Changeset 4938 in vbox

Timestamp:

Sep 21, 2007 7:24:28 AM (17 years ago)

Author:

vboxsync

Message:

1.5: Backported r24649: do not turn off interrupts in GIP timer handler

File:

• trunk/src/VBox/HostDrivers/Support/SUPDRVShared.c (modified) (2 diffs)

trunk/src/VBox/HostDrivers/Support/SUPDRVShared.c

@@ -548 +548 @@
 int VBOXCALL supdrvIOCtlFast(uintptr_t uIOCtl, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession)
 {
-    /*
-     * Disable interrupts before invoking VMMR0Entry() because it ASSUMES
-     * that interrupts are disabled. (We check the two prereqs after doing
-     * this only to allow the compiler to optimize things better.)
-     */
-    int         rc;
-    RTCCUINTREG uFlags = ASMGetFlags();
-    ASMIntDisable();
-
+    int rc;
+
+    /*
+     * We check the two prereqs after doing this only to allow the compiler to optimize things better.
+     */
     if (RT_LIKELY(pSession->pVM && pDevExt->pfnVMMR0EntryFast))
     {
@@ -578 +574 @@
         rc = VERR_INTERNAL_ERROR;
 
-    ASMSetFlags(uFlags);
     return rc;
 }