ((flags - 1) << ERR_REQINFO_TYPE)); + entry.target_as =3D &s->blocked_io_as; + entry.perm =3D IOMMU_RW; + } else { + entry.addr_mask =3D s->entry_addr[entry_idx].ea - + s->entry_addr[entry_idx].sa; + /* clear error info */ + s->prev_error_info[sid].reqinfo =3D 0; + if (s->sid_transl_en) { + /* pass to next iopmp */ + if (s->next_iommu) { + int new_sid =3D s->sid_transl; + IopmpState *next_s =3D IOPMP(container_of(s->next_iomm= u, + IopmpState, io= mmu)); + next_s->transaction_state[new_sid].supported =3D true; + while (next_s->transaction_state[new_sid].running) { + ; + } + qemu_mutex_lock(&next_s->iopmp_transaction_mutex); + next_s->transaction_state[new_sid].running =3D 1; + qemu_mutex_unlock(&next_s->iopmp_transaction_mutex); + next_s->transaction_state[new_sid].start_addr =3D star= t_addr; + next_s->transaction_state[new_sid].end_addr =3D end_ad= dr; + entry =3D iopmp_translate(s->next_iommu, addr, flags, + s->sid_transl); + qemu_mutex_lock(&next_s->iopmp_transaction_mutex); + next_s->transaction_state[new_sid].running =3D 0; + qemu_mutex_unlock(&next_s->iopmp_transaction_mutex); + return entry; + } else { + error_report("Next iopmp is not found."); + exit(1); + } + } + } + } else { + if (result =3D=3D ENTRY_PAR_HIT) { + iopmp_error_reaction(s, sid, start_addr, end_addr, + (1 << ERR_REQINFO_PAR_HIT) | + ((flags - 1) << ERR_REQINFO_TYPE)); + } else { + iopmp_error_reaction(s, sid, start_addr, end_addr, + (1 << ERR_REQINFO_NO_HIT) | + ((flags - 1) << ERR_REQINFO_TYPE)); + } + entry.target_as =3D &s->blocked_io_as; + entry.perm =3D IOMMU_RW; + } + return entry; +} + +static const MemoryRegionOps iopmp_ops =3D { + .read =3D iopmp_read, + .write =3D iopmp_write, + .endianness =3D DEVICE_NATIVE_ENDIAN, + .valid =3D {.min_access_size =3D 4, .max_access_size =3D 4} +}; + +static MemTxResult iopmp_block_write(void *opaque, hwaddr addr, uint64_t v= alue, + unsigned size, MemTxAttrs attrs) +{ + IopmpState *s =3D IOPMP(opaque); + + switch (iopmp_get_field(s->regs.errreact, ERRREACT_RWE)) { + case RWE_BUS_ERROR: + return MEMTX_ERROR; + break; + case RWE_DECODE_ERROR: + return MEMTX_DECODE_ERROR; + break; + case RWE_SUCCESS: + return MEMTX_OK; + break; + default: + break; + } + return MEMTX_OK; +} + +static MemTxResult iopmp_block_read(void *opaque, hwaddr addr, uint64_t *p= data, + unsigned size, MemTxAttrs attrs) +{ + IopmpState *s =3D IOPMP(opaque); + + switch (iopmp_get_field(s->regs.errreact, ERRREACT_RRE)) { + case RRE_BUS_ERROR: + return MEMTX_ERROR; + break; + case RRE_DECODE_ERROR: + return MEMTX_DECODE_ERROR; + break; + case RRE_SUCCESS_ZEROS: + *pdata =3D 0; + return MEMTX_OK; + break; + case RRE_SUCCESS_ONES: + *pdata =3D UINT64_MAX; + return MEMTX_OK; + break; + default: + break; + } + return MEMTX_OK; +} + +static const MemoryRegionOps iopmp_block_io_ops =3D { + .read_with_attrs =3D iopmp_block_read, + .write_with_attrs =3D iopmp_block_write, + .endianness =3D DEVICE_NATIVE_ENDIAN, + .valid =3D {.min_access_size =3D 1, .max_access_size =3D 8}, +}; + +static MemTxResult iopmp_handle_stall(IopmpState *s, hwaddr addr, + MemTxAttrs attrs) +{ + return MEMTX_IOPMP_STALL; +} + +static MemTxResult iopmp_stall_write(void *opaque, hwaddr addr, uint64_t v= alue, + unsigned size, MemTxAttrs attrs) +{ + IopmpState *s =3D IOPMP(opaque); + + return iopmp_handle_stall(s, addr, attrs); +} + +static MemTxResult iopmp_stall_read(void *opaque, hwaddr addr, uint64_t *p= data, + unsigned size, MemTxAttrs attrs) +{ + IopmpState *s =3D IOPMP(opaque); + + *pdata =3D 0; + return iopmp_handle_stall(s, addr, attrs); +} + +static const MemoryRegionOps iopmp_stall_io_ops =3D { + .read_with_attrs =3D iopmp_stall_read, + .write_with_attrs =3D iopmp_stall_write, + .endianness =3D DEVICE_NATIVE_ENDIAN, + .valid =3D {.min_access_size =3D 1, .max_access_size =3D 8}, +}; + +static void iopmp_realize(DeviceState *dev, Error **errp) +{ + Object *obj =3D OBJECT(dev); + SysBusDevice *sbd =3D SYS_BUS_DEVICE(dev); + IopmpState *s =3D IOPMP(dev); + s->downstream =3D get_system_memory(); + uint64_t size =3D memory_region_size(s->downstream); + + qemu_mutex_init(&s->iopmp_transaction_mutex); + s->prient_prog =3D 1; + s->sid_num =3D MIN(s->sid_num, IOPMP_MAX_SID_NUM); + s->md_num =3D MIN(s->md_num, IOPMP_MAX_MD_NUM); + s->entry_num =3D MIN(s->entry_num, IOPMP_MAX_ENTRY_NUM); + if (s->sid_transl_en) { + s->sid_transl_prog =3D 1; + } + if (!s->model_str || strcmp(s->model_str, "rapidk") =3D=3D 0) { + /* apply default model */ + s->model =3D IOPMP_MODEL_RAPIDK; + iopmp_set_field32(&s->regs.mdcfglck, MDCFGLCK_F, s->md_num); + iopmp_set_field32(&s->regs.mdcfglck, MDCFGLCK_L, 1); + s->regs.mdcfg[0] =3D s->k; + } else { + error_report("IOPMP model %s is not supported. " + "Vailid values is rapidk.", s->model_str); + exit(1); + } + memory_region_init_iommu(&s->iommu, sizeof(s->iommu), + TYPE_IOPMP_IOMMU_MEMORY_REGION, + obj, "iopmp-iommu", UINT64_MAX); + address_space_init(&s->iopmp_as, MEMORY_REGION(&s->iommu), "iommu"); + memory_region_init_io(&s->mmio, obj, &iopmp_ops, + s, "iopmp-regs", 0x100000); + sysbus_init_mmio(sbd, &s->mmio); + memory_region_init_io(&s->blocked_io, obj, &iopmp_block_io_ops, + s, "iopmp-blocked-io", size); + address_space_init(&s->downstream_as, s->downstream, + "iopmp-downstream-as"); + address_space_init(&s->blocked_io_as, &s->blocked_io, + "iopmp-blocked-io-as"); + + memory_region_init_io(&s->stall_io, obj, &iopmp_stall_io_ops, + s, "iopmp-stall-io", size); + address_space_init(&s->stall_io_as, &s->stall_io, + "iopmp-stall-io-as"); + + object_initialize_child(OBJECT(s), "iopmp_transaction_info", + &s->transaction_info_sink, + TYPE_IOPMP_TRASACTION_INFO_SINK); +} + +static void iopmp_reset(DeviceState *dev) +{ + IopmpState *s =3D IOPMP(dev); + qemu_set_irq(s->irq, 0); + memset(&s->regs, 0, sizeof(iopmp_regs)); + memset(&s->entry_addr, 0, IOPMP_MAX_ENTRY_NUM * sizeof(iopmp_addr_t)); + if (s->model =3D=3D IOPMP_MODEL_RAPIDK) { + iopmp_set_field32(&s->regs.mdcfglck, MDCFGLCK_F, s->md_num); + iopmp_set_field32(&s->regs.mdcfglck, MDCFGLCK_L, 1); + s->regs.mdcfg[0] =3D s->k; + } + s->regs.errreact =3D 0; + + s->prient_prog =3D 1; + if (s->sid_transl_en) { + s->sid_transl_prog =3D 1; + } +} + +static int iopmp_attrs_to_index(IOMMUMemoryRegion *iommu, MemTxAttrs attrs) +{ + unsigned int sid =3D attrs.requester_id; + return sid; +} + +static void iopmp_iommu_memory_region_class_init(ObjectClass *klass, void = *data) +{ + IOMMUMemoryRegionClass *imrc =3D IOMMU_MEMORY_REGION_CLASS(klass); + + imrc->translate =3D iopmp_translate; + imrc->attrs_to_index =3D iopmp_attrs_to_index; +} + +static Property iopmp_property[] =3D { + DEFINE_PROP_STRING("model", IopmpState, model_str), + DEFINE_PROP_BOOL("sps_en", IopmpState, sps_en, false), + DEFINE_PROP_BOOL("sid_transl_en", IopmpState, sid_transl_en, false), + DEFINE_PROP_UINT32("k", IopmpState, k, IOPMP_MODEL_K), + DEFINE_PROP_UINT32("prio_entry", IopmpState, prio_entry, PRIO_ENTRY), + DEFINE_PROP_UINT32("sid_num", IopmpState, sid_num, IOPMP_MAX_SID_NUM), + DEFINE_PROP_UINT32("md_num", IopmpState, md_num, IOPMP_MAX_MD_NUM), + DEFINE_PROP_UINT32("entry_num", IopmpState, entry_num, IOPMP_MAX_ENTRY= _NUM), + DEFINE_PROP_END_OF_LIST(), +}; + +static void iopmp_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc =3D DEVICE_CLASS(klass); + device_class_set_props(dc, iopmp_property); + dc->realize =3D iopmp_realize; + dc->reset =3D iopmp_reset; +} + +static void iopmp_init(Object *obj) +{ + IopmpState *s =3D IOPMP(obj); + SysBusDevice *sbd =3D SYS_BUS_DEVICE(obj); + sysbus_init_irq(sbd, &s->irq); +} + +static const TypeInfo iopmp_info =3D { + .name =3D TYPE_IOPMP, + .parent =3D TYPE_SYS_BUS_DEVICE, + .instance_size =3D sizeof(IopmpState), + .instance_init =3D iopmp_init, + .class_init =3D iopmp_class_init, +}; + +static const TypeInfo +iopmp_iommu_memory_region_info =3D { + .name =3D TYPE_IOPMP_IOMMU_MEMORY_REGION, + .parent =3D TYPE_IOMMU_MEMORY_REGION, + .class_init =3D iopmp_iommu_memory_region_class_init, +}; + +DeviceState *iopmp_create(hwaddr addr, qemu_irq irq) +{ + LOG("%s:\n", __func__); + DeviceState *iopmp_device =3D sysbus_create_varargs(TYPE_IOPMP, addr, = irq, + NULL); + return iopmp_device; +} + +void +cascade_iopmp(DeviceState *cur_dev, DeviceState *next_dev) +{ + IopmpState *s =3D IOPMP(cur_dev); + s->sid_transl_en =3D true; + IopmpState *next_s =3D IOPMP(next_dev); + s->next_iommu =3D &next_s->iommu; +} + +static size_t +transaction_info_push(StreamSink *transaction_info_sink, unsigned char *bu= f, + size_t len, bool eop) +{ + Iopmp_StreamSink *ss =3D IOPMP_TRASACTION_INFO_SINK(transaction_info_s= ink); + IopmpState *s =3D IOPMP(container_of(ss, IopmpState, + transaction_info_sink)); + iopmp_transaction_info signal; + memcpy(&signal, buf, len); + uint32_t sid =3D signal.sid; + if (s->transaction_state[sid].running) { + if (eop) { + qemu_mutex_lock(&s->iopmp_transaction_mutex); + s->transaction_state[sid].running =3D 0; + qemu_mutex_unlock(&s->iopmp_transaction_mutex); + return 1; + } else { + return 0; + } + } else if (len =3D=3D sizeof(iopmp_transaction_info)) { + s->transaction_state[sid].supported =3D 1; + qemu_mutex_lock(&s->iopmp_transaction_mutex); + s->transaction_state[sid].running =3D 1; + qemu_mutex_unlock(&s->iopmp_transaction_mutex); + s->transaction_state[sid].start_addr =3D signal.start_addr; + s->transaction_state[sid].end_addr =3D signal.end_addr; + return 1; + } + return 0; +} + +static void iopmp_transaction_info_sink_class_init(ObjectClass *klass, + void *data) +{ + StreamSinkClass *ssc =3D STREAM_SINK_CLASS(klass); + ssc->push =3D transaction_info_push; +} + +static const TypeInfo transaction_info_sink =3D { + .name =3D TYPE_IOPMP_TRASACTION_INFO_SINK, + .parent =3D TYPE_OBJECT, + .instance_size =3D sizeof(Iopmp_StreamSink), + .class_init =3D iopmp_transaction_info_sink_class_init, + .interfaces =3D (InterfaceInfo[]) { + { TYPE_STREAM_SINK }, + { } + }, +}; + +static void +iopmp_register_types(void) +{ + type_register_static(&iopmp_info); + type_register_static(&iopmp_iommu_memory_region_info); + type_register_static(&transaction_info_sink); +} + +type_init(iopmp_register_types); diff --git a/include/hw/misc/riscv_iopmp.h b/include/hw/misc/riscv_iopmp.h new file mode 100644 index 0000000000..e679ffe5da --- /dev/null +++ b/include/hw/misc/riscv_iopmp.h @@ -0,0 +1,341 @@ +/* + * QEMU RISC-V IOPMP (Input Output Physical Memory Protection) + * + * Copyright (c) 2023 Andes Tech. Corp. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2 or later, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License f= or + * more details. + * + * You should have received a copy of the GNU General Public License along= with + * this program. If not, see . + */ + +#ifndef RISCV_IOPMP_H +#define RISCV_IOPMP_H + +#include "hw/sysbus.h" +#include "qemu/typedefs.h" +#include "memory.h" +#include "hw/stream.h" +#include "hw/misc/riscv_iopmp_transaction_info.h" + +#define TYPE_IOPMP "iopmp" +#define IOPMP(obj) OBJECT_CHECK(IopmpState, (obj), TYPE_IOPMP) + +#define iopmp_get_field(reg, name) (((reg) & (name ## _FIELD)) >> (name)) +#define iopmp_set_field32(reg, name, newval) do { \ + uint32_t val =3D *reg; \ + val &=3D ~name##_FIELD; \ + val |=3D ((newval) << name) & name##_FIELD; \ + *reg =3D val; \ + } while (0) +#define iopmp_set_field64(reg, name, newval) do { \ + uint64_t val =3D *reg; \ + val &=3D ~name##_FIELD; \ + val |=3D ((newval) << name) & name##_FIELD; \ + *reg =3D val; \ + } while (0) + + +#define IOPMP_MAX_MD_NUM 63 +#define IOPMP_MAX_SID_NUM 256 +#define IOPMP_MAX_ENTRY_NUM 512 + +#define IOPMP_VERSION 0x0 +#define IOPMP_IMP 0x4 +#define IOPMP_HWCFG0 0x8 +#define IOPMP_HWCFG1 0xC +#define IOPMP_HWCFG2 0x10 +#define IOPMP_ENTRYOFFSET 0x20 +#define IOPMP_ERRREACT 0x28 +#define IOPMP_MDSTALL 0x30 +#define IOPMP_MDSTALLH 0x34 +#define IOPMP_SIDSCP 0x38 +#define IOPMP_MDLCK 0x40 +#define IOPMP_MDLCKH 0x44 +#define IOPMP_MDCFGLCK 0x48 +#define IOPMP_ENTRYLCK 0x4C + +#define IOPMP_ERR_REQADDR 0x60 +#define IOPMP_ERR_REQADDRH 0x64 +#define IOPMP_ERR_REQSID 0x68 +#define IOPMP_ERR_REQINFO 0x6C + +#define IOPMP_MDCFG0 0x800 +#define IOPMP_SRCMD_EN0 0x1000 +#define IOPMP_SRCMD_ENH0 0x1004 +#define IOPMP_SRCMD_R0 0x1008 +#define IOPMP_SRCMD_RH0 0x100C +#define IOPMP_SRCMD_W0 0x1010 +#define IOPMP_SRCMD_WH0 0x1014 + +#define IOPMP_ENTRY_ADDR0 0x4000 +#define IOPMP_ENTRY_ADDRH0 0x4004 +#define IOPMP_ENTRY_CFG0 0x4008 +#define IOPMP_USER_CFG0 0x400C + +#define VERSION_VENDOR 0 +#define VERSION_SPECVER 24 +#define VENDER_ANDES 6533 +#define SPECVER_1_0_0_DRAFT4 4 + +#define IMPID_1_0_0_DRAFT4_0 10040 + +#define HWCFG0_SID_NUM 0 +#define HWCFG0_ENTRY_NUM 16 + +#define HWCFG1_MODEL 0 +#define HWCFG1_TOR_EN 4 +#define HWCFG1_SPS_EN 5 +#define HWCFG1_USER_CFG_EN 6 +#define HWCFG1_PRIENT_PROG 7 +#define HWCFG1_SID_TRANSL_EN 8 +#define HWCFG1_SID_TRANSL_PROG 9 +#define HWCFG1_MD_NUM 24 +#define HWCFG1_ENABLE 31 + +#define HWCFG1_SPS_EN_FIELD (1 << HWCFG1_SPS_EN) +#define HWCFG1_PRIENT_PROG_FIELD (1 << HWCFG1_PRIENT_PROG) +#define HWCFG1_SID_TRANSL_PROG_FIELD (1 << HWCFG1_SID_TRANSL_PROG) +#define HWCFG1_ENABLE_FIELD (1 << HWCFG1_ENABLE) + +#define HWCFG2_PRIO_ENTRY 0 +#define HWCFG2_SID_TRANSL 16 + +#define HWCFG2_PRIO_ENTRY_FIELD (0xFFFF << HWCFG2_PRIO_ENTRY) +#define HWCFG2_SID_TRANSL_FIELD (0xFFFF << HWCFG2_SID_TRANSL) + +#define ERRREACT_L 0 +#define ERRREACT_IE 1 +#define ERRREACT_IP 2 +#define ERRREACT_IRE 4 +#define ERRREACT_RRE 5 +#define ERRREACT_IWE 8 +#define ERRREACT_RWE 9 +#define ERRREACT_PEE 28 +#define ERRREACT_RPE 29 + +#define ERRREACT_L_FIELD (0x1 << ERRREACT_L) +#define ERRREACT_IE_FIELD (0x1 << ERRREACT_IE) +#define ERRREACT_IP_FIELD (0x1 << ERRREACT_IP) +#define ERRREACT_IRE_FIELD (0x1 << ERRREACT_IRE) +#define ERRREACT_RRE_FIELD (0x7 << ERRREACT_RRE) +#define ERRREACT_IWE_FIELD (0x1 << ERRREACT_IWE) +#define ERRREACT_RWE_FIELD (0x7 << ERRREACT_RWE) +#define ERRREACT_PEE_FIELD (0x1 << ERRREACT_PEE) +#define ERRREACT_RPE_FIELD (0x7 << ERRREACT_RPE) + +#define RRE_BUS_ERROR 0 +#define RRE_DECODE_ERROR 1 +#define RRE_SUCCESS_ZEROS 2 +#define RRE_SUCCESS_ONES 3 + +#define RWE_BUS_ERROR 0 +#define RWE_DECODE_ERROR 1 +#define RWE_SUCCESS 2 + +#define MDSTALL 0 +#define MDSTALLH 32 +#define MDSTALL_FIELD UINT32_MAX +#define MDSTALLH_FIELD (UINT64_MAX << MDSTALLH) +#define MDSTALL_EXEMPT 0 +#define MDSTALL_EXEMPT_FIELD (1 << MDSTALL_EXEMPT) +#define MDSTALL_ISSTALLED 0 +#define MDSTALL_MD 1 +#define MDSTALL_MD_FIELD (0x7FFFFFFFFFFFFFFF << MDSTALL_MD) + +#define SIDSCP_SID 0 +#define SIDSCP_STAT 30 +#define SIDSCP_OP 30 +#define SIDSCP_SID_FIELD (0xFFFF << SIDSCP_SID) +#define SIDSCP_STAT_FIELD (0x3 << SIDSCP_STAT) +#define SIDSCP_OP_FIELD (0x3 << SIDSCP_OP) +#define SIDSCP_OP_QUERY 0 +#define SIDSCP_OP_STALL 1 +#define SIDSCP_OP_NOTSTALL 2 + +#define MDLCK_L 0 +#define MDLCK_MD 1 + +#define MDCFGLCK_L 0 +#define MDCFGLCK_L_FIELD (0x1 << MDCFGLCK_L) +#define MDCFGLCK_F 1 +#define MDCFGLCK_F_FIELD (0x7F << MDCFGLCK_F) + +#define ENTRYLCK_L 0 +#define ENTRYLCK_L_FIELD (0x1 << MDCFGLCK_L) +#define ENTRYLCK_F 1 +#define ENTRYLCK_F_FIELD (0xFFFF << ENTRYLCK_F) + +#define ERR_REQINFO_NO_HIT 0 +#define ERR_REQINFO_PAR_HIT 1 +#define ERR_REQINFO_TYPE 8 +#define ERR_REQINFO_EID 16 + +#define ERR_REQINFO_NO_HIT_FIELD (0x1 << ERR_REQINFO_NO_HIT) +#define ERR_REQINFO_PAR_HIT_FIELD (0x1 << ERR_REQINFO_PAR_HIT) +#define ERR_REQINFO_TYPE_FIELD (0x3 << ERR_REQINFO_TYPE) +#define ERR_REQINFO_EID_FIELD (0xFFFF << ERR_REQINFO_EID) + +#define ERR_REQINFO_TYPE_READ 0 +#define ERR_REQINFO_TYPE_WRITE 1 +#define ERR_REQINFO_TYPE_USER 3 + +#define SRCMD_EN_L 0 +#define SRCMD_EN_MD 1 +#define SRCMD_EN_L_FIELD (0x1 << SRCMD_EN_L) +#define SRCMD_EN_MD_FIELD (0x7FFFFFFF << SRCMD_EN_MD) +#define SRCMD_ENH_MDH 32 +#define SRCMD_ENH_MDH_FIELD (0xFFFFFFFFUL << SRCMD_ENH_MDH) + +#define SRCMD_R_MD 1 +#define SRCMD_R_MD_FIELD (0x7FFFFFFF << SRCMD_R_MD) +#define SRCMD_RH_MDH 32 +#define SRCMD_RH_MDH_FIELD (0xFFFFFFFFUL << SRCMD_RH_MDH) +#define SRCMD_W_MD 1 +#define SRCMD_W_MD_FIELD (0x7FFFFFFF << SRCMD_W_MD) +#define SRCMD_WH_MDH 32 +#define SRCMD_WH_MDH_FIELD (0xFFFFFFFFUL << SRCMD_WH_MDH) + +#define ENTRY_ADDR_ADDR 0 +#define ENTRY_ADDR_ADDR_FIELD 0xFFFFFFFF +#define ENTRY_ADDRH_ADDRH 32 +#define ENTRY_ADDRH_ADDRH_FIELD (0xFFFFFFFFUL << ENTRY_ADDRH_ADDRH) + +#define ENTRY_CFG_R 0 +#define ENTRY_CFG_W 1 +#define ENTRY_CFG_X 2 +#define ENTRY_CFG_A 3 +#define ENTRY_CFG_A_FIELD (0x3 << ENTRY_CFG_A) + +#define IOPMP_MODEL_FULL 0 +#define IOPMP_MODEL_RAPIDK 0x1 +#define IOPMP_MODEL_DYNAMICK 0x2 +#define IOPMP_MODEL_ISOLATION 0x3 +#define IOPMP_MODEL_COMPACTK 0x4 +#define IOPMP_MODEL_K 8 + +#define TOR_EN 1 +#define SPS_EN 0 +#define USER_CFG_EN 0 +#define PROG_PRIENT 1 +#define PRIO_ENTRY IOPMP_MAX_ENTRY_NUM +#define SID_TRANSL_EN 0 +#define SID_TRANSL 0 + +#define ENTRY_NO_HIT 0 +#define ENTRY_PAR_HIT 1 +#define ENTRY_HIT 2 + +#define AXI_BURST_TYPE_FIX 0 +#define AXI_BURST_TYPE_INC 1 + +typedef enum { + IOPMP_READ =3D 1 << 0, + IOPMP_WRITE =3D 1 << 1, + IOPMP_EXEC =3D 1 << 2, + IOPMP_ADDRMODE =3D 1 << 3, +} iopmp_priv_t; + +typedef enum { + IOPMP_AMATCH_OFF, /* Null (off) */ + IOPMP_AMATCH_TOR, /* Top of Range */ + IOPMP_AMATCH_NA4, /* Naturally aligned four-byte region */ + IOPMP_AMATCH_NAPOT /* Naturally aligned power-of-two region */ +} iopmp_am_t; + +typedef struct { + uint64_t addr_reg; + uint32_t cfg_reg; +} iopmp_entry_t; + +typedef struct { + target_ulong sa; + target_ulong ea; +} iopmp_addr_t; + +typedef struct { + uint64_t srcmd_en[IOPMP_MAX_SID_NUM]; + uint64_t srcmd_r[IOPMP_MAX_SID_NUM]; + uint64_t srcmd_w[IOPMP_MAX_SID_NUM]; + uint32_t mdcfg[IOPMP_MAX_MD_NUM]; + iopmp_entry_t entry[IOPMP_MAX_ENTRY_NUM]; + uint64_t mdmsk; + uint64_t mdlck; + uint32_t entrylck; + uint32_t mdcfglck; + uint32_t arrlck; + uint64_t mdstall; + uint32_t sidscp; + uint32_t errreact; + uint64_t err_reqaddr; + uint32_t err_reqsid; + uint32_t err_reqinfo; +} iopmp_regs; + +/* To verfiy the same transcation */ +typedef struct iopmp_transaction_state { + bool supported; + bool running; + hwaddr start_addr; + hwaddr end_addr; +} iopmp_transaction_state; + +typedef struct iopmp_error_info { + uint32_t reqinfo; + hwaddr start_addr; + hwaddr end_addr; +} iopmp_error_info; + +typedef struct Iopmp_StreamSink { + Object parent; +} Iopmp_StreamSink; + +typedef struct IopmpState { + SysBusDevice parent_obj; + iopmp_addr_t entry_addr[IOPMP_MAX_ENTRY_NUM]; + iopmp_transaction_state transaction_state[IOPMP_MAX_SID_NUM]; + QemuMutex iopmp_transaction_mutex; + iopmp_error_info prev_error_info[IOPMP_MAX_SID_NUM]; + MemoryRegion mmio; + IOMMUMemoryRegion iommu; + IOMMUMemoryRegion *next_iommu; + iopmp_regs regs; + MemoryRegion *downstream; + MemoryRegion blocked_io; + MemoryRegion stall_io; + char *model_str; + uint32_t model; + uint32_t k; + bool sps_en; + bool sid_transl_prog; + bool prient_prog; + bool sid_transl_en; + uint32_t sid_transl; + Iopmp_StreamSink transaction_info_sink; + + AddressSpace iopmp_as; + AddressSpace downstream_as; + AddressSpace blocked_io_as; + AddressSpace stall_io_as; + qemu_irq irq; + bool enable; + uint32_t sidscp_op[IOPMP_MAX_SID_NUM]; + uint64_t md_stall_stat; + uint32_t prio_entry; + + uint32_t sid_num; + uint32_t md_num; + uint32_t entry_num; +} IopmpState; + +DeviceState *iopmp_create(hwaddr addr, qemu_irq irq); +void cascade_iopmp(DeviceState *cur_dev, DeviceState *next_dev); + +#endif diff --git a/include/hw/misc/riscv_iopmp_transaction_info.h b/include/hw/mi= sc/riscv_iopmp_transaction_info.h new file mode 100644 index 0000000000..fd12fd214c --- /dev/null +++ b/include/hw/misc/riscv_iopmp_transaction_info.h @@ -0,0 +1,28 @@ +/* + * QEMU RISC-V IOPMP (Input Output Physical Memory Protection) + * + * Copyright (c) 2023 Andes Tech. Corp. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2 or later, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License f= or + * more details. + * + * You should have received a copy of the GNU General Public License along= with + * this program. If not, see . + */ + +#ifndef RISCV_IOPMP_TRANSACTION_INFO_H +#define RISCV_IOPMP_TRANSACTION_INFO_H + +typedef struct { + uint32_t sid:16; + uint64_t start_addr; + uint64_t end_addr; +} iopmp_transaction_info; + +#endif --=20 2.34.1