From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sterling Windmill Subject: Re: installing kvm-76 on 2.6.24 Date: Tue, 30 Sep 2008 20:29:34 -0400 (EDT) Message-ID: <113235058.831222820974165.JavaMail.root@mail.ampx.net> References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Cc: kvm To: Sheng Yang Return-path: Received: from mail.ampx.net ([208.64.38.105]:53564 "EHLO mail.ampx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751126AbYJAA3g (ORCPT ); Tue, 30 Sep 2008 20:29:36 -0400 In-Reply-To: Sender: kvm-owner@vger.kernel.org List-ID: I am able to run kvm-76 after recompiling my kernel with DMAR unset. Thanks for the help! ----- Original Message ----- From: "Sheng Yang" To: "Sterling Windmill" Cc: "kvm" Sent: Monday, September 29, 2008 11:29:56 AM GMT -05:00 US/Canada Eastern Subject: Re: installing kvm-76 on 2.6.24 On Mon, Sep 29, 2008 at 11:18 PM, Sterling Windmill wrote: > It seems as though I need to insert vtd.o instead of vtd.c Yeah... That's vtd.o :) And I forgot, if you want to compile vtd.c, you need compile kvm kernel space rather than other kernel version for we modified host kernel side. Sorry for I don't have a box by hand so that I can't check every detail... I suppose you want to keep your kernel? Maybe disable CONFIG_DMAR is more easy... -- regards, Yang, Sheng > > My Kbuild file now looks like this: > > # trick to get the kvm-specific CONFIG_KVM_* definitions, > # because the kernel source tree won't have them > include $(obj)/../config.kbuild > > obj-m := kvm.o kvm-intel.o kvm-amd.o > kvm-objs := vtd.o kvm_main.o x86.o mmu.o x86_emulate.o ../anon_inodes.o irq.o i8 259.o \ > lapic.o ioapic.o preempt.o i8254.o coalesced_mmio.o \ > ../external-module-compat.o > ifeq ($(EXT_CONFIG_KVM_TRACE),y) > kvm-objs += kvm_trace.o > endif > kvm-intel-objs := vmx.o vmx-debug.o ../external-module-compat.o > kvm-amd-objs := svm.o ../external-module-compat.o > > CFLAGS_kvm_main.o = -DKVM_MAIN > > The modules do compile with this option specified. > > Unfortunately, the error inserting the modules still persists. > > Any other ideas? > > ----- Original Message ----- > From: "Sheng Yang" > To: "Sterling Windmill" > Cc: "kvm" > Sent: Monday, September 29, 2008 10:51:53 AM GMT -05:00 US/Canada Eastern > Subject: Re: installing kvm-76 on 2.6.24 > > On Mon, Sep 29, 2008 at 10:42 PM, Sterling Windmill wrote: >> Thank you for the information. I apologize for posting twice to the mailing list on the same issue. I was just trying to add some additional information. >> >> Could you tell me how to edit the Kbuild file for this purpose? I can also recompile my kernel, but that's a bit more difficult. > > Add vtd.c to kvm-userspace/kernel/x86/Kbuild kvm-objs item should get it done. > > -- > regards, > Yang, Sheng >> >> Thanks in advance, >> Sterling Windmill >> >> ----- Original Message ----- >> From: "Sheng Yang" >> To: "Sterling Windmill" >> Cc: "kvm" >> Sent: Monday, September 29, 2008 10:21:10 AM GMT -05:00 US/Canada Eastern >> Subject: Re: installing kvm-76 on 2.6.24 >> >> On Mon, Sep 29, 2008 at 1:09 PM, Sterling Windmill wrote: >>> I am running a custom compiled 2.6.24 kernel on a 64-bit Intel system and had no issues compling and running kvm-75. >>> >>> I downloaded kvm-76 and compiled and installed it, but I cannot get the modules to load properly. >>> >>> I have temporarily gone back to kvm-75. >>> >>> I am seeing this output in dmesg: >>> >>> kvm: Unknown symbol kvm_iommu_map_pages >>> kvm: Unknown symbol kvm_iommu_map_guest >>> kvm: Unknown symbol kvm_iommu_unmap_guest >> >> Seems you enabled CONFIG_DMAR in host kernel side? In theory, we >> should use CONFIG_DMAR with newly VT-d support in KVM, but the problem >> now is that userspace including compile option is not ready, so here >> comes compile problem. >> >> If you want to try kvm-76, you may try to disable CONFIG_DMAR in host >> kernel. Or just wait to userspace VT-d support merge (of course you >> can add vtd.c manually in Kbuild to overcome this compile issue). :) >> >> -- >> regards, >> Yang, Sheng >> >