@@ -65,6 +65,11 @@ struct vtd_as_key {
uint32_t pasid;
};
+struct vtd_as_raw_key {
+ uint16_t sid;
+ uint32_t pasid;
+};
+
struct vtd_iotlb_key {
uint64_t gfn;
uint32_t pasid;
@@ -1931,29 +1936,33 @@ static inline bool vtd_is_interrupt_addr(hwaddr addr)
return VTD_INTERRUPT_ADDR_FIRST <= addr && addr <= VTD_INTERRUPT_ADDR_LAST;
}
-static gboolean vtd_find_as_by_sid(gpointer key, gpointer value,
- gpointer user_data)
+static gboolean vtd_find_as_by_sid_and_pasid(gpointer key, gpointer value,
+ gpointer user_data)
{
struct vtd_as_key *as_key = (struct vtd_as_key *)key;
- uint16_t target_sid = *(uint16_t *)user_data;
+ struct vtd_as_raw_key target = *(struct vtd_as_raw_key *)user_data;
uint16_t sid = PCI_BUILD_BDF(pci_bus_num(as_key->bus), as_key->devfn);
- return sid == target_sid;
+
+ return (as_key->pasid == target.pasid) &&
+ (sid == target.sid);
}
-static VTDAddressSpace *vtd_get_as_by_sid(IntelIOMMUState *s, uint16_t sid)
+static VTDAddressSpace *vtd_get_as_by_sid_and_pasid(IntelIOMMUState *s,
+ uint16_t sid,
+ uint32_t pasid)
{
- uint8_t bus_num = PCI_BUS_NUM(sid);
- VTDAddressSpace *vtd_as = s->vtd_as_cache[bus_num];
-
- if (vtd_as &&
- (sid == PCI_BUILD_BDF(pci_bus_num(vtd_as->bus), vtd_as->devfn))) {
- return vtd_as;
- }
+ struct vtd_as_raw_key key = {
+ .sid = sid,
+ .pasid = pasid
+ };
- vtd_as = g_hash_table_find(s->vtd_address_spaces, vtd_find_as_by_sid, &sid);
- s->vtd_as_cache[bus_num] = vtd_as;
+ return g_hash_table_find(s->vtd_address_spaces,
+ vtd_find_as_by_sid_and_pasid, &key);
+}
- return vtd_as;
+static VTDAddressSpace *vtd_get_as_by_sid(IntelIOMMUState *s, uint16_t sid)
+{
+ return vtd_get_as_by_sid_and_pasid(s, sid, PCI_NO_PASID);
}
static void vtd_pt_enable_fast_path(IntelIOMMUState *s, uint16_t source_id)
This will be used to implement the device IOTLB invalidation Signed-off-by: Clément Mathieu--Drif <clement.mathieu--drif@eviden.com> --- hw/i386/intel_iommu.c | 39 ++++++++++++++++++++++++--------------- 1 file changed, 24 insertions(+), 15 deletions(-)