On Tue, Dec 07, 2010, Avi Kivity wrote about "Re: KVM call minutes for Nov 30": >... > All it requires is a > kvm_set_cr3() which will load the PDPTEs into the PDPTRs if PAE is > enabled. You may need to order the loading of CR0, CR3, CR4, and EFER > to achieve the desired effect. I did this more explicitly as: vmcs_writel(GUEST_CR3, get_vmcs12_fields(vcpu)->guest_cr3); vcpu->arch.cr3 = get_vmcs12_fields(vcpu)->guest_cr3; load_pdptrs(vcpu, vcpu->arch.walk_mmu, vcpu->arch.cr3); vmcs_write64(GUEST_PDPTR0, vcpu->arch.mmu.pdptrs[0]); vmcs_write64(GUEST_PDPTR1, vcpu->arch.mmu.pdptrs[1]); vmcs_write64(GUEST_PDPTR2, vcpu->arch.mmu.pdptrs[2]); vmcs_write64(GUEST_PDPTR3, vcpu->arch.mmu.pdptrs[3]); I'm still working on trying to simplify this code - I'll indeed try to see if I can use kvm_set_cr3 instead. Thanks for the suggestion. However, Even if it works, I have a concern on how nested vmx might brake in the future if kvm_set_cr3 is changed in some way that is irrelevant to nested. Nadav. -- Nadav Har'El | Tuesday, Dec 7 2010, 30 Kislev 5771 nyh@xxxxxxxxxxxxxxxxxxx |----------------------------------------- Phone +972-523-790466, ICQ 13349191 |We could wipe out world hunger if we knew http://nadav.harel.org.il |how to make AOL's Free CD's edible! -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
