Changeset 21094 in vbox for trunk/include/VBox

Timestamp:

Jun 30, 2009 6:53:15 PM (16 years ago)

Author:

vboxsync

Message:

VMM: Added MMR3HyperAllocOnceNoRelEx so that we can force the ring-0 logger instances to always have a valid ring-0 mapping. Fixes crashes on FC8 when hitting a breakpoint (debug build w/ ring-0 logging enabled).

File:

• trunk/include/VBox/mm.h (modified) (1 diff)

trunk/include/VBox/mm.h

@@ -263 +263 @@
  * @{ */
 VMMR3DECL(int)      MMR3HyperAllocOnceNoRel(PVM pVM, size_t cb, uint32_t uAlignment, MMTAG enmTag, void **ppv);
+VMMR3DECL(int)      MMR3HyperAllocOnceNoRelEx(PVM pVM, size_t cb, uint32_t uAlignment, MMTAG enmTag, uint32_t fFlags, void **ppv);
+/** @name  MMR3HyperAllocOnceNoRelEx flags
+ * @{ */
+/** Must have kernel mapping.
+ * If not specified, the R0 pointer may point to the user process mapping. */
+#define MMHYPER_AONR_FLAGS_KERNEL_MAPPING   RT_BIT(0)
+/** @} */
 VMMR3DECL(int)      MMR3HyperSetGuard(PVM pVM, void *pvStart, size_t cb, bool fSet);
 VMMR3DECL(int)      MMR3HyperMapHCPhys(PVM pVM, void *pvR3, RTR0PTR pvR0, RTHCPHYS HCPhys, size_t cb, const char *pszDesc, PRTGCPTR pGCPtr);