[PATCH v1 0/2] x86/pci: MMCFG improvements and always use it if available

["Teddy Astie" <teddy.astie@xxxxxxxxxx>]

Currently, Xen uses legacy method to access the configuration space unless the
access cannot be made with it, where Xen fallbacks to MMCFG. This is not really
great, as MMCFG is more flexible and doesn't require a dedicated lock, so it 
would
be preferable to use it whenever possible.

Teddy Astie (2):
  x86/pci: Improve pci_mmcfg_{read,write} error handling
  x86/pci: Prefer using mmcfg for accessing configuration space

 xen/arch/x86/x86_64/mmconfig_64.c | 10 +++---
 xen/arch/x86/x86_64/pci.c         | 52 ++++++++++++++-----------------
 2 files changed, 28 insertions(+), 34 deletions(-)

-- 
2.52.0



--
Teddy Astie | Vates XCP-ng Developer

XCP-ng & Xen Orchestra - Vates solutions

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