hw/ppc/spapr: Convert DIRTY_HPTE() macro as hpte_set_dirty() method

Convert DIRTY_HPTE() macro as hpte_set_dirty() method.

sPAPR data structures including the hash page table are big-endian
regardless of current CPU endian mode, so use the big-endian LD/ST
API to access the hash PTEs.

Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Message-ID: <20241220213103.6314-6-philmd@linaro.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>

hw/ppc/spapr.c

@@ -1425,7 +1425,11 @@ static void hpte_set_clean(SpaprMachineState *s, unsigned index)
              ldq_be_p(hpte_get_ptr(s, index)) & ~HPTE64_V_HPTE_DIRTY);
 }
 
-#define DIRTY_HPTE(_hpte)  ((*(uint64_t *)(_hpte)) |= tswap64(HPTE64_V_HPTE_DIRTY))
+static void hpte_set_dirty(SpaprMachineState *s, unsigned index)
+{
+    stq_be_p(hpte_get_ptr(s, index),
+             ldq_be_p(hpte_get_ptr(s, index)) | HPTE64_V_HPTE_DIRTY);
+}
 
 /*
  * Get the fd to access the kernel htab, re-opening it if necessary
@@ -1636,7 +1640,7 @@ int spapr_reallocate_hpt(SpaprMachineState *spapr, int shift, Error **errp)
         spapr->htab_shift = shift;
 
         for (i = 0; i < size / HASH_PTE_SIZE_64; i++) {
-            DIRTY_HPTE(hpte_get_ptr(spapr, i));
+            hpte_set_dirty(spapr, i);
         }
     }
     /* We're setting up a hash table, so that means we're not radix */