Message ID | 1394603550-11556-6-git-send-email-aik@ozlabs.ru |
---|---|
State | New |
Headers | show |
On Wed, 2014-03-12 at 16:52 +1100, Alexey Kardashevskiy wrote: > From: David Gibson <david@gibson.dropbear.id.au> > > The only model so far supported for VFIO passthrough devices is the model > usually used on x86, where all of the guest's RAM is mapped into the > (host) IOMMU and there is no IOMMU visible in the guest. > > This patch begins to relax this model, introducing the notion of a > VFIOAddressSpace. This represents a logical DMA address space which will > be visible to one or more VFIO devices by appropriate mapping in the (host) > IOMMU. Thus the currently global list of containers becomes local to > a VFIOAddressSpace, and we verify that we don't attempt to add a VFIO > group to multiple address spaces. > > For now, only one VFIOAddressSpace is created and used, corresponding to > main system memory, that will change in future patches. > > Signed-off-by: David Gibson <david@gibson.dropbear.id.au> > Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> > > --- > Changes: > v5: > * vfio_get_group() now receives AddressSpace* > > v4: > * removed redundant checks and asserts > * fixed some return error codes > --- > hw/misc/vfio.c | 53 ++++++++++++++++++++++++++++++++++++++++------------- > 1 file changed, 40 insertions(+), 13 deletions(-) > > diff --git a/hw/misc/vfio.c b/hw/misc/vfio.c > index 6a04c2a..c8236c3 100644 > --- a/hw/misc/vfio.c > +++ b/hw/misc/vfio.c > @@ -133,6 +133,22 @@ enum { > VFIO_INT_MSIX = 3, > }; > > +typedef struct VFIOAddressSpace { > + AddressSpace *as; > + QLIST_HEAD(, VFIOContainer) containers; > + QLIST_ENTRY(VFIOAddressSpace) list; > +} VFIOAddressSpace; > + > +QLIST_HEAD(, VFIOAddressSpace) vfio_address_spaces; Why isn't this static and initialized with QLIST_HEAD_INITIALIZER like the qlist it replaces? > + > +static VFIOAddressSpace vfio_address_space_memory; > + > +static void vfio_address_space_init(VFIOAddressSpace *space, AddressSpace *as) > +{ > + space->as = as; > + QLIST_INIT(&space->containers); > +} > + > struct VFIOGroup; > > typedef struct VFIOType1 { > @@ -142,6 +158,7 @@ typedef struct VFIOType1 { > } VFIOType1; > > typedef struct VFIOContainer { > + VFIOAddressSpace *space; > int fd; /* /dev/vfio/vfio, empowered by the attached groups */ > struct { > /* enable abstraction to support various iommu backends */ > @@ -234,9 +251,6 @@ static const VFIORomBlacklistEntry romblacklist[] = { > > #define MSIX_CAP_LENGTH 12 > > -static QLIST_HEAD(, VFIOContainer) > - container_list = QLIST_HEAD_INITIALIZER(container_list); > - > static QLIST_HEAD(, VFIOGroup) > group_list = QLIST_HEAD_INITIALIZER(group_list); > > @@ -3280,16 +3294,15 @@ static void vfio_kvm_device_del_group(VFIOGroup *group) > #endif > } > > -static int vfio_connect_container(VFIOGroup *group) > +static int vfio_connect_container(VFIOGroup *group, AddressSpace *as) > { > VFIOContainer *container; > int ret, fd; > + VFIOAddressSpace *space; > > - if (group->container) { > - return 0; > - } > + space = &vfio_address_space_memory; > > - QLIST_FOREACH(container, &container_list, next) { > + QLIST_FOREACH(container, &space->containers, next) { > if (!ioctl(group->fd, VFIO_GROUP_SET_CONTAINER, &container->fd)) { > group->container = container; > QLIST_INSERT_HEAD(&container->group_list, group, container_next); > @@ -3312,6 +3325,7 @@ static int vfio_connect_container(VFIOGroup *group) > } > > container = g_malloc0(sizeof(*container)); > + container->space = space; > container->fd = fd; > > if (ioctl(fd, VFIO_CHECK_EXTENSION, VFIO_TYPE1_IOMMU)) { > @@ -3349,7 +3363,7 @@ static int vfio_connect_container(VFIOGroup *group) > } > > QLIST_INIT(&container->group_list); > - QLIST_INSERT_HEAD(&container_list, container, next); > + QLIST_INSERT_HEAD(&space->containers, container, next); > > group->container = container; > QLIST_INSERT_HEAD(&container->group_list, group, container_next); > @@ -3392,7 +3406,7 @@ static void vfio_disconnect_container(VFIOGroup *group) > } > } > > -static VFIOGroup *vfio_get_group(int groupid) > +static VFIOGroup *vfio_get_group(int groupid, AddressSpace *as) > { > VFIOGroup *group; > char path[32]; > @@ -3400,7 +3414,14 @@ static VFIOGroup *vfio_get_group(int groupid) > > QLIST_FOREACH(group, &group_list, next) { > if (group->groupid == groupid) { > - return group; > + /* Found it. Now is it already in the right context? */ > + if (group->container->space->as == as) { > + return group; > + } else { > + error_report("vfio: group %d used in multiple address spaces", > + group->groupid); > + return NULL; > + } > } > } > > @@ -3428,7 +3449,7 @@ static VFIOGroup *vfio_get_group(int groupid) > group->groupid = groupid; > QLIST_INIT(&group->device_list); > > - if (vfio_connect_container(group)) { > + if (vfio_connect_container(group, as)) { > error_report("vfio: failed to setup container for group %d", groupid); > goto close_fd_exit; > } > @@ -3780,7 +3801,12 @@ static int vfio_initfn(PCIDevice *pdev) > DPRINTF("%s(%04x:%02x:%02x.%x) group %d\n", __func__, vdev->host.domain, > vdev->host.bus, vdev->host.slot, vdev->host.function, groupid); > > - group = vfio_get_group(groupid); > + if (pci_device_iommu_address_space(pdev) != &address_space_memory) { > + error_report("vfio: DMA address space must be system memory"); > + return -EINVAL; > + } > + > + group = vfio_get_group(groupid, &address_space_memory); > if (!group) { > error_report("vfio: failed to get group %d", groupid); > return -ENOENT; > @@ -3994,6 +4020,7 @@ static const TypeInfo vfio_pci_dev_info = { > > static void register_vfio_pci_dev_type(void) > { > + vfio_address_space_init(&vfio_address_space_memory, &address_space_memory); > type_register_static(&vfio_pci_dev_info); > } >
On 03/20/2014 06:57 AM, Alex Williamson wrote: > On Wed, 2014-03-12 at 16:52 +1100, Alexey Kardashevskiy wrote: >> From: David Gibson <david@gibson.dropbear.id.au> >> >> The only model so far supported for VFIO passthrough devices is the model >> usually used on x86, where all of the guest's RAM is mapped into the >> (host) IOMMU and there is no IOMMU visible in the guest. >> >> This patch begins to relax this model, introducing the notion of a >> VFIOAddressSpace. This represents a logical DMA address space which will >> be visible to one or more VFIO devices by appropriate mapping in the (host) >> IOMMU. Thus the currently global list of containers becomes local to >> a VFIOAddressSpace, and we verify that we don't attempt to add a VFIO >> group to multiple address spaces. >> >> For now, only one VFIOAddressSpace is created and used, corresponding to >> main system memory, that will change in future patches. >> >> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> >> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> >> >> --- >> Changes: >> v5: >> * vfio_get_group() now receives AddressSpace* >> >> v4: >> * removed redundant checks and asserts >> * fixed some return error codes >> --- >> hw/misc/vfio.c | 53 ++++++++++++++++++++++++++++++++++++++++------------- >> 1 file changed, 40 insertions(+), 13 deletions(-) >> >> diff --git a/hw/misc/vfio.c b/hw/misc/vfio.c >> index 6a04c2a..c8236c3 100644 >> --- a/hw/misc/vfio.c >> +++ b/hw/misc/vfio.c >> @@ -133,6 +133,22 @@ enum { >> VFIO_INT_MSIX = 3, >> }; >> >> +typedef struct VFIOAddressSpace { >> + AddressSpace *as; >> + QLIST_HEAD(, VFIOContainer) containers; >> + QLIST_ENTRY(VFIOAddressSpace) list; >> +} VFIOAddressSpace; >> + >> +QLIST_HEAD(, VFIOAddressSpace) vfio_address_spaces; > > Why isn't this static and initialized with QLIST_HEAD_INITIALIZER like > the qlist it replaces? I'll use QLIST_HEAD_INITIALIZER, ok. It is not static because otherwise it does not compile - the actual use of vfio_address_spaces happens in the next patches. Should I make it static and move to the next patch? Thanks. >> + >> +static VFIOAddressSpace vfio_address_space_memory; >> + >> +static void vfio_address_space_init(VFIOAddressSpace *space, AddressSpace *as) >> +{ >> + space->as = as; >> + QLIST_INIT(&space->containers); >> +} >> + >> struct VFIOGroup; >> >> typedef struct VFIOType1 { >> @@ -142,6 +158,7 @@ typedef struct VFIOType1 { >> } VFIOType1; >> >> typedef struct VFIOContainer { >> + VFIOAddressSpace *space; >> int fd; /* /dev/vfio/vfio, empowered by the attached groups */ >> struct { >> /* enable abstraction to support various iommu backends */ >> @@ -234,9 +251,6 @@ static const VFIORomBlacklistEntry romblacklist[] = { >> >> #define MSIX_CAP_LENGTH 12 >> >> -static QLIST_HEAD(, VFIOContainer) >> - container_list = QLIST_HEAD_INITIALIZER(container_list); >> - >> static QLIST_HEAD(, VFIOGroup) >> group_list = QLIST_HEAD_INITIALIZER(group_list); >> >> @@ -3280,16 +3294,15 @@ static void vfio_kvm_device_del_group(VFIOGroup *group) >> #endif >> } >> >> -static int vfio_connect_container(VFIOGroup *group) >> +static int vfio_connect_container(VFIOGroup *group, AddressSpace *as) >> { >> VFIOContainer *container; >> int ret, fd; >> + VFIOAddressSpace *space; >> >> - if (group->container) { >> - return 0; >> - } >> + space = &vfio_address_space_memory; >> >> - QLIST_FOREACH(container, &container_list, next) { >> + QLIST_FOREACH(container, &space->containers, next) { >> if (!ioctl(group->fd, VFIO_GROUP_SET_CONTAINER, &container->fd)) { >> group->container = container; >> QLIST_INSERT_HEAD(&container->group_list, group, container_next); >> @@ -3312,6 +3325,7 @@ static int vfio_connect_container(VFIOGroup *group) >> } >> >> container = g_malloc0(sizeof(*container)); >> + container->space = space; >> container->fd = fd; >> >> if (ioctl(fd, VFIO_CHECK_EXTENSION, VFIO_TYPE1_IOMMU)) { >> @@ -3349,7 +3363,7 @@ static int vfio_connect_container(VFIOGroup *group) >> } >> >> QLIST_INIT(&container->group_list); >> - QLIST_INSERT_HEAD(&container_list, container, next); >> + QLIST_INSERT_HEAD(&space->containers, container, next); >> >> group->container = container; >> QLIST_INSERT_HEAD(&container->group_list, group, container_next); >> @@ -3392,7 +3406,7 @@ static void vfio_disconnect_container(VFIOGroup *group) >> } >> } >> >> -static VFIOGroup *vfio_get_group(int groupid) >> +static VFIOGroup *vfio_get_group(int groupid, AddressSpace *as) >> { >> VFIOGroup *group; >> char path[32]; >> @@ -3400,7 +3414,14 @@ static VFIOGroup *vfio_get_group(int groupid) >> >> QLIST_FOREACH(group, &group_list, next) { >> if (group->groupid == groupid) { >> - return group; >> + /* Found it. Now is it already in the right context? */ >> + if (group->container->space->as == as) { >> + return group; >> + } else { >> + error_report("vfio: group %d used in multiple address spaces", >> + group->groupid); >> + return NULL; >> + } >> } >> } >> >> @@ -3428,7 +3449,7 @@ static VFIOGroup *vfio_get_group(int groupid) >> group->groupid = groupid; >> QLIST_INIT(&group->device_list); >> >> - if (vfio_connect_container(group)) { >> + if (vfio_connect_container(group, as)) { >> error_report("vfio: failed to setup container for group %d", groupid); >> goto close_fd_exit; >> } >> @@ -3780,7 +3801,12 @@ static int vfio_initfn(PCIDevice *pdev) >> DPRINTF("%s(%04x:%02x:%02x.%x) group %d\n", __func__, vdev->host.domain, >> vdev->host.bus, vdev->host.slot, vdev->host.function, groupid); >> >> - group = vfio_get_group(groupid); >> + if (pci_device_iommu_address_space(pdev) != &address_space_memory) { >> + error_report("vfio: DMA address space must be system memory"); >> + return -EINVAL; >> + } >> + >> + group = vfio_get_group(groupid, &address_space_memory); >> if (!group) { >> error_report("vfio: failed to get group %d", groupid); >> return -ENOENT; >> @@ -3994,6 +4020,7 @@ static const TypeInfo vfio_pci_dev_info = { >> >> static void register_vfio_pci_dev_type(void) >> { >> + vfio_address_space_init(&vfio_address_space_memory, &address_space_memory); >> type_register_static(&vfio_pci_dev_info); >> } >> > > >
On Fri, 2014-03-28 at 14:42 +1100, Alexey Kardashevskiy wrote: > On 03/20/2014 06:57 AM, Alex Williamson wrote: > > On Wed, 2014-03-12 at 16:52 +1100, Alexey Kardashevskiy wrote: > >> From: David Gibson <david@gibson.dropbear.id.au> > >> > >> The only model so far supported for VFIO passthrough devices is the model > >> usually used on x86, where all of the guest's RAM is mapped into the > >> (host) IOMMU and there is no IOMMU visible in the guest. > >> > >> This patch begins to relax this model, introducing the notion of a > >> VFIOAddressSpace. This represents a logical DMA address space which will > >> be visible to one or more VFIO devices by appropriate mapping in the (host) > >> IOMMU. Thus the currently global list of containers becomes local to > >> a VFIOAddressSpace, and we verify that we don't attempt to add a VFIO > >> group to multiple address spaces. > >> > >> For now, only one VFIOAddressSpace is created and used, corresponding to > >> main system memory, that will change in future patches. > >> > >> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> > >> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> > >> > >> --- > >> Changes: > >> v5: > >> * vfio_get_group() now receives AddressSpace* > >> > >> v4: > >> * removed redundant checks and asserts > >> * fixed some return error codes > >> --- > >> hw/misc/vfio.c | 53 ++++++++++++++++++++++++++++++++++++++++------------- > >> 1 file changed, 40 insertions(+), 13 deletions(-) > >> > >> diff --git a/hw/misc/vfio.c b/hw/misc/vfio.c > >> index 6a04c2a..c8236c3 100644 > >> --- a/hw/misc/vfio.c > >> +++ b/hw/misc/vfio.c > >> @@ -133,6 +133,22 @@ enum { > >> VFIO_INT_MSIX = 3, > >> }; > >> > >> +typedef struct VFIOAddressSpace { > >> + AddressSpace *as; > >> + QLIST_HEAD(, VFIOContainer) containers; > >> + QLIST_ENTRY(VFIOAddressSpace) list; > >> +} VFIOAddressSpace; > >> + > >> +QLIST_HEAD(, VFIOAddressSpace) vfio_address_spaces; > > > > Why isn't this static and initialized with QLIST_HEAD_INITIALIZER like > > the qlist it replaces? > > > I'll use QLIST_HEAD_INITIALIZER, ok. > > > It is not static because otherwise it does not compile - the actual use of > vfio_address_spaces happens in the next patches. Should I make it static > and move to the next patch? Thanks. So you're working around an unused variable compile failure by making it non-static? Why not just move declaring it until the next patch? Thanks, Alex > >> + > >> +static VFIOAddressSpace vfio_address_space_memory; > >> + > >> +static void vfio_address_space_init(VFIOAddressSpace *space, AddressSpace *as) > >> +{ > >> + space->as = as; > >> + QLIST_INIT(&space->containers); > >> +} > >> + > >> struct VFIOGroup; > >> > >> typedef struct VFIOType1 { > >> @@ -142,6 +158,7 @@ typedef struct VFIOType1 { > >> } VFIOType1; > >> > >> typedef struct VFIOContainer { > >> + VFIOAddressSpace *space; > >> int fd; /* /dev/vfio/vfio, empowered by the attached groups */ > >> struct { > >> /* enable abstraction to support various iommu backends */ > >> @@ -234,9 +251,6 @@ static const VFIORomBlacklistEntry romblacklist[] = { > >> > >> #define MSIX_CAP_LENGTH 12 > >> > >> -static QLIST_HEAD(, VFIOContainer) > >> - container_list = QLIST_HEAD_INITIALIZER(container_list); > >> - > >> static QLIST_HEAD(, VFIOGroup) > >> group_list = QLIST_HEAD_INITIALIZER(group_list); > >> > >> @@ -3280,16 +3294,15 @@ static void vfio_kvm_device_del_group(VFIOGroup *group) > >> #endif > >> } > >> > >> -static int vfio_connect_container(VFIOGroup *group) > >> +static int vfio_connect_container(VFIOGroup *group, AddressSpace *as) > >> { > >> VFIOContainer *container; > >> int ret, fd; > >> + VFIOAddressSpace *space; > >> > >> - if (group->container) { > >> - return 0; > >> - } > >> + space = &vfio_address_space_memory; > >> > >> - QLIST_FOREACH(container, &container_list, next) { > >> + QLIST_FOREACH(container, &space->containers, next) { > >> if (!ioctl(group->fd, VFIO_GROUP_SET_CONTAINER, &container->fd)) { > >> group->container = container; > >> QLIST_INSERT_HEAD(&container->group_list, group, container_next); > >> @@ -3312,6 +3325,7 @@ static int vfio_connect_container(VFIOGroup *group) > >> } > >> > >> container = g_malloc0(sizeof(*container)); > >> + container->space = space; > >> container->fd = fd; > >> > >> if (ioctl(fd, VFIO_CHECK_EXTENSION, VFIO_TYPE1_IOMMU)) { > >> @@ -3349,7 +3363,7 @@ static int vfio_connect_container(VFIOGroup *group) > >> } > >> > >> QLIST_INIT(&container->group_list); > >> - QLIST_INSERT_HEAD(&container_list, container, next); > >> + QLIST_INSERT_HEAD(&space->containers, container, next); > >> > >> group->container = container; > >> QLIST_INSERT_HEAD(&container->group_list, group, container_next); > >> @@ -3392,7 +3406,7 @@ static void vfio_disconnect_container(VFIOGroup *group) > >> } > >> } > >> > >> -static VFIOGroup *vfio_get_group(int groupid) > >> +static VFIOGroup *vfio_get_group(int groupid, AddressSpace *as) > >> { > >> VFIOGroup *group; > >> char path[32]; > >> @@ -3400,7 +3414,14 @@ static VFIOGroup *vfio_get_group(int groupid) > >> > >> QLIST_FOREACH(group, &group_list, next) { > >> if (group->groupid == groupid) { > >> - return group; > >> + /* Found it. Now is it already in the right context? */ > >> + if (group->container->space->as == as) { > >> + return group; > >> + } else { > >> + error_report("vfio: group %d used in multiple address spaces", > >> + group->groupid); > >> + return NULL; > >> + } > >> } > >> } > >> > >> @@ -3428,7 +3449,7 @@ static VFIOGroup *vfio_get_group(int groupid) > >> group->groupid = groupid; > >> QLIST_INIT(&group->device_list); > >> > >> - if (vfio_connect_container(group)) { > >> + if (vfio_connect_container(group, as)) { > >> error_report("vfio: failed to setup container for group %d", groupid); > >> goto close_fd_exit; > >> } > >> @@ -3780,7 +3801,12 @@ static int vfio_initfn(PCIDevice *pdev) > >> DPRINTF("%s(%04x:%02x:%02x.%x) group %d\n", __func__, vdev->host.domain, > >> vdev->host.bus, vdev->host.slot, vdev->host.function, groupid); > >> > >> - group = vfio_get_group(groupid); > >> + if (pci_device_iommu_address_space(pdev) != &address_space_memory) { > >> + error_report("vfio: DMA address space must be system memory"); > >> + return -EINVAL; > >> + } > >> + > >> + group = vfio_get_group(groupid, &address_space_memory); > >> if (!group) { > >> error_report("vfio: failed to get group %d", groupid); > >> return -ENOENT; > >> @@ -3994,6 +4020,7 @@ static const TypeInfo vfio_pci_dev_info = { > >> > >> static void register_vfio_pci_dev_type(void) > >> { > >> + vfio_address_space_init(&vfio_address_space_memory, &address_space_memory); > >> type_register_static(&vfio_pci_dev_info); > >> } > >> > > > > > > > >
diff --git a/hw/misc/vfio.c b/hw/misc/vfio.c index 6a04c2a..c8236c3 100644 --- a/hw/misc/vfio.c +++ b/hw/misc/vfio.c @@ -133,6 +133,22 @@ enum { VFIO_INT_MSIX = 3, }; +typedef struct VFIOAddressSpace { + AddressSpace *as; + QLIST_HEAD(, VFIOContainer) containers; + QLIST_ENTRY(VFIOAddressSpace) list; +} VFIOAddressSpace; + +QLIST_HEAD(, VFIOAddressSpace) vfio_address_spaces; + +static VFIOAddressSpace vfio_address_space_memory; + +static void vfio_address_space_init(VFIOAddressSpace *space, AddressSpace *as) +{ + space->as = as; + QLIST_INIT(&space->containers); +} + struct VFIOGroup; typedef struct VFIOType1 { @@ -142,6 +158,7 @@ typedef struct VFIOType1 { } VFIOType1; typedef struct VFIOContainer { + VFIOAddressSpace *space; int fd; /* /dev/vfio/vfio, empowered by the attached groups */ struct { /* enable abstraction to support various iommu backends */ @@ -234,9 +251,6 @@ static const VFIORomBlacklistEntry romblacklist[] = { #define MSIX_CAP_LENGTH 12 -static QLIST_HEAD(, VFIOContainer) - container_list = QLIST_HEAD_INITIALIZER(container_list); - static QLIST_HEAD(, VFIOGroup) group_list = QLIST_HEAD_INITIALIZER(group_list); @@ -3280,16 +3294,15 @@ static void vfio_kvm_device_del_group(VFIOGroup *group) #endif } -static int vfio_connect_container(VFIOGroup *group) +static int vfio_connect_container(VFIOGroup *group, AddressSpace *as) { VFIOContainer *container; int ret, fd; + VFIOAddressSpace *space; - if (group->container) { - return 0; - } + space = &vfio_address_space_memory; - QLIST_FOREACH(container, &container_list, next) { + QLIST_FOREACH(container, &space->containers, next) { if (!ioctl(group->fd, VFIO_GROUP_SET_CONTAINER, &container->fd)) { group->container = container; QLIST_INSERT_HEAD(&container->group_list, group, container_next); @@ -3312,6 +3325,7 @@ static int vfio_connect_container(VFIOGroup *group) } container = g_malloc0(sizeof(*container)); + container->space = space; container->fd = fd; if (ioctl(fd, VFIO_CHECK_EXTENSION, VFIO_TYPE1_IOMMU)) { @@ -3349,7 +3363,7 @@ static int vfio_connect_container(VFIOGroup *group) } QLIST_INIT(&container->group_list); - QLIST_INSERT_HEAD(&container_list, container, next); + QLIST_INSERT_HEAD(&space->containers, container, next); group->container = container; QLIST_INSERT_HEAD(&container->group_list, group, container_next); @@ -3392,7 +3406,7 @@ static void vfio_disconnect_container(VFIOGroup *group) } } -static VFIOGroup *vfio_get_group(int groupid) +static VFIOGroup *vfio_get_group(int groupid, AddressSpace *as) { VFIOGroup *group; char path[32]; @@ -3400,7 +3414,14 @@ static VFIOGroup *vfio_get_group(int groupid) QLIST_FOREACH(group, &group_list, next) { if (group->groupid == groupid) { - return group; + /* Found it. Now is it already in the right context? */ + if (group->container->space->as == as) { + return group; + } else { + error_report("vfio: group %d used in multiple address spaces", + group->groupid); + return NULL; + } } } @@ -3428,7 +3449,7 @@ static VFIOGroup *vfio_get_group(int groupid) group->groupid = groupid; QLIST_INIT(&group->device_list); - if (vfio_connect_container(group)) { + if (vfio_connect_container(group, as)) { error_report("vfio: failed to setup container for group %d", groupid); goto close_fd_exit; } @@ -3780,7 +3801,12 @@ static int vfio_initfn(PCIDevice *pdev) DPRINTF("%s(%04x:%02x:%02x.%x) group %d\n", __func__, vdev->host.domain, vdev->host.bus, vdev->host.slot, vdev->host.function, groupid); - group = vfio_get_group(groupid); + if (pci_device_iommu_address_space(pdev) != &address_space_memory) { + error_report("vfio: DMA address space must be system memory"); + return -EINVAL; + } + + group = vfio_get_group(groupid, &address_space_memory); if (!group) { error_report("vfio: failed to get group %d", groupid); return -ENOENT; @@ -3994,6 +4020,7 @@ static const TypeInfo vfio_pci_dev_info = { static void register_vfio_pci_dev_type(void) { + vfio_address_space_init(&vfio_address_space_memory, &address_space_memory); type_register_static(&vfio_pci_dev_info); }