Changeset 93617 in vbox for trunk/src/VBox/VMM/include

Timestamp:

Feb 6, 2022 8:35:16 AM (3 years ago)

Author:

vboxsync

Message:

VMM/PGMPool: Replaced MMR3HyperAllocOnceNoRel call with direct SUPR3PageAllocEx call, replacing a few associated MMHyperCCToR3/R0 calls with speedier pgmPoolConvertPageToR3/R0 ones. bugref:10093

File:

• trunk/src/VBox/VMM/include/PGMInternal.h (modified) (2 diffs)

trunk/src/VBox/VMM/include/PGMInternal.h

@@ -1984 +1984 @@
     /** The VM handle - R0 Ptr. */
     R0PTRTYPE(PVMCC)            pVMR0;
+    /** The ring-3 pointer to this structure. */
+    R3PTRTYPE(struct PGMPOOL *) pPoolR3;
+    /** The ring-0 pointer to this structure. */
+    R0PTRTYPE(struct PGMPOOL *) pPoolR0;
     /** The max pool size. This includes the special IDs. */
     uint16_t                    cMaxPages;
@@ -3666 +3670 @@
 void            pgmPoolResetDirtyPage(PVMCC pVM, RTGCPTR GCPtrPage);
 
+/** Gets the ring-0 pointer for the given pool page. */
+DECLINLINE(R0PTRTYPE(PPGMPOOLPAGE)) pgmPoolConvertPageToR0(PPGMPOOL pPool, PPGMPOOLPAGE pPage)
+{
+#ifdef IN_RING3
+    size_t offPage = (uintptr_t)pPage - (uintptr_t)pPool;
+# ifdef VBOX_STRICT
+    size_t iPage   = (offPage - RT_UOFFSETOF(PGMPOOL, aPages)) / sizeof(*pPage);
+    AssertReturn(iPage < pPool->cMaxPages, NIL_RTR0PTR);
+    AssertReturn(iPage * sizeof(*pPage) + RT_UOFFSETOF(PGMPOOL, aPages) == offPage, NIL_RTR0PTR);
+# endif
+    return pPool->pPoolR0 + offPage;
+#else
+    RT_NOREF(pPool);
+    return pPage;
+#endif
+}
+
+/** Gets the ring-3 pointer for the given pool page. */
+DECLINLINE(R3PTRTYPE(PPGMPOOLPAGE)) pgmPoolConvertPageToR3(PPGMPOOL pPool, PPGMPOOLPAGE pPage)
+{
+#ifdef IN_RING3
+    RT_NOREF(pPool);
+    return pPage;
+#else
+    size_t offPage = (uintptr_t)pPage - (uintptr_t)pPool;
+# ifdef VBOX_STRICT
+    size_t iPage   = (offPage - RT_UOFFSETOF(PGMPOOL, aPages)) / sizeof(*pPage);
+    AssertReturn(iPage < pPool->cMaxPages, NIL_RTR3PTR);
+    AssertReturn(iPage * sizeof(*pPage) + RT_UOFFSETOF(PGMPOOL, aPages) == offPage, NIL_RTR3PTR);
+# endif
+    return pPool->pPoolR3 + offPage;
+#endif
+}
+
 int             pgmR3ExitShadowModeBeforePoolFlush(PVMCPU pVCpu);
 int             pgmR3ReEnterShadowModeAfterPoolFlush(PVM pVM, PVMCPU pVCpu);