Il 11/09/2014 07:38, Tang Chen ha scritto:
> + if (vm_need_virtualize_apic_accesses(vmx->vcpu.kvm)) {
> + struct page *page = gfn_to_page(vmx->vcpu.kvm,
> + APIC_DEFAULT_PHYS_BASE >> PAGE_SHIFT);
> + vmcs_write64(APIC_ACCESS_ADDR, page_to_phys
To make apic access page migratable, we do not pin it in memory now.
When it is migrated, we should reload its physical address for all
vmcses. But when we tried to do this, all vcpu will access
kvm_arch->apic_access_page without any locking. This is not safe.
Actually, we do not need kvm_arch->ap
