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authorDavid Gibson <david@gibson.dropbear.id.au>2015-09-30 13:42:55 +1000
committerDavid Gibson <david@gibson.dropbear.id.au>2015-10-23 10:38:10 +1100
commit6a81dd172cd5d03fce593741629cb4c78fff10cb (patch)
treef60f2aa11b8bbfc9fbd1bc0e055728d6032fb453 /hw/ppc
parentf93caaac36ec3b030184055596cb56f64d0de988 (diff)
spapr_iommu: Rename vfio_accel parameter
The vfio_accel parameter used when creating a new TCE table (guest IOMMU context) has a confusing name. What it really means is whether we need the TCE table created to be able to support VFIO devices. VFIO is relevant, because when available we use in-kernel acceleration of the TCE table, but that may not work with VFIO devices because updates to the table are handled in kernel, bypass qemu and so don't hit qemu's infrastructure for keeping the VFIO host IOMMU state in sync with the guest IOMMU state. Rename the parameter to "need_vfio" throughout. This is a cosmetic change, with no impact on the logic. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Diffstat (limited to 'hw/ppc')
-rw-r--r--hw/ppc/spapr_iommu.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/hw/ppc/spapr_iommu.c b/hw/ppc/spapr_iommu.c
index f61504e0c5..5166cde422 100644
--- a/hw/ppc/spapr_iommu.c
+++ b/hw/ppc/spapr_iommu.c
@@ -146,7 +146,7 @@ static int spapr_tce_table_realize(DeviceState *dev)
tcet->table = kvmppc_create_spapr_tce(tcet->liobn,
window_size,
&tcet->fd,
- tcet->vfio_accel);
+ tcet->need_vfio);
}
if (!tcet->table) {
@@ -172,7 +172,7 @@ sPAPRTCETable *spapr_tce_new_table(DeviceState *owner, uint32_t liobn,
uint64_t bus_offset,
uint32_t page_shift,
uint32_t nb_table,
- bool vfio_accel)
+ bool need_vfio)
{
sPAPRTCETable *tcet;
char tmp[64];
@@ -192,7 +192,7 @@ sPAPRTCETable *spapr_tce_new_table(DeviceState *owner, uint32_t liobn,
tcet->bus_offset = bus_offset;
tcet->page_shift = page_shift;
tcet->nb_table = nb_table;
- tcet->vfio_accel = vfio_accel;
+ tcet->need_vfio = need_vfio;
snprintf(tmp, sizeof(tmp), "tce-table-%x", liobn);
object_property_add_child(OBJECT(owner), tmp, OBJECT(tcet), NULL);