intel_iommu: Rename vtd_ce_get_rid2pasid_entry to vtd_ce_get_pasid_entry

In early days vtd_ce_get_rid2pasid_entry() was used to get pasid entry
of rid2pasid, then it was extended to get any pasid entry. So a new name
vtd_ce_get_pasid_entry is better to match what it actually does.

No functional change intended.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Clément Mathieu--Drif <clement.mathieu--drif@eviden.com>
Reviewed-by: Yi Liu <yi.l.liu@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20260106061304.314546-2-zhenzhong.duan@intel.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>

hw/i386/intel_iommu.c

@@ -954,10 +954,8 @@ static int vtd_get_pe_from_pasid_table(IntelIOMMUState *s,
     return 0;
 }
 
-static int vtd_ce_get_rid2pasid_entry(IntelIOMMUState *s,
-                                      VTDContextEntry *ce,
-                                      VTDPASIDEntry *pe,
-                                      uint32_t pasid)
+static int vtd_ce_get_pasid_entry(IntelIOMMUState *s, VTDContextEntry *ce,
+                                  VTDPASIDEntry *pe, uint32_t pasid)
 {
     dma_addr_t pasid_dir_base;
     int ret = 0;
@@ -1035,7 +1033,7 @@ static uint32_t vtd_get_iova_level(IntelIOMMUState *s,
     VTDPASIDEntry pe;
 
     if (s->root_scalable) {
-        vtd_ce_get_rid2pasid_entry(s, ce, &pe, pasid);
+        vtd_ce_get_pasid_entry(s, ce, &pe, pasid);
         if (s->flts) {
             return VTD_PE_GET_FL_LEVEL(&pe);
         } else {
@@ -1058,7 +1056,7 @@ static uint32_t vtd_get_iova_agaw(IntelIOMMUState *s,
     VTDPASIDEntry pe;
 
     if (s->root_scalable) {
-        vtd_ce_get_rid2pasid_entry(s, ce, &pe, pasid);
+        vtd_ce_get_pasid_entry(s, ce, &pe, pasid);
         return 30 + ((pe.val[0] >> 2) & VTD_SM_PASID_ENTRY_AW) * 9;
     }
 
@@ -1126,7 +1124,7 @@ static dma_addr_t vtd_get_iova_pgtbl_base(IntelIOMMUState *s,
     VTDPASIDEntry pe;
 
     if (s->root_scalable) {
-        vtd_ce_get_rid2pasid_entry(s, ce, &pe, pasid);
+        vtd_ce_get_pasid_entry(s, ce, &pe, pasid);
         if (s->flts) {
             return pe.val[2] & VTD_SM_PASID_ENTRY_FLPTPTR;
         } else {
@@ -1532,7 +1530,7 @@ static int vtd_ce_rid2pasid_check(IntelIOMMUState *s,
      * has valid rid2pasid setting, which includes valid
      * rid2pasid field and corresponding pasid entry setting
      */
-    return vtd_ce_get_rid2pasid_entry(s, ce, &pe, PCI_NO_PASID);
+    return vtd_ce_get_pasid_entry(s, ce, &pe, PCI_NO_PASID);
 }
 
 /* Map a device to its corresponding domain (context-entry) */
@@ -1621,7 +1619,7 @@ static uint16_t vtd_get_domain_id(IntelIOMMUState *s,
     VTDPASIDEntry pe;
 
     if (s->root_scalable) {
-        vtd_ce_get_rid2pasid_entry(s, ce, &pe, pasid);
+        vtd_ce_get_pasid_entry(s, ce, &pe, pasid);
         return VTD_SM_PASID_ENTRY_DID(pe.val[1]);
     }
 
@@ -1697,7 +1695,7 @@ static bool vtd_dev_pt_enabled(IntelIOMMUState *s, VTDContextEntry *ce,
     int ret;
 
     if (s->root_scalable) {
-        ret = vtd_ce_get_rid2pasid_entry(s, ce, &pe, pasid);
+        ret = vtd_ce_get_pasid_entry(s, ce, &pe, pasid);
         if (ret) {
             /*
              * This error is guest triggerable. We should assumt PT
@@ -3083,7 +3081,7 @@ static inline int vtd_dev_get_pe_from_pasid(VTDAddressSpace *vtd_as,
         return ret;
     }
 
-    return vtd_ce_get_rid2pasid_entry(s, &ce, pe, vtd_as->pasid);
+    return vtd_ce_get_pasid_entry(s, &ce, pe, vtd_as->pasid);
 }
 
 static int vtd_pasid_entry_compare(VTDPASIDEntry *p1, VTDPASIDEntry *p2)
@@ -5161,7 +5159,7 @@ static int vtd_pri_perform_implicit_invalidation(VTDAddressSpace *vtd_as,
     if (ret) {
         return -EINVAL;
     }
-    ret = vtd_ce_get_rid2pasid_entry(s, &ce, &pe, vtd_as->pasid);
+    ret = vtd_ce_get_pasid_entry(s, &ce, &pe, vtd_as->pasid);
     if (ret) {
         return -EINVAL;
     }