Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932474AbbDMMgl (ORCPT ); Mon, 13 Apr 2015 08:36:41 -0400 Received: from mail-wi0-f169.google.com ([209.85.212.169]:35259 "EHLO mail-wi0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932351AbbDMMcw (ORCPT ); Mon, 13 Apr 2015 08:32:52 -0400 From: Eric Auger To: eric.auger@st.com, eric.auger@linaro.org, christoffer.dall@linaro.org, marc.zyngier@arm.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, alex.williamson@redhat.com, pbonzini@redhat.com Cc: linux-kernel@vger.kernel.org, patches@linaro.org, feng.wu@intel.com, b.reynal@virtualopensystems.com Subject: [RFC v6 11/16] KVM: kvm-vfio: wrappers for vfio_external_{mask|is_active|set_automasked} Date: Mon, 13 Apr 2015 14:29:26 +0200 Message-Id: <1428928171-18884-12-git-send-email-eric.auger@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1428928171-18884-1-git-send-email-eric.auger@linaro.org> References: <1428928171-18884-1-git-send-email-eric.auger@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2420 Lines: 89 Those 3 new wrapper functions call the respective VFIO external functions. Signed-off-by: Eric Auger --- - v4: creation - v5 -> v6: x vfio.h modifications duly moved in "VFIO: platform: add vfio_external_{mask|is_active|set_automasked}" x all external functions use vfio_device handle x change proto of above function (unsigned index, unsigned start, unsigned count); also return int. --- virt/kvm/vfio.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) diff --git a/virt/kvm/vfio.c b/virt/kvm/vfio.c index 80a45e4..f4e86d3 100644 --- a/virt/kvm/vfio.c +++ b/virt/kvm/vfio.c @@ -134,6 +134,58 @@ static void kvm_vfio_put_vfio_device(struct vfio_device *vdev) kvm_vfio_device_put_external_user(vdev); } +int kvm_vfio_external_is_active(struct vfio_device *vdev, + unsigned index, unsigned start, unsigned count) +{ + int (*fn)(struct vfio_device *, unsigned index, unsigned start, + unsigned count); + bool active; + + fn = symbol_get(vfio_external_is_active); + if (!fn) + return -ENXIO; + + active = fn(vdev, index, start, count); + + symbol_put(vfio_external_is_active); + return active; +} + +int kvm_vfio_external_mask(struct vfio_device *vdev, unsigned index, + unsigned start, unsigned count) +{ + int ret; + int (*fn)(struct vfio_device *, unsigned index, unsigned start, + unsigned count); + + fn = symbol_get(vfio_external_mask); + if (!fn) + return -ENXIO; + + ret = fn(vdev, index, start, count); + + symbol_put(vfio_external_mask); + return ret; +} + +int kvm_vfio_external_set_automasked(struct vfio_device *vdev, + unsigned index, unsigned start, + unsigned count, bool automasked) +{ + int ret; + int (*fn)(struct vfio_device *, unsigned index, unsigned start, + unsigned count, bool automasked); + + fn = symbol_get(vfio_external_set_automasked); + if (!fn) + return -ENXIO; + + ret = fn(vdev, index, start, count, automasked); + + symbol_put(vfio_external_set_automasked); + return ret; +} + static bool kvm_vfio_group_is_coherent(struct vfio_group *vfio_group) { long (*fn)(struct vfio_group *, unsigned long); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/