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Re: [PATCH V3 04/14] KVM: MIPS: Add EVENTFD support which is needed by V


From: Aleksandar Markovic
Subject: Re: [PATCH V3 04/14] KVM: MIPS: Add EVENTFD support which is needed by VHOST
Date: Fri, 8 May 2020 12:08:56 +0200

пет, 8. мај 2020. у 11:08 Aleksandar Markovic
<address@hidden> је написао/ла:
>
> нед, 3. мај 2020. у 12:09 Huacai Chen <address@hidden> је написао/ла:
> >
> > Add EVENTFD support for KVM/MIPS, which is needed by VHOST. Tested on
> > Loongson-3 platform.
> >
> > Signed-off-by: Huacai Chen <address@hidden>
> > Co-developed-by: Jiaxun Yang <address@hidden>
> > ---
>
> Perhaps this patch needs rebasing to land cleanly into master.
>

Or, maybe, my tree was out-of-date. Sorry if that was the case.

Yours,
Aleksandar

> But, in general, for what is worth:
>
> Reviewed-by: Aleksandar Markovic <address@hidden>
>
>
> >  arch/mips/kvm/Kconfig     | 1 +
> >  arch/mips/kvm/Makefile    | 2 +-
> >  arch/mips/kvm/trap_emul.c | 3 +++
> >  arch/mips/kvm/vz.c        | 3 +++
> >  4 files changed, 8 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/mips/kvm/Kconfig b/arch/mips/kvm/Kconfig
> > index b91d145..d697752 100644
> > --- a/arch/mips/kvm/Kconfig
> > +++ b/arch/mips/kvm/Kconfig
> > @@ -22,6 +22,7 @@ config KVM
> >         select EXPORT_UASM
> >         select PREEMPT_NOTIFIERS
> >         select KVM_GENERIC_DIRTYLOG_READ_PROTECT
> > +       select HAVE_KVM_EVENTFD
> >         select HAVE_KVM_VCPU_ASYNC_IOCTL
> >         select KVM_MMIO
> >         select MMU_NOTIFIER
> > diff --git a/arch/mips/kvm/Makefile b/arch/mips/kvm/Makefile
> > index 01affc1..0a3cef6 100644
> > --- a/arch/mips/kvm/Makefile
> > +++ b/arch/mips/kvm/Makefile
> > @@ -2,7 +2,7 @@
> >  # Makefile for KVM support for MIPS
> >  #
> >
> > -common-objs-y = $(addprefix ../../../virt/kvm/, kvm_main.o 
> > coalesced_mmio.o)
> > +common-objs-y = $(addprefix ../../../virt/kvm/, kvm_main.o 
> > coalesced_mmio.o eventfd.o)
> >
> >  EXTRA_CFLAGS += -Ivirt/kvm -Iarch/mips/kvm
> >
> > diff --git a/arch/mips/kvm/trap_emul.c b/arch/mips/kvm/trap_emul.c
> > index 5a11e83..f464506b 100644
> > --- a/arch/mips/kvm/trap_emul.c
> > +++ b/arch/mips/kvm/trap_emul.c
> > @@ -529,6 +529,9 @@ static int kvm_trap_emul_check_extension(struct kvm 
> > *kvm, long ext)
> >         case KVM_CAP_MIPS_TE:
> >                 r = 1;
> >                 break;
> > +       case KVM_CAP_IOEVENTFD:
> > +               r = 1;
> > +               break;
> >         default:
> >                 r = 0;
> >                 break;
> > diff --git a/arch/mips/kvm/vz.c b/arch/mips/kvm/vz.c
> > index dde2088..17932ab 100644
> > --- a/arch/mips/kvm/vz.c
> > +++ b/arch/mips/kvm/vz.c
> > @@ -2927,6 +2927,9 @@ static int kvm_vz_check_extension(struct kvm *kvm, 
> > long ext)
> >                 r = 2;
> >                 break;
> >  #endif
> > +       case KVM_CAP_IOEVENTFD:
> > +               r = 1;
> > +               break;
> >         default:
> >                 r = 0;
> >                 break;
> > --
> > 2.7.0
> >



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