From patchwork Tue Sep 24 12:44:04 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Henrique Barboza X-Patchwork-Id: 13810908 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 CAFFBCF9C6B for ; Tue, 24 Sep 2024 12:46:09 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1st4ty-0003Jh-MN; Tue, 24 Sep 2024 08:44:22 -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 1st4tx-0003EM-20 for qemu-devel@nongnu.org; Tue, 24 Sep 2024 08:44:21 -0400 Received: from mail-vk1-xa2d.google.com ([2607:f8b0:4864:20::a2d]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1st4tv-0005sh-By for qemu-devel@nongnu.org; Tue, 24 Sep 2024 08:44:20 -0400 Received: by mail-vk1-xa2d.google.com with SMTP id 71dfb90a1353d-502c8f50c5dso1498379e0c.0 for ; Tue, 24 Sep 2024 05:44:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1727181858; x=1727786658; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=3ZnjQxTMhjoEY0Z6cRJChvJCZU9mx95m8bwJRe3bcaw=; b=d613en6drmUlETcKBZH2Bn/wlcIUO7wgRefGJWcRCiEJ50wiCUwyEzrya64leQqz7c uNaAjKaRo8ajLf6aPNJKGJNollXqDEOm8XKWdcbrwZ+44xa3w5l4CNjinO2OVuyjqEmy KmcDcObHOsDLwe0pcrggE8GKa0YkohXKHycFS/VSbem+sphxOjyfzkhQeOk5eqFfYoR+ aQB1iP6ZsePTCJPgt7tGq33j8pKFN+Om9DgFh+wVrlgC5eMervmLScdQUQDk7yOMmUCp 4xQSt3rzYqw5IRXOLAukaMXIyoGARlfSj9yqIP9SNckRIMieNRBLWnXIxXSi+KIGtA04 4V2Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727181858; x=1727786658; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=3ZnjQxTMhjoEY0Z6cRJChvJCZU9mx95m8bwJRe3bcaw=; b=jUvmCoGC10XxEtBAZLi4+5qzxkz214HwEPDXn+Jsb8rkvBDwTS8BrDCeFgELA0LNgo b+KVYH4bZwJrLIDMBcChg49To8aoVrIyY9PTdAbg3DbotA/oxaO3k53IbVyghuPxaQvF tzsFLqDnW8fdYceGtsWMnpBK6AqlpdCFAPrmNKGewu+Qo2ukOIcudmAZTY0SLwYrok6q CA5I9LpqEPmYuttebCQ7+DQvKlh1fTFNQZ7r3RRF5vnNSaebEHq1rZfgwkq4ohD6SzWD 7y0QYoUf/VbCYDgf+R11sRuG4xzFKKlsfGMsqT0LI+No5YSyu5ldQo8c4aBkalkw6uJ/ 6h+Q== X-Gm-Message-State: AOJu0Yxj1wtgBl4XrKitzxAiCMgIr3GSZeY5iCvEUwsRaTqpilfjnjCE VtyBLuyi4t9Vzvh/8Y9oYV9+4dJYw5rOEsalvueYCvGVs2Cj8jGJMDC5AXq0NVvDP16XRa98I0F 7 X-Google-Smtp-Source: AGHT+IHG5jeRz54hOcUW+zhSXcsCGwMuwqIxtZolEqAZoN93XKg17gUk2dqeUrsvlSpMBihoP0DSUA== X-Received: by 2002:a05:6122:2020:b0:4ed:12b:ec99 with SMTP id 71dfb90a1353d-503e4076f7cmr8912241e0c.3.1727181857901; Tue, 24 Sep 2024 05:44:17 -0700 (PDT) Received: from grind.dc1.ventanamicro.com ([187.101.184.93]) by smtp.gmail.com with ESMTPSA id 71dfb90a1353d-505aa10a8fbsm767830e0c.49.2024.09.24.05.44.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Sep 2024 05:44:16 -0700 (PDT) From: Daniel Henrique Barboza To: qemu-devel@nongnu.org Cc: qemu-riscv@nongnu.org, alistair.francis@wdc.com, bmeng@tinylab.org, liwei1518@gmail.com, zhiwei_liu@linux.alibaba.com, palmer@rivosinc.com, ajones@ventanamicro.com, Daniel Henrique Barboza Subject: [PATCH 1/4] target/riscv/kvm: set 'aia_mode' to default in error path Date: Tue, 24 Sep 2024 09:44:04 -0300 Message-ID: <20240924124407.766495-2-dbarboza@ventanamicro.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240924124407.766495-1-dbarboza@ventanamicro.com> References: <20240924124407.766495-1-dbarboza@ventanamicro.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::a2d; envelope-from=dbarboza@ventanamicro.com; helo=mail-vk1-xa2d.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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 When failing to set the selected AIA mode, 'aia_mode' is left untouched. This means that 'aia_mode' will not reflect the actual AIA mode, retrieved in 'default_aia_mode', This is benign for now, but it will impact QMP query commands that will expose the 'aia_mode' value, retrieving the wrong value. Set 'aia_mode' to 'default_aia_mode' if we fail to change the AIA mode in KVM. While we're at it, rework the log/warning messages to be a bit less verbose. Instead of: KVM AIA: default mode is emul qemu-system-riscv64: warning: KVM AIA: failed to set KVM AIA mode We can use a single warning message: qemu-system-riscv64: warning: KVM AIA: failed to set KVM AIA mode 'auto', using default host mode 'emul' Signed-off-by: Daniel Henrique Barboza --- target/riscv/kvm/kvm-cpu.c | 22 +++++++++++++++------- 1 file changed, 15 insertions(+), 7 deletions(-) diff --git a/target/riscv/kvm/kvm-cpu.c b/target/riscv/kvm/kvm-cpu.c index 341af901c5..970a7ab2f1 100644 --- a/target/riscv/kvm/kvm-cpu.c +++ b/target/riscv/kvm/kvm-cpu.c @@ -1711,18 +1711,26 @@ void kvm_riscv_aia_create(MachineState *machine, uint64_t group_shift, error_report("KVM AIA: failed to get current KVM AIA mode"); exit(1); } - qemu_log("KVM AIA: default mode is %s\n", - kvm_aia_mode_str(default_aia_mode)); - if (default_aia_mode != aia_mode) { + if (default_aia_mode == aia_mode) { + qemu_log("KVM AIA: using default host mode '%s'\n", + kvm_aia_mode_str(default_aia_mode)); + } else { ret = kvm_device_access(aia_fd, KVM_DEV_RISCV_AIA_GRP_CONFIG, KVM_DEV_RISCV_AIA_CONFIG_MODE, &aia_mode, true, NULL); - if (ret < 0) - warn_report("KVM AIA: failed to set KVM AIA mode"); - else - qemu_log("KVM AIA: set current mode to %s\n", + if (ret < 0) { + warn_report("KVM AIA: failed to set KVM AIA mode '%s', using " + "default host mode '%s'", + kvm_aia_mode_str(aia_mode), + kvm_aia_mode_str(default_aia_mode)); + + /* failed to change AIA mode, use default */ + aia_mode = default_aia_mode; + } else { + qemu_log("KVM AIA: setting current mode to %s\n", kvm_aia_mode_str(aia_mode)); + } } ret = kvm_device_access(aia_fd, KVM_DEV_RISCV_AIA_GRP_CONFIG,