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From: Brijesh Singh <brijesh.singh@amd.com>
To: edk2-devel@lists.01.org
Cc: Brijesh Singh <brijesh.singh@amd.com>,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	Jordan Justen <jordan.l.justen@intel.com>,
	Tom Lendacky <thomas.lendacky@amd.com>,
	Laszlo Ersek <lersek@redhat.com>
Subject: [PATCH v2 09/23] OvmfPkg/VirtioMmioDeviceLib: implement IOMMU-like member functions
Date: Mon, 14 Aug 2017 07:36:31 -0400	[thread overview]
Message-ID: <1502710605-8058-10-git-send-email-brijesh.singh@amd.com> (raw)
In-Reply-To: <1502710605-8058-1-git-send-email-brijesh.singh@amd.com>

The patch implements the newly added IOMMU-like member functions by
respectively delegating the job to:

- VIRTIO_DEVICE_PROTOCOL.AllocateSharedPages () ->
    MemoryAllocationLib.AllocatePages()

- VIRTIO_DEVICE_PROTOCOL.FreeSharedPages () ->
    MemoryAllocationLib.FreePages ()

- VIRTIO_DEVICE_PROTOCOL.MapSharedBuffer () -> no-op

- VIRTIO_DEVICE_PROTOCOL.UnmapSharedBuffer () -> no-op

Suggested-by: Laszlo Ersek <lersek@redhat.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
---
 OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDevice.h          | 34 +++++++++++
 OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c | 59 ++++++++++++++++++++
 2 files changed, 93 insertions(+)

diff --git a/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDevice.h b/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDevice.h
index bedd635e1a86..b69f6d7b7a85 100644
--- a/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDevice.h
+++ b/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDevice.h
@@ -137,4 +137,38 @@ VirtioMmioSetGuestFeatures (
   IN UINT64                  Features
   );
 
+EFI_STATUS
+EFIAPI
+VirtioMmioAllocateSharedPages (
+  IN  VIRTIO_DEVICE_PROTOCOL        *This,
+  IN  UINTN                         NumPages,
+  OUT VOID                          **HostAddress
+  );
+
+VOID
+EFIAPI
+VirtioMmioFreeSharedPages (
+  IN  VIRTIO_DEVICE_PROTOCOL        *This,
+  IN  UINTN                         NumPages,
+  IN  VOID                          *HostAddress
+  );
+
+EFI_STATUS
+EFIAPI
+VirtioMmioMapSharedBuffer (
+  IN      VIRTIO_DEVICE_PROTOCOL        *This,
+  IN      VIRTIO_MAP_OPERATION          Operation,
+  IN      VOID                          *HostAddress,
+  IN OUT  UINTN                         *NumberOfBytes,
+  OUT     EFI_PHYSICAL_ADDRESS          *DeviceAddress,
+  OUT     VOID                          **Mapping
+  );
+
+EFI_STATUS
+EFIAPI
+VirtioMmioUnmapSharedBuffer (
+  IN  VIRTIO_DEVICE_PROTOCOL        *This,
+  IN  VOID                          *Mapping
+  );
+
 #endif // _VIRTIO_MMIO_DEVICE_INTERNAL_H_
diff --git a/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c b/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c
index 9142d4a162c0..f3f69f324c6c 100644
--- a/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c
+++ b/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c
@@ -16,6 +16,8 @@
 
 **/
 
+#include <Library/MemoryAllocationLib.h>
+
 #include "VirtioMmioDevice.h"
 
 EFI_STATUS
@@ -293,3 +295,60 @@ VirtioMmioDeviceRead (
 
   return EFI_SUCCESS;
 }
+
+EFI_STATUS
+EFIAPI
+VirtioMmioAllocateSharedPages (
+  IN  VIRTIO_DEVICE_PROTOCOL  *This,
+  IN  UINTN                   NumPages,
+  OUT VOID                    **HostAddress
+  )
+{
+  VOID        *Buffer;
+
+  Buffer = AllocatePages (NumPages);
+  if (Buffer == NULL) {
+    return EFI_OUT_OF_RESOURCES;
+  }
+
+  *HostAddress = Buffer;
+  return EFI_SUCCESS;
+}
+
+VOID
+EFIAPI
+VirtioMmioFreeSharedPages (
+  IN  VIRTIO_DEVICE_PROTOCOL  *This,
+  IN  UINTN                   NumPages,
+  IN  VOID                    *HostAddress
+  )
+{
+  FreePages (HostAddress, NumPages);
+}
+
+EFI_STATUS
+EFIAPI
+VirtioMmioMapSharedBuffer (
+  IN      VIRTIO_DEVICE_PROTOCOL  *This,
+  IN      VIRTIO_MAP_OPERATION    Operation,
+  IN      VOID                    *HostAddress,
+  IN OUT  UINTN                   *NumberOfBytes,
+  OUT     EFI_PHYSICAL_ADDRESS    *DeviceAddress,
+  OUT     VOID                    **Mapping
+  )
+{
+  *DeviceAddress = (EFI_PHYSICAL_ADDRESS) (UINTN) HostAddress;
+  *Mapping = NULL;
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+VirtioMmioUnmapSharedBuffer (
+  IN  VIRTIO_DEVICE_PROTOCOL    *This,
+  OUT VOID                      *Mapping
+  )
+{
+  return EFI_SUCCESS;
+}
-- 
2.7.4



  parent reply	other threads:[~2017-08-14 11:34 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-14 11:36 [PATCH v2 00/21] OvmfPkg/Virtio: introduce IOMMU-like member functions Brijesh Singh
2017-08-14 11:36 ` [PATCH v2 01/23] OvmfPkg/VirtioPciDeviceDxe: supply missing BUS_MASTER attribute Brijesh Singh
2017-08-16  0:34   ` Laszlo Ersek
2017-08-14 11:36 ` [PATCH v2 02/23] OvmfPkg/Virtio10Dxe: " Brijesh Singh
2017-08-16  0:36   ` Laszlo Ersek
2017-08-14 11:36 ` [PATCH v2 03/23] OvmfPkg/VirtioPciDeviceDxe: add missing IN and OUT decoration Brijesh Singh
2017-08-16  0:36   ` Laszlo Ersek
2017-08-14 11:36 ` [PATCH v2 04/23] OvmfPkg/VirtioMmioDeviceLib: " Brijesh Singh
2017-08-16  0:37   ` Laszlo Ersek
2017-08-14 11:36 ` [PATCH v2 05/23] OvmfPkg/Virtio: fix comment style Brijesh Singh
2017-08-16  0:41   ` Laszlo Ersek
2017-08-14 11:36 ` [PATCH v2 06/23] OvmfPkg/Virtio: introduce IOMMU-like member functions to VIRTIO_DEVICE_PROTOCOL Brijesh Singh
2017-08-16 14:37   ` Laszlo Ersek
2017-08-16 15:58     ` Brijesh Singh
2017-08-14 11:36 ` [PATCH v2 07/23] OvmfPkg/Virtio10Dxe: implement IOMMU-like member functions Brijesh Singh
2017-08-16 14:59   ` Laszlo Ersek
2017-08-14 11:36 ` [PATCH v2 08/23] OvmfPkg/VirtioPciDeviceDxe: " Brijesh Singh
2017-08-16 15:32   ` Laszlo Ersek
2017-08-16 15:53     ` Brijesh Singh
2017-08-14 11:36 ` Brijesh Singh [this message]
2017-08-16 15:58   ` [PATCH v2 09/23] OvmfPkg/VirtioMmioDeviceLib: " Laszlo Ersek
2017-08-14 11:36 ` [PATCH v2 10/23] OvmfPkg/VirtioLib: add VirtioMapAllBytesInSharedBuffer() helper function Brijesh Singh
2017-08-16 16:47   ` Laszlo Ersek
2017-08-14 11:36 ` [PATCH v2 11/23] OvmfPkg/VirtioLib: take VirtIo instance in VirtioRingInit/VirtioRingUninit Brijesh Singh
2017-08-16 16:53   ` Laszlo Ersek
2017-08-14 11:36 ` [PATCH v2 12/23] OvmfPkg/VirtioLib: add functions to map/unmap VRING Brijesh Singh
2017-08-16 20:56   ` Laszlo Ersek
2017-08-14 11:36 ` [PATCH v2 13/23] OvmfPkg/Virtio: take RingBaseShift in VirtioSetQueueAddress() Brijesh Singh
2017-08-16 21:43   ` Laszlo Ersek
2017-08-16 21:51     ` Laszlo Ersek
2017-08-14 11:36 ` [PATCH v2 14/23] OvmfPkg/Virtio10Dxe: add the RingBaseShift offset Brijesh Singh
2017-08-16 21:57   ` Laszlo Ersek
2017-08-14 11:36 ` [PATCH v2 15/23] OvmfPkg/VirtioLib: alloc vring buffer with AllocateSharedPages() Brijesh Singh
2017-08-16 22:18   ` Laszlo Ersek
2017-08-14 11:36 ` [PATCH v2 16/23] OvmfPkg/VirtioRngDxe: map host address to device address Brijesh Singh
2017-08-21 14:05   ` Laszlo Ersek
2017-08-22 15:44     ` Brijesh Singh
2017-08-22 16:28       ` Laszlo Ersek
2017-08-14 11:36 ` [PATCH v2 17/23] OvmfPkg/VirtioBlkDxe: " Brijesh Singh
2017-08-21 15:24   ` Laszlo Ersek
2017-08-22  1:42     ` Brijesh Singh
     [not found]       ` <1387174d-0040-0072-5e36-c133fd7ec934@redhat.com>
2017-08-22 14:29         ` Brijesh Singh
2017-08-22 15:53           ` Laszlo Ersek
2017-08-14 11:36 ` [PATCH v2 18/23] OvmfPkg/VirtioScsiDxe: Use DeviceAddresses in vring descriptors Brijesh Singh
2017-08-21 19:08   ` Laszlo Ersek
2017-08-14 11:36 ` [PATCH v2 19/23] OvmfPkg/VirtioNetDxe: alloc Tx and Rx rings using AllocateSharedPage() Brijesh Singh
2017-08-14 11:36 ` [PATCH v2 20/23] OvmfPkg/VirtioNetDxe: alloc RxBuf using AllocateSharedPages() Brijesh Singh
2017-08-14 11:36 ` [PATCH v2 21/23] OvmfPkg/VirtioNetDxe: dynamically alloc transmit header Brijesh Singh
2017-08-14 11:36 ` [PATCH v2 22/23] OvmfPkg/VirtioNetDxe: map transmit buffer host address to device address Brijesh Singh
2017-08-14 11:36 ` [PATCH v2 23/23] OvmfPkg/Virtio: define VIRITO_F_IOMMU_PLATFORM feature bit Brijesh Singh
2017-08-21 15:40   ` Laszlo Ersek

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