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SubjectRe: [PATCH 3/13] KVM: kvm data structures
Arnd Bergmann wrote:
> On Thursday 26 October 2006 19:24, Avi Kivity wrote:
>
>> +struct kvm {
>> + spinlock_t lock; /* protects everything except vcpus */
>> + int nmemslots;
>> + struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS];
>> + struct list_head active_mmu_pages;
>> + struct kvm_vcpu vcpus[KVM_MAX_VCPUS];
>> + int memory_config_version;
>> + int busy;
>> +};
>>
>
> Assuming that you move to the host-user == guest-real memory
> model, will this data structure still be needed? It would
> be really nice if a guest could simply consist of a number
> of vcpu structures that happen to be used from threads in the
> same process address space, but I find it hard to tell if
> that is realistic.
>

We'd still need the shadow page table data structures (or the nested
page tables pgd).

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

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