The patch implements the newly added member functions by respectively delegating the job to:
- MemoryApplicationLib.AllocatePages () -- with BootServicesData - MemoryApplicationLib.FreePages () - no-op (host address is same as device DMA address) - no-op Suggested-by: Laszlo Ersek <[email protected]> Cc: Ard Biesheuvel <[email protected]> Cc: Jordan Justen <[email protected]> Cc: Tom Lendacky <[email protected]> Cc: Laszlo Ersek <[email protected]> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Brijesh Singh <[email protected]> --- OvmfPkg/VirtioPciDeviceDxe/VirtioPciDevice.h | 34 ++++++++++ OvmfPkg/VirtioPciDeviceDxe/VirtioPciDevice.c | 7 ++- OvmfPkg/VirtioPciDeviceDxe/VirtioPciFunctions.c | 66 ++++++++++++++++++++ 3 files changed, 106 insertions(+), 1 deletion(-) diff --git a/OvmfPkg/VirtioPciDeviceDxe/VirtioPciDevice.h b/OvmfPkg/VirtioPciDeviceDxe/VirtioPciDevice.h index 8f17a16c88f5..da98de123000 100644 --- a/OvmfPkg/VirtioPciDeviceDxe/VirtioPciDevice.h +++ b/OvmfPkg/VirtioPciDeviceDxe/VirtioPciDevice.h @@ -3,6 +3,7 @@ Internal definitions for the VirtIo PCI Device driver Copyright (C) 2013, ARM Ltd + Copyright (c) 2017, AMD Inc, All rights reserved.<BR> This program and the accompanying materials are licensed and made available under the terms and conditions of the BSD License which accompanies this @@ -156,4 +157,37 @@ VirtioPciSetDeviceStatus ( UINT8 DeviceStatus ); +EFI_STATUS +EFIAPI +VirtioPciAllocateSharedPages ( + VIRTIO_DEVICE_PROTOCOL *This, + UINTN NumPages, + VOID **HostAddress + ); + +VOID +EFIAPI +VirtioPciFreeSharedPages ( + VIRTIO_DEVICE_PROTOCOL *This, + UINTN NumPages, + VOID *HostAddress + ); + +EFI_STATUS +EFIAPI +VirtioPciMapSharedBuffer ( + VIRTIO_DEVICE_PROTOCOL *This, + VIRTIO_MAP_OPERATION Operation, + VOID *HostAddress, + UINTN *NumberOfBytes, + EFI_PHYSICAL_ADDRESS *DeviceAddress, + VOID **Mapping + ); + +EFI_STATUS +EFIAPI +VirtioPciUnmapSharedBuffer ( + VIRTIO_DEVICE_PROTOCOL *This, + VOID *Mapping + ); #endif // _VIRTIO_PCI_DEVICE_DXE_H_ diff --git a/OvmfPkg/VirtioPciDeviceDxe/VirtioPciDevice.c b/OvmfPkg/VirtioPciDeviceDxe/VirtioPciDevice.c index bc4f6fe8bfa3..4e4e21d9a477 100644 --- a/OvmfPkg/VirtioPciDeviceDxe/VirtioPciDevice.c +++ b/OvmfPkg/VirtioPciDeviceDxe/VirtioPciDevice.c @@ -5,6 +5,7 @@ Copyright (C) 2012, Red Hat, Inc. Copyright (c) 2012 - 2016, Intel Corporation. All rights reserved.<BR> Copyright (C) 2013, ARM Ltd. + Copyright (C) 2017, AMD Inc, All rights reserved.<BR> This program and the accompanying materials are licensed and made available under the terms and conditions of the BSD License which accompanies this @@ -40,7 +41,11 @@ STATIC VIRTIO_DEVICE_PROTOCOL mDeviceProtocolTemplate = { VirtioPciGetDeviceStatus, // GetDeviceStatus VirtioPciSetDeviceStatus, // SetDeviceStatus VirtioPciDeviceWrite, // WriteDevice - VirtioPciDeviceRead // ReadDevice + VirtioPciDeviceRead, // ReadDevice + VirtioPciAllocateSharedPages, // AllocateSharedPages + VirtioPciFreeSharedPages, // FreeSharedPages + VirtioPciMapSharedBuffer, // MapSharedBuffer + VirtioPciUnmapSharedBuffer, // UnmapSharedBuffer }; /** diff --git a/OvmfPkg/VirtioPciDeviceDxe/VirtioPciFunctions.c b/OvmfPkg/VirtioPciDeviceDxe/VirtioPciFunctions.c index 243aa14c2421..1c587e184311 100644 --- a/OvmfPkg/VirtioPciDeviceDxe/VirtioPciFunctions.c +++ b/OvmfPkg/VirtioPciDeviceDxe/VirtioPciFunctions.c @@ -5,6 +5,7 @@ Copyright (C) 2012, Red Hat, Inc. Copyright (c) 2012, Intel Corporation. All rights reserved.<BR> Copyright (C) 2013, ARM Ltd. + Copyright (C) 2017, AMD Inc, All rights reserved.<BR> This program and the accompanying materials are licensed and made available under the terms and conditions of the BSD License which accompanies this @@ -271,3 +272,68 @@ VirtioPciSetDeviceStatus ( return VirtioPciIoWrite (Dev, VIRTIO_PCI_OFFSET_QUEUE_DEVICE_STATUS, sizeof (UINT8), DeviceStatus); } + +EFI_STATUS +EFIAPI +VirtioPciAllocateSharedPages ( + VIRTIO_DEVICE_PROTOCOL *This, + UINTN NumPages, + VOID **HostAddress + ) +{ + EFI_STATUS Status; + EFI_PHYSICAL_ADDRESS PhysicalAddress; + + Status = gBS->AllocatePages ( + AllocateAnyPages, + EfiBootServicesData, + NumPages, + &PhysicalAddress + ); + if (!EFI_ERROR (Status)) { + *HostAddress = (VOID *) (UINTN) PhysicalAddress; + } + + return Status; +} + +VOID +EFIAPI +VirtioPciFreeSharedPages ( + VIRTIO_DEVICE_PROTOCOL *This, + UINTN NumPages, + VOID *HostAddress + ) +{ + gBS->FreePages ((EFI_PHYSICAL_ADDRESS) (UINTN)HostAddress, NumPages); +} + +EFI_STATUS +EFIAPI +VirtioPciMapSharedBuffer ( + VIRTIO_DEVICE_PROTOCOL *This, + VIRTIO_MAP_OPERATION Operation, + VOID *HostAddress, + UINTN *NumberOfBytes, + EFI_PHYSICAL_ADDRESS *DeviceAddress, + VOID **Mapping + ) +{ + EFI_PHYSICAL_ADDRESS PhysicalAddress; + + PhysicalAddress = (EFI_PHYSICAL_ADDRESS) (UINTN) HostAddress; + + *DeviceAddress = PhysicalAddress; + + return EFI_SUCCESS; +} + +EFI_STATUS +EFIAPI +VirtioPciUnmapSharedBuffer ( + VIRTIO_DEVICE_PROTOCOL *This, + VOID *Mapping + ) +{ + return EFI_SUCCESS; +} -- 2.7.4 _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
