Hart isolation configuration failure (error -3) with OpenSBI 1.8 on QEMU 10.1.3 rva22s64/rva23s64 profiles

[Daniel Henrique Barboza]

On 1/8/2026 10:33 AM, Anup Patel wrote:
> Hi Thomas,
> 
> On Wed, Jan 7, 2026 at 3:02 PM Thomas Perrot <thomas.perrot at bootlin.com> wrote:
>>
>> Hello Xiang,
>>
>> On Wed, 2026-01-07 at 10:48 +0800, Xiang W wrote:
>>> 在 2026-01-05一的 18:42 +0100，Thomas Perrot写道：
>>>> Hello,
>>>>
>>>> Happy New Year!
>>>>
>>>> I'm facing a hart isolation configuration error when running
>>>> OpenSBI
>>>> 1.8 on QEMU 10.1.3 with the RISC-V application profiles rva22s64
>>>> and
>>>> rva23s64:
>>>>
>>>>      init_coldboot: hart isolation configure failed (error -3)
>>>>
>>>> No issue occurs when using the rv64 profile. The system continues
>>>> to
>>>> boot after the error, but I'd like to understand the root cause.
>>>>
>>>> I haven't tested OpenSBI 1.8 on real hardware yet - that's my next
>>>> step.
>>>>
>>>> Is there a known QEMU issue? Is there a recommended workaround
>>>> besides
>>>> using rv64?
>>>>
>>>> Below is the complete trace:
>>>>
>>>> qemu-system-riscv64 -device virtio-net-
>>>> device,netdev=net0,mac=52:54:00:12:35:02 -netdev
>>>> user,id=net0,hostfwd=tcp:127.0.0.1:2222-
>>>> :22,hostfwd=tcp:127.0.0.1:2323-
>>>> :23,tftp=/src/build/tmp/deploy/images/qemuriscv64 -object rng-
>>>> random,filename=/dev/urandom,id=rng0 -device virtio-rng-
>>>> pci,rng=rng0 -
>>>> drive id=disk0,file=/src/build/tmp/deploy/images/qemuriscv64/core-
>>>> image-minimal-qemuriscv64.rootfs-
>>>> 20260105173847.ext4,if=none,format=raw
>>>> -device virtio-blk-device,drive=disk0 -device qemu-xhci -device
>>>> usb-
>>>> tablet -device usb-kbd  -machine virt -cpu rva23s64 -smp 4 -m 256 -
>>> QEMU disables PMP by default; the following option needs to be added.
>>>
>>> -cpu rva23s64,pmp=true
>>>
>>
>> Thank you. With the additional option, the issue no longer occurs.
> 
> I have done an incremental OpenSBI v1.8.1 release
> to address this issue. With this incremental release,
> you don't have to explicitly pass "pmp=true" to
> rva22s64 and rva23s64 CPU types in QEMU.

Seems like we don't need this patch I sent a few days ago then:


"[PATCH] target/riscv/cpu.c: enable PMP by default for profile CPUs"

https://lore.kernel.org/qemu-devel/20260106205152.3654975-1-daniel.barboza@oss.qualcomm.com/


We can leave this patch alone. We can also leave the update to OpenSBI 
1.8 alone as well and update to 1.8.1 to get the fix.


Thanks,

Daniel



> 
> Regards,
> Anup
>