From: Jack Lange <jacklange@cs.pitt.edu>
Date: Mon, 24 Sep 2012 20:21:19 +0000 (-0400)
Subject: update CPUID to disable unsupported features (MTRRS, ARET, APIC2) and globalize the... 
X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=commitdiff_plain;h=60628a7a3b37ac2dae5c033d3c4ee9e9f6af7d95;p=palacios.git

update CPUID to disable unsupported features (MTRRS, ARET, APIC2) and globalize the hypervisor flag
---

diff --git a/palacios/src/extensions/ext_vmware.c b/palacios/src/extensions/ext_vmware.c
index 9026db9..ea1c789 100644
--- a/palacios/src/extensions/ext_vmware.c
+++ b/palacios/src/extensions/ext_vmware.c
@@ -89,13 +89,14 @@ static int vmware_init(struct v3_vm_info * vm, v3_cfg_tree_t * cfg, void ** priv
 
     V3_Print("Using VMWARE virtualization persona\n");
 
+/*
     v3_cpuid_add_fields(vm, 0x00000001, 
 			0, 0, 
 			0, 0, 
 			0x80000000, 0x80000000,
 			0, 0
 			);
-
+*/
 
     v3_hook_io_port(vm, VMWARE_IO_PORT, 
 		    io_read, io_write, 
diff --git a/palacios/src/palacios/vmm_cpuid.c b/palacios/src/palacios/vmm_cpuid.c
index bd0862b..e36f5c2 100644
--- a/palacios/src/palacios/vmm_cpuid.c
+++ b/palacios/src/palacios/vmm_cpuid.c
@@ -46,6 +46,27 @@ void v3_init_cpuid_map(struct v3_vm_info * vm) {
     // Disable MONITOR/MWAIT (cpuid 0x01, ECX bit 3)
     v3_cpuid_add_fields(vm, 0x01, 0, 0, 0, 0, (1 << 3), 0, 0, 0);
 
+
+    // disable MTRR
+    v3_cpuid_add_fields(vm, 0x00000001, 0, 0, 0, 0, 0, 0, (1 << 12), 0);
+    // disable PAT
+    v3_cpuid_add_fields(vm, 0x00000001, 0, 0, 0, 0, 0, 0, (1 << 16), 0);
+    // disable X2APIC
+    v3_cpuid_add_fields(vm, 0x00000001, 0, 0, 0, 0, (1 << 21), 0, 0, 0);
+
+
+    // Demarcate machine as a VM
+    v3_cpuid_add_fields(vm, 0x00000001,
+                        0, 0,
+                        0, 0,
+                        0x80000000, 0x80000000,
+                        0, 0
+                        );
+
+
+    // disable ARAT
+    v3_cpuid_add_fields(vm, 0x00000006, (1 << 2), 0, 0, 0, 0, 0, 0, 0);
+
 }