On 14/11/2016 11:33, Daniel P. Berrange wrote: > On Mon, Nov 14, 2016 at 11:28:04AM +0100, Paolo Bonzini wrote: >> >> >> On 14/11/2016 11:10, Daniel P. Berrange wrote: >>> There's already patches posted to create a virtio-pstore device for >>> QEMU, which is what led me to suggest this as an option: >>> >>> https://lists.nongnu.org/archive/html/qemu-devel/2016-09/msg00381.html >> >> It's also possible to use UEFI as a pstore backend. > > Presumably that'll also require some QEMU patches to provide storage > for UEFI's pstore ?
That's just the UEFI variable store. But for some reason Fedora doesn't set CONFIG_EFI_VARS, so the next possibility is to use ACPI ERST. This would not require any change to guests, unlike virtio-pstore. Paolo
