spapr_iommu: Get rid of window_size in sPAPRTCETable
This removes window_size as it is basically a copy of nb_table
shifted by SPAPR_TCE_PAGE_SHIFT. As new dynamic DMA windows are
going to support windows as big as the entire RAM and this number
will be bigger that 32 capacity, we will have to do something
about @window_size anyway and removal seems to be the right way to go.
This removes dma_window_start/dma_window_size from sPAPRPHBState as
they are no longer used.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/hw/ppc/spapr_iommu.c b/hw/ppc/spapr_iommu.c
index e5fd088..738b936 100644
--- a/hw/ppc/spapr_iommu.c
+++ b/hw/ppc/spapr_iommu.c
@@ -70,7 +70,7 @@
if (tcet->bypass) {
ret.perm = IOMMU_RW;
- } else if (addr < tcet->window_size) {
+ } else if ((addr >> SPAPR_TCE_PAGE_SHIFT) < tcet->nb_table) {
/* Check if we are in bound */
tce = tcet->table[addr >> SPAPR_TCE_PAGE_SHIFT];
ret.iova = addr & ~SPAPR_TCE_PAGE_MASK;
@@ -84,24 +84,14 @@
return ret;
}
-static int spapr_tce_table_pre_load(void *opaque)
-{
- sPAPRTCETable *tcet = SPAPR_TCE_TABLE(opaque);
-
- tcet->nb_table = tcet->window_size >> SPAPR_TCE_PAGE_SHIFT;
-
- return 0;
-}
-
static const VMStateDescription vmstate_spapr_tce_table = {
.name = "spapr_iommu",
- .version_id = 1,
- .minimum_version_id = 1,
- .pre_load = spapr_tce_table_pre_load,
- .fields = (VMStateField[]) {
+ .version_id = 2,
+ .minimum_version_id = 2,
+ .fields = (VMStateField []) {
/* Sanity check */
VMSTATE_UINT32_EQUAL(liobn, sPAPRTCETable),
- VMSTATE_UINT32_EQUAL(window_size, sPAPRTCETable),
+ VMSTATE_UINT32_EQUAL(nb_table, sPAPRTCETable),
/* IOMMU state */
VMSTATE_BOOL(bypass, sPAPRTCETable),
@@ -121,16 +111,15 @@
if (kvm_enabled()) {
tcet->table = kvmppc_create_spapr_tce(tcet->liobn,
- tcet->window_size,
+ tcet->nb_table <<
+ SPAPR_TCE_PAGE_SHIFT,
&tcet->fd);
}
if (!tcet->table) {
- size_t table_size = (tcet->window_size >> SPAPR_TCE_PAGE_SHIFT)
- * sizeof(uint64_t);
+ size_t table_size = tcet->nb_table * sizeof(uint64_t);
tcet->table = g_malloc0(table_size);
}
- tcet->nb_table = tcet->window_size >> SPAPR_TCE_PAGE_SHIFT;
trace_spapr_iommu_new_table(tcet->liobn, tcet, tcet->table, tcet->fd);
@@ -145,7 +134,8 @@
return 0;
}
-sPAPRTCETable *spapr_tce_new_table(DeviceState *owner, uint32_t liobn, size_t window_size)
+sPAPRTCETable *spapr_tce_new_table(DeviceState *owner, uint32_t liobn,
+ uint32_t nb_table)
{
sPAPRTCETable *tcet;
@@ -155,13 +145,13 @@
return NULL;
}
- if (!window_size) {
+ if (!nb_table) {
return NULL;
}
tcet = SPAPR_TCE_TABLE(object_new(TYPE_SPAPR_TCE_TABLE));
tcet->liobn = liobn;
- tcet->window_size = window_size;
+ tcet->nb_table = nb_table;
object_property_add_child(OBJECT(owner), "tce-table", OBJECT(tcet), NULL);
@@ -178,7 +168,7 @@
if (!kvm_enabled() ||
(kvmppc_remove_spapr_tce(tcet->table, tcet->fd,
- tcet->window_size) != 0)) {
+ tcet->nb_table) != 0)) {
g_free(tcet->table);
}
}
@@ -196,8 +186,7 @@
static void spapr_tce_reset(DeviceState *dev)
{
sPAPRTCETable *tcet = SPAPR_TCE_TABLE(dev);
- size_t table_size = (tcet->window_size >> SPAPR_TCE_PAGE_SHIFT)
- * sizeof(uint64_t);
+ size_t table_size = tcet->nb_table * sizeof(uint64_t);
tcet->bypass = false;
memset(tcet->table, 0, table_size);
@@ -208,7 +197,7 @@
{
IOMMUTLBEntry entry;
- if (ioba >= tcet->window_size) {
+ if ((ioba >> SPAPR_TCE_PAGE_SHIFT) >= tcet->nb_table) {
hcall_dprintf("spapr_vio_put_tce on out-of-bounds IOBA 0x"
TARGET_FMT_lx "\n", ioba);
return H_PARAMETER;
@@ -324,7 +313,7 @@
static target_ulong get_tce_emu(sPAPRTCETable *tcet, target_ulong ioba,
target_ulong *tce)
{
- if (ioba >= tcet->window_size) {
+ if ((ioba >> SPAPR_TCE_PAGE_SHIFT) >= tcet->nb_table) {
hcall_dprintf("spapr_iommu_get_tce on out-of-bounds IOBA 0x"
TARGET_FMT_lx "\n", ioba);
return H_PARAMETER;
@@ -395,7 +384,7 @@
}
return spapr_dma_dt(fdt, node_off, propname,
- tcet->liobn, 0, tcet->window_size);
+ tcet->liobn, 0, tcet->nb_table << SPAPR_TCE_PAGE_SHIFT);
}
static void spapr_tce_table_class_init(ObjectClass *klass, void *data)
