X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmx_msr.c;h=ae643318fc1cb7bdfe9d7a3277a63a21707175ec;hb=bcab692b40b809c628eb365c199ffd3c757a6cc7;hp=f470c37d90198fd4e26aae7e406d1f55cc8e1d23;hpb=5e5c8ee949fa45116d58b904fc11aab082f61607;p=palacios.git

diff --git a/palacios/src/palacios/vmx_msr.c b/palacios/src/palacios/vmx_msr.c
index f470c37..ae64331 100644
--- a/palacios/src/palacios/vmx_msr.c
+++ b/palacios/src/palacios/vmx_msr.c
@@ -51,6 +51,12 @@ static int update_map(struct v3_vm_info * vm, uint_t msr, int hook_reads, int ho
     uint8_t write_val = (hook_writes) ? 0x1 : 0x0;
     uint8_t * bitmap = (uint8_t *)(vm->msr_map.arch_data);
 
+    if (index == -1) {
+	//	0rintError("Error updating MSR Map failed bitmap index for (0x%x)\n", msr);
+	// MSRs not in the bitmap covered range will always trigger exits, so we don't need to worry about them here.
+	return 0;
+    }
+
     *(bitmap + major) &= ~(mask << minor);
     *(bitmap + major) |= (read_val << minor);