From patchwork Thu Feb 20 13:48:58 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Zyngier X-Patchwork-Id: 13983991 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BEA3E1FA851; Thu, 20 Feb 2025 13:49:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740059354; cv=none; b=lelXiqajAJ2J89dc7qNmhA9PMguAUe9VKrfZej41AAeaHgSXNaboIi+Ci499N6xHlmcbN71bkIn5jO9uexoRtlVuSJygdkLmYuIl4IWecXUxiR0Zwlo6UkE5EV3noHVDD8H5nCgycsdxFzLfZr56u6uWJBu4tgQY5SFuedZOWkA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740059354; c=relaxed/simple; bh=4L9e3x4dCeFSSHA1otQ4XS7vmrkCkOdcXz3bm7vANK0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Z8YuDsaTolQMVYFWAe8z0NQk6AEEQ7yv7reCJQQu943xXR3jroAGeb4/VFzrQnXT+6LLpkb8928rqHfpuxKYbFtdSBb5AUdSjc5bDFlSKaZEtWRi9ScWic0qawMUP65c4MCW5A08QQadnZkeAG29xKO813lpvA4sptWyIX/j6BY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=RDRDzYNd; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="RDRDzYNd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9FAEDC4CED1; Thu, 20 Feb 2025 13:49:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1740059354; bh=4L9e3x4dCeFSSHA1otQ4XS7vmrkCkOdcXz3bm7vANK0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RDRDzYNdjy42OOJyWBgWmxqB0to6d0ML42uNMqLtYV4qCjTG+2pLRA0zFV8MYBhev dg5n4UySvizp3QlEBCmE7O7czFFlfU3bhAtHsJR0q7NVwynDav+Xn8XBcsdC2yQijv Gfs6QuNU66gMRmzQ8iIjYKBL8+BwGHr88e7y0+/UgvIsjm9TD9d3XVowMq2aNg6b69 g+N+o2pz5OWgNQrKQJJ/EN2iVshPlr6SKNkaEgrvwuZIK4k+4AnxCTsSXbXAv5/2aR 3J3D46nx8VnEUF47CiW0X1W2ePO/LiHRq/D8eWAtVlEahkIj2NCxawhm5Ufwna6Ckl nrUCnRieP4vYA== Received: from sofa.misterjones.org ([185.219.108.64] helo=valley-girl.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1tl6vQ-006DXp-KR; Thu, 20 Feb 2025 13:49:12 +0000 From: Marc Zyngier To: kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Joey Gouly , Suzuki K Poulose , Oliver Upton , Zenghui Yu , Eric Auger , gankulkarni@os.amperecomputing.com Subject: [PATCH v2 05/14] KVM: arm64: Advertise NV2 in the boot messages Date: Thu, 20 Feb 2025 13:48:58 +0000 Message-Id: <20250220134907.554085-6-maz@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20250220134907.554085-1-maz@kernel.org> References: <20250220134907.554085-1-maz@kernel.org> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, joey.gouly@arm.com, suzuki.poulose@arm.com, oliver.upton@linux.dev, yuzenghui@huawei.com, eric.auger@redhat.com, gankulkarni@os.amperecomputing.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Make it a bit easier to understand what people are running by adding a +NV2 string to the successful KVM initialisation. Signed-off-by: Marc Zyngier --- arch/arm64/kvm/arm.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index b8e55a441282f..5ea09f13c7bc0 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -2806,11 +2806,12 @@ static __init int kvm_arm_init(void) if (err) goto out_hyp; - kvm_info("%s%sVHE mode initialized successfully\n", + kvm_info("%s%sVHE%s mode initialized successfully\n", in_hyp_mode ? "" : (is_protected_kvm_enabled() ? "Protected " : "Hyp "), in_hyp_mode ? "" : (cpus_have_final_cap(ARM64_KVM_HVHE) ? - "h" : "n")); + "h" : "n"), + cpus_have_final_cap(ARM64_HAS_NESTED_VIRT) ? "+NV2": ""); /* * FIXME: Do something reasonable if kvm_init() fails after pKVM