Re: [PATCH v6 0/2] LongArch: KVM: Add DMSINTC support irqchip in kernel

[Huacai Chen]

On Tue, Mar 3, 2026 at 11:54 AM gaosong <gaosong@xxxxxxxxxxx> wrote:
>
> 在 2026/2/6 上午11:34, Yao Zi 写道:
> > On Fri, Feb 06, 2026 at 09:20:26AM +0800, Song Gao wrote:
> >> Hi,
> >>
> >> This series  implements the DMSINTC in-kernel irqchip device,
> >> enables irqfd to deliver MSI to DMSINTC, and supports injecting MSI interrupts
> >> to the target vCPU.
> >> applied this series.  use netperf test.
> >> VM with one CPU and start netserver, host run netperf.
> >> disable dmsintc
> >> taskset 0x2f  netperf -H 192.168.122.204 -t UDP_RR  -l 36000
> >> Local /Remote
> >> Socket Size   Request  Resp.   Elapsed  Trans.
> >> Send   Recv   Size     Size    Time     Rate
> >> bytes  Bytes  bytes    bytes   secs.    per sec
> >>
> >> 212992 212992 1        1       36000.00   27107.36
> >>
> >> enable dmsintc
> >> Local /Remote
> >> Socket Size   Request  Resp.   Elapsed  Trans.
> >> Send   Recv   Size     Size    Time     Rate
> >> bytes  Bytes  bytes    bytes   secs.    per sec
> >>
> >> 212992 212992 1        1       36000.00   28831.14  (+6.3%)
> >>
> >> v6:
> >>    Fix kvm_device leak in kvm_dmsintc_destroy().
> >>
> >> v5:
> >>    Combine patch2 and patch3
> >>    Add check msgint feature when register DMSINT device.
> >>
> >> V4: Rebase and R-b;
> >>     replace DINTC to DMSINTC.
> >>
> >>
> >> V3: Fix kvm_arch_set_irq_inatomic() missing dmsintc set msi.(patch3)
> >>
> >> V2:
> >> https://patchew.org/linux/20251128091125.2720148-1-gaosong@xxxxxxxxxxx/
> >>
> >> Thanks.
> >> Song Gao
> >>
> >> Song Gao (2):
> >>    LongArch: KVM: Add DMSINTC device support
> >>    LongArch: KVM: Add dmsintc inject msi to the dest vcpu
> > There's a typo in the titles, it should be LoongArch instead of
> > "LongArch".
>
> Hi,   huacai
>
> Should I need send v7 to fix this typo error?
Wait a moment, maybe there are other comments.

Huacai

>
> Thanks.
>
> Song Gao
> >
> > Best regards,
> > Yao Zi
> >
> >
>