On Fri, Aug 22, 2014 at 10:36:07AM +0200, Paolo Bonzini wrote: >Il 22/08/2014 01:30, Wanpeng Li ha scritto: >> Maybe I misunderstand your comments "On real hardware you could point >> the virtual-APIC page to an invalid address." >> http://lists.openwall.net/linux-kernel/2014/08/07/344 >> > >That referred to an address that doesn't correspond to RAM. You can use >addresses like these in a real processor. > >But the manual says that "if the “use TPR shadow” VM-execution control >is 1, VM entry ensures that the virtual-APIC address is 4-KByte aligned" >(24.6.8 Controls For APIC Virtualization). This is the check that is >missing.
Ok, thanks. Regards, Wanpeng Li > >Paolo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
