From patchwork Mon Oct 28 18:20:37 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: 13853831 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 82CE2D339AE for ; Mon, 28 Oct 2024 18:21:37 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1t5UMU-0000bk-I9; Mon, 28 Oct 2024 14:21:07 -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 1t5UMH-0000WP-O1 for qemu-devel@nongnu.org; Mon, 28 Oct 2024 14:20:56 -0400 Received: from mail-pl1-x636.google.com ([2607:f8b0:4864:20::636]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1t5UMF-0003cQ-1e for qemu-devel@nongnu.org; Mon, 28 Oct 2024 14:20:53 -0400 Received: by mail-pl1-x636.google.com with SMTP id d9443c01a7336-20c803787abso36679255ad.0 for ; Mon, 28 Oct 2024 11:20:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1730139649; x=1730744449; 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=i6z6DcRjVJWOSMzlRK4IW4vk/uBL6nDh9i3CjYrjeC0=; b=DVeFrG3Tcx/cUZ2K2EFwql9COxjcBQvpbRoFtGX5UhZMFdqHCg19ROX+YYJwMMgsya z93mflaHJOq23N/yow25ZsH5/zgNP2gOqltNnvxYFmUy2BF8j49ctsl8+aqe1t2fHdgw RPNt3kyFOVYxtdqHmIGcxxmZogPUOIr9ObqyGQz8llEH43PK3BipvCSl4HfsziPYUSi8 pBGkNkc3+HftVtbP6KBXDJCVm5AIT2EGIlfpYMljCpipGxZgO6lqDyXe1qfYiiMB0oQJ IC4A+DUmGg24nDMZrXx7srKn0QNREVpnksmt+iGnTZjwVfY230Z17s1yMPfMVHyqxGry YtMw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730139649; x=1730744449; 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=i6z6DcRjVJWOSMzlRK4IW4vk/uBL6nDh9i3CjYrjeC0=; b=sD6LS9WbGAFTN8mEto6Ax/cCYbJ1JjfvwdJLKlBFNJQ5uiGNzW1/jLT18iJrfN6ACj 3tBDumNlCuKA4xiucA1PuHBALa2mAU2mzqNT8GaF92ifT/RTS3r7mfYcEUoNtp67DOkY MVdCDoeNqfd7uGTkRWA3fnqmT3p2x97QvA6Y2qYlG3Y5HDJn3pg3T6hynjUD1XEmY1p6 YzZ0zluGQiBvx3ob+WU1AlTJE8MdrGZO/B5k3WI7l61P2u+ngdMQIvmVbjYsQLPjFX// kOqstzU2YS+6dM8sbEH7fifTlHJQMLDE9yjjv3AySDyiQ8d5HRnu0Hfm8jzdJ+z9XyCp 3XVg== X-Gm-Message-State: AOJu0YxAj+nHrLZ9iXkEXlJdjPF1QMa5mzA3k7n5P/oAZRoqBiW3KwlZ qYGFvpcjqMF4+Ny4EjqLzu8wGT2aPppd1dD2lmt34sQB3ffeiRD8KjQrMps6DQKl2OtfYv44KUA W X-Google-Smtp-Source: AGHT+IGsGMCZum3jRv5h4vlecPmDxM+iPbO5ZodIqejCaKpmel0YdmnDMMi3HgLEViNtEqjtMOtxNQ== X-Received: by 2002:a17:902:db07:b0:20b:6c1e:1e13 with SMTP id d9443c01a7336-210e902a3f2mr7089495ad.23.1730139649453; Mon, 28 Oct 2024 11:20:49 -0700 (PDT) Received: from grind.dc1.ventanamicro.com ([191.8.109.222]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-210bbf471fesm53637505ad.51.2024.10.28.11.20.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Oct 2024 11:20:49 -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, Daniel Henrique Barboza Subject: [PATCH v2 2/2] target/riscv/kvm: clarify how 'riscv-aia' default works Date: Mon, 28 Oct 2024 15:20:37 -0300 Message-ID: <20241028182037.290171-3-dbarboza@ventanamicro.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20241028182037.290171-1-dbarboza@ventanamicro.com> References: <20241028182037.290171-1-dbarboza@ventanamicro.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::636; envelope-from=dbarboza@ventanamicro.com; helo=mail-pl1-x636.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 We do not have control in the default 'riscv-aia' default value. We can try to set it to a specific value, in this case 'auto', but there's no guarantee that the host will accept it. Couple with this we're always doing a 'qemu_log' to inform whether we're ended up using the host default or if we managed to set the AIA mode to the QEMU default we wanted to set. Change the 'riscv-aia' description to better reflect how the option works, and remove the two informative 'qemu_log' that are now unneeded: if no message shows, riscv-aia was set to the default or uset-set value. Signed-off-by: Daniel Henrique Barboza Acked-by: Alistair Francis --- target/riscv/kvm/kvm-cpu.c | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-) diff --git a/target/riscv/kvm/kvm-cpu.c b/target/riscv/kvm/kvm-cpu.c index acc713c56a..cbda4596da 100644 --- a/target/riscv/kvm/kvm-cpu.c +++ b/target/riscv/kvm/kvm-cpu.c @@ -1676,9 +1676,9 @@ void kvm_arch_accel_class_init(ObjectClass *oc) object_class_property_add_str(oc, "riscv-aia", riscv_get_kvm_aia, riscv_set_kvm_aia); object_class_property_set_description(oc, "riscv-aia", - "Set KVM AIA mode. Valid values are " - "emul, hwaccel, and auto. Default " - "is auto."); + "Set KVM AIA mode. Valid values are 'emul', 'hwaccel' and 'auto'. " + "Changing KVM AIA modes relies on host support. Defaults to 'auto' " + "if the host supports it"); object_property_set_default_str(object_class_property_find(oc, "riscv-aia"), "auto"); } @@ -1712,10 +1712,7 @@ void kvm_riscv_aia_create(MachineState *machine, uint64_t group_shift, exit(1); } - if (default_aia_mode == aia_mode) { - qemu_log("KVM AIA: using default host mode '%s'\n", - kvm_aia_mode_str(default_aia_mode)); - } else { + if (default_aia_mode != aia_mode) { ret = kvm_device_access(aia_fd, KVM_DEV_RISCV_AIA_GRP_CONFIG, KVM_DEV_RISCV_AIA_CONFIG_MODE, &aia_mode, true, NULL); @@ -1727,9 +1724,6 @@ void kvm_riscv_aia_create(MachineState *machine, uint64_t group_shift, /* 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)); } }