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ArmVirtPkg/FdtPciHostBridgeLib: Add extra pci root buses support 

In order to take advantages of extra pci root buses in ArmVirtPkg, it is
necessary to scan extra root buses when getting root briges. And now
PciHostBridgeUtilityLib already provides a set of utility functions that
support for extra pci root buses, like PciHostBridgeUtilityGetRootBridges()
/ PciHostBridgeUtilityFreeRootBridges(). So let's rebase
ArmVirtPkg/FdtPciHostBridgeLib to PciHostBridgeUtilityGetRootBridges() /
PciHostBridgeUtilityFreeRootBridges() to extend ArmVirtPkg with extra
pci root buses support.

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3059

Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Signed-off-by: Jiahui Cen <cenjiahui@huawei.com>
Signed-off-by: Yubo Miao <miaoyubo@huawei.com>
Message-Id: <20210119011302.10908-11-cenjiahui@huawei.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Jiahui Cen via groups.io 2021-01-19 09:13:01 +08:00 committed by mergify[bot]
parent f4a257a355
commit c4cbd86493
1 changed files with 4 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
ArmVirtPkg/Library/FdtPciHostBridgeLib/FdtPciHostBridgeLib.c
View File

@ -272,8 +272,6 @@ ProcessPciHost (
return Status;
}
STATIC PCI_ROOT_BRIDGE mRootBridge;
/**
Return all the root bridge instances in an array.
@ -361,8 +359,8 @@ PciHostBridgeGetRootBridges (
PMemAbove4G.Base = MAX_UINT64;
PMemAbove4G.Limit = 0;
Status = PciHostBridgeUtilityInitRootBridge (
Attributes,
return PciHostBridgeUtilityGetRootBridges (
Count,
Attributes,
AllocationAttributes,
TRUE,
@ -373,19 +371,8 @@ PciHostBridgeGetRootBridges (
&Mem,
&MemAbove4G,
&PMem,
&PMemAbove4G,
&mRootBridge
&PMemAbove4G
);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "%a: failed to initialize PCI host bridge: %r\n",
__FUNCTION__, Status));
*Count = 0;
return NULL;
}
*Count = 1;
return &mRootBridge;
}
/**
@ -402,8 +389,7 @@ PciHostBridgeFreeRootBridges (
UINTN Count
)
{
ASSERT (Count == 1);
PciHostBridgeUtilityUninitRootBridge (Bridges);
PciHostBridgeUtilityFreeRootBridges (Bridges, Count);
}
/**