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| author | Huacai Chen <chenhc@lemote.com> | 2020-05-23 15:56:31 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-06-04 13:48:51 -0400 |
| commit | bf10efbb81bf0c7ae6ebac3320b5b40c323463f3 (patch) | |
| tree | e03313a07861c26909f9eed03fd144bc2739424c | |
| parent | 210b4b9112b699df4c33273bf7b02d9debd2f35e (diff) | |
| download | linux-stable-bf10efbb81bf0c7ae6ebac3320b5b40c323463f3.tar.gz linux-stable-bf10efbb81bf0c7ae6ebac3320b5b40c323463f3.tar.bz2 linux-stable-bf10efbb81bf0c7ae6ebac3320b5b40c323463f3.zip | |
KVM: MIPS: Add EVENTFD support which is needed by VHOST
Add EVENTFD support for KVM/MIPS, which is needed by VHOST. Tested on
Loongson-3 platform.
Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Co-developed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: <1590220602-3547-5-git-send-email-chenhc@lemote.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | arch/mips/kvm/Kconfig | 1 | ||||
| -rw-r--r-- | arch/mips/kvm/Makefile | 2 | ||||
| -rw-r--r-- | arch/mips/kvm/trap_emul.c | 3 | ||||
| -rw-r--r-- | arch/mips/kvm/vz.c | 3 |
4 files changed, 8 insertions, 1 deletions
diff --git a/arch/mips/kvm/Kconfig b/arch/mips/kvm/Kconfig index b91d145aa2d5..d697752a5723 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 01affc1d21c5..0a3cef6153fd 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 5a11e83dffe6..f464506b1fea 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 51f51009a53f..cc7fdbb9c108 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; |