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[34.92.144.28]) by smtp.gmail.com with ESMTPSA id u8sm7241341pgl.19.2020.04.13.00.23.24 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 13 Apr 2020 00:23:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=UVCxTnXHR3JksW4kNoRPYShJz0VQm0+u2ggksb/zVto=; b=YHKwQhQ8uYspWZKAckCJrtm72ODPhNdButAAJ27i9ZCefOlJDY//J9k6k+KGCG9+LI cljDdKd298diKZYs+1YwB3L5xRmmtSEe/0R0Tp1qGy9M6exVw2H/pM0AR7NFXsnsCwsL KwMoI/aRYOokKR/ub5d6FFHj2R0A/J+Kb8Fb1ozpAvLvzUq2zcJbQSC+WGsJ3InM64ER udEBtFP2AoLf2+YyzXXveF9V88yw5U5iNUEcF6jxoDOH+cd0NIROOZWwjuT7nwJ1L7MN zRJY4HD+dc2adbLRErSmlzHa3Rw6gJgc1PreAdODMduMyTn2NCpp66X0scK2Q54ikpur Ljug== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references; bh=UVCxTnXHR3JksW4kNoRPYShJz0VQm0+u2ggksb/zVto=; b=hxBrRjE35i7g5CP4ZTCWM3dq1ZQL2rv+6JqgaEWAQWYV+yqkdFLiC6jeDYtaOCB8di Tk5UWsZHL90VTLYeB2ZqO4YKHSxw5PA/NRyzCyspoQyjUBxNH1L7BoVBcYRge7l2he5O kZOVNZgbkqKrMMdB19hMHvrpEJ05tEozWkI/E4NrBdT4+KTmy6cxHUdnezPYE4bZYzEG AXrvMQfc6To5HwKavyM5TQh6OJ4hMT8wYMF3GuhB0veQTyXO1kLfiq0ywUvbBiHKj+cT K2+/IBGEmjGQsITjwMgoCjbW1jcZuHY54S9tP0Vqb8ZODiBssEy59+Sa1aFEttUPy6zV h/QA== X-Gm-Message-State: AGi0PuYTYn8lwL5k5s/loHm7SUKmmnqh5k1ZDlD9i0eJe2leFS7b9DLI N3DI0pCD0cpoTt279t5QVW8= X-Google-Smtp-Source: APiQypI1h6KmTeIWmHIup4Gdrnsdh7SfYOYPE5/YrcJrz5mweL0LD6nQ/PM51Xkrsv2zk27QQYZkow== X-Received: by 2002:a17:90a:fe18:: with SMTP id ck24mr21510792pjb.57.1586762607056; Mon, 13 Apr 2020 00:23:27 -0700 (PDT) From: Huacai Chen To: Paolo Bonzini , Thomas Bogendoerfer Subject: [PATCH 05/15] KVM: MIPS: Add EVENTFD support which is needed by VHOST Date: Mon, 13 Apr 2020 15:30:14 +0800 Message-Id: <1586763024-12197-6-git-send-email-chenhc@lemote.com> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1586763024-12197-1-git-send-email-chenhc@lemote.com> References: <1586763024-12197-1-git-send-email-chenhc@lemote.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::1041 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kvm@vger.kernel.org, Huacai Chen , qemu-devel@nongnu.org, Jiaxun Yang , linux-mips@vger.kernel.org, Fuxin Zhang , Huacai Chen Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Add EVENTFD support for KVM/MIPS, which is needed by VHOST. Tested on Loongson-3 platform. Signed-off-by: Huacai Chen Co-developed-by: Jiaxun Yang --- 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 eac25ae..80b0464 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 # =20 -common-objs-y =3D $(addprefix ../../../virt/kvm/, kvm_main.o coalesced_mmi= o.o) +common-objs-y =3D $(addprefix ../../../virt/kvm/, kvm_main.o coalesced_mmi= o.o eventfd.o) =20 EXTRA_CFLAGS +=3D -Ivirt/kvm -Iarch/mips/kvm =20 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 *kv= m, long ext) case KVM_CAP_MIPS_TE: r =3D 1; break; + case KVM_CAP_IOEVENTFD: + r =3D 1; + break; default: r =3D 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, lo= ng ext) r =3D 2; break; #endif + case KVM_CAP_IOEVENTFD: + r =3D 1; + break; default: r =3D 0; break; --=20 2.7.0