From mboxrd@z Thu Jan 1 00:00:00 1970 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.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 DDEF6C433EF for ; Tue, 23 Nov 2021 16:41:08 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4Hz8z72y9kz3dkC for ; Wed, 24 Nov 2021 03:41:07 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=FtA9WJ/Q; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=198.145.29.99; helo=mail.kernel.org; envelope-from=sashal@kernel.org; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=FtA9WJ/Q; dkim-atps=neutral Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4Hz8vG4qRHz3cQN for ; Wed, 24 Nov 2021 03:37:46 +1100 (AEDT) Received: by mail.kernel.org (Postfix) with ESMTPSA id 886F960FD9; Tue, 23 Nov 2021 16:37:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1637685465; bh=x12KwXeaswcwwB/jKfFK1MB0NKmwL9y5uBux9iiPvlc=; h=From:To:Cc:Subject:Date:From; b=FtA9WJ/QsqrLB5rqp+I3pC2o6Ii1HD0w7j+dLmLX9b5ZG/MdEb0chUfgBoXj5CrWh Z6Z9qYTiVqvO7nPyksNt6PJ0uh+gKLj8BsmlTnJUDvXt6WkpKLSnBB41a9PxldY1wq 8Vx24HnirMkR05cRiiMaKSZTwI6Eg7rfnHxzTfMDRN3O+KPMFE+vcqjOzM7Kdq/vsq oWQQwi0lQ6CcQ1yPKPvXwoxM0lID6o/UbDds9B6yYopZl1Qw9A0P3ksOwjLfAoyhMP FiE9bHi3Y0dr1OlcVgEJUMP6fDpqOJLD9k74Xyy5c4Skn2nUwbz/OmSiY9xE9ZpabC OZS3I+nfczzOw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH MANUALSEL 4.4] KVM: PPC: Cap KVM_CAP_NR_VCPUS by KVM_CAP_MAX_VCPUS Date: Tue, 23 Nov 2021 11:37:40 -0500 Message-Id: <20211123163742.290040-1-sashal@kernel.org> X-Mailer: git-send-email 2.33.0 MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sasha Levin , jgross@suse.com, farosas@linux.ibm.com, ndesaulniers@google.com, bharata@linux.ibm.com, clg@kaod.org, npiggin@gmail.com, Paolo Bonzini , Vitaly Kuznetsov , linuxppc-dev@lists.ozlabs.org, ravi.bangoria@linux.ibm.com, david@gibson.dropbear.id.au Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Vitaly Kuznetsov [ Upstream commit b7915d55b1ac0e68a7586697fa2d06c018135c49 ] It doesn't make sense to return the recommended maximum number of vCPUs which exceeds the maximum possible number of vCPUs. Signed-off-by: Vitaly Kuznetsov Message-Id: <20211116163443.88707-4-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini Signed-off-by: Sasha Levin --- arch/powerpc/kvm/powerpc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index a3b182dcb8236..823ca801b0507 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -555,9 +555,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) * implementations just count online CPUs. */ if (hv_enabled) - r = num_present_cpus(); + r = min_t(unsigned int, num_present_cpus(), KVM_MAX_VCPUS); else - r = num_online_cpus(); + r = min_t(unsigned int, num_online_cpus(), KVM_MAX_VCPUS); break; case KVM_CAP_NR_MEMSLOTS: r = KVM_USER_MEM_SLOTS; -- 2.33.0