@@ -35,12 +35,7 @@ static void spapr_phb_vfio_finish_realize(sPAPRPHBState *sphb, Error **errp)
sPAPRTCETable *tcet;
uint32_t liobn = svphb->phb.dma_liobn;
- if (svphb->iommugroupid == -1) {
- error_setg(errp, "Wrong IOMMU group ID %d", svphb->iommugroupid);
- return;
- }
-
- ret = vfio_container_ioctl(&svphb->phb.iommu_as, svphb->iommugroupid,
+ ret = vfio_container_ioctl(&svphb->phb.iommu_as,
VFIO_CHECK_EXTENSION,
(void *) VFIO_SPAPR_TCE_IOMMU);
if (ret != 1) {
@@ -49,7 +44,7 @@ static void spapr_phb_vfio_finish_realize(sPAPRPHBState *sphb, Error **errp)
return;
}
- ret = vfio_container_ioctl(&svphb->phb.iommu_as, svphb->iommugroupid,
+ ret = vfio_container_ioctl(&sphb->iommu_as,
VFIO_IOMMU_SPAPR_TCE_GET_INFO, &info);
if (ret) {
error_setg_errno(errp, -ret,
@@ -116,7 +111,7 @@ static int spapr_phb_vfio_eeh_set_option(sPAPRPHBState *sphb,
return RTAS_OUT_PARAM_ERROR;
}
- ret = vfio_container_ioctl(&svphb->phb.iommu_as, svphb->iommugroupid,
+ ret = vfio_container_ioctl(&svphb->phb.iommu_as,
VFIO_EEH_PE_OP, &op);
if (ret < 0) {
return RTAS_OUT_HW_ERROR;
@@ -132,7 +127,7 @@ static int spapr_phb_vfio_eeh_get_state(sPAPRPHBState *sphb, int *state)
int ret;
op.op = VFIO_EEH_PE_GET_STATE;
- ret = vfio_container_ioctl(&svphb->phb.iommu_as, svphb->iommugroupid,
+ ret = vfio_container_ioctl(&svphb->phb.iommu_as,
VFIO_EEH_PE_OP, &op);
if (ret < 0) {
return RTAS_OUT_PARAM_ERROR;
@@ -162,7 +157,7 @@ static int spapr_phb_vfio_eeh_reset(sPAPRPHBState *sphb, int option)
return RTAS_OUT_PARAM_ERROR;
}
- ret = vfio_container_ioctl(&svphb->phb.iommu_as, svphb->iommugroupid,
+ ret = vfio_container_ioctl(&svphb->phb.iommu_as,
VFIO_EEH_PE_OP, &op);
if (ret < 0) {
return RTAS_OUT_HW_ERROR;
@@ -178,7 +173,7 @@ static int spapr_phb_vfio_eeh_configure(sPAPRPHBState *sphb)
int ret;
op.op = VFIO_EEH_PE_CONFIGURE;
- ret = vfio_container_ioctl(&svphb->phb.iommu_as, svphb->iommugroupid,
+ ret = vfio_container_ioctl(&svphb->phb.iommu_as,
VFIO_EEH_PE_OP, &op);
if (ret < 0) {
return RTAS_OUT_PARAM_ERROR;
@@ -793,34 +793,26 @@ void vfio_put_base_device(VFIODevice *vbasedev)
close(vbasedev->fd);
}
-static int vfio_container_do_ioctl(AddressSpace *as, int32_t groupid,
+static int vfio_container_do_ioctl(AddressSpace *as,
int req, void *param)
{
- VFIOGroup *group;
VFIOContainer *container;
int ret = -1;
+ VFIOAddressSpace *space = vfio_get_address_space(as);
- group = vfio_get_group(groupid, as);
- if (!group) {
- error_report("vfio: group %d not registered", groupid);
- return ret;
- }
-
- container = group->container;
- if (group->container) {
+ QLIST_FOREACH(container, &space->containers, next) {
ret = ioctl(container->fd, req, param);
if (ret < 0) {
error_report("vfio: failed to ioctl %d to container: ret=%d, %s",
_IOC_NR(req) - VFIO_BASE, ret, strerror(errno));
+ return -errno;
}
}
- vfio_put_group(group);
-
return ret;
}
-int vfio_container_ioctl(AddressSpace *as, int32_t groupid,
+int vfio_container_ioctl(AddressSpace *as,
int req, void *param)
{
/* We allow only certain ioctls to the container */
@@ -835,5 +827,5 @@ int vfio_container_ioctl(AddressSpace *as, int32_t groupid,
return -1;
}
- return vfio_container_do_ioctl(as, groupid, req, param);
+ return vfio_container_do_ioctl(as, req, param);
}
@@ -3,7 +3,7 @@
#include "qemu/typedefs.h"
-extern int vfio_container_ioctl(AddressSpace *as, int32_t groupid,
+extern int vfio_container_ioctl(AddressSpace *as,
int req, void *param);
#endif
This enables multiple IOMMU groups in one VFIO container which means that multiple devices from different groups can share the same IOMMU table (or tables if DDW). This removes a group id from vfio_container_ioctl(). The kernel support is required for this; if the host kernel does not have the support, it will allow only one group per container. The PHB's "iommuid" property is ignored. The ioctl is called for every container attached to the address space. At the moment there is just one container anyway. If there is no container attached to the address space, vfio_container_do_ioctl() returns -1. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> --- hw/ppc/spapr_pci_vfio.c | 17 ++++++----------- hw/vfio/common.c | 20 ++++++-------------- include/hw/vfio/vfio.h | 2 +- 3 files changed, 13 insertions(+), 26 deletions(-)