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 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 F1FE0FCC048 for ; Fri, 6 Mar 2026 17:46:43 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vyZFo-0004b7-HL; Fri, 06 Mar 2026 12:46:24 -0500 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 1vyZFl-0004Zv-B7; Fri, 06 Mar 2026 12:46:23 -0500 Received: from frasgout.his.huawei.com ([185.176.79.56]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vyZFj-0006He-Qf; Fri, 06 Mar 2026 12:46:21 -0500 Received: from mail.maildlp.com (unknown [172.18.224.83]) by frasgout.his.huawei.com (SkyGuard) with ESMTPS id 4fSDMJ2MZbzHnGdN; Sat, 7 Mar 2026 01:45:16 +0800 (CST) Received: from dubpeml500005.china.huawei.com (unknown [7.214.145.207]) by mail.maildlp.com (Postfix) with ESMTPS id 6899040569; Sat, 7 Mar 2026 01:46:16 +0800 (CST) Received: from localhost (10.48.149.21) by dubpeml500005.china.huawei.com (7.214.145.207) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Fri, 6 Mar 2026 17:46:15 +0000 Date: Fri, 6 Mar 2026 17:46:14 +0000 To: Peter Maydell CC: , Subject: Re: [PATCH 16/65] hw/intc/arm_gicv5: Cache LPI IST config in a struct Message-ID: <20260306174614.0000553a@huawei.com> In-Reply-To: <20260223170212.441276-17-peter.maydell@linaro.org> References: <20260223170212.441276-1-peter.maydell@linaro.org> <20260223170212.441276-17-peter.maydell@linaro.org> X-Mailer: Claws Mail 4.3.0 (GTK 3.24.42; x86_64-w64-mingw32) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.48.149.21] X-ClientProxiedBy: lhrpeml500010.china.huawei.com (7.191.174.240) To dubpeml500005.china.huawei.com (7.214.145.207) Received-SPF: pass client-ip=185.176.79.56; envelope-from=jonathan.cameron@huawei.com; helo=frasgout.his.huawei.com X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.411, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.679, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-arm@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Jonathan Cameron From: Jonathan Cameron via Errors-To: qemu-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org Sender: qemu-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org On Mon, 23 Feb 2026 17:01:23 +0000 Peter Maydell wrote: > The IRS has multiple ISTs, for different contexts: > * physical LPIs (separately for each interrupt domain) > * virtual LPIs > * virtual SPIs > > The config information for physical LPIs is in the IRS_IST_BASER and > IRS_IST_CFGR registers; for virtual LPIs and virtual SPIs it will be > in the L2_VMTE VM table entry. We would like to be able to write > generic code that can manipulate any of these ISTs. Define a struct > which captures the config information for an IST, and cache the > IRS_IST_CFGR/IRS_IST_BASER data into this format when the guest sets > the VALID bit. > > This also allows us to enforce the correct handling of reserved and > out-of-range values, and expand the encodings of sizes into a more > convenient format for later use. > > Signed-off-by: Peter Maydell Reviewed-by: Jonathan Cameron 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 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 7573BFCC048 for ; Fri, 6 Mar 2026 17:47:02 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vyZFp-0004bB-7a; Fri, 06 Mar 2026 12:46:25 -0500 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 1vyZFl-0004Zv-B7; Fri, 06 Mar 2026 12:46:23 -0500 Received: from frasgout.his.huawei.com ([185.176.79.56]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vyZFj-0006He-Qf; Fri, 06 Mar 2026 12:46:21 -0500 Received: from mail.maildlp.com (unknown [172.18.224.83]) by frasgout.his.huawei.com (SkyGuard) with ESMTPS id 4fSDMJ2MZbzHnGdN; Sat, 7 Mar 2026 01:45:16 +0800 (CST) Received: from dubpeml500005.china.huawei.com (unknown [7.214.145.207]) by mail.maildlp.com (Postfix) with ESMTPS id 6899040569; Sat, 7 Mar 2026 01:46:16 +0800 (CST) Received: from localhost (10.48.149.21) by dubpeml500005.china.huawei.com (7.214.145.207) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Fri, 6 Mar 2026 17:46:15 +0000 Date: Fri, 6 Mar 2026 17:46:14 +0000 To: Peter Maydell CC: , Subject: Re: [PATCH 16/65] hw/intc/arm_gicv5: Cache LPI IST config in a struct Message-ID: <20260306174614.0000553a@huawei.com> In-Reply-To: <20260223170212.441276-17-peter.maydell@linaro.org> References: <20260223170212.441276-1-peter.maydell@linaro.org> <20260223170212.441276-17-peter.maydell@linaro.org> X-Mailer: Claws Mail 4.3.0 (GTK 3.24.42; x86_64-w64-mingw32) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.48.149.21] X-ClientProxiedBy: lhrpeml500010.china.huawei.com (7.191.174.240) To dubpeml500005.china.huawei.com (7.214.145.207) Received-SPF: pass client-ip=185.176.79.56; envelope-from=jonathan.cameron@huawei.com; helo=frasgout.his.huawei.com X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.411, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.679, 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: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Jonathan Cameron From: Jonathan Cameron via qemu development Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Mon, 23 Feb 2026 17:01:23 +0000 Peter Maydell wrote: > The IRS has multiple ISTs, for different contexts: > * physical LPIs (separately for each interrupt domain) > * virtual LPIs > * virtual SPIs > > The config information for physical LPIs is in the IRS_IST_BASER and > IRS_IST_CFGR registers; for virtual LPIs and virtual SPIs it will be > in the L2_VMTE VM table entry. We would like to be able to write > generic code that can manipulate any of these ISTs. Define a struct > which captures the config information for an IST, and cache the > IRS_IST_CFGR/IRS_IST_BASER data into this format when the guest sets > the VALID bit. > > This also allows us to enforce the correct handling of reserved and > out-of-range values, and expand the encodings of sizes into a more > convenient format for later use. > > Signed-off-by: Peter Maydell Reviewed-by: Jonathan Cameron