Changeset 91785 in vbox for trunk/src/VBox/HostDrivers/Support/freebsd

Timestamp:

Oct 17, 2021 1:35:07 PM (4 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

147571

Message:

SUPDrv: Added SUPR0HCPhysToVirt implementation for FreeBSD (untested). bugref:9627

File:

• trunk/src/VBox/HostDrivers/Support/freebsd/SUPDrv-freebsd.c (modified) (2 diffs)

trunk/src/VBox/HostDrivers/Support/freebsd/SUPDrv-freebsd.c

@@ -45 +45 @@
 #include <sys/conf.h>
 #include <sys/uio.h>
+#include <vm/pmap.h> /* for pmap_map() */
 
 #include "../SUPDrvInternal.h"
@@ -638 +639 @@
 
 
+#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_ARM64)
+SUPR0DECL(int) SUPR0HCPhysToVirt(RTHCPHYS HCPhys, void **ppv)
+{
+    AssertReturn(!(HCPhys & PAGE_OFFSET_MASK), VERR_INVALID_POINTER);
+    AssertReturn(HCPhys != NIL_RTHCPHYS, VERR_INVALID_POINTER);
+    *ppv = (void *)(uintptr_t)pmap_map(NULL, HCPhys, (HCPhys | PAGE_OFFSET_MASK) + 1, VM_PROT_WRITE | VM_PROT_READ);
+    return VINF_SUCCESS;
+}
+#endif
+
+
 SUPR0DECL(int) SUPR0Printf(const char *pszFormat, ...)
 {