From patchwork Tue Aug 13 23:23:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mauro Carvalho Chehab X-Patchwork-Id: 13762681 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 09A86C52D7B for ; Tue, 13 Aug 2024 23:24:57 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1se0sG-00005t-Qo; Tue, 13 Aug 2024 19:24:20 -0400 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 1se0sE-0008PG-Qz; Tue, 13 Aug 2024 19:24:18 -0400 Received: from sin.source.kernel.org ([2604:1380:40e1:4800::1]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1se0sB-0006qK-DK; Tue, 13 Aug 2024 19:24:18 -0400 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id 2D9A4CE1841; Tue, 13 Aug 2024 23:24:12 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 59041C4AF0E; Tue, 13 Aug 2024 23:24:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1723591451; bh=IYrtvsBCzlGe0MTkFkAK6noEUXQNZZJDowRzzCJAOeI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sagI4dlxetlku/RcQZDKH4+9wkeMTAjfuW0Z7K8tEg0ibY5f8yEyFHbPAbERsS4o3 fig0bcYP7/Kh6ECXL6aGGNDgUJmGo3+mbcBYXE3D39ulCXQuO4nxiCBNTM0136Vnxz CccOxVDAmWnQ0ir4y3KeGXJ6NTiBnaI0asqCRPGS3/ru5pksn1ocotIuDkRyQ69t8q rQjRl7/NOuCq751AF4LTx5KLb04s6nzD6iN9aKDakKMhgNiuhX8bofCioZl/Tel+jU MVE6yoE6LRlWMnWm9YO0nr2dkiEFrA2b1eZSxf5IPpHT4OHgmUtPzlRmTPb6+HQSZm Q0ZTRV/2GUNFQ== Received: from mchehab by mail.kernel.org with local (Exim 4.98) (envelope-from ) id 1se0s5-00000002asg-26g7; Wed, 14 Aug 2024 01:24:09 +0200 From: Mauro Carvalho Chehab To: Cc: Jonathan Cameron , Shiju Jose , Mauro Carvalho Chehab , Peter Maydell , linux-kernel@vger.kernel.org, qemu-arm@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH v7 09/10] target/arm: add an experimental mpidr arm cpu property object Date: Wed, 14 Aug 2024 01:23:31 +0200 Message-ID: X-Mailer: git-send-email 2.46.0 In-Reply-To: References: MIME-Version: 1.0 Received-SPF: pass client-ip=2604:1380:40e1:4800::1; envelope-from=mchehab+huawei@kernel.org; helo=sin.source.kernel.org X-Spam_score_int: -44 X-Spam_score: -4.5 X-Spam_bar: ---- X-Spam_report: (-4.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.125, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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 Accurately injecting an ARM Processor error ACPI/APEI GHES error record requires the value of the ARM Multiprocessor Affinity Register (mpidr). While ARM implements it, this is currently not visible. Add a field at CPU storing it, and place it at arm_cpu_properties as experimental, thus allowing it to be queried via QMP using qom-get function. Signed-off-by: Mauro Carvalho Chehab --- target/arm/cpu.c | 1 + target/arm/cpu.h | 1 + target/arm/helper.c | 10 ++++++++-- 3 files changed, 10 insertions(+), 2 deletions(-) diff --git a/target/arm/cpu.c b/target/arm/cpu.c index 19191c239181..30fcf0a10f46 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -2619,6 +2619,7 @@ static ObjectClass *arm_cpu_class_by_name(const char *cpu_model) static Property arm_cpu_properties[] = { DEFINE_PROP_UINT64("midr", ARMCPU, midr, 0), + DEFINE_PROP_UINT64("x-mpidr", ARMCPU, mpidr, 0), DEFINE_PROP_UINT64("mp-affinity", ARMCPU, mp_affinity, ARM64_AFFINITY_INVALID), DEFINE_PROP_INT32("node-id", ARMCPU, node_id, CPU_UNSET_NUMA_NODE_ID), diff --git a/target/arm/cpu.h b/target/arm/cpu.h index a12859fc5335..d2e86f0877cc 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -1033,6 +1033,7 @@ struct ArchCPU { uint64_t reset_pmcr_el0; } isar; uint64_t midr; + uint64_t mpidr; uint32_t revidr; uint32_t reset_fpsid; uint64_t ctr; diff --git a/target/arm/helper.c b/target/arm/helper.c index 8fb4b474e83f..16e75b7c5ed9 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -4692,7 +4692,7 @@ static uint64_t mpidr_read_val(CPUARMState *env) return mpidr; } -static uint64_t mpidr_read(CPUARMState *env, const ARMCPRegInfo *ri) +static uint64_t mpidr_read(CPUARMState *env) { unsigned int cur_el = arm_current_el(env); @@ -4702,6 +4702,11 @@ static uint64_t mpidr_read(CPUARMState *env, const ARMCPRegInfo *ri) return mpidr_read_val(env); } +static uint64_t mpidr_read_ri(CPUARMState *env, const ARMCPRegInfo *ri) +{ + return mpidr_read(env); +} + static const ARMCPRegInfo lpae_cp_reginfo[] = { /* NOP AMAIR0/1 */ { .name = "AMAIR0", .state = ARM_CP_STATE_BOTH, @@ -9723,7 +9728,7 @@ void register_cp_regs_for_features(ARMCPU *cpu) { .name = "MPIDR_EL1", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 5, .fgt = FGT_MPIDR_EL1, - .access = PL1_R, .readfn = mpidr_read, .type = ARM_CP_NO_RAW }, + .access = PL1_R, .readfn = mpidr_read_ri, .type = ARM_CP_NO_RAW }, }; #ifdef CONFIG_USER_ONLY static const ARMCPRegUserSpaceInfo mpidr_user_cp_reginfo[] = { @@ -9733,6 +9738,7 @@ void register_cp_regs_for_features(ARMCPU *cpu) modify_arm_cp_regs(mpidr_cp_reginfo, mpidr_user_cp_reginfo); #endif define_arm_cp_regs(cpu, mpidr_cp_reginfo); + cpu->mpidr = mpidr_read(env); } if (arm_feature(env, ARM_FEATURE_AUXCR)) {