Re: [PATCH 0/5] acpi/ghes: Error object handling improvement

[Gavin Shan <gshan@redhat.com>]

Hi Mauro,

On 12/2/25 12:31 AM, Mauro Carvalho Chehab wrote:
> On Tue, 2 Dec 2025 00:13:06 +1000
> Gavin Shan <gshan@redhat.com> wrote:
>> On 12/1/25 10:17 PM, Mauro Carvalho Chehab wrote:
>>> On Thu, 27 Nov 2025 10:44:30 +1000
>>> Gavin Shan <gshan@redhat.com> wrote:

[...]

>>>
>>> Btw, what setup are you using to test memory errors? It would be
>>> nice to have it documented somewhere, maybe at
>>> docs/specs/acpi_hest_ghes.rst.
>>>    
>>
>> I don't think docs/specs/acpi_hest_ghes.rst is the right place for that
>> as it's for specifications.
> 
> Perhaps not, but it would be nice to have it documented somewhere,
> either there or at QEMU wiki.
> 

QEMU wiki may be the best place for it. I never updated to QEMU wiki and
any guiding steps on how to do that?

>> I'm sharing how this is tested here to make the thread complete.
> 
> Thanks!
> 
>>
>> - Both host and guest has 4KB page size
>>
>> - Start the guest by the following command lines
>>
>>     /home/gavin/sandbox/qemu.main/build/qemu-system-aarch64                  \
>>     -accel kvm -machine virt,gic-version=host,nvdimm=on,ras=on               \
>>     -cpu host -smp maxcpus=8,cpus=8,sockets=2,clusters=2,cores=2,threads=1   \
>>     -m 4096M,slots=16,maxmem=128G                                            \
>>     -object memory-backend-ram,id=mem0,size=4096M                            \
>>     -numa node,nodeid=0,cpus=0-7,memdev=mem0                                 \
>>     -L /home/gavin/sandbox/qemu.main/build/pc-bios                           \
>>     -monitor none -serial mon:stdio -nographic                               \
>>     -gdb tcp::6666 -qmp tcp:localhost:5555,server,wait=off                   \
>>     -bios /home/gavin/sandbox/qemu.main/build/pc-bios/edk2-aarch64-code.fd   \
>>     -boot c                                                                  \
>>     -device pcie-root-port,bus=pcie.0,chassis=1,id=pcie.1                    \
>>     -device pcie-root-port,bus=pcie.0,chassis=2,id=pcie.2                    \
>>     -device pcie-root-port,bus=pcie.0,chassis=3,id=pcie.3                    \
>>        :                                                                     \
>>     -device pcie-root-port,bus=pcie.0,chassis=16,id=pcie.16                  \
>>     -drive file=/home/gavin/sandbox/images/disk.qcow2,if=none,id=drive0      \
>>     -device virtio-blk-pci,id=virtblk0,bus=pcie.1,drive=drive0,num-queues=4  \
>>     -netdev tap,id=tap1,vhost=true,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown \
>>     -device virtio-net-pci,bus=pcie.8,netdev=tap1,mac=52:54:00:f1:26:b0
>>
>> - Trigger 'victim -d' in the guest
> 
> Hmm... from where I can get victim?
> 

https://git.kernel.org/pub/scm/utils/cpu/mce/mce-test.git

> Regards,
> Mauro
> 

Thanks,
Gavin