Changeset 27999 in vbox for trunk/src

Timestamp:

Apr 6, 2010 12:24:02 PM (15 years ago)

Author:

vboxsync

Message:

Introducing PGMR3QueryBalloonSize

Location:

trunk/src/VBox/VMM

Files:

• GMM.cpp (modified) (1 diff)
• PGMPhys.cpp (modified) (1 diff)
• VMMR0/GMMR0.cpp (modified) (3 diffs)
• VMMR0/VMMR0.cpp (modified) (1 diff)

trunk/src/VBox/VMM/GMM.cpp

@@ -290 +290 @@
 }
 
+/**
+ * @see GMMR0QueryTotalBalloonSizeReq
+ */
+GMMR3DECL(int)  GMMR3QueryTotalBalloonSize(PVM pVM, uint64_t *pcTotalBalloonedPages)
+{
+    GMMBALLOONEDPAGESREQ Req;
+    Req.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
+    Req.Hdr.cbReq = sizeof(Req);
+    Req.cBalloonedPages = 0;
+
+    *pcTotalBalloonedPages = 0;
+    int rc = VMMR3CallR0(pVM, VMMR0_DO_GMM_QUERY_TOTAL_BALLOON_SIZE, 0, &Req.Hdr);
+    if (rc == VINF_SUCCESS)
+        *pcTotalBalloonedPages = Req.cBalloonedPages;
+
+    return rc;
+}
 
 /**

trunk/src/VBox/VMM/PGMPhys.cpp

@@ -953 +953 @@
 }
 
+/**
+ * Query the VM and host balloon sizes
+ *
+ * @returns VBox status code.
+ * @param   pVM             The VM handle.
+ * @param   puBalloonVM     Pointer to VM balloon size
+ * @param   puBalloonAllVMs Pointer to total balloon size of all VMs
+ */
+VMMR3DECL(int) PGMR3QueryBalloonSize(PVM pVM, uint64_t *puBalloonVM, uint64_t *puBalloonAllVMs)
+{
+    int rc = VINF_SUCCESS;
+
+    if (puBalloonVM)
+        *puBalloonVM = pVM->pgm.s.cBalloonedPages;
+
+    if (puBalloonAllVMs)
+    {
+        *puBalloonAllVMs = 0;
+        rc = GMMR3QueryTotalBalloonSize(pVM, puBalloonAllVMs);
+        AssertRC(rc);
+    }
+
+    return rc;
+}
 
 /**

trunk/src/VBox/VMM/VMMR0/GMMR0.cpp

@@ -2862 +2862 @@
              pVM, enmAction, cBalloonedPages));
 
+    AssertMsgReturn(cBalloonedPages < RT_BIT(32 - PAGE_SHIFT), ("%#x\n", cBalloonedPages), VERR_INVALID_PARAMETER);
+
     /*
      * Validate input and get the basics.
@@ -2871 +2873 @@
     if (RT_FAILURE(rc))
         return rc;
-
-    AssertMsgReturn(cBalloonedPages < RT_BIT(32 - PAGE_SHIFT), ("%#x\n", cBalloonedPages), VERR_INVALID_PARAMETER);
 
     /*
@@ -2991 +2991 @@
 }
 
+/**
+ * Return the total amount of ballooned pages for all VMs
+ *
+ * @returns VBox status code:
+ * @param   pVM             Pointer to the shared VM structure.
+ * @param   pReq            The request packet.
+ */
+GMMR0DECL(int) GMMR0QueryTotalBalloonSizeReq(PVM pVM, PGMMBALLOONQUERYREQ pReq)
+{
+    /*
+     * Validate input and pass it on.
+     */
+    AssertPtrReturn(pVM, VERR_INVALID_POINTER);
+    AssertPtrReturn(pReq, VERR_INVALID_POINTER);
+    AssertMsgReturn(pReq->Hdr.cbReq == sizeof(GMMBALLOONQUERYREQ),
+                    ("%#x < %#x\n", pReq->Hdr.cbReq, sizeof(GMMBALLOONQUERYREQ)),
+                    VERR_INVALID_PARAMETER);
+
+    /*
+     * Validate input and get the basics.
+     */
+    PGMM pGMM;
+    GMM_GET_VALID_INSTANCE(pGMM, VERR_INTERNAL_ERROR);
+    pReq->cBalloonedPages = pGMM->cBalloonedPages;
+    GMM_CHECK_SANITY_UPON_LEAVING(pGMM);
+
+    return VINF_SUCCESS;
+}
 
 /**

trunk/src/VBox/VMM/VMMR0/VMMR0.cpp

@@ -915 +915 @@
             return GMMR0BalloonedPagesReq(pVM, idCpu, (PGMMBALLOONEDPAGESREQ)pReqHdr);
 
+        case VMMR0_DO_GMM_QUERY_TOTAL_BALLOON_SIZE:
+            if (u64Arg)
+                return VERR_INVALID_PARAMETER;
+            return GMMR0QueryTotalBalloonSizeReq(pVM, (PGMMBALLOONQUERYREQ)pReqHdr);
+
         case VMMR0_DO_GMM_MAP_UNMAP_CHUNK:
             if (u64Arg)