public inbox for devel@edk2.groups.io
 help / color / mirror / Atom feed
* UefiPayloadPkg: Slimboot assign PCIe resource above 4GB. but not supported in UEFIPayload
@ 2020-08-12 14:22 Andrey V
  2020-08-12 17:48 ` [edk2-devel] " Laszlo Ersek
  0 siblings, 1 reply; 4+ messages in thread
From: Andrey V @ 2020-08-12 14:22 UTC (permalink / raw)
  To: devel

[-- Attachment #1: Type: text/plain, Size: 1289 bytes --]

Hi

I've encountered a problem after using the patch from SBL (slimboot) https://github.com/slimbootloader/slimbootloader/pull/809
The SBL supports resource allocation above the 4GB, but it fails on ASSERT [PciHostBridgeDxe] /home/andreyv/edk2/edk2/MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciRootBridgeIo.c(120): Bridge->Mem.Limit < 0x0000000100000000ULL

The proposed workaround for this is something like in function AdjustRootBridgeResource() of  UefiPayloadPkg\Library\PciHostBridgeLib\PciHostBridgeSupport.c :

VOID

AdjustRootBridgeResource (

IN  PCI_ROOT_BRIDGE_APERTURE *Io,

IN  PCI_ROOT_BRIDGE_APERTURE *Mem,

IN  PCI_ROOT_BRIDGE_APERTURE *MemAbove4G,

IN  PCI_ROOT_BRIDGE_APERTURE *PMem,

IN  PCI_ROOT_BRIDGE_APERTURE *PMemAbove4G

)

{

Io->Base = 0x1000;

Io->Limit = 0xEFFF;

Mem ->Base = 0x80000000;

Mem ->Limit = 0xCFFFFFFF;

PMem ->Base = MAX_UINT64;

PMem ->Limit = 0;

MemAbove4G->Base = MAX_UINT64;

MemAbove4G->Limit = 0;

PMemAbove4G->Base = 0x400000000ULL;

PMemAbove4G->Limit = 0x7FFFFFFFFULL;

}

It is working in my board using SBL, but still with a following error

PciHostBridge driver failed to set EFI_MEMORY_UC to MMIO aperture - Out of Resources.

Can someone help to resolve this issue ?

Andrey

[-- Attachment #2: Type: text/html, Size: 3681 bytes --]

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2020-08-20  9:47 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2020-08-12 14:22 UefiPayloadPkg: Slimboot assign PCIe resource above 4GB. but not supported in UEFIPayload Andrey V
2020-08-12 17:48 ` [edk2-devel] " Laszlo Ersek
2020-08-17 22:43   ` Guo Dong
2020-08-20  9:47     ` Andrey V

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox