From nobody Sun Nov 24 23:55:24 2024 Received: from mail-pj1-f74.google.com (mail-pj1-f74.google.com [209.85.216.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CC86D1CF28A for ; Fri, 1 Nov 2024 18:15:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.74 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730484956; cv=none; b=utsdGEFkknYRYre/W3VJKQtfvFNPtBRsjx3+eHE8btMACLoxDNnVJ3rQSDto8HFCBkaZtrmuA7R/bvJQXsh8LRPzB+6blQmFQBAqnvxG42jkyPCh/PSERytLNU605GS19XqLkS3c0YykJZMzeZqoSJM0NP/lcNVHQf3dtavNLk4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730484956; c=relaxed/simple; bh=GSHbBwZfkYhqvZmnpUSaXG42ezayg8nwJR7cfig/aho=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=VeZlUjFT0SozizWfYCZtqXpL/1PfF/EsideIE4cFJ6KLpJIjGVhtVsyWWLQjMvKvmQon06MsCb5FURTBPvtAnkC6W6bcS87r7eJjPEy84OqJ9V5rTKEWhKCNa9TFeLblFuJlQhQW6v4QHhppisv1UXuchUtEsdl/yxqpmW1JCOw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--dionnaglaze.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=YpTHgRMA; arc=none smtp.client-ip=209.85.216.74 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--dionnaglaze.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="YpTHgRMA" Received: by mail-pj1-f74.google.com with SMTP id 98e67ed59e1d1-2e2ca4fb175so2519477a91.3 for ; Fri, 01 Nov 2024 11:15:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1730484954; x=1731089754; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=MEZAnkCadaVg1BrSWxgRmpQSE/TbQcmppmH+q7yf6WQ=; b=YpTHgRMAdoZAKkHFfRpC6r90RhqV0TD28pXPHSyTRIlrKLTuXKZA3RT+jLb9A+siZ4 itulhAA4Yjk+kzxe09vqyvG+OEq7iV0EnBEVNxzKrEbxzQZC/938l+ci149VTBvIPzrZ WAdZvDFKD3rZ9oo0vWUfuRMl+Fo2dm9oSesxWg1OPy51yZFdw1Ixsum4ha8XajpBkvdM up5Nzb6a+F9Ald2mzE81CzXdkQD9W64EIhqRu1F/trpWNTL7XHuM32xDPM3YUOXOOUt6 TZ+xEJzh9Ma9CAKccIYa/X2HUnBc3O0461XALm0ivGX5ZgXEcfQBMdbjRbmbU2UojZWx x2kA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730484954; x=1731089754; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=MEZAnkCadaVg1BrSWxgRmpQSE/TbQcmppmH+q7yf6WQ=; b=MAfye74NlRqs1fu5MglvwU+67ZrOtNIMapso3DSr8SW3isqP6fNydOl3m4h0Q/7UZ8 AeGwrgB3X4LfT/iOwaQPRh6FkRKafQ12tEpVpWo6HDwmpWLKbLZe5QZM9MPVKv0LYRKV goMkoUOfpHnoum1AZB12j/0hE0UuqjK1QZ1+uwiR3yHa+1gWOWp8TWwy/0wjQ2vvWLQ1 877XIoKksjxCq90OCakgHjjBNr12idfjSZ7xYfmtHT8Xp8Wur/bPX6gIMvHUHwURUZIp qRx8f5mRj8QFRp3/kb5ae9rYVfl26Itv3sKSClZU3UdybDfezerScMxvKlVcdvEF9EFT bixQ== X-Gm-Message-State: AOJu0Yx1Nab+hSRRxmU04C4m+pPuDumNYrKnTkJlrt2qTRelxFGolUkF pZBqDyqnByU/JTna6iPhA0zFOzigsVCH4SQKnlIoKO7XnTeYQLB09x4jkPaVXUTRTw5xhWyxYZA YKoBGwdWY0a084S9HrPqtz1XdeWQqobppuqDr+x8LS3vQgeC+gFsRmQlj9RULZSPzeAH9M4ww5b 07c51trnVYLGOTpsYilEdjCp3UHHY/0youQu5B6+b3iTudAYRNMixNP8TF+VUAbnxBxNA= X-Google-Smtp-Source: AGHT+IEXa+QnTPnVNgHoaewOLlIH8wFAnb+M/ihAEAGqYML1uHaPbaA1TFQ+R1PS5raQE1UTHGA6cnlOKUra43n49A== X-Received: from dionnaglaze.c.googlers.com ([fda3:e722:ac3:cc00:36:e7b8:ac13:c9e8]) (user=dionnaglaze job=sendgmr) by 2002:a17:90b:616:b0:2e2:af52:a7c3 with SMTP id 98e67ed59e1d1-2e92cf4f915mr20243a91.8.1730484953636; Fri, 01 Nov 2024 11:15:53 -0700 (PDT) Date: Fri, 1 Nov 2024 18:15:29 +0000 In-Reply-To: <20241101181533.1976040-1-dionnaglaze@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20241101181533.1976040-1-dionnaglaze@google.com> X-Mailer: git-send-email 2.47.0.163.g1226f6d8fa-goog Message-ID: <20241101181533.1976040-5-dionnaglaze@google.com> Subject: [PATCH v2 4/4] KVM: SVM: Delay legacy platform initialization on SNP From: Dionna Glaze To: linux-kernel@vger.kernel.org, x86@kernel.org, Sean Christopherson , Paolo Bonzini , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" Cc: Dionna Glaze , Ashish Kalra , Tom Lendacky , John Allen , Herbert Xu , "David S. Miller" , Michael Roth , Luis Chamberlain , Russ Weight , Danilo Krummrich , Greg Kroah-Hartman , "Rafael J. Wysocki" , Tianfei zhang , kvm@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" When no SEV or SEV-ES guests are active, then the firmware can be updated while (SEV-SNP) VM guests are active. CC: Sean Christopherson CC: Paolo Bonzini CC: Thomas Gleixner CC: Ingo Molnar CC: Borislav Petkov CC: Dave Hansen CC: Ashish Kalra CC: Tom Lendacky CC: John Allen CC: Herbert Xu CC: "David S. Miller" CC: Michael Roth CC: Luis Chamberlain CC: Russ Weight CC: Danilo Krummrich CC: Greg Kroah-Hartman CC: "Rafael J. Wysocki" CC: Tianfei zhang Co-developed-by: Ashish Kalra Signed-off-by: Ashish Kalra Reviewed-by: Ashish Kalra Signed-off-by: Dionna Glaze --- arch/x86/kvm/svm/sev.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c index f6e96ec0a5caa..8d365e2e3c1b1 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -445,6 +445,8 @@ static int __sev_guest_init(struct kvm *kvm, struct kvm= _sev_cmd *argp, goto e_no_asid; =20 init_args.probe =3D false; + init_args.supports_download_firmware_ex =3D + vm_type !=3D KVM_X86_SEV_VM && vm_type !=3D KVM_X86_SEV_ES_VM; ret =3D sev_platform_init(&init_args); if (ret) goto e_free; --=20 2.47.0.163.g1226f6d8fa-goog