On 5/26/21 10:14 PM, Laszlo Ersek wrote:
> The "OvmfPkg/Library/PciHostBridgeLibScan/PciHostBridgeLibScan.inf"
> instance is used in the following platforms in edk2:
> 
>   OvmfPkg/Bhyve/BhyveX64.dsc
>   OvmfPkg/OvmfXen.dsc
> 
> Neither Bhyve nor Xen provide a Q35 board, therefore the expression
> 
>   PcdGet16 (PcdOvmfHostBridgePciDevId) != INTEL_Q35_MCH_DEVICE_ID
> 
> always evaluates to TRUE, in the PciHostBridgeLibScan instance.
> 
> Replace the expression with constant TRUE, eliminating the PCD dependency.
> 
> (In effect, this reports that the root bridge being registered does not
> support extended PCI config space.)
> 
> Cc: Anthony Perard <anthony.per...@citrix.com>
> Cc: Ard Biesheuvel <ardb+tianoc...@kernel.org>
> Cc: Jordan Justen <jordan.l.jus...@intel.com>
> Cc: Julien Grall <jul...@xen.org>
> Cc: Peter Grehan <gre...@freebsd.org>
> Cc: Philippe Mathieu-Daudé <phi...@redhat.com>
> Cc: Rebecca Cran <rebe...@bsdio.com>
> Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2122
> Signed-off-by: Laszlo Ersek <ler...@redhat.com>
> ---
>  OvmfPkg/Library/PciHostBridgeLibScan/PciHostBridgeLibScan.inf | 4 ----
>  OvmfPkg/Library/PciHostBridgeLibScan/XenSupport.c             | 4 +---
>  2 files changed, 1 insertion(+), 7 deletions(-)

Reviewed-by: Philippe Mathieu-Daude <phi...@redhat.com>



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