| 1 |
On 02/10/2013 13:27, Stefan G. Weichinger wrote: |
| 2 |
> |
| 3 |
> I try to set up KVM/QEMU on that new and shiny AMD server |
| 4 |
> |
| 5 |
> 24 cores of Opteron: |
| 6 |
> |
| 7 |
> processor : 23 |
| 8 |
> vendor_id : AuthenticAMD |
| 9 |
> cpu family : 21 |
| 10 |
> model : 2 |
| 11 |
> model name : AMD Opteron(tm) Processor 6344 |
| 12 |
> |
| 13 |
> nice |
| 14 |
> |
| 15 |
> I want gentoo-sources-3.10.7 (stable and long term supported) or |
| 16 |
> 3.10.7-r1 (not yet on the machine). |
| 17 |
> |
| 18 |
> I don't get /dev/kvm :-( |
| 19 |
> |
| 20 |
> Right now I want this as a module "kvm_amd" or so. |
| 21 |
> |
| 22 |
> # zgrep -i kvm /proc/config.gz |
| 23 |
> CONFIG_HAVE_KVM=y |
| 24 |
> CONFIG_HAVE_KVM_IRQCHIP=y |
| 25 |
> CONFIG_HAVE_KVM_IRQ_ROUTING=y |
| 26 |
> CONFIG_HAVE_KVM_EVENTFD=y |
| 27 |
> CONFIG_KVM_APIC_ARCHITECTURE=y |
| 28 |
> CONFIG_KVM_MMIO=y |
| 29 |
> CONFIG_KVM_ASYNC_PF=y |
| 30 |
> CONFIG_HAVE_KVM_MSI=y |
| 31 |
> CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y |
| 32 |
> CONFIG_KVM=m |
| 33 |
> CONFIG_KVM_INTEL=m |
| 34 |
> CONFIG_KVM_AMD=m |
| 35 |
> |
| 36 |
> I compile the kernel with Canek's kerninst-script (see other thread). |
| 37 |
> |
| 38 |
> kvm_amd does not load and gives me dozens of: |
| 39 |
> |
| 40 |
> # dmesg | grep kvm | head |
| 41 |
> [ 13.460423] kvm_amd: Unknown symbol kvm_rdpmc (err 0) |
| 42 |
> [ 13.460429] kvm_amd: Unknown symbol kvm_read_guest_page (err 0) |
| 43 |
> [ 13.460437] kvm_amd: Unknown symbol kvm_requeue_exception (err 0) |
| 44 |
> [ 13.460439] kvm_amd: Unknown symbol kvm_exit (err 0) |
| 45 |
> [ 13.460441] kvm_amd: Unknown symbol kvm_init (err 0) |
| 46 |
> [ 13.460444] kvm_amd: Unknown symbol kvm_enable_efer_bits (err 0) |
| 47 |
> [ 13.460448] kvm_amd: Unknown symbol kvm_fast_pio_out (err 0) |
| 48 |
> [ 13.460453] kvm_amd: Unknown symbol gfn_to_page (err 0) |
| 49 |
|
| 50 |
Run "modinfo kvm kvm-amd" and check for discrepancies between the |
| 51 |
details of the two, especially regarding the vermagic field. |
| 52 |
|
| 53 |
> |
| 54 |
> *sigh* |
| 55 |
> |
| 56 |
> With the kernel booted I now do: |
| 57 |
> |
| 58 |
> cd /usr/src/linux |
| 59 |
> make clean modules modules_install |
| 60 |
|
| 61 |
I would suggest "make mrproper" to clean the source tree. Ensure that |
| 62 |
the .config has been backed up because it will be deleted as a result. |
| 63 |
|
| 64 |
> |
| 65 |
> and see if I can load the module(s) then. |
| 66 |
> |
| 67 |
> In general I am rather disappointed by the performance of this server. I |
| 68 |
> expected way more *bang* for the bucks ... |
| 69 |
> |
| 70 |
> still unsure if that clocksource-topic might be relevant or if my kernel |
| 71 |
> config is somehow stupid. |
| 72 |
> |
| 73 |
> Stefan |
| 74 |
|
| 75 |
--Kerin |
Archives