From patchwork Sat Nov 9 12:08:36 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Tokarev X-Patchwork-Id: 13869525 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 1FBD3D5E369 for ; Sat, 9 Nov 2024 12:33:19 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1t9kRD-0002C1-Fv; Sat, 09 Nov 2024 07:19:36 -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 1t9kQH-0007u1-Sh; Sat, 09 Nov 2024 07:18:38 -0500 Received: from isrv.corpit.ru ([86.62.121.231]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1t9kQG-0005Ls-2N; Sat, 09 Nov 2024 07:18:37 -0500 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id E2F2CA164D; Sat, 9 Nov 2024 15:08:08 +0300 (MSK) Received: from tls.msk.ru (mjt.wg.tls.msk.ru [192.168.177.130]) by tsrv.corpit.ru (Postfix) with SMTP id AA7D9167FD3; Sat, 9 Nov 2024 15:09:03 +0300 (MSK) Received: (nullmailer pid 3296235 invoked by uid 1000); Sat, 09 Nov 2024 12:09:01 -0000 From: Michael Tokarev To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, Daniel Henrique Barboza , Alistair Francis , Michael Tokarev Subject: [Stable-9.1.2 35/58] target/riscv/kvm: clarify how 'riscv-aia' default works Date: Sat, 9 Nov 2024 15:08:36 +0300 Message-Id: <20241109120901.3295995-35-mjt@tls.msk.ru> X-Mailer: git-send-email 2.39.5 In-Reply-To: References: MIME-Version: 1.0 Received-SPF: pass client-ip=86.62.121.231; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru X-Spam_score_int: -68 X-Spam_score: -6.9 X-Spam_bar: ------ X-Spam_report: (-6.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, 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: 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 From: Daniel Henrique Barboza 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 Message-ID: <20241028182037.290171-3-dbarboza@ventanamicro.com> Signed-off-by: Alistair Francis (cherry picked from commit fd16cfb2995e9196b579d8885145c4247dfa6058) Signed-off-by: Michael Tokarev diff --git a/target/riscv/kvm/kvm-cpu.c b/target/riscv/kvm/kvm-cpu.c index b264760752..210bee936a 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"); } @@ -1711,10 +1711,7 @@ 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); @@ -1726,9 +1723,6 @@ 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)); } }