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=-5.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_MUTT autolearn=ham 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 CF639C31E47 for ; Sat, 15 Jun 2019 07:49:41 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (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 51FF2206B7 for ; Sat, 15 Jun 2019 07:49:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=ozlabs.org header.i=@ozlabs.org header.b="KTBzlzh+" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 51FF2206B7 Authentication-Results: mail.kernel.org; dmarc=pass (p=none dis=none) header.from=ozlabs.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 45QqPZ6rGtzDrR4 for ; Sat, 15 Jun 2019 17:49:38 +1000 (AEST) Received: from ozlabs.org (bilbo.ozlabs.org [IPv6:2401:3900:2:1::2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 45QqMR239FzDrQN for ; Sat, 15 Jun 2019 17:47:47 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=ozlabs.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=ozlabs.org header.i=@ozlabs.org header.b="KTBzlzh+"; dkim-atps=neutral Received: by ozlabs.org (Postfix) id 45QqMR1CyRz9sNk; Sat, 15 Jun 2019 17:47:47 +1000 (AEST) Received: by ozlabs.org (Postfix, from userid 1003) id 45QqMR0FTCz9sNl; Sat, 15 Jun 2019 17:47:46 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ozlabs.org; s=201707; t=1560584867; bh=RbVxzic/utIowZwLvmsu0ZqoiFt+kS5VBsZdtW+Utcc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=KTBzlzh+vKbi32BAVrbFzAP8ZM8khVQoraLTz72U4uRj7oMEImg8+W93wiW5V0gXI ZEpWauGXSgcX/5cnNlH4vSEOomomYA2sLQhsa2PD71CN23j5ZT5CyvZ2NWkVAEvINJ GZB0CxHVHVzvrysEdmAYNDUhH1WWhftXdOkiaz0kCLNPxvXDN/jbqnV1yIZQ/UtfNq fbgpRI59KkSFj23SIcT4DLepKdeKbQ88QpOdJSTU0hcN/l52oSHagT79kvq/enb0lN P+7AT1nympiM2xIPoOUCraD1XuEAC+344cmM6gEE93W0npUa6xmhd55bv/55uurDtF c6NcXiGObMKHw== Date: Sat, 15 Jun 2019 17:43:34 +1000 From: Paul Mackerras To: Claudio Carvalho Subject: Re: [PATCH v3 7/9] KVM: PPC: Ultravisor: Restrict LDBAR access Message-ID: <20190615074334.GD24709@blackberry> References: <20190606173614.32090-1-cclaudio@linux.ibm.com> <20190606173614.32090-8-cclaudio@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190606173614.32090-8-cclaudio@linux.ibm.com> User-Agent: Mutt/1.5.24 (2015-08-30) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Madhavan Srinivasan , Michael Anderson , Ram Pai , kvm-ppc@vger.kernel.org, Bharata B Rao , linuxppc-dev@ozlabs.org, Sukadev Bhattiprolu , Thiago Bauermann , Anshuman Khandual Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Thu, Jun 06, 2019 at 02:36:12PM -0300, Claudio Carvalho wrote: > When the ultravisor firmware is available, it takes control over the > LDBAR register. In this case, thread-imc updates and save/restore > operations on the LDBAR register are handled by ultravisor. > > Signed-off-by: Claudio Carvalho > Signed-off-by: Ram Pai Acked-by: Paul Mackerras Just a note on the signed-off-by: it's a bit weird to have Ram's signoff when he is neither the author nor the sender of the patch. The author is assumed to be Claudio; if that is not correct then the patch should have a From: line at the start telling us who the author is, and ideally that person should have a signoff line before Claudio's signoff as the sender of the patch. Paul.