Re: KVM: MMU: nuke shadowed pgtable pages and pte's on memslot destruction

[Avi Kivity <avi@qumranet.com>]

Hollis Blanchard wrote:
> On Thu, 2008-07-10 at 20:49 -0300, Marcelo Tosatti wrote:
>   
>> diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
>> index b850d24..2c438a7 100644
>> --- a/arch/powerpc/kvm/powerpc.c
>> +++ b/arch/powerpc/kvm/powerpc.c
>> @@ -170,6 +170,11 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
>>         return 0;
>>  }
>>
>> +void kvm_arch_flush_shadow(struct kvm *kvm)
>> +{
>> +       return;
>> +}
>> +
>>  struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int
>> id)
>>  {
>>         struct kvm_vcpu *vcpu;
>>     
>
> By the way, what is the testcase for this, i.e. how do I remove a
> memslot?
>
>   

1. Memory hotunplug (perhaps not very relevant to embedded operating 
systems)
2. PCI memory resource remapping (aka framebuffers)


-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.