From: Peter Dinda <pdinda@northwestern.edu>
Date: Sun, 22 Jun 2014 23:05:39 +0000 (-0500)
Subject: Expose swapping and pinning to host + add visibility to linux module
X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?p=palacios.git;a=commitdiff_plain;h=928297a7cf5ffbf3a210fcaf7556e681bbb436d5

Expose swapping and pinning to host + add visibility to linux module

/proc/v3vee/v3-guests-details will now show the swapped or pinned state
of regions
---

diff --git a/linux_module/main.c b/linux_module/main.c
index 34c24f7..2da1b22 100644
--- a/linux_module/main.c
+++ b/linux_module/main.c
@@ -355,9 +355,11 @@ static int read_guests_details(struct seq_file *s, void *v)
 
 		seq_printf(s, "\nMemory Regions\n");
 		for (j=0;j<mem->num_regions;j++) { 
-		    seq_printf(s,"   region %u has HPAs 0x%p-0x%p (node %d)\n",
+		    seq_printf(s,"   region %u has HPAs 0x%p-0x%p (node %d) %s %s\n",
 			       j, mem->region[j].host_paddr, mem->region[j].host_paddr+mem->region[j].size,
-			       numa_addr_to_node((uintptr_t)(mem->region[j].host_paddr)));
+			       numa_addr_to_node((uintptr_t)(mem->region[j].host_paddr)),
+			       mem->region[j].swapped ? "swapped" : "",
+			       mem->region[j].pinned ? "pinned" : "");
 		}
 	    }
 	    seq_printf(s,
diff --git a/palacios/include/palacios/vmm.h b/palacios/include/palacios/vmm.h
index 78373bc..7aba5de 100644
--- a/palacios/include/palacios/vmm.h
+++ b/palacios/include/palacios/vmm.h
@@ -402,6 +402,8 @@ struct v3_vm_core_state {
 struct v3_vm_mem_region {
     void               *host_paddr;
     unsigned long long  size;
+    int                 swapped;
+    int                 pinned;
 };
 
 struct v3_vm_mem_state {
diff --git a/palacios/src/palacios/vmm.c b/palacios/src/palacios/vmm.c
index 2f1a7bb..e16e2fa 100644
--- a/palacios/src/palacios/vmm.c
+++ b/palacios/src/palacios/vmm.c
@@ -862,6 +862,14 @@ int v3_get_state_vm(struct v3_vm_info        *vm,
     for (i=0;i<vm->mem_map.num_base_regions;i++) {
 	mem->region[i].host_paddr =  (void*)(vm->mem_map.base_regions[i].host_addr);
 	mem->region[i].size = v3_mem_block_size;
+#ifdef V3_CONFIG_SWAPPING
+	mem->region[i].swapped = vm->mem_map.base_regions[i].flags.swapped;
+	mem->region[i].pinned = vm->mem_map.base_regions[i].flags.pinned;
+#else
+	mem->region[i].swapped = 0;
+	mem->region[i].pinned = 0;
+#endif
+
     }
 
     mem->num_regions=numregions;