installing kvm-76 on 2.6.24

installing kvm-76 on 2.6.24

[Sterling Windmill]

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 
kvm_intel: Unknown symbol kvm_clear_guest_page 
kvm_intel: Unknown symbol kvm_exit 
kvm_intel: Unknown symbol kvm_init 
kvm_intel: Unknown symbol kvm_enable_efer_bits 
kvm_intel: Unknown symbol kvm_timer_intr_post 
kvm_intel: Unknown symbol kvm_mmu_set_nonpresent_ptes 
kvm_intel: Unknown symbol gfn_to_page 
kvm_intel: Unknown symbol segment_base 
kvm_intel: Unknown symbol kvm_get_msr_common 
kvm_intel: Unknown symbol __kvm_set_memory_region 
kvm_intel: Unknown symbol kvm_vcpu_uninit 
kvm_intel: Unknown symbol kvm_emulate_halt 
kvm_intel: Unknown symbol kvm_set_apic_base 
kvm_intel: Unknown symbol kvm_report_emulation_failure 
kvm_intel: Unknown symbol kvm_lapic_find_highest_irr 
kvm_intel: Unknown symbol kvm_task_switch 
kvm_intel: Unknown symbol kvm_enable_tdp 
kvm_intel: Unknown symbol kvm_disable_tdp 
kvm_intel: Unknown symbol kvm_lmsw 
kvm_intel: Unknown symbol kvm_set_memory_region 
kvm_intel: Unknown symbol kvm_queue_exception 
kvm_intel: Unknown symbol emulate_instruction 
kvm_intel: Unknown symbol kvm_write_guest_page 
kvm_intel: Unknown symbol fx_init 
kvm_intel: Unknown symbol kvm_cpu_has_interrupt 
kvm_intel: Unknown symbol kvm_lapic_get_cr8 
kvm_intel: Unknown symbol kvm_set_cr3 
kvm_intel: Unknown symbol kvm_get_cr8 
kvm_intel: Unknown symbol kvm_x86_ops 
kvm_intel: Unknown symbol kvm_vcpu_cache 
kvm_intel: Unknown symbol kvm_emulate_hypercall 
kvm_intel: Unknown symbol load_pdptrs 
kvm_intel: Unknown symbol kvm_handle_fault_on_reboot 
kvm_intel: Unknown symbol kvm_mmu_unprotect_page_virt 
kvm_intel: Unknown symbol kvm_set_cr4 
kvm_intel: Unknown symbol kvm_set_cr0 
kvm_intel: Unknown symbol kvm_set_cr8 
kvm_intel: Unknown symbol kvm_lapic_enabled 
kvm_intel: Unknown symbol kvm_mmu_page_fault 
kvm_intel: Unknown symbol kvm_mmu_reset_context 
kvm_intel: Unknown symbol kvm_queue_exception_e 
kvm_intel: Unknown symbol kvm_emulate_cpuid 
kvm_intel: Unknown symbol kvm_vcpu_init 
kvm_intel: Unknown symbol gfn_to_hva 
kvm_intel: Unknown symbol kvm_mmu_invlpg 
kvm_intel: Unknown symbol kvm_set_msr_common 
kvm_intel: Unknown symbol kvm_mmu_set_base_ptes 
kvm_intel: Unknown symbol kvm_cpu_get_interrupt 
kvm_intel: Unknown symbol kvm_emulate_pio 
kvm_intel: Unknown symbol kvm_mmu_set_mask_ptes 
kvm_intel: Unknown symbol kvm_is_error_hva 

Re: installing kvm-76 on 2.6.24

[Sheng Yang]

On Mon, Sep 29, 2008 at 1:09 PM, Sterling Windmill <sterling@ampx.net> 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

Re: installing kvm-76 on 2.6.24

[Sterling Windmill]

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.

Thanks in advance,
Sterling Windmill

----- Original Message ----- 
From: "Sheng Yang" <yasker@gmail.com> 
To: "Sterling Windmill" <sterling@ampx.net> 
Cc: "kvm" <kvm@vger.kernel.org> 
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 <sterling@ampx.net> 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 

Re: installing kvm-76 on 2.6.24

[Sheng Yang]

On Mon, Sep 29, 2008 at 10:42 PM, Sterling Windmill <sterling@ampx.net> 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" <yasker@gmail.com>
> To: "Sterling Windmill" <sterling@ampx.net>
> Cc: "kvm" <kvm@vger.kernel.org>
> 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 <sterling@ampx.net> 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
>

Re: installing kvm-76 on 2.6.24

[Sterling Windmill]

It seems as though I need to insert vtd.o instead of vtd.c

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" <yasker@gmail.com> 
To: "Sterling Windmill" <sterling@ampx.net> 
Cc: "kvm" <kvm@vger.kernel.org> 
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 <sterling@ampx.net> 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" <yasker@gmail.com> 
> To: "Sterling Windmill" <sterling@ampx.net> 
> Cc: "kvm" <kvm@vger.kernel.org> 
> 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 <sterling@ampx.net> 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 
> 

Re: installing kvm-76 on 2.6.24

[Sheng Yang]

On Mon, Sep 29, 2008 at 11:18 PM, Sterling Windmill <sterling@ampx.net> 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" <yasker@gmail.com>
> To: "Sterling Windmill" <sterling@ampx.net>
> Cc: "kvm" <kvm@vger.kernel.org>
> 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 <sterling@ampx.net> 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" <yasker@gmail.com>
>> To: "Sterling Windmill" <sterling@ampx.net>
>> Cc: "kvm" <kvm@vger.kernel.org>
>> 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 <sterling@ampx.net> 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
>>
>

Re: installing kvm-76 on 2.6.24

[Amit Shah]

* On Monday 29 Sep 2008 20:59:56 Sheng Yang wrote:
> On Mon, Sep 29, 2008 at 11:18 PM, Sterling Windmill <sterling@ampx.net> 
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...

But that's just three messages of the several undefined symbols he's getting.

Re: installing kvm-76 on 2.6.24

[Sheng Yang]

On Tue, Sep 30, 2008 at 12:37 AM, Amit Shah <amit.shah@redhat.com> wrote:
> * On Monday 29 Sep 2008 20:59:56 Sheng Yang wrote:
>> On Mon, Sep 29, 2008 at 11:18 PM, Sterling Windmill <sterling@ampx.net>
> 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...
>
> But that's just three messages of the several undefined symbols he's getting.
>
I believe the following ones just because kvm.ko modules can't be insert in...

-- 
regards,
Yang, Sheng

Re: installing kvm-76 on 2.6.24

[Sterling Windmill]

I am able to run kvm-76 after recompiling my kernel with DMAR unset.

Thanks for the help!

----- Original Message ----- 
From: "Sheng Yang" <yasker@gmail.com> 
To: "Sterling Windmill" <sterling@ampx.net> 
Cc: "kvm" <kvm@vger.kernel.org> 
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 <sterling@ampx.net> 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" <yasker@gmail.com> 
> To: "Sterling Windmill" <sterling@ampx.net> 
> Cc: "kvm" <kvm@vger.kernel.org> 
> 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 <sterling@ampx.net> 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" <yasker@gmail.com> 
>> To: "Sterling Windmill" <sterling@ampx.net> 
>> Cc: "kvm" <kvm@vger.kernel.org> 
>> 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 <sterling@ampx.net> 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 
>> 
>