From: Jack Lange <jacklange@cs.pitt.edu>
Date: Fri, 18 Nov 2011 23:22:15 +0000 (-0500)
Subject: Clear guest memory to 0 at init time.
X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?p=palacios.git;a=commitdiff_plain;h=cfd5e43722796b4951faf721c64f3a74ab81ff2b

Clear guest memory to 0 at init time.
This appears to fix problems with boot loaders who can't handle non-zero memory after machine reset.
---

diff --git a/palacios/src/palacios/vmm_mem.c b/palacios/src/palacios/vmm_mem.c
index c5000b9..dd262c0 100644
--- a/palacios/src/palacios/vmm_mem.c
+++ b/palacios/src/palacios/vmm_mem.c
@@ -72,6 +72,10 @@ int v3_init_mem_map(struct v3_vm_info * vm) {
     map->base_region.host_addr = (addr_t)V3_AllocPages(mem_pages);
 #endif
 
+    // Clear the memory...
+    memset(V3_VAddr((void *)map->base_region.host_addr), 0, mem_pages * PAGE_SIZE_4KB);
+
+
     map->base_region.flags.read = 1;
     map->base_region.flags.write = 1;
     map->base_region.flags.exec = 1;