On Fri, Jul 31, 2020 at 08:49:38PM +0200, Julia Suvorova wrote:
> This feature allows MMCONFIG to be used even to access the base PCI
> config space [1]. This means increased performance: one access to
> MMCONFIG instead of two conventional accesses to I/O ports.
>
> Q35 makes no distinction in ba
This feature allows MMCONFIG to be used even to access the base PCI
config space [1]. This means increased performance: one access to
MMCONFIG instead of two conventional accesses to I/O ports.
Q35 makes no distinction in base or extended PCI config access to
MMCONFIG, MMCONFIG is always on, and i