OvmfPkg/PlatformBootManagerLib: port PlatformBdsConnectSequence to UefiBootManagerLib

[mirror_edk2.git] / OvmfPkg / VirtioBlkDxe / VirtioBlk.c

diff --git a/OvmfPkg/VirtioBlkDxe/VirtioBlk.c b/OvmfPkg/VirtioBlkDxe/VirtioBlk.c
index 75f85ca6e09ad01fdadf8bc3245596c8cac45873..f1c3f87e202700451e7286475cd22217a0167398 100644 (file)
--- a/OvmfPkg/VirtioBlkDxe/VirtioBlk.c
+++ b/OvmfPkg/VirtioBlkDxe/VirtioBlk.c
@@ -324,7 +324,8 @@ SynchronousRequest (
   //\r
   // virtio-blk's only virtqueue is #0, called "requestq" (see Appendix D).\r
   //\r
-  if (VirtioFlush (Dev->VirtIo, 0, &Dev->Ring, &Indices) == EFI_SUCCESS &&\r
+  if (VirtioFlush (Dev->VirtIo, 0, &Dev->Ring, &Indices,\r
+        NULL) == EFI_SUCCESS &&\r
       HostStatus == VIRTIO_BLK_S_OK) {\r
     return EFI_SUCCESS;\r
   }\r
@@ -592,7 +593,7 @@ VirtioBlkInit (
   UINT8      NextDevStat;\r
   EFI_STATUS Status;\r
 \r
-  UINT32     Features;\r
+  UINT64     Features;\r
   UINT64     NumSectors;\r
   UINT32     BlockSize;\r
   UINT8      PhysicalBlockExp;\r
@@ -691,6 +692,20 @@ VirtioBlkInit (
     }\r
   }\r
 \r
+  Features &= VIRTIO_BLK_F_BLK_SIZE | VIRTIO_BLK_F_TOPOLOGY | VIRTIO_BLK_F_RO |\r
+              VIRTIO_BLK_F_FLUSH | VIRTIO_F_VERSION_1;\r
+\r
+  //\r
+  // In virtio-1.0, feature negotiation is expected to complete before queue\r
+  // discovery, and the device can also reject the selected set of features.\r
+  //\r
+  if (Dev->VirtIo->Revision >= VIRTIO_SPEC_REVISION (1, 0, 0)) {\r
+    Status = Virtio10WriteFeatures (Dev->VirtIo, Features, &NextDevStat);\r
+    if (EFI_ERROR (Status)) {\r
+      goto Failed;\r
+    }\r
+  }\r
+\r
   //\r
   // step 4b -- allocate virtqueue\r
   //\r
@@ -729,22 +744,21 @@ VirtioBlkInit (
   //\r
   // step 4c -- Report GPFN (guest-physical frame number) of queue.\r
   //\r
-  Status = Dev->VirtIo->SetQueueAddress (Dev->VirtIo,\r
-      (UINT32) ((UINTN) Dev->Ring.Base >> EFI_PAGE_SHIFT));\r
+  Status = Dev->VirtIo->SetQueueAddress (Dev->VirtIo, &Dev->Ring);\r
   if (EFI_ERROR (Status)) {\r
     goto ReleaseQueue;\r
   }\r
 \r
 \r
   //\r
-  // step 5 -- Report understood features. There are no virtio-blk specific\r
-  // features to negotiate in virtio-0.9.5, plus we do not want any of the\r
-  // device-independent (known or unknown) VIRTIO_F_* capabilities (see\r
-  // Appendix B).\r
+  // step 5 -- Report understood features.\r
   //\r
-  Status = Dev->VirtIo->SetGuestFeatures (Dev->VirtIo, 0);\r
-  if (EFI_ERROR (Status)) {\r
-    goto ReleaseQueue;\r
+  if (Dev->VirtIo->Revision < VIRTIO_SPEC_REVISION (1, 0, 0)) {\r
+    Features &= ~(UINT64)VIRTIO_F_VERSION_1;\r
+    Status = Dev->VirtIo->SetGuestFeatures (Dev->VirtIo, Features);\r
+    if (EFI_ERROR (Status)) {\r
+      goto ReleaseQueue;\r
+    }\r
   }\r
 \r
   //\r