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| author | Jiahui Cen via groups.io <cenjiahui=huawei.com@groups.io> | 2021-01-19 09:12:58 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2021-01-20 16:14:20 +0000 |
| commit | 4edba29651e363bd8ab4881f656df35524d8766a (patch) | |
| tree | 0f9692943a796ef1c79775467fb596b4836ed57d /OvmfPkg/Include/Library | |
| parent | aa445ce02b696935478c1bb4293df798cfce8c66 (diff) | |
| download | edk2-4edba29651e363bd8ab4881f656df35524d8766a.tar.gz edk2-4edba29651e363bd8ab4881f656df35524d8766a.tar.bz2 edk2-4edba29651e363bd8ab4881f656df35524d8766a.zip | |
OvmfPkg/PciHostBridgeLib: Extract GetRootBridges() / FreeRootBridges()
Extract PciHostBridgeGetRootBridges() / PciHostBridgeFreeRootBridges() to
PciHostBridgeUtilityLib as common utility functions to share support for
scanning extra root bridges.
No change of functionality.
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3059
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Signed-off-by: Jiahui Cen <cenjiahui@huawei.com>
Signed-off-by: Yubo Miao <miaoyubo@huawei.com>
Message-Id: <20210119011302.10908-8-cenjiahui@huawei.com>
[lersek@redhat.com: keep zeroing of (*Count) centralized]
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Diffstat (limited to 'OvmfPkg/Include/Library')
| -rw-r--r-- | OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h b/OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h index a44ad50345..2b7d5d3725 100644 --- a/OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h +++ b/OvmfPkg/Include/Library/PciHostBridgeUtilityLib.h @@ -100,6 +100,56 @@ PciHostBridgeUtilityUninitRootBridge ( /**
+ Utility function to return all the root bridge instances in an array.
+
+ @param[out] Count The number of root bridge instances.
+
+ @param[in] Attributes Initial attributes.
+
+ @param[in] AllocAttributes Allocation attributes.
+
+ @param[in] Io IO aperture.
+
+ @param[in] Mem MMIO aperture.
+
+ @param[in] MemAbove4G MMIO aperture above 4G.
+
+ @param[in] PMem Prefetchable MMIO aperture.
+
+ @param[in] PMemAbove4G Prefetchable MMIO aperture above 4G.
+
+ @return All the root bridge instances in an array.
+**/
+PCI_ROOT_BRIDGE *
+EFIAPI
+PciHostBridgeUtilityGetRootBridges (
+ OUT UINTN *Count,
+ IN UINT64 Attributes,
+ IN UINT64 AllocationAttributes,
+ 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
+ );
+
+
+/**
+ Utility function to free root bridge instances array from
+ PciHostBridgeUtilityGetRootBridges().
+
+ @param[in] Bridges The root bridge instances array.
+ @param[in] Count The count of the array.
+**/
+VOID
+EFIAPI
+PciHostBridgeUtilityFreeRootBridges (
+ IN PCI_ROOT_BRIDGE *Bridges,
+ IN UINTN Count
+ );
+
+
+/**
Utility function to inform the platform that the resource conflict happens.
@param[in] Configuration Pointer to PCI I/O and PCI memory resource
|