On Thu, Apr 06, 2023 at 06:38:16AM +1200, Simon Glass wrote: (virtio device number 31 vs. blk index 0)
This is strange. Can you try 'dm uclass' to see the sequence number for the virtio device? I would expect it to be 0, but I might not fully understand virtio.
Hi Simon,
Thank you for looking into this. Here is the `dm uclass' extract corresponding to virtio on this Qemu system:
uclass 126: virtio 0 * virtio_mmio@a000000 @ 7ee977d0, seq 0 1 * virtio_mmio@a000200 @ 7ee97870, seq 1 2 * virtio_mmio@a000400 @ 7ee97910, seq 2 3 * virtio_mmio@a000600 @ 7ee979b0, seq 3 4 * virtio_mmio@a000800 @ 7ee97a50, seq 4 5 * virtio_mmio@a000a00 @ 7ee97af0, seq 5 6 * virtio_mmio@a000c00 @ 7ee97b90, seq 6 7 * virtio_mmio@a000e00 @ 7ee97c30, seq 7 8 * virtio_mmio@a001000 @ 7ee97cd0, seq 8 9 * virtio_mmio@a001200 @ 7ee97d70, seq 9 10 * virtio_mmio@a001400 @ 7ee97e10, seq 10 11 * virtio_mmio@a001600 @ 7ee97eb0, seq 11 12 * virtio_mmio@a001800 @ 7ee97f50, seq 12 13 * virtio_mmio@a001a00 @ 7ee97ff0, seq 13 14 * virtio_mmio@a001c00 @ 7ee98090, seq 14 15 * virtio_mmio@a001e00 @ 7ee98130, seq 15 16 * virtio_mmio@a002000 @ 7ee981d0, seq 16 17 * virtio_mmio@a002200 @ 7ee98270, seq 17 18 * virtio_mmio@a002400 @ 7ee98310, seq 18 19 * virtio_mmio@a002600 @ 7ee983b0, seq 19 20 * virtio_mmio@a002800 @ 7ee98450, seq 20 21 * virtio_mmio@a002a00 @ 7ee984f0, seq 21 22 * virtio_mmio@a002c00 @ 7ee98590, seq 22 23 * virtio_mmio@a002e00 @ 7ee98630, seq 23 24 * virtio_mmio@a003000 @ 7ee986d0, seq 24 25 * virtio_mmio@a003200 @ 7ee98770, seq 25 26 * virtio_mmio@a003400 @ 7ee98810, seq 26 27 * virtio_mmio@a003600 @ 7ee988b0, seq 27 28 * virtio_mmio@a003800 @ 7ee98950, seq 28 29 * virtio_mmio@a003a00 @ 7ee989f0, seq 29 30 * virtio_mmio@a003c00 @ 7ee98a90, seq 30 31 * virtio_mmio@a003e00 @ 7ee98b30, seq 31
(issue with multiple virtio devices)
Please also see this:
https://patchwork.ozlabs.org/project/uboot/patch/20230402140231.v7.3.Ifa423a...
(or the whole series)
Thank you for this patch!
When combined with the patch from Mathew[1], it does indeed repair the case of efi boot with two virtio disks, specifically when the first virtio disk is the one we want to boot from. FWIW, the system will not boot when I invert the two virtio disks.
Best regards, Vincent.
[1]: https://lists.denx.de/pipermail/u-boot/2023-April/514527.html