Changeset 14825 in vbox for trunk/include/VBox

Timestamp:

Nov 30, 2008 7:54:21 AM (16 years ago)

Author:

vboxsync

Message:

SUPDrv: Permit userland to make kernel mappings of SUPR0PageAllocEx allocations. (darwin + VGA + VT-x, #1865/#3202)

File:

• trunk/include/VBox/sup.h (modified) (2 diffs)

trunk/include/VBox/sup.h

@@ -567 +567 @@
 
 /**
+ * Maps a portion of a ring-3 only allocation into kernel space.
+ *
+ * @return VBox status code.
+ *
+ * @param  pvR3             The address SUPR3PageAllocEx return.
+ * @param  off              Offset to start mapping at. Must be page aligned.
+ * @param  cb               Number of bytes to map. Must be page aligned.
+ * @param  fFlags           Flags, must be zero.
+ * @param  pR0Ptr           Where to store the address on success.
+ *
+ */
+SUPR3DECL(int) SUPR3PageMapKernel(void *pvR3, uint32_t off, uint32_t cb, uint32_t fFlags, PRTR0PTR pR0Ptr);
+
+/**
  * Free pages allocated by SUPR3PageAllocEx.
  *
@@ -837 +851 @@
 SUPR0DECL(int) SUPR0PageAlloc(PSUPDRVSESSION pSession, uint32_t cPages, PRTR3PTR ppvR3, PRTHCPHYS paPages);
 SUPR0DECL(int) SUPR0PageAllocEx(PSUPDRVSESSION pSession, uint32_t cPages, uint32_t fFlags, PRTR3PTR ppvR3, PRTR0PTR ppvR0, PRTHCPHYS paPages);
+SUPR0DECL(int) SUPR0PageMapKernel(PSUPDRVSESSION pSession, RTR3PTR pvR3, uint32_t offSub, uint32_t cbSub, uint32_t fFlags, PRTR0PTR ppvR0);
 SUPR0DECL(int) SUPR0PageFree(PSUPDRVSESSION pSession, RTR3PTR pvR3);
 SUPR0DECL(int) SUPR0GipMap(PSUPDRVSESSION pSession, PRTR3PTR ppGipR3, PRTHCPHYS pHCPhysGip);