There is a DEBUG warning printout in VirtioMmioDeviceLib if the current
device's VendorID does not match the traditional 16-bit Red Hat PCIe
vendor ID used with virtio-pci. The virtio-mmio vendor ID is 32-bit and
has no connection to the PCIe registry.
Most specifically, this causes a bunch of noise when booting an AArch64
QEMU platform, since QEMU's virtio-mmio implementation used 'QEMU' as
the vendor ID:
VirtioMmioInit: Warning:
The VendorId (0x554D4551) does not match the VirtIo VendorId (0x1AF4).
Drop the warning message.
Cc: Jordan Justen <jordan.l.jus...@intel.com>
Cc: Laszlo Ersek <ler...@redhat.com>
Cc: Ard Biesheuvel <ard.biesheu...@arm.com>
Signed-off-by: Leif Lindholm <l...@nuviainc.com>
---
.../VirtioMmioDeviceLib/VirtioMmioDevice.c | 15 ---------------
1 file changed, 15 deletions(-)
diff --git a/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDevice.c
b/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDevice.c
index 2f20272c1445..6dbbba008c75 100644
--- a/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDevice.c
+++ b/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDevice.c
@@ -58,7 +58,6 @@ VirtioMmioInit (
)
{
UINT32 MagicValue;
- UINT32 VendorId;
UINT32 Version;
//
@@ -84,20 +83,6 @@ VirtioMmioInit (
return EFI_UNSUPPORTED;
}
- //
- // Double-check MMIO-specific values
- //
- VendorId = VIRTIO_CFG_READ (Device, VIRTIO_MMIO_OFFSET_VENDOR_ID);
- if (VendorId != VIRTIO_VENDOR_ID) {
- //
- // The ARM Base and Foundation Models do not report a valid VirtIo
VendorId.
- // They return a value of 0x0 for the VendorId.
- //
- DEBUG((DEBUG_WARN, "VirtioMmioInit: Warning: The VendorId (0x%X) does not "
- "match the VirtIo VendorId (0x%X).\n",
- VendorId, VIRTIO_VENDOR_ID));
- }
-
return EFI_SUCCESS;
}
--
2.20.1
-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#65203): https://edk2.groups.io/g/devel/message/65203
Mute This Topic: https://groups.io/mt/76803916/21656
Group Owner: devel+ow...@edk2.groups.io
Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com]
-=-=-=-=-=-=-=-=-=-=-=-
