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OvmfPkg/PciHotPlugInitDxe: reserve more mmio space
In case the 64-bit pci mmio window is larger than the default size of 32G be generous and hand out larger chunks of address space for prefetchable mmio bridge windows. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
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@ -556,6 +556,7 @@ GetResourcePadding (
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EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS *Address;
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EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS *Address;
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BOOLEAN DefaultIo;
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BOOLEAN DefaultIo;
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BOOLEAN DefaultMmio;
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BOOLEAN DefaultMmio;
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BOOLEAN DefaultPrefMmio;
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RESOURCE_PADDING ReservationRequest;
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RESOURCE_PADDING ReservationRequest;
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EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *FirstResource;
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EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *FirstResource;
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EFI_STATUS ReservationHintStatus;
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EFI_STATUS ReservationHintStatus;
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@ -588,8 +589,9 @@ GetResourcePadding (
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return EFI_INVALID_PARAMETER;
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return EFI_INVALID_PARAMETER;
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}
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}
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DefaultIo = TRUE;
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DefaultIo = TRUE;
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DefaultMmio = TRUE;
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DefaultMmio = TRUE;
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DefaultPrefMmio = TRUE;
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//
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//
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// Init ReservationRequest, and point FirstResource one past the last
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// Init ReservationRequest, and point FirstResource one past the last
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@ -722,6 +724,7 @@ GetResourcePadding (
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HighBit = HighBitSetRoundUp32 (ReservationHint.Prefetchable32BitMmio);
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HighBit = HighBitSetRoundUp32 (ReservationHint.Prefetchable32BitMmio);
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if (HighBit != -1) {
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if (HighBit != -1) {
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SetMmioPadding (--FirstResource, TRUE, TRUE, (UINTN)HighBit);
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SetMmioPadding (--FirstResource, TRUE, TRUE, (UINTN)HighBit);
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DefaultPrefMmio = FALSE;
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}
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}
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} else if ((ReservationHint.Prefetchable64BitMmio > 0) &&
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} else if ((ReservationHint.Prefetchable64BitMmio > 0) &&
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(ReservationHint.Prefetchable64BitMmio < MAX_UINT64))
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(ReservationHint.Prefetchable64BitMmio < MAX_UINT64))
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@ -729,6 +732,7 @@ GetResourcePadding (
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HighBit = HighBitSetRoundUp64 (ReservationHint.Prefetchable64BitMmio);
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HighBit = HighBitSetRoundUp64 (ReservationHint.Prefetchable64BitMmio);
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if (HighBit != -1) {
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if (HighBit != -1) {
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SetMmioPadding (--FirstResource, TRUE, FALSE, (UINTN)HighBit);
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SetMmioPadding (--FirstResource, TRUE, FALSE, (UINTN)HighBit);
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DefaultPrefMmio = FALSE;
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}
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}
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}
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}
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}
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}
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@ -752,6 +756,19 @@ GetResourcePadding (
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);
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);
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}
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}
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if (DefaultPrefMmio) {
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UINT64 Pci64Size = PcdGet64 (PcdPciMmio64Size);
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if (Pci64Size > SIZE_32GB) {
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SetMmioPadding (
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--FirstResource,
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TRUE,
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FALSE,
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(UINTN)HighBitSetRoundUp64 (RShiftU64 (Pci64Size, 8))
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);
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}
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}
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//
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//
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// Output a copy of ReservationRequest from the lowest-address populated
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// Output a copy of ReservationRequest from the lowest-address populated
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// entry until the end of the structure (including
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// entry until the end of the structure (including
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@ -40,6 +40,7 @@
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[Pcd]
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[Pcd]
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gUefiOvmfPkgTokenSpaceGuid.PcdOvmfHostBridgePciDevId ## CONSUMES
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gUefiOvmfPkgTokenSpaceGuid.PcdOvmfHostBridgePciDevId ## CONSUMES
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gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio64Size ## CONSUMES
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[Depex]
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[Depex]
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TRUE
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TRUE
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