From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ian Campbell Subject: Re: [PATCH v8 8/8] xen/arm64: increase MAX_VIRT_CPUS to 128 on arm64 Date: Wed, 17 Jun 2015 14:03:05 +0100 Message-ID: <1434546185.13744.371.camel@citrix.com> References: <1434097969-16793-1-git-send-email-cbz@baozis.org> <1434097969-16793-9-git-send-email-cbz@baozis.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail6.bemta3.messagelabs.com ([195.245.230.39]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1Z5Czn-0004HN-OB for xen-devel@lists.xenproject.org; Wed, 17 Jun 2015 13:03:11 +0000 In-Reply-To: <1434097969-16793-9-git-send-email-cbz@baozis.org> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Chen Baozi Cc: Julien Grall , xen-devel@lists.xenproject.org, Chen Baozi List-Id: xen-devel@lists.xenproject.org On Fri, 2015-06-12 at 16:32 +0800, Chen Baozi wrote: > From: Chen Baozi > > After we have increased the size of GICR in address space for guest > and made use of both AFF0 and AFF1 in (v)MPIDR, we are now able to > support up to 4096 vCPUs in theory. However, it will cost 512M > address space for GICR region, which is unnecessary big at the "unnecessarily" > moment. Considering the max CPU number that GIC-500 can support and > the old value of MAX_VIRT_CPUS before commit aa25a61, we increase > its value to 128. > > Signed-off-by: Chen Baozi Acked-by: Ian Campbell