[HALX86] Partly implement HalCalculateScatterGatherListSize

2026-08-27 03:43:36 +00:00 · 2021-11-07 14:07:55 +01:00
parent 05d52aba2b
commit eb283043d5
1 changed files with 12 additions and 2 deletions
@@ -1173,8 +1173,18 @@ HalCalculateScatterGatherListSize(
    OUT PULONG ScatterGatherListSize,
    OUT PULONG pNumberOfMapRegisters)
 {
-    UNIMPLEMENTED;
-    return STATUS_NOT_IMPLEMENTED;
+    ULONG NumberOfMapRegisters;
+    ULONG SgSize;
+
+    UNIMPLEMENTED_ONCE;
+
+    NumberOfMapRegisters = PAGE_ROUND_UP(Length) >> PAGE_SHIFT;
+    SgSize = sizeof(SCATTER_GATHER_CONTEXT);
+
+    *ScatterGatherListSize = SgSize;
+    if (pNumberOfMapRegisters) *pNumberOfMapRegisters = NumberOfMapRegisters;
+
+    return STATUS_SUCCESS;
 }

 NTSTATUS