2018-01-24 16:38 GMT+03:00 Alexander Graf <[email protected]>:
>
>
> On 24.01.18 13:15, Matwey V. Kornilov wrote:
>> Hi,
>>
>> There is one more thing that is unclear to me now. As far as I
>> understand there is no other way except FDT to provide hardware layout
>> for armv7l kernel. Then, who is responsible for FDT loading? As far as
>> I understand it is grub2 task to load FDT from the table at
>> b1b621d5-f19c-41a5-.... And FDT is completely provided by UEFI
>> firmware. In case of u-boot, dtb file is loaded from the disk by means
>> of u-boot and placed into memory. What should happen here when OVMF is
>> used? In theory, it has to be configured to generate FDT from QEMU
>> config somehow, right? Or pass-through entire FDT from Qemu
>> hypervisor?
>
> It basically passes through the device tree that's generated by QEMU,
> yes. However, OVMF defaults changed a while back and it only exposes
> ACPI tables instead of DT in newer versions on AArch64 IIRC.
>
> Maybe something went wrong and they changed them for armv7 as well by
> accident?
>
I use latest version of aarch32 OVMF firmware from openSUSE:Factory:ARM.
Well, then, I suppose, I have to see appropriate EFI driver
(FdtClientDxe ? ) in the driver list.
Shell> drivers
T D
D Y C I
R P F A
V VERSION E G G #D #C DRIVER NAME IMAGE NAME
== ======== = = = == == =================================== ==========
6B 0000000A D - - 1 - Platform Console Management Driver
ConPlatformDxe
6C 0000000A D - - 1 - Platform Console Management Driver
ConPlatformDxe
6D 0000000A B - - 1 1 Console Splitter Driver
ConSplitterDxe
6E 0000000A ? - - - - Console Splitter Driver
ConSplitterDxe
6F 0000000A ? - - - - Console Splitter Driver
ConSplitterDxe
70 0000000A B - - 1 1 Console Splitter Driver
ConSplitterDxe
71 0000000A B - - 1 1 Console Splitter Driver
ConSplitterDxe
75 0000000A ? - - - - Graphics Console Driver
GraphicsConsoleDxe
76 0000000A B - - 1 1 Serial Terminal Driver
TerminalDxe
77 0000000A D - - 1 - Generic Disk I/O Driver DiskIoDxe
78 0000000B ? - - - - Partition Driver(MBR/GPT/El Torito)
PartitionDxe
79 0000000A ? - - - - FAT File System Driver Fat
7C 00000010 ? - - - - UDF File System Driver UdfDxe
7D 00000010 ? - - - - Virtio Block Driver
VirtioBlkDxe
7E 00000010 B - - 1 1 Virtio Network Driver
VirtioNetDxe
7F 00000010 ? - - - - Virtio SCSI Host Driver VirtioScsiDxe
80 00000010 ? - - - - Virtio Random Number Generator Driv VirtioRngDxe
81 0000000A B - - 1 1 ARP Network Service Driver ArpDxe
82 0000000A B - - 1 1 DHCP Protocol Driver Dhcp4Dxe
83 0000000A B - - 2 10 IP4 Network Service Driver Ip4Dxe
84 0000000A B - - 1 2 MNP Network Service Driver MnpDxe
85 0000000A B - - 1 1 VLAN Configuration Driver VlanConfigDxe
86 0000000A B - - 2 2 MTFTP4 Network Service Mtftp4Dxe
87 0000000A B - - 2 2 Tcp Network Service Driver Tcp4Dxe
88 0000000A B - - 6 10 UDP Network Service Driver Udp4Dxe
89 0000000A D - - 6 - UEFI PXE Base Code Driver UefiPxe4BcDxe
8A 0000000A D - - 1 - iSCSI Driver IScsi4Dxe
8C 0000000A ? - - - - SCSI Bus Driver ScsiBus
8D 0000000A ? - - - - Scsi Disk Driver ScsiDisk
8E 0000000A B - - 1 2 PCI Bus Driver PciBusDxe
90 00000010 D - - 1 - Virtio PCI Driver VirtioPciDeviceDxe
91 00000010 ? - - - - Virtio 1.0 PCI Driver Virtio10
92 00000010 ? - - - - Virtio GPU Driver VirtioGpuDxe
93 00000020 ? - - - - Usb Uhci Driver UhciDxe
94 00000030 ? - - - - Usb Ehci Driver EhciDxe
95 00000030 ? - - - - Usb Xhci Driver XhciDxe
96 0000000A ? - - - - Usb Bus Driver UsbBusDxe
97 0000000A ? - - - - Usb Keyboard Driver UsbKbDxe
98 00000011 ? - - - - Usb Mass Storage Driver UsbMassStorageDxe
--
With best regards,
Matwey V. Kornilov
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