[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] only one CPU is detected when dom0 boots up
Harper, Thanks a lot. It works! But the question remains that why change set 10033 could bring up multiple CPUs without hotplug. I notice that there is no change in build configuration since 9980. Ping >-----Original Message----- >From: Ryan Harper [mailto:ryanh@xxxxxxxxxx] >Sent: 2006年5月25日 10:44 >To: Yu, Ping Y >Cc: Zheng, Jeff; xen-devel@xxxxxxxxxxxxxxxxxxx >Subject: Re: [Xen-devel] only one CPU is detected when dom0 boots up > >* Yu, Ping Y <ping.y.yu@xxxxxxxxx> [2006-05-25 11:59]: >> Harper, >> >> You are right! The default build configuration linux-defconfig_xen0_x86_64/ >> linux-defconfig_xen0_x86_32 is UP, and we have manually changed the default >> configure to make it SMP. We noticed that "uname -a" shows the dom0's kernel >is >> SMP, but the problem is that only one CPU is found when dom0 boots up. >> With the same change, we know at least change set 10033 is OK to boot with >> multiple CPUs. > >Make sure CONFIG_HOTPLUG_CPU is also enabled. After having both >CONFIG_SMP and CONFIG_HOTPLUG_CPU, try: > >xm vcpu-set 0 2 > >replacing 2 with however many cpu's you think dom0 should have. > >-- >Ryan Harper >Software Engineer; Linux Technology Center >IBM Corp., Austin, Tx >(512) 838-9253 T/L: 678-9253 >ryanh@xxxxxxxxxx _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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