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| author | Laszlo Ersek <lersek@redhat.com> | 2016-02-26 23:09:46 +0100 |
|---|---|---|
| committer | Laszlo Ersek <lersek@redhat.com> | 2016-03-03 10:00:24 +0100 |
| commit | 014b472053ae31e6b9fcdb5d4ee01e29b4d44fd4 (patch) | |
| tree | 32719d1b38c771a460a4341b724522084de51485 /MdeModulePkg/Include | |
| parent | 3da829657e67d01e39eb6cf8ef9754043271e2e7 (diff) | |
| download | edk2-platforms-014b472053ae31e6b9fcdb5d4ee01e29b4d44fd4.tar.xz | |
MdeModulePkg: PciHostBridgeDxe: don't assume extended config space
The "pc" ("pc-i440fx-*") machine types of QEMU don't support extended
config space. Accordingly, OVMF will use the following library instances
in connection with the core PciHostBridgeDxe driver:
BasePciSegmentLibPci [class: PciSegmentLib]
BasePciLibCf8 [class: PciLib]
BasePciCf8Lib [class: PciCf8Lib]
Add a new field to the PCI_ROOT_BRIDGE structure so that
RootBridgeIoCheckParameter() can catch config space offsets above 0xFF on
such old (emulated) platforms.
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Marcel Apfelbaum <marcel@redhat.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
Diffstat (limited to 'MdeModulePkg/Include')
| -rw-r--r-- | MdeModulePkg/Include/Library/PciHostBridgeLib.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/MdeModulePkg/Include/Library/PciHostBridgeLib.h b/MdeModulePkg/Include/Library/PciHostBridgeLib.h index 16ad104a93..b67ac5e17d 100644 --- a/MdeModulePkg/Include/Library/PciHostBridgeLib.h +++ b/MdeModulePkg/Include/Library/PciHostBridgeLib.h @@ -34,6 +34,10 @@ typedef struct { ///< and SetAttributes() in EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
BOOLEAN DmaAbove4G; ///< DMA above 4GB memory.
///< Set to TRUE when root bridge supports DMA above 4GB memory.
+ BOOLEAN NoExtendedConfigSpace; ///< When FALSE, the root bridge supports
+ ///< Extended (4096-byte) Configuration Space.
+ ///< When TRUE, the root bridge supports
+ ///< 256-byte Configuration Space only.
UINT64 AllocationAttributes; ///< Allocation attributes.
///< Refer to EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM and
///< EFI_PCI_HOST_BRIDGE_MEM64_DECODE used by GetAllocAttributes()
|