From: Jack Lange <jacklange@cs.pitt.edu>
Date: Thu, 26 May 2011 17:57:12 +0000 (-0500)
Subject: removed active_vmcs_ptrs array and read the active VMCS directly from hardware.
X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=commitdiff_plain;h=9b82fd29e9dc2b85339938098f77d8cf3487b099;p=palacios-OLD.git

removed active_vmcs_ptrs array and read the active VMCS directly from hardware.
---

diff --git a/palacios/include/palacios/vmx_lowlevel.h b/palacios/include/palacios/vmx_lowlevel.h
index ce6a440..c169139 100644
--- a/palacios/include/palacios/vmx_lowlevel.h
+++ b/palacios/include/palacios/vmx_lowlevel.h
@@ -97,17 +97,17 @@ static inline int vmcs_load(addr_t vmcs_ptr) {
     return VMX_SUCCESS;
 }
 
-static inline int vmcs_store(addr_t vmcs_ptr) {
-    uint64_t vmcs_ptr_64 = (uint64_t)vmcs_ptr;
+static inline addr_t vmcs_store() {
+    uint64_t vmcs_ptr = 0;
 
     __asm__ __volatile__ (
                VMPTRST_OPCODE
                EAX_07_MODRM
                :
-               : "a"(&vmcs_ptr_64)
+               : "a"(&vmcs_ptr)
                : "memory");
 
-    return VMX_SUCCESS;
+    return vmcs_ptr;
 }
 
 static inline int vmcs_read(vmcs_field_t vmcs_field, void * dst) {
diff --git a/palacios/src/palacios/vmx.c b/palacios/src/palacios/vmx.c
index 55f578a..106239f 100644
--- a/palacios/src/palacios/vmx.c
+++ b/palacios/src/palacios/vmx.c
@@ -47,7 +47,6 @@ static struct vmx_hw_info hw_info;
 
 extern v3_cpu_arch_t v3_cpu_types[];
 
-static addr_t active_vmcs_ptrs[V3_CONFIG_MAX_CPUS] = { [0 ... V3_CONFIG_MAX_CPUS - 1] = 0};
 static addr_t host_vmcs_ptrs[V3_CONFIG_MAX_CPUS] = { [0 ... V3_CONFIG_MAX_CPUS - 1] = 0};
 
 extern int v3_vmx_launch(struct v3_gprs * vm_regs, struct guest_info * info, struct v3_ctrl_regs * ctrl_regs);
@@ -106,7 +105,6 @@ static int init_vmcs_bios(struct guest_info * core, struct vmx_data * vmx_state)
 
     PrintDebug("Loading VMCS\n");
     vmx_ret = vmcs_load(vmx_state->vmcs_ptr_phys);
-    active_vmcs_ptrs[V3_Get_CPU()] = vmx_state->vmcs_ptr_phys;
     vmx_state->state = VMX_UNLAUNCHED;
 
     if (vmx_ret != VMX_SUCCESS) {
@@ -755,9 +753,8 @@ int v3_vmx_enter(struct guest_info * info) {
     v3_disable_ints();
 
 
-    if (active_vmcs_ptrs[V3_Get_CPU()] != vmx_info->vmcs_ptr_phys) {
+    if (vmcs_store() != vmx_info->vmcs_ptr_phys) {
 	vmcs_load(vmx_info->vmcs_ptr_phys);
-	active_vmcs_ptrs[V3_Get_CPU()] = vmx_info->vmcs_ptr_phys;
     }