From patchwork Thu Aug 10 10:00:59 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "lan,Tianyu" X-Patchwork-Id: 9893153 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 6FAF460236 for ; Thu, 10 Aug 2017 10:04:04 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 60B911FF15 for ; Thu, 10 Aug 2017 10:04:04 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 55A2528543; Thu, 10 Aug 2017 10:04:04 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0DCE91FF15 for ; Thu, 10 Aug 2017 10:04:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751972AbdHJKDu (ORCPT ); Thu, 10 Aug 2017 06:03:50 -0400 Received: from mga05.intel.com ([192.55.52.43]:55468 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751418AbdHJKDt (ORCPT ); Thu, 10 Aug 2017 06:03:49 -0400 Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga105.fm.intel.com with ESMTP; 10 Aug 2017 03:03:49 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.41,352,1498546800"; d="scan'208";a="122007296" Received: from lantianyu-ws.sh.intel.com (HELO localhost) ([10.239.159.159]) by orsmga002.jf.intel.com with ESMTP; 10 Aug 2017 03:03:47 -0700 From: Lan Tianyu Cc: Lan Tianyu , pbonzini@redhat.com, rkrcmar@redhat.com, tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, x86@kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] KVM/x86: Increase max vcpu number to 352 Date: Thu, 10 Aug 2017 18:00:59 +0800 Message-Id: <1502359259-24966-1-git-send-email-tianyu.lan@intel.com> X-Mailer: git-send-email 1.7.9.5 To: unlisted-recipients:; (no To-header on input) Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Intel Xeon phi chip will support 352 logical threads. For HPC usage case, it will create a huge VM with vcpu number as same as host cpus. This patch is to increase max vcpu number to 352. Signed-off-by: Lan Tianyu --- arch/x86/include/asm/kvm_host.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 87ac4fb..2cdc043 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -35,7 +35,7 @@ #include #include -#define KVM_MAX_VCPUS 288 +#define KVM_MAX_VCPUS 352 #define KVM_SOFT_MAX_VCPUS 240 #define KVM_MAX_VCPU_ID 1023 #define KVM_USER_MEM_SLOTS 509