vfio_kvm_device_add/del_fd() are low level routines. Move them with the other helpers.
Reviewed-by: Zhenzhong Duan <zhenzhong.d...@intel.com> Reviewed-by: John Levon <john.le...@nutanix.com> Link: https://lore.kernel.org/qemu-devel/20250318095415.670319-18-...@redhat.com Link: https://lore.kernel.org/qemu-devel/20250326075122.1299361-19-...@redhat.com Signed-off-by: Cédric Le Goater <c...@redhat.com> --- hw/vfio/vfio-helpers.h | 3 ++ include/hw/vfio/vfio-common.h | 3 -- hw/vfio/common.c | 58 ---------------------------------- hw/vfio/helpers.c | 59 +++++++++++++++++++++++++++++++++++ hw/vfio/iommufd.c | 1 + hw/vfio/meson.build | 2 +- 6 files changed, 64 insertions(+), 62 deletions(-) diff --git a/hw/vfio/vfio-helpers.h b/hw/vfio/vfio-helpers.h index 9af43878b8b90c0247221543423a5aca8be2eef5..5d91e33d27be1bdd8eb9b3ce74c39a4ac1991adc 100644 --- a/hw/vfio/vfio-helpers.h +++ b/hw/vfio/vfio-helpers.h @@ -26,4 +26,7 @@ bool vfio_get_info_dma_avail(struct vfio_iommu_type1_info *info, int vfio_bitmap_alloc(VFIOBitmap *vbmap, hwaddr size); +int vfio_kvm_device_add_fd(int fd, Error **errp); +int vfio_kvm_device_del_fd(int fd, Error **errp); + #endif /* HW_VFIO_VFIO_HELPERS_H */ diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h index f5ec9fb5ba4616ece30e43ce38b3a4e46e2c9c3c..5cf7ae617371a2f8a09e52b1b438fa23703c6dd8 100644 --- a/include/hw/vfio/vfio-common.h +++ b/include/hw/vfio/vfio-common.h @@ -130,9 +130,6 @@ bool vfio_attach_device(char *name, VFIODevice *vbasedev, void vfio_detach_device(VFIODevice *vbasedev); VFIODevice *vfio_get_vfio_device(Object *obj); -int vfio_kvm_device_add_fd(int fd, Error **errp); -int vfio_kvm_device_del_fd(int fd, Error **errp); - bool vfio_cpr_register_container(VFIOContainerBase *bcontainer, Error **errp); void vfio_cpr_unregister_container(VFIOContainerBase *bcontainer); diff --git a/hw/vfio/common.c b/hw/vfio/common.c index 4b3f26d4c0ced17c93f6a1fab02c85181d55f6be..cbe69fb3225f7d30fbded348acea597b26f98651 100644 --- a/hw/vfio/common.c +++ b/hw/vfio/common.c @@ -1334,64 +1334,6 @@ void vfio_reset_handler(void *opaque) } } -int vfio_kvm_device_add_fd(int fd, Error **errp) -{ -#ifdef CONFIG_KVM - struct kvm_device_attr attr = { - .group = KVM_DEV_VFIO_FILE, - .attr = KVM_DEV_VFIO_FILE_ADD, - .addr = (uint64_t)(unsigned long)&fd, - }; - - if (!kvm_enabled()) { - return 0; - } - - if (vfio_kvm_device_fd < 0) { - struct kvm_create_device cd = { - .type = KVM_DEV_TYPE_VFIO, - }; - - if (kvm_vm_ioctl(kvm_state, KVM_CREATE_DEVICE, &cd)) { - error_setg_errno(errp, errno, "Failed to create KVM VFIO device"); - return -errno; - } - - vfio_kvm_device_fd = cd.fd; - } - - if (ioctl(vfio_kvm_device_fd, KVM_SET_DEVICE_ATTR, &attr)) { - error_setg_errno(errp, errno, "Failed to add fd %d to KVM VFIO device", - fd); - return -errno; - } -#endif - return 0; -} - -int vfio_kvm_device_del_fd(int fd, Error **errp) -{ -#ifdef CONFIG_KVM - struct kvm_device_attr attr = { - .group = KVM_DEV_VFIO_FILE, - .attr = KVM_DEV_VFIO_FILE_DEL, - .addr = (uint64_t)(unsigned long)&fd, - }; - - if (vfio_kvm_device_fd < 0) { - error_setg(errp, "KVM VFIO device isn't created yet"); - return -EINVAL; - } - - if (ioctl(vfio_kvm_device_fd, KVM_SET_DEVICE_ATTR, &attr)) { - error_setg_errno(errp, errno, - "Failed to remove fd %d from KVM VFIO device", fd); - return -errno; - } -#endif - return 0; -} - struct vfio_device_info *vfio_get_device_info(int fd) { struct vfio_device_info *info; diff --git a/hw/vfio/helpers.c b/hw/vfio/helpers.c index 1a584ba5f007995a16d2364faeb72cb2b22de4e9..e6b75baa805241b4df28769338b15a6fe9b99501 100644 --- a/hw/vfio/helpers.c +++ b/hw/vfio/helpers.c @@ -22,6 +22,7 @@ #include "qemu/osdep.h" #include <sys/ioctl.h> +#include "system/kvm.h" #include "hw/vfio/vfio-common.h" #include "hw/vfio/pci.h" #include "hw/hw.h" @@ -253,6 +254,64 @@ bool vfio_get_info_dma_avail(struct vfio_iommu_type1_info *info, return true; } +int vfio_kvm_device_add_fd(int fd, Error **errp) +{ +#ifdef CONFIG_KVM + struct kvm_device_attr attr = { + .group = KVM_DEV_VFIO_FILE, + .attr = KVM_DEV_VFIO_FILE_ADD, + .addr = (uint64_t)(unsigned long)&fd, + }; + + if (!kvm_enabled()) { + return 0; + } + + if (vfio_kvm_device_fd < 0) { + struct kvm_create_device cd = { + .type = KVM_DEV_TYPE_VFIO, + }; + + if (kvm_vm_ioctl(kvm_state, KVM_CREATE_DEVICE, &cd)) { + error_setg_errno(errp, errno, "Failed to create KVM VFIO device"); + return -errno; + } + + vfio_kvm_device_fd = cd.fd; + } + + if (ioctl(vfio_kvm_device_fd, KVM_SET_DEVICE_ATTR, &attr)) { + error_setg_errno(errp, errno, "Failed to add fd %d to KVM VFIO device", + fd); + return -errno; + } +#endif + return 0; +} + +int vfio_kvm_device_del_fd(int fd, Error **errp) +{ +#ifdef CONFIG_KVM + struct kvm_device_attr attr = { + .group = KVM_DEV_VFIO_FILE, + .attr = KVM_DEV_VFIO_FILE_DEL, + .addr = (uint64_t)(unsigned long)&fd, + }; + + if (vfio_kvm_device_fd < 0) { + error_setg(errp, "KVM VFIO device isn't created yet"); + return -EINVAL; + } + + if (ioctl(vfio_kvm_device_fd, KVM_SET_DEVICE_ATTR, &attr)) { + error_setg_errno(errp, errno, + "Failed to remove fd %d from KVM VFIO device", fd); + return -errno; + } +#endif + return 0; +} + int vfio_get_dev_region_info(VFIODevice *vbasedev, uint32_t type, uint32_t subtype, struct vfio_region_info **info) { diff --git a/hw/vfio/iommufd.c b/hw/vfio/iommufd.c index 2ec15bc2692e2eb90299e5a1c09ab6b738c69cf0..85b5a8146ac401af6be8109c28ea4c7a39e84521 100644 --- a/hw/vfio/iommufd.c +++ b/hw/vfio/iommufd.c @@ -26,6 +26,7 @@ #include "qemu/chardev_open.h" #include "pci.h" #include "vfio-iommufd.h" +#include "vfio-helpers.h" #define TYPE_HOST_IOMMU_DEVICE_IOMMUFD_VFIO \ TYPE_HOST_IOMMU_DEVICE_IOMMUFD "-vfio" diff --git a/hw/vfio/meson.build b/hw/vfio/meson.build index 07010c7c9e01a39ae3449c54d2027a2cdd0a7a4d..21795b3d19e5db0c93993c0cb4a951a70d260f10 100644 --- a/hw/vfio/meson.build +++ b/hw/vfio/meson.build @@ -2,6 +2,7 @@ vfio_ss = ss.source_set() vfio_ss.add(files( 'common.c', 'container.c', + 'helpers.c', )) vfio_ss.add(when: 'CONFIG_PSERIES', if_true: files('spapr.c')) vfio_ss.add(when: 'CONFIG_VFIO_PCI', if_true: files( @@ -18,7 +19,6 @@ specific_ss.add_all(when: 'CONFIG_VFIO', if_true: vfio_ss) system_ss.add(when: 'CONFIG_VFIO_XGMAC', if_true: files('calxeda-xgmac.c')) system_ss.add(when: 'CONFIG_VFIO_AMD_XGBE', if_true: files('amd-xgbe.c')) system_ss.add(when: 'CONFIG_VFIO', if_true: files( - 'helpers.c', 'container-base.c', 'migration.c', 'migration-multifd.c', -- 2.49.0
