Changeset 104848 in vbox for trunk/src/VBox/Runtime/r0drv/solaris/memobj-r0drv-solaris.c

Timestamp:

Jun 5, 2024 9:38:20 AM (8 months ago)

Author:

vboxsync

Message:

VMM/PGM,SUPDrv,IPRT: Added a RTR0MemObjZeroInitialize function to IPRT/SUPDrv for helping zero initializing MMIO2 backing memory. bugref:10687

File:

• trunk/src/VBox/Runtime/r0drv/solaris/memobj-r0drv-solaris.c (modified) (2 diffs)

trunk/src/VBox/Runtime/r0drv/solaris/memobj-r0drv-solaris.c

@@ -50 +50 @@
 #include <iprt/param.h>
 #include <iprt/process.h>
+#include <iprt/string.h>
 #include "internal/memobj.h"
 #include "memobj-r0drv-solaris.h"
@@ -1213 +1214 @@
 }
 
+
+DECLHIDDEN(int) rtR0MemObjNativeZeroInitWithoutMapping(PRTR0MEMOBJINTERNAL pMem)
+{
+    PRTR0MEMOBJSOL const pMemSolaris = (PRTR0MEMOBJSOL)pMem;
+    size_t const         cPages      = pMemSolaris->Core.cb >> PAGE_SHIFT;
+    size_t               iPage;
+    for (iPage = 0; iPage < cPages; iPage++)
+    {
+        void          *pvPage;
+
+        /* Get the physical address of the page. */
+        RTHCPHYS const HCPhys = rtR0MemObjNativeGetPagePhysAddr(&pMemSolaris->Core, iPage);
+        AssertReturn(HCPhys != NIL_RTHCPHYS, VERR_INTERNAL_ERROR_3);
+        Assert(!(HCPhys & PAGE_OFFSET_MASK));
+
+        /* Map it. */
+        HCPhys >>= PAGE_SHIFT;
+        AssertReturn(HCPhys <= physmax, VERR_INTERNAL_ERROR_3);
+        pvPage = hat_kpm_pfn2va(HCPhys);
+        AssertPtrReturn(pvPage, VERR_INTERNAL_ERROR_3);
+
+        /* Zero it. */
+        RT_BZERO(pvPage, PAGE_SIZE);
+    }
+    return VINF_SUCCESS;
+}
+