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OvmfPkg: PlatformBdsLib: connect all PCI root buses

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Currently we only connect the root bus with bus number 0, by device path.
Soon we will possibly have several extra root buses, so connect all root
buses up-front (bus number zero and otherwise), by protocol GUID.

Cc: Jordan Justen <jordan.l.justen@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Regression-tested-by: Gabriel Somlo <somlo@cmu.edu>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17954 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Laszlo Ersek
2015-07-14 12:01:52 +00:00
committed by lersek
parent 7730ad6e5d
commit 2c34f3bc54
4 changed files with 18 additions and 75 deletions
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53
OvmfPkg/Library/PlatformBdsLib/BdsPlatform.c
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@@ -116,49 +116,27 @@ Returns:
EFI_STATUS
EFIAPI
ConnectRootBridge (
VOID
IN EFI_HANDLE RootBridgeHandle,
IN VOID *Instance,
IN VOID *Context
)
/*++
Routine Description:
Connect RootBridge
Arguments:
None.
Returns:
EFI_SUCCESS - Connect RootBridge successfully.
EFI_STATUS - Connect RootBridge fail.
--*/
{
EFI_STATUS Status;
EFI_HANDLE RootHandle;
EFI_STATUS Status;
//
// Make all the PCI_IO protocols on PCI Seg 0 show up
// Make the PCI bus driver connect the root bridge, non-recursively. This
// will produce a number of child handles with PciIo on them.
//
BdsLibConnectDevicePath (gPlatformRootBridges[0]);
Status = gBS->LocateDevicePath (
&gEfiDevicePathProtocolGuid,
&gPlatformRootBridges[0],
&RootHandle
Status = gBS->ConnectController (
RootBridgeHandle, // ControllerHandle
NULL, // DriverImageHandle
NULL, // RemainingDevicePath -- produce all
// children
FALSE // Recursive
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = gBS->ConnectController (RootHandle, NULL, NULL, FALSE);
if (EFI_ERROR (Status)) {
return Status;
}
return EFI_SUCCESS;
return Status;
}
@@ -1222,7 +1200,8 @@ Returns:
DEBUG ((EFI_D_INFO, "PlatformBdsPolicyBehavior\n"));
ConnectRootBridge ();
VisitAllInstancesOfProtocol (&gEfiPciRootBridgeIoProtocolGuid,
ConnectRootBridge, NULL);
if (PcdGetBool (PcdOvmfFlashVariablesEnable)) {
DEBUG ((EFI_D_INFO, "PlatformBdsPolicyBehavior: not restoring NvVars "