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Re: [PATCH 0/2] i386: fixup number of logical CPUs when host-cache-info=
From: |
Moger, Babu |
Subject: |
Re: [PATCH 0/2] i386: fixup number of logical CPUs when host-cache-info=on |
Date: |
Wed, 25 May 2022 15:04:13 -0500 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.9.1 |
On 5/25/22 02:05, Igor Mammedov wrote:
> On Tue, 24 May 2022 14:48:29 -0500
> "Moger, Babu" <babu.moger@amd.com> wrote:
>
>> On 5/24/22 10:19, Igor Mammedov wrote:
>>> On Tue, 24 May 2022 11:10:18 -0400
>>> Igor Mammedov <imammedo@redhat.com> wrote:
>>>
>>> CCing AMD folks as that might be of interest to them
>> I am trying to recreate the bug on my AMD system here.. Seeing this message..
>>
>> qemu-system-x86_64: -numa node,nodeid=0,memdev=ram-node0: memdev=ram-node0
>> is ambiguous
>>
>> Here is my command line..
>>
>> #qemu-system-x86_64 -name rhel8 -m 4096 -hda vdisk.qcow2 -enable-kvm -net
>> nicĀ -nographic -machine q35,accel=kvm -cpu
>> host,host-cache-info=on,l3-cache=off -smp
>> 20,sockets=2,dies=1,cores=10,threads=1 -numa
>> node,nodeid=0,memdev=ram-node0 -numa node,nodeid=1,memdev=ram-node1 -numa
>> cpu,socket-id=0,node-id=0 -numa cpu,socket-id=1,node-id=1
>>
>> Am I missing something?
> Yep, sorry I've omitted -object memory-backend-foo definitions for
> ram-node0 and ram-node1
>
> one can use any memory backend, it doesn't really matter in this case,
> for example following should do:
> -object memory-backend-ram,id=ram-node0,size=2G \
> -object memory-backend-ram,id=ram-node1,size=2G
Thanks Igor. However these changes(patch 1 and 2) does not affect AMD
systems as far i can see.
Thanks
Babu
>
>>
>>>
>>>> Igor Mammedov (2):
>>>> x86: cpu: make sure number of addressable IDs for processor cores
>>>> meets the spec
>>>> x86: cpu: fixup number of addressable IDs for logical processors
>>>> sharing cache
>>>>
>>>> target/i386/cpu.c | 20 ++++++++++++++++----
>>>> 1 file changed, 16 insertions(+), 4 deletions(-)
>>>>
--
Thanks
Babu Moger
- [PATCH 0/2] i386: fixup number of logical CPUs when host-cache-info=on, Igor Mammedov, 2022/05/24
- [PATCH 1/2] x86: cpu: make sure number of addressable IDs for processor cores meets the spec, Igor Mammedov, 2022/05/24
- [PATCH 2/2] x86: cpu: fixup number of addressable IDs for logical processors sharing cache, Igor Mammedov, 2022/05/24
- Re: [PATCH 0/2] i386: fixup number of logical CPUs when host-cache-info=on, Igor Mammedov, 2022/05/24
- Re: [PATCH 0/2] i386: fixup number of logical CPUs when host-cache-info=on, Igor Mammedov, 2022/05/25
- Re: [PATCH 0/2] i386: fixup number of logical CPUs when host-cache-info=on,
Moger, Babu <=
Re: [PATCH 0/2] i386: fixup number of logical CPUs when host-cache-info=on, Igor Mammedov, 2022/05/31