From patchwork Thu Dec 21 17:51:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Henrique Barboza X-Patchwork-Id: 13502480 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 1C485C46CD8 for ; Thu, 21 Dec 2023 17:54:23 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rGNDT-0002aL-Na; Thu, 21 Dec 2023 12:52:16 -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 1rGNDH-0002WZ-Mk for qemu-devel@nongnu.org; Thu, 21 Dec 2023 12:52:03 -0500 Received: from mail-pf1-x429.google.com ([2607:f8b0:4864:20::429]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1rGNDG-0007xi-1V for qemu-devel@nongnu.org; Thu, 21 Dec 2023 12:52:03 -0500 Received: by mail-pf1-x429.google.com with SMTP id d2e1a72fcca58-6d7e67d31caso732393b3a.1 for ; Thu, 21 Dec 2023 09:52:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1703181119; x=1703785919; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=MKdlUY8svMA94b9jq+C+gEiT6a/yET6zQAAKKTsFHh8=; b=pj+41EAWm5bKiFX7g1uyTo1/U6as4eeeErRTXTGIROL8tpwZqcJKlmPHouI10v9krj O9LW7EEU152l0hHEQXr2Hj1jS2ulgL9Z5DrBP3TP+KXL1JasyO96t3rItu7FIjp7l8X0 +YUZhURnbHsjz/fJ1eqmO7Ir2ZZFm9xJABSy4odNB9t5xPrJzhHkVzH3mPFrTeCL78ki zuYIM181liUtk2q6i+ITrLLiONyATPVm4nc/eq55VX20C8IKWTfGfIpkCIsPZD9J+hsU zwk5jFsLlE1GcXxgX5+JfSI68idnLXXxnaEw5h7UH7iYCI1exFu4DDE7Ed1prSmEw7WB ITtA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1703181119; x=1703785919; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=MKdlUY8svMA94b9jq+C+gEiT6a/yET6zQAAKKTsFHh8=; b=NtKB5CrR1okiPfn6X94KbnKDVi4Z/Ep4jHb+IwonD8hAax+I0pTjFyVeCxCj4zsInG CGKDxFuV0MMtUm47PvxaXaXSUFtx4njzUpIN2fRMRcPbrrfqX75V2JhLIdkliGZTPJdv YgvJwCBuSsQIVCAhmuW0PVgSTKpwcoz7UQgIasziy3ytAAUDU3GntHc8otbSr8FDFT+8 bLGnOZcLwfx/3j2T9zmmrQU8TgY2cbvTPLP7XcNHBrA0CSBRA5uY0AFtQeEedeGOet84 ae081ZXCGkv8jwTxPEzBu7qORHtugJIHQl7HDFv/OBLdE9efjdW0kjZfRj6W8Y/XMANb xdDQ== X-Gm-Message-State: AOJu0Yx7OIHV9XfG5hZ+zBnw5NsncpV3buAz81JdogphLB/dFshnbUiE sS7GmU2a5gZ4RWo996sdQCA8JycWjy/uds/7CxYgez4x7KH6dg== X-Google-Smtp-Source: AGHT+IFyNjfk/OTikiIToyX2lPHzcyjvt0bmANJVLtxHPAB3JxmDGRx7lCUnKGoS5hwuDGEeqehi5g== X-Received: by 2002:a05:6a20:bb14:b0:194:a2e9:aa04 with SMTP id fc20-20020a056a20bb1400b00194a2e9aa04mr52154pzb.11.1703181119353; Thu, 21 Dec 2023 09:51:59 -0800 (PST) Received: from grind.dc1.ventanamicro.com ([179.93.21.205]) by smtp.gmail.com with ESMTPSA id w10-20020a63f50a000000b005b18c53d73csm1806261pgh.16.2023.12.21.09.51.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 Dec 2023 09:51:58 -0800 (PST) From: Daniel Henrique Barboza To: qemu-devel@nongnu.org Cc: qemu-riscv@nongnu.org, alistair.francis@wdc.com, bmeng@tinylab.org, liwei1518@gmail.com, zhiwei_liu@linux.alibaba.com, palmer@rivosinc.com, ajones@ventanamicro.com, Daniel Henrique Barboza Subject: [PATCH 05/16] target/riscv: move 'pmp' to riscv_cpu_properties[] Date: Thu, 21 Dec 2023 14:51:26 -0300 Message-ID: <20231221175137.497379-6-dbarboza@ventanamicro.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20231221175137.497379-1-dbarboza@ventanamicro.com> References: <20231221175137.497379-1-dbarboza@ventanamicro.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::429; envelope-from=dbarboza@ventanamicro.com; helo=mail-pf1-x429.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable 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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Move 'pmp' to riscv_cpu_properties[], creating a new setter() for it that forbids 'pmp' to be changed in vendor CPUs, like we did with the 'mmu' option. We'll also have to manually set 'pmp = true' to generic CPUs that were still relying on the previous default to set it. Signed-off-by: Daniel Henrique Barboza --- target/riscv/cpu.c | 37 +++++++++++++++++++++++++++++++++++-- 1 file changed, 35 insertions(+), 2 deletions(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 90dd2bccf6..cd20489f1b 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -411,6 +411,7 @@ static void riscv_max_cpu_init(Object *obj) RISCVMXL mlx = MXL_RV64; cpu->cfg.mmu = true; + cpu->cfg.pmp = true; #ifdef TARGET_RISCV32 mlx = MXL_RV32; @@ -430,6 +431,7 @@ static void rv64_base_cpu_init(Object *obj) CPURISCVState *env = &cpu->env; cpu->cfg.mmu = true; + cpu->cfg.pmp = true; /* We set this in the realise function */ riscv_cpu_set_misa(env, MXL_RV64, 0); @@ -559,6 +561,7 @@ static void rv128_base_cpu_init(Object *obj) } cpu->cfg.mmu = true; + cpu->cfg.pmp = true; /* We set this in the realise function */ riscv_cpu_set_misa(env, MXL_RV128, 0); @@ -575,6 +578,7 @@ static void rv32_base_cpu_init(Object *obj) CPURISCVState *env = &cpu->env; cpu->cfg.mmu = true; + cpu->cfg.pmp = true; /* We set this in the realise function */ riscv_cpu_set_misa(env, MXL_RV32, 0); @@ -1526,9 +1530,37 @@ const PropertyInfo prop_mmu = { .set = prop_mmu_set, }; -Property riscv_cpu_options[] = { - DEFINE_PROP_BOOL("pmp", RISCVCPU, cfg.pmp, true), +static void prop_pmp_set(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) +{ + RISCVCPU *cpu = RISCV_CPU(obj); + bool value; + + visit_type_bool(v, name, &value, errp); + if (cpu->cfg.pmp != value && riscv_cpu_is_vendor(obj)) { + cpu_set_prop_err(cpu, name, errp); + return; + } + + cpu->cfg.pmp = value; +} + +static void prop_pmp_get(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) +{ + bool value = RISCV_CPU(obj)->cfg.pmp; + + visit_type_bool(v, name, &value, errp); +} + +const PropertyInfo prop_pmp = { + .name = "pmp", + .get = prop_pmp_get, + .set = prop_pmp_set, +}; + +Property riscv_cpu_options[] = { DEFINE_PROP_STRING("priv_spec", RISCVCPU, cfg.priv_spec), DEFINE_PROP_STRING("vext_spec", RISCVCPU, cfg.vext_spec), @@ -1549,6 +1581,7 @@ static Property riscv_cpu_properties[] = { {.name = "pmu-num", .info = &prop_pmu_num}, /* Deprecated */ {.name = "mmu", .info = &prop_mmu}, + {.name = "pmp", .info = &prop_pmp}, #ifndef CONFIG_USER_ONLY DEFINE_PROP_UINT64("resetvec", RISCVCPU, env.resetvec, DEFAULT_RSTVEC),