On 05/06/2019 10:06, Roger Pau Monné wrote: >>> On a tangential note, there's also a dereference of dom_xen in >>> _pci_hide_device which doesn't trigger a page fault. Do we have >>> something mapped at linear address 0 on purpose? >> Yes, during early (legacy) boot. > FWIW, I'm booting from UEFI using multiboot2 and I didn't get a page > fault in _pci_hide_device.
What Jan actually meant was "non-EFI boot". The Grub2+Multiboot2 will have a mapping of 0, which hides the problem. ~Andrew _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
