linux-kernel - Re: [PATCH 2/2] kvm: rename KVM_MAX_VCPU_ID to, KVM_MAX_VCPU

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <76d0db0f-57fe-2985-4916-175d913d99e4@xenosoft.de>
Date:   Tue, 5 Jul 2022 18:07:17 +0200
From:   Christian Zigotzky <chzigotzky@...osoft.de>
To:     Juergen Gross <jgross@...e.com>
Cc:     kvm@...r.kernel.org, x86@...nel.org, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mips@...r.kernel.org,
        kvm-ppc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-kselftest@...r.kernel.org,
        Paolo Bonzini <pbonzini@...hat.com>,
        Jonathan Corbet <corbet@....net>,
        "Huacai Chen," <chenhuacai@...nel.org>,
        "Aleksandar Markovic," <aleksandar.qemu.devel@...il.com>,
        "Thomas Bogendoerfer," <tsbogend@...ha.franken.de>,
        Paul Mackerras <paulus@...abs.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        "Benjamin Herrenschmidt," <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        "Vitaly, Kuznetsov" <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>, Shuah Khan <shuah@...nel.org>,
        Shuah Khan <skhan@...uxfoundation.org>,
        "R.T.Dickinson" <rtd2@...a.co.nz>,
        Darren Stevens <darren@...vens-zone.net>,
        mad skateman <madskateman@...il.com>
Subject: Re: [PATCH 2/2] kvm: rename KVM_MAX_VCPU_ID to, KVM_MAX_VCPU_IDS

On 14 September 2021 at 05:59 pm, Christian Zigotzky wrote:
> Hello Juergen,
> Hello All,
>
> Since the RC1 of kernel 5.13, -smp 2 and -smp 4 don't work with a 
> virtual e5500 QEMU KVM-HV machine anymore. [1]
> I see in the serial console, that the uImage doesn't load. I use the 
> following QEMU command for booting:
>
> qemu-system-ppc64 -M ppce500 -cpu e5500 -enable-kvm -m 1024 -kernel 
> uImage -drive format=raw,file=MintPPC32-X5000.img,index=0,if=virtio 
> -netdev user,id=mynet0 -device virtio-net,netdev=mynet0 -append "rw 
> root=/dev/vda" -device virtio-vga -device virtio-mouse-pci -device 
> virtio-keyboard-pci -device pci-ohci,id=newusb -device 
> usb-audio,bus=newusb.0 -smp 4
>
> The kernels boot without KVM-HV.
>
> Summary for KVM-HV:
>
> -smp 1 -> works
> -smp 2 -> doesn't work
> -smp 3 -> works
> -smp 4 -> doesn't work
>
> I used -smp 4 before the RC1 of kernel 5.13 because my FSL P5040 BookE 
> machine [2] has 4 cores.
>
> Does this patch solve this issue? [3]
>
> Thanks,
> Christian
>
> [1] https://lists.ozlabs.org/pipermail/linuxppc-dev/2021-May/229103.html
> [2] http://wiki.amiga.org/index.php?title=X5000
> [3] 
> https://lists.ozlabs.org/pipermail/linuxppc-dev/2021-September/234152.html
Hello,

Since the RC5 of kernel 5.19, -smp 2 and -smp 4 work again. I don't know 
which patch has solved the issue.

Cheers,
Christian