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| author | Gerd Hoffmann <kraxel@redhat.com> | 2021-08-27 21:44:57 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2021-08-30 01:05:49 +0000 |
| commit | 6a3e9576b835a766b558864d798f71b0d61136f6 (patch) | |
| tree | 1800799766d83d1b286d09764e426523bf61a6b6 /OvmfPkg | |
| parent | 537a724421393191f8a47eae6653b071e970016e (diff) | |
| download | edk2-6a3e9576b835a766b558864d798f71b0d61136f6.tar.gz edk2-6a3e9576b835a766b558864d798f71b0d61136f6.tar.bz2 edk2-6a3e9576b835a766b558864d798f71b0d61136f6.zip | |
OvmfPkg/VirtioMmioDeviceLib: virtio 1.0: Add default QueueNum
Use QueueNumMax as QueueNum default for drivers which do not
explicitly call VIRTIO_DEVICE_PROTOCOL->SetQueueSize().
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Diffstat (limited to 'OvmfPkg')
| -rw-r--r-- | OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDevice.h | 1 | ||||
| -rw-r--r-- | OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c | 12 |
2 files changed, 12 insertions, 1 deletions
diff --git a/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDevice.h b/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDevice.h index 0c2f99633c..5ad951f415 100644 --- a/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDevice.h +++ b/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDevice.h @@ -30,6 +30,7 @@ typedef struct {
UINT32 Signature;
UINT32 Version;
+ UINT16 QueueNum;
VIRTIO_DEVICE_PROTOCOL VirtioDevice;
PHYSICAL_ADDRESS BaseAddress;
} VIRTIO_MMIO_DEVICE;
diff --git a/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c b/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c index cb1f9358ea..436da2a2b4 100644 --- a/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c +++ b/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c @@ -83,7 +83,11 @@ VirtioMmioSetQueueSize ( Device = VIRTIO_MMIO_DEVICE_FROM_VIRTIO_DEVICE (This);
- VIRTIO_CFG_WRITE (Device, VIRTIO_MMIO_OFFSET_QUEUE_NUM, QueueSize);
+ if (Device->Version == VIRTIO_MMIO_DEVICE_VERSION_0_95) {
+ VIRTIO_CFG_WRITE (Device, VIRTIO_MMIO_OFFSET_QUEUE_NUM, QueueSize);
+ } else {
+ Device->QueueNum = QueueSize;
+ }
return EFI_SUCCESS;
}
@@ -171,6 +175,10 @@ VirtioMmioSetQueueSel ( VIRTIO_CFG_WRITE (Device, VIRTIO_MMIO_OFFSET_QUEUE_SEL, Sel);
+ if (Device->Version == VIRTIO_MMIO_DEVICE_VERSION_0_95) {
+ Device->QueueNum = VIRTIO_CFG_READ (Device, VIRTIO_MMIO_OFFSET_QUEUE_NUM_MAX) & 0xFFFF;
+ }
+
return EFI_SUCCESS;
}
@@ -193,6 +201,8 @@ VirtioMmioSetQueueAddress ( VIRTIO_CFG_WRITE (Device, VIRTIO_MMIO_OFFSET_QUEUE_PFN,
(UINT32)((UINTN)Ring->Base >> EFI_PAGE_SHIFT));
} else {
+ VIRTIO_CFG_WRITE (Device, VIRTIO_MMIO_OFFSET_QUEUE_NUM, Device->QueueNum);
+
Address = (UINTN)Ring->Base;
VIRTIO_CFG_WRITE (Device, VIRTIO_MMIO_OFFSET_QUEUE_DESC_LO,
(UINT32)Address);
|