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 X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8194FC433B4 for ; Wed, 19 May 2021 04:58:37 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id EDFB3611AE for ; Wed, 19 May 2021 04:58:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EDFB3611AE Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=5TiD1t1gnmDCbtC9aXigu9IUjEp49SePC1H0gmfyoG0=; b=hGBo2e5tmPEF1kCBjCQNQ5Dry 6qUD7faYa5foyNHzXAuc5gTyaN/84JMHUZZXq7Y3xyzoLhTtHSuEpUe/vn5TxGFJvVoOMCzv9OupI JoSAmprc0rH8vkGMN0Ub7XRKXatGazhmBTJ9OqMIbDnU4tr0eTPQUljTLGLUT7Mut3zm1c0CttNsL 3s0qXIqIKT3cNNYgYrPvwMnvw1QpE1wJPxntgcQHvp0+HttGSTwqf5+Hek3OjgHba0ryK8pgFJThc 35abNw7U/XLl013CUyBpGpqzn2ZzvaRBSZDv7OdIhX/VlRBvDwqM507K9rj5yJRfJDSJ2o5saUqQ0 5xmTTGxdw==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1ljEHk-002n6B-Lu; Wed, 19 May 2021 04:58:20 +0000 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1ljEHi-002n5c-0t; Wed, 19 May 2021 04:58:18 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=csdUSvqAIZHztgcaoOz7V99/GT/WtC4a20iIKny5ugU=; b=pRMdTDfuHiUqoA1ZUAL5UN+CBV 9ZnnYkXNLD8FpldVzyRCx+MSLaQOOnx7ZcjNOTGEn5ExgudGY8Sb8B9r/a+mJdFp2AdvbGW27TUv8 gzcvy89QwV/TRLAr+DY5A2Y0QkcW+gAdHod5nTuuSUrm4xoFfYikTHn//iILCmxYjpRSj4WY09UDT g8S8Eh9hmjXFHLonMLokOF4J++hPHzS+DMiaIe2I0ApfR+0s72HQfQvD3/lufD4F/cDlUUWbG14V0 5/fpZBRy5hG1TaAqsyZIxRCUwO5Eb43aBSOLcFBCJGhbs3q8YY+gttNAvPaG4D+GFJ/Q1xjBGsNyS SkYw1ShQ==; Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1ljEHf-00F8J8-6G; Wed, 19 May 2021 04:58:16 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 6560561355; Wed, 19 May 2021 04:58:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1621400294; bh=sBPi7doTjepZo5AoeX6D/DqrfoxCCmiTbbDfO6A7+1A=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Tg2fxanYYVeqmsedHZTVahMC53Je13j2qQo6irCgVnD9l6R8hP1VifEKRUxwM2YPf WFdvYQcpyQF7Ff73XO1FgRGZR0+AftflNxfwNilci58q/w6E1SwydNRY6uwOxzMEyF 6t74rsmccXGRBh0DVv57nMWSBPWKBOO0ZMymaVQc= Date: Wed, 19 May 2021 06:58:11 +0200 From: Greg Kroah-Hartman To: Anup Patel Cc: Palmer Dabbelt , Palmer Dabbelt , Paul Walmsley , Albert Ou , Paolo Bonzini , Jonathan Corbet , Alexander Graf , Atish Patra , Alistair Francis , Damien Le Moal , Anup Patel , kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev Subject: Re: [PATCH v18 00/18] KVM RISC-V Support Message-ID: References: <20210519033553.1110536-1-anup.patel@wdc.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210519033553.1110536-1-anup.patel@wdc.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210518_215815_281541_1BCB4EDC X-CRM114-Status: GOOD ( 15.85 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Wed, May 19, 2021 at 09:05:35AM +0530, Anup Patel wrote: > From: Anup Patel > > This series adds initial KVM RISC-V support. Currently, we are able to boot > Linux on RV64/RV32 Guest with multiple VCPUs. > > Key aspects of KVM RISC-V added by this series are: > 1. No RISC-V specific KVM IOCTL > 2. Minimal possible KVM world-switch which touches only GPRs and few CSRs > 3. Both RV64 and RV32 host supported > 4. Full Guest/VM switch is done via vcpu_get/vcpu_put infrastructure > 5. KVM ONE_REG interface for VCPU register access from user-space > 6. PLIC emulation is done in user-space > 7. Timer and IPI emuation is done in-kernel > 8. Both Sv39x4 and Sv48x4 supported for RV64 host > 9. MMU notifiers supported > 10. Generic dirtylog supported > 11. FP lazy save/restore supported > 12. SBI v0.1 emulation for KVM Guest available > 13. Forward unhandled SBI calls to KVM userspace > 14. Hugepage support for Guest/VM > 15. IOEVENTFD support for Vhost > > Here's a brief TODO list which we will work upon after this series: > 1. SBI v0.2 emulation in-kernel > 2. SBI v0.2 hart state management emulation in-kernel > 3. In-kernel PLIC emulation > 4. ..... and more ..... > > This series can be found in riscv_kvm_v18 branch at: > https//github.com/avpatel/linux.git > > Our work-in-progress KVMTOOL RISC-V port can be found in riscv_v7 branch > at: https//github.com/avpatel/kvmtool.git > > The QEMU RISC-V hypervisor emulation is done by Alistair and is available > in master branch at: https://git.qemu.org/git/qemu.git > > To play around with KVM RISC-V, refer KVM RISC-V wiki at: > https://github.com/kvm-riscv/howto/wiki > https://github.com/kvm-riscv/howto/wiki/KVM-RISCV64-on-QEMU > https://github.com/kvm-riscv/howto/wiki/KVM-RISCV64-on-Spike > > Changes since v17: > - Rebased on Linux-5.13-rc2 > - Moved to new KVM MMU notifier APIs > - Removed redundant kvm_arch_vcpu_uninit() > - Moved KVM RISC-V sources to drivers/staging for compliance with > Linux RISC-V patch acceptance policy What is this new "patch acceptance policy" and what does it have to do with drivers/staging? What does drivers/staging/ have to do with this at all? Did anyone ask the staging maintainer about this? Not cool, and not something I'm about to take without some very good reasons... greg k-h _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv