Commit bf10efbb authored by Huacai Chen's avatar Huacai Chen Committed by Paolo Bonzini
Browse files

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: default avatarAleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Signed-off-by: default avatarHuacai Chen <chenhc@lemote.com>
Co-developed-by: default avatarJiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: <1590220602-3547-5-git-send-email-chenhc@lemote.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 210b4b91

arch/mips/kvm/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -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

arch/mips/kvm/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -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

arch/mips/kvm/trap_emul.c

+3 −0
Original line number Diff line number Diff line
@@ -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;

arch/mips/kvm/vz.c

+3 −0
Original line number Diff line number Diff line
@@ -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;

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