From patchwork Wed Aug 31 17:59:18 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jisheng Zhang X-Patchwork-Id: 12961221 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 BE40AECAAD1 for ; Wed, 31 Aug 2022 18:09:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=zLA8E7Q/vVuvXayHapXg3ztCFPrsHQ2pIpoB1tujQXs=; b=hMXOi30YTEcYEN 5zzRj/uDImY4g4Getn67yybXCDR8rNWClzPRVmzWiO9p71xLJQzYbiY3YpLzyRF4NyaqKKYyCjaEA bY+ZqvF4VyaFCNqTqlWC6aNfp9/uVm5WcyenWZBoqZjzokW7awIvyaQPsk0OthAJel89pvA64ejqG LHg0V9QTCRjY9aBe1Aez2APIWYJ4C+KZkQykJAVfGyHArDwEgX7KFJPwnDHeITePaOHjikEMUaA/L ou20QY/IW0MubW87qeJpFZuM9okGGpSMsqQCxOe2RBCJ/HNnWRi6tg3JXmOdAZIC9UJcUJ9M1J6oL L2NMltZKr8mvXkWP427w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oTS90-007VY0-P5; Wed, 31 Aug 2022 18:08:54 +0000 Received: from sin.source.kernel.org ([2604:1380:40e1:4800::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oTS8w-007VQ8-LL; Wed, 31 Aug 2022 18:08:52 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id 70B1BCE1EA8; Wed, 31 Aug 2022 18:08:45 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 65BF0C433D7; Wed, 31 Aug 2022 18:08:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1661969323; bh=RRltkuwJX7LP5kK/3k3rhHeIM5Hot3r7Dzu5sm7vQRo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kjEWyJtWNJyqF1sWOIQ+uxemOhBF9KufKpx8qD5bN+fkZAdqi4a7jrAo/HlErp4DX 4JrXURA91d8hkInkWBE1es3vrtKJEag1lSCmaRnzz/itVcR4MM49ZWA6Sbm0vfsvkl LOHM5808le50a4zKPFn3IrO63brm4V6tnNWJi2O6bhA0pc5h0MhAMnuebmuyonXou+ EVydrw1bfEdiLIKpA4cWmrqlj1kMnVUEf1psTVIEu7NzLvcHfSjXgazSbSDtAH45c1 A0YVzkG7josdrwFMYuKygXDRDEu9f0kfHCgrnCQ2M2/cymSWDY1wcmJYpoREFT34mN xw6vWRBUCvd3A== From: Jisheng Zhang To: Paul Walmsley , Palmer Dabbelt , Albert Ou , Anup Patel , Atish Patra , Sebastian Andrzej Siewior , Thomas Gleixner , Steven Rostedt Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org Subject: [PATCH v2 3/5] riscv: select HAVE_POSIX_CPU_TIMERS_TASK_WORK Date: Thu, 1 Sep 2022 01:59:18 +0800 Message-Id: <20220831175920.2806-4-jszhang@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220831175920.2806-1-jszhang@kernel.org> References: <20220831175920.2806-1-jszhang@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220831_110850_887221_1445281B X-CRM114-Status: UNSURE ( 9.40 ) X-CRM114-Notice: Please train this message. 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: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Move POSIX CPU timer expiry and signal delivery into task context to allow PREEMPT_RT setups to coexist with KVM. Signed-off-by: Jisheng Zhang --- arch/riscv/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 79e52441e18b..7a8134fd7ec9 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -104,6 +104,7 @@ config RISCV select HAVE_PERF_EVENTS select HAVE_PERF_REGS select HAVE_PERF_USER_STACK_DUMP + select HAVE_POSIX_CPU_TIMERS_TASK_WORK select HAVE_REGS_AND_STACK_ACCESS_API select HAVE_FUNCTION_ARG_ACCESS_API select HAVE_STACKPROTECTOR