Hi Bruce and Saul,
On 10/16/21 09:18, Jacob Kroon via lists.openembedded.org wrote:
Hi Bruce,
My Yocto images (which uses the linux-yocto kernel) stopped booting in
QEMU some time ago, and after some debugging it turns out this was
because the upstream Linux kernel removed the legacy IDE driver. Instead
one should use the libata driver. However, I don't think the linux-yocto
kernel has builtin support for the HW that is emulated by QEMU by
default (PIIX), instead it is built as a module, CONFIG_ATA_PIIX=m. If I
set CONFIG_ATA_PIIX=y, my images boot again.
I did a "make ARCH=i386 defconfig" in Torvalds master linux tree, and
the .config has CONFIG_ATA_PIIX=y.
Do you think it would make sense to have the support builtin in
linux-yocto aswell ?
I'm using KMACHINE = "common-pc". CC:ing Saul Wold, since I see that
commit 0d4f5ed5dca41a48423ce738131e52f7863d8ca6 in yocto-kernel-cache did:
diff --git a/bsp/common-pc/common-pc-drivers.cfg
b/bsp/common-pc/common-pc-drivers.cfg
index 71608433..0b821903 100644
--- a/bsp/common-pc/common-pc-drivers.cfg
+++ b/bsp/common-pc/common-pc-drivers.cfg
@@ -5,7 +5,8 @@ CONFIG_PCI_MSI=y
CONFIG_ATA=y
CONFIG_ATA_ACPI=y
CONFIG_ATA_SFF=y
-CONFIG_ATA_PIIX=y
+CONFIG_ATA_BMDMA=y
+CONFIG_ATA_PIIX=m
CONFIG_INPUT=y
CONFIG_INPUT_MOUSEDEV=y
which changed ATA_PIIX from a builtin to a module. Maybe this wasn't
intentional ?
Regards Jacob
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