X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmx_msr.c;h=2d9df85dbaa2f8f63c994c13527d893abedc8f5a;hb=HEAD;hp=fa53ffc3be0c96e1011b6069a3ef95b865a0bf48;hpb=61597ea2c5ccace036d8a65e429e32b8f8a7ed4a;p=palacios.git

diff --git a/palacios/src/palacios/vmx_msr.c b/palacios/src/palacios/vmx_msr.c
index fa53ffc..2d9df85 100644
--- a/palacios/src/palacios/vmx_msr.c
+++ b/palacios/src/palacios/vmx_msr.c
@@ -19,40 +19,59 @@
 
 #include <palacios/vmm.h>
 #include <palacios/vm_guest.h>
+#include <palacios/vmm_msr.h>
+
+#define LOW_MSR_START   0x00000000
+#define LOW_MSR_END     0x1fff
+#define HIGH_MSR_START  0xc0000000
+#define HIGH_MSR_END    0xc0001fff
+
+#define LOW_MSR_INDEX   0
+#define HIGH_MSR_INDEX  1024
+
+static int get_bitmap_index(uint_t msr)
+{
+    if( (msr >= LOW_MSR_START) && msr <= LOW_MSR_END) {
+        return LOW_MSR_INDEX + msr;
+    } else if (( msr >= HIGH_MSR_START ) && (msr <= HIGH_MSR_END)) {
+        return HIGH_MSR_INDEX + (msr - HIGH_MSR_START);
+    } else {
+        PrintError("MSR out of range: 0x%x\n", msr);
+        return -1;
+    }
+}
 
 /* Same as SVM */
 static int update_map(struct guest_info * info, uint_t msr, int hook_reads, int hook_writes) {
 
-#if 0
     int index = get_bitmap_index(msr);
-    uint_t major = index / 4;
-    uint_t minor = (index % 4) * 2;
-    uchar_t val = 0;
-    uchar_t mask = 0x3;
+    uint_t major = index / 8;
+    uint_t minor = (index % 8);
+    uchar_t mask = 0x1;
+    uint8_t read_val = (hook_reads) ? 0x1 : 0x0;
+    uint8_t write_val = (hook_writes) ? 0x1 : 0x0;
     uint8_t * bitmap = (uint8_t *)(info->msr_map.arch_data);
 
-    if (hook_reads) {
-	val |= 0x1;
-    } 
-    
-    if (hook_writes) {
-	val |= 0x2;
-    }
 
     *(bitmap + major) &= ~(mask << minor);
-    *(bitmap + major) |= (val << minor);
-#endif
+    *(bitmap + major) |= (read_val << minor);
+    
+
+    *(bitmap + 2048 + major) &= ~(mask << minor);
+    *(bitmap + 2048 + major) |= (write_val << minor);
     
     return 0;
 }
 
 int v3_init_vmx_msr_map(struct guest_info * info) {
-   struct v3_msr_map * msr_map = &(info->msr_map);
+    struct v3_msr_map * msr_map = &(info->msr_map);
 
-   msr_map->update_map = update_map;
-   
-   msr_map->arch_data = V3_VAddr(V3_AllocPages(1));
-   memset(msr_map->arch_data, 0, PAGE_SIZE_4KB);
-
-   return 0;
+    msr_map->update_map = update_map;
+    
+    msr_map->arch_data = V3_VAddr(V3_AllocPages(1));
+    memset(msr_map->arch_data, 0, PAGE_SIZE_4KB);
+    
+    v3_refresh_msr_map(info);
+    
+    return 0;
 }