From: Mikko Rapeli <mikko.rapeli@linaro.org>
To: u-boot@lists.denx.de
Cc: "Ilias Apalodimas" <ilias.apalodimas@linaro.org>,
"Jérôme Forissier" <jerome.forissier@linaro.org>
Subject: aarch64 u-boot reset loop with qemu USB and KVM
Date: Mon, 2 Jun 2025 13:28:38 +0300 [thread overview]
Message-ID: <aD181pYGA_0AqWdz@nuoska> (raw)
Hey,
As was discussed over yocto/OE-Core mailing list
https://lists.openembedded.org/g/openembedded-core/topic/113306017#msg217258
qemu machine with USB and KVM enabled goes into reset loop with
u-boot. I've tested u-boot 2025.04 and latest master branch 2025.07-rc3
( b22a276f039f818d5564bec6637071cfc8a7e432 ) with qemu_arm64_defconfig
from tree and CONFIG_BLOBLIST disabled since that to has issues with KVM
( https://lists.denx.de/pipermail/u-boot/2025-May/590101.html )-
To reproduce:
* qemu 10 or 8.2.2, version does not seem to matter
* aarch64 native machine with KVM support
* qemu-system-aarch64 command line:
$ qemu-system-aarch64 -machine virt -cpu host -machine gic-version=3 -smp 1 -enable-kvm \
-m 256 -serial mon:stdio -serial null -nographic -vga none \
-bios u-boot.bin \
-device qemu-xhci -device usb-tablet -device usb-kbd
U-Boot 2025.07-rc3 (May 30 2025 - 19:44:05 +0000)
DRAM: 256 MiB
using memory 0x4e662000-0x4f6a2000 for malloc()
Core: 51 devices, 14 uclasses, devicetree: board
Flash: 64 MiB
Loading Environment from Flash... *** Warning - bad CRC, using default environment
In: serial,usbkbd
Out: serial,vidconsole
Err: serial,vidconsole
Register 8001040 NbrPorts 8
Starting the controller
"Synchronous Abort" handler, esr 0x96000010, far 0x10100040
elr: 000000000005a360 lr : 000000000005a344 (reloc)
elr: 000000004f6fc360 lr : 000000004f6fc344
x0 : 0000000010100040 x1 : 0000000000000001
x2 : 0000000000000000 x3 : 0000000000003e80
x4 : 0000000000000038 x5 : 000000004e66fed2
x6 : 0000000000000000 x7 : 0000000000000000
x8 : 0000000000000000 x9 : 000000000001869f
x10: 000000000000000d x11: 0000000000000006
x12: 000000004e561a68 x13: 000000004e561dd0
x14: 0000000000000002 x15: 0000000000000000
x16: 000000004f6ee774 x17: 0000000000000000
x18: 000000004e661dd0 x19: 000000004e670480
x20: 0000000000000000 x21: 0000000010100040
x22: 0000000010100000 x23: 0000000000000000
x24: 0000000000000000 x25: 0000000000000000
x26: 0000000000000000 x27: 0000000000000000
x28: 0000000000000000 x29: 000000004e670360
Code: d5033fbf aa1503e0 5287d003 52800002 (b8004401)
Resetting CPU ...
resetting ...
With KVM disabled, or the qemu USB devices disabled, boot with u-boot prompt and
to full target system works.
Cheers,
-Mikko
next reply other threads:[~2025-06-02 10:28 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-02 10:28 Mikko Rapeli [this message]
2025-06-02 11:24 ` aarch64 u-boot reset loop with qemu USB and KVM Mikko Rapeli
2025-06-03 6:20 ` Ilias Apalodimas
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=aD181pYGA_0AqWdz@nuoska \
--to=mikko.rapeli@linaro.org \
--cc=ilias.apalodimas@linaro.org \
--cc=jerome.forissier@linaro.org \
--cc=u-boot@lists.denx.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox