From patchwork Wed Sep 13 14:06:09 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marcin Juszkiewicz X-Patchwork-Id: 13383198 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 AC9BAEDEC57 for ; Wed, 13 Sep 2023 14:07:39 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qgQVy-0004F4-8f; Wed, 13 Sep 2023 10:06:47 -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 1qgQVj-0004DE-LM; Wed, 13 Sep 2023 10:06:31 -0400 Received: from muminek.juszkiewicz.com.pl ([213.251.184.221]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qgQVe-00036b-Ge; Wed, 13 Sep 2023 10:06:31 -0400 Received: from localhost (localhost [127.0.0.1]) by muminek.juszkiewicz.com.pl (Postfix) with ESMTP id E8211260B83; Wed, 13 Sep 2023 16:06:16 +0200 (CEST) X-Virus-Scanned: Debian amavis at juszkiewicz.com.pl Received: from muminek.juszkiewicz.com.pl ([127.0.0.1]) by localhost (muminek.juszkiewicz.com.pl [127.0.0.1]) (amavis, port 10024) with ESMTP id Pvd2mRImotoE; Wed, 13 Sep 2023 16:06:14 +0200 (CEST) Received: from applejack.lan (83.21.94.247.ipv4.supernova.orange.pl [83.21.94.247]) by muminek.juszkiewicz.com.pl (Postfix) with ESMTPSA id E63C126000D; Wed, 13 Sep 2023 16:06:13 +0200 (CEST) From: Marcin Juszkiewicz To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, Leif Lindholm , Peter Maydell , Radoslaw Biernacki , Marcin Juszkiewicz Subject: [PATCH 0/1] sbsa-ref: add non-secure EL2 virtual timer Date: Wed, 13 Sep 2023 16:06:09 +0200 Message-ID: <20230913140610.214893-1-marcin.juszkiewicz@linaro.org> X-Mailer: git-send-email 2.41.0 MIME-Version: 1.0 Received-SPF: softfail client-ip=213.251.184.221; envelope-from=marcin.juszkiewicz@linaro.org; helo=muminek.juszkiewicz.com.pl X-Spam_score_int: -11 X-Spam_score: -1.2 X-Spam_bar: - X-Spam_report: (-1.2 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_SOFTFAIL=0.665 autolearn=no 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 Armv8.1+ cpus have Virtual Host Extension (VHE) which added non-secure EL2 virtual timer. This change adds it to fullfil Arm BSA (Base System Architecture) requirements. From firmware side information about timer needs to be present in GTDT acpi table. If it is there with suggested interrupt 28 then BSA ACS test 266 passes: -------------------------------------------------------------- 226 : Check NS EL2-Virt timer PPI Assignment START Received vir el2 interrupt B_PPI_02 : Result: PASS END -------------------------------------------------------------- On Armv8.0 cpus this timer should not exist as there is no VHE. I hope this code is correct. Tried to compare with other emulation targets but only "virt" and "sbsa-ref" use cpu cores newer than v8.0 ones. Marcin Juszkiewicz (1): sbsa-ref: add non-secure EL2 virtual timer hw/arm/sbsa-ref.c | 2 ++ 1 file changed, 2 insertions(+)