From patchwork Thu Sep 14 08:07:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikita Shubin X-Patchwork-Id: 13384779 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 DEE6CEDE994 for ; Thu, 14 Sep 2023 08:09:05 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qghOI-0001Lb-O8; Thu, 14 Sep 2023 04:07:58 -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 1qghOG-0001KZ-PG; Thu, 14 Sep 2023 04:07:56 -0400 Received: from forward100b.mail.yandex.net ([2a02:6b8:c02:900:1:45:d181:d100]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qghOC-0006bY-0z; Thu, 14 Sep 2023 04:07:56 -0400 Received: from mail-nwsmtp-smtp-production-main-87.sas.yp-c.yandex.net (mail-nwsmtp-smtp-production-main-87.sas.yp-c.yandex.net [IPv6:2a02:6b8:c08:9396:0:640:dd2a:0]) by forward100b.mail.yandex.net (Yandex) with ESMTP id AEFE16011B; Thu, 14 Sep 2023 11:07:43 +0300 (MSK) Received: by mail-nwsmtp-smtp-production-main-87.sas.yp-c.yandex.net (smtp/Yandex) with ESMTPSA id e7bUnJIDWmI0-IoemQWCy; Thu, 14 Sep 2023 11:07:42 +0300 X-Yandex-Fwd: 1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=maquefel.me; s=mail; t=1694678862; bh=YffXOR8/pU98jYze630tcD97bX9Dr0NEo3XPewdEIJA=; h=Message-Id:Date:Cc:Subject:To:From; b=opru8xFPpQAC7ILPEc8+pdCm0ncwF3UF2tq9+Q3VsVGP2DZEsdVVOBdRbuE/QkSKG cEMvRU+3wpYQRGBHBoqfYQoVbGns5xFD8DloQTJyxH5l+B/HfEXfXb0sPnkJRSQCw0 +zQEDxA4a/pMDFYsfiBtbz4+YV2t4ysdiNygCTrM= Authentication-Results: mail-nwsmtp-smtp-production-main-87.sas.yp-c.yandex.net; dkim=pass header.i=@maquefel.me From: Nikita Shubin To: Palmer Dabbelt , Alistair Francis , Bin Meng , Weiwei Li , Daniel Henrique Barboza , Liu Zhiwei , Sunil V L Cc: Nikita Shubin , qemu-riscv@nongnu.org, qemu-devel@nongnu.org Subject: [RFC PATCH v2 0/2] hw/riscv: hart: allow other cpu instance Date: Thu, 14 Sep 2023 11:07:38 +0300 Message-Id: <20230914080740.7561-1-nikita.shubin@maquefel.me> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Received-SPF: pass client-ip=2a02:6b8:c02:900:1:45:d181:d100; envelope-from=nikita.shubin@maquefel.me; helo=forward100b.mail.yandex.net X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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 From: Nikita Shubin Currently it is not possible to overload instance of RISCVCPU, i.e. something like this: static const TypeInfo riscv_cpu_type_infos[] = { { .name = TYPE_ANOTHER_RISCV_CPU, .parent = TYPE_RISCV_CPU, .instance_size = sizeof(MyCPUState), .instance_init = riscv_my_cpu_init, } }; Because we have RISCVHartArrayState.harts with exactly the size of RISCVCPU. Using own instances can be used to store some internal hart state. Cc: Daniel Henrique Barboza Link: https://patchwork.kernel.org/project/qemu-devel/patch/20230727080545.7908-1-nikita.shubin@maquefel.me/ Nikita Shubin (2): hw/riscv: hart: replace array access with qemu_get_cpu() hw/riscv: hart: allow other cpu instance hw/riscv/boot.c | 6 ++++-- hw/riscv/riscv_hart.c | 20 ++++++++++++-------- hw/riscv/sifive_u.c | 7 +++++-- hw/riscv/spike.c | 17 ++++++++++------- hw/riscv/virt-acpi-build.c | 2 +- hw/riscv/virt.c | 17 +++++++++-------- include/hw/riscv/riscv_hart.h | 2 +- 7 files changed, 42 insertions(+), 29 deletions(-)