From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yw1-f202.google.com (mail-yw1-f202.google.com [209.85.128.202]) (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 883B2156F2E for ; Wed, 10 Jul 2024 23:42:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720654961; cv=none; b=O5iSmDWsTcpjklJHPGT1XrmzaHvQoaD/i6+98HxxftZorBl65MnXlL0X+d7HOJ4zlllJWwVGdH5wsebTBKfedmIEN+qJ9k86jDICE083hsrrWp2+ro5jY5AsiZjh36ckNxkv8B5Ut6oPo7+te8NDIR5343zDJIjuWz9rjnDTmWY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720654961; c=relaxed/simple; bh=xxkhVIBeGXY8pX54WQHQVUoU/lEQy1GRiLeaV2vAb5k=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=XeYlo7Tdfr88uYNlqz+1P5dsLhw8xBaNRh40tCMNolkvmakTV5Ye3tDxxT1JZwKenfmP7NpvWtRAQHksCzbKoX6HIysFZpq2HeSI/vpGQUvzaYoM603sf8PWlMbqhKO9o9E504e7jqT5JojoukCy2VIApb6Cagi3SaHHQc5IxEM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--jthoughton.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=aMjMUGfG; arc=none smtp.client-ip=209.85.128.202 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--jthoughton.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="aMjMUGfG" Received: by mail-yw1-f202.google.com with SMTP id 00721157ae682-652c6e92147so5070177b3.3 for ; Wed, 10 Jul 2024 16:42:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1720654958; x=1721259758; darn=lists.linux.dev; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=/kOa+bY4z73FQuKac3t3a5fniJTGUgyq//kzfHQQRXg=; b=aMjMUGfGeeOKdMZ324oEZI/54gyeDbuj+2IpsOrBGUzKhSzuenTOowvwi2eVJkGFNm HbtK1UbDv9RbvK4bsla1ZrDWpwuHo6wGOODB6OmQJQ2t83KHKUNQowkgQ4M6NOPXkrQh xyJyrNvf7PWNaDydloZtXK7ap/o5mWsgg17CFDCPJg980zker5h+pmforJxd32b63Pje S/FUzbe00w2wdGdfnaLTcoyjZEWXs327DglbevPZLRpaxiTopFT2eooUafLxR0ZFBH8U q3H6XNIFX1oJgeNN/1muBf8e1swrVn/qjY4Y/RpwruxsijtoSR1lmVcpv7nXOhRCt/gQ nUjg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1720654958; x=1721259758; 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=/kOa+bY4z73FQuKac3t3a5fniJTGUgyq//kzfHQQRXg=; b=L/IrrwTNoyYpr/K1bKEw5iheuR3YKmYkJBNpElPmmwpk74SA+/+0sKtcFN6SwjtxPH XLd0hE18PvgYXbo/EHzC58vzHejQUHe4bcXxa/1TIfEl0EOKMkn7rQsNEr9J4ZxMgIyK KR+g4BCqc1Ro8aLcRKQV4BvI5wFLFLLp20cvGviqyvGOIwEoJGRZOLSV9oNSd3w+fj2C XMP3twG9JaR3lAyUMd0SCmCFKlhTusJeXwmjDgtL3nuU411p4Nzx9WAkVezV7aCrGFun amU4Dtp5hVa199T9/+f5wOU07RaqTnAZqSmfm9HN1MGe5UoyUYnU/Z1pbLksMDVMe1HF RfKw== X-Forwarded-Encrypted: i=1; AJvYcCUhCdCY2Kpi9C7v41GuVWP+rFexPFQE8rJ3kZOdGW4hzY8Kf+7N1Y0g1uPBo6RbsTmpel06vI1zMJjyWdTuZ2wpP1I2e8e1 X-Gm-Message-State: AOJu0Ywz0qLwrcX5dDRKKZrdoTQvfiSvgh7ctPCNENbKd6/p8mXwKJ64 hyUElG/39OJZsruQsfavGu8VBlbe9euj7wPLD0Fc06iX6+Q7ZFxxOKy4C8V32v2EklHmQqSpNHo JAH5e9jPORL358Nj+qQ== X-Google-Smtp-Source: AGHT+IEQILe/Q46nVYjT6VvqMQTMH6KcT24WPu+37xvorf2J37tSktUkMizR+hLJi1VSG+Olb8BNJuoCHzqVyuyh X-Received: from jthoughton.c.googlers.com ([fda3:e722:ac3:cc00:14:4d90:c0a8:2a4f]) (user=jthoughton job=sendgmr) by 2002:a05:6902:161a:b0:e02:6dcf:e9ab with SMTP id 3f1490d57ef6-e041b0688b2mr15353276.6.1720654958570; Wed, 10 Jul 2024 16:42:38 -0700 (PDT) Date: Wed, 10 Jul 2024 23:42:05 +0000 In-Reply-To: <20240710234222.2333120-1-jthoughton@google.com> Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240710234222.2333120-1-jthoughton@google.com> X-Mailer: git-send-email 2.45.2.993.g49e7a77208-goog Message-ID: <20240710234222.2333120-2-jthoughton@google.com> Subject: [RFC PATCH 01/18] KVM: Add KVM_USERFAULT build option From: James Houghton To: Paolo Bonzini Cc: Marc Zyngier , Oliver Upton , James Morse , Suzuki K Poulose , Zenghui Yu , Sean Christopherson , Shuah Khan , Peter Xu , Axel Rasmussen , David Matlack , James Houghton , kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev Content-Type: text/plain; charset="UTF-8" Some architectures will not support KVM_USERFAULT, so we need to have a build option to avoid including it for those architectures. Signed-off-by: James Houghton --- virt/kvm/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/virt/kvm/Kconfig b/virt/kvm/Kconfig index 754c6c923427..f1b660d593e4 100644 --- a/virt/kvm/Kconfig +++ b/virt/kvm/Kconfig @@ -117,3 +117,7 @@ config HAVE_KVM_GMEM_PREPARE config HAVE_KVM_GMEM_INVALIDATE bool depends on KVM_PRIVATE_MEM + +config KVM_USERFAULT + select KVM_GENERIC_MEMORY_ATTRIBUTES + bool -- 2.45.2.993.g49e7a77208-goog