| Message ID | 1588500367-1056-5-git-send-email-chenhc@lemote.com |
|---|---|
| State | New |
| Headers | show |
| Series | KVM: MIPS: Add Loongson-3 support (Host Side) | expand |
нед, 3. мај 2020. у 12:09 Huacai Chen <chenhc@lemote.com> је написао/ла: > > Add EVENTFD support for KVM/MIPS, which is needed by VHOST. Tested on > Loongson-3 platform. > > Signed-off-by: Huacai Chen <chenhc@lemote.com> > Co-developed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> > --- Perhaps this patch needs rebasing to land cleanly into master. But, in general, for what is worth: Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com> > 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 >
пет, 8. мај 2020. у 11:08 Aleksandar Markovic <aleksandar.qemu.devel@gmail.com> је написао/ла: > > нед, 3. мај 2020. у 12:09 Huacai Chen <chenhc@lemote.com> је написао/ла: > > > > Add EVENTFD support for KVM/MIPS, which is needed by VHOST. Tested on > > Loongson-3 platform. > > > > Signed-off-by: Huacai Chen <chenhc@lemote.com> > > Co-developed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> > > --- > > 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 <aleksandar.qemu.devel@gmail.com> > > > > 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 > >
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;
Add EVENTFD support for KVM/MIPS, which is needed by VHOST. Tested on Loongson-3 platform. Signed-off-by: Huacai Chen <chenhc@lemote.com> Co-developed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> --- 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(-)