[Xen-devel] [PATCH 0/3] x86-64/MMCFG: assorted adjustments

["Jan Beulich" <JBeulich@xxxxxxxxxx>]

1: correct base address computation for regions not starting at bus 0
2: finally make Fam10 enabling work
3: pass down firmware (ACPI) reservation status of used memory space

Allen - I would especially appreciate your review of patch 1, as so far I
don't have a way to actually test this (the only system being possibly
accessible to me and having the necessary characteristics fails to boot
Xen far enough - I intend to work on this later, but this requires adding
multi-segment PCI support to Xen, which will have me touch quite a bit
of code).

One thing possibly getting in the way of the changes later to follow
this set is the use of scan_pci_devices() - neither is this suitable for
multi-segment configurations, nor is the early adding of devices
compatible with the now possible late enabling of MMCFG (both
pci_enable_acs() and enable_ats_device() depend on the extended
config space being accessible, and it's not clear whether having
them called at the point when Dom0 reports the devices wouldn't be
too late).

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>


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