On Wed, Jan 23, 2013 at 1:20 PM, Frederic Weisbecker <fweis...@gmail.com> wrote:
> 2013/1/23 Sedat Dilek <sedat.di...@gmail.com>:
>> On Wed, Jan 23, 2013 at 1:11 PM, Frederic Weisbecker <fweis...@gmail.com>
>> wrote:
>>> 2013/1/23 Sedat Dilek <sedat.di...@gmail.com>:
>>>> On Wed, Jan 23, 2013 at 12:19 PM, Sedat Dilek <sedat.di...@gmail.com>
>>>> wrote:
>>>>> Hi Frederic,
>>>>>
>>>>> I wanted to 3.8-rc4-nohz3 [1] here on my Ubuntu/precise AMD64 system.
>>>>>
>>>>> Unfortunately, the build breaks like this:
>>>>>
>>>>> ERROR: "guest_enter" [arch/x86/kvm/kvm.ko] undefined!
>>>>> ERROR: "guest_exit" [arch/x86/kvm/kvm.ko] undefined!
>>>>>
>>>>
>>>> Looks like you tested with CONFIG_KVM=y (as module fails!).
>>>
>>> Yep. looks like I forgot some EXPORT_SYMBOL().
>>>
>>
>> Hmmm, that was my first thought, too, but about...
>>
>> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
>> index c243b81..fff0932 100644
>> --- a/arch/x86/kvm/x86.c
>> +++ b/arch/x86/kvm/x86.c
>> @@ -5713,7 +5713,7 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
>> if (req_immediate_exit)
>> smp_send_reschedule(vcpu->cpu);
>>
>> - kvm_guest_enter();
>> + guest_enter();
>>
>> if (unlikely(vcpu->arch.switch_db_regs)) {
>> set_debugreg(0, 7);
>
> Yeah, guest_enter and guest_exit need an EXPORT_SYMBOL() in
> kernel/context_tracking.c such that the module can find these
> functions.
My patch did not fix it!
kernel/context_tracking.c:114:EXPORT_SYMBOL_GPL(guest_enter);
kernel/context_tracking.c:123:EXPORT_SYMBOL_GPL(guest_exit);
[ build-log ]
ERROR: "guest_enter" [arch/x86/kvm/kvm.ko] undefined!
ERROR: "guest_exit" [arch/x86/kvm/kvm.ko] undefined!
make[3]: *** [__modpost] Error 1
$ egrep 'CONFIG_KVM|CONFIG_CONTEXT_TRACKING' linux/.config
CONFIG_CONTEXT_TRACKING=y
# CONFIG_CONTEXT_TRACKING_FORCE is not set
CONFIG_KVM_GUEST=y
CONFIG_KVM_APIC_ARCHITECTURE=y
CONFIG_KVM_MMIO=y
CONFIG_KVM_ASYNC_PF=y
CONFIG_KVM=m
CONFIG_KVM_INTEL=m
# CONFIG_KVM_AMD is not set
# CONFIG_KVM_MMU_AUDIT is not set
- Sedat -
--
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