Fix to MSR save/restore handling to avoid VMX ABORT errors

[palacios.git] / palacios / include / palacios / vmx.h

diff --git a/palacios/include/palacios/vmx.h b/palacios/include/palacios/vmx.h
index 06e4df2..4384b13 100644 (file)
--- a/palacios/include/palacios/vmx.h
+++ b/palacios/include/palacios/vmx.h
@@ -188,6 +188,29 @@ struct vmcs_host_state {
 };
 
 
+struct vmcs_msr_save_area {
+    union {
+       struct vmcs_msr_entry guest_msrs[4];
+       struct {
+           struct vmcs_msr_entry guest_star;
+           struct vmcs_msr_entry guest_lstar;
+           struct vmcs_msr_entry guest_fmask;
+           struct vmcs_msr_entry guest_kern_gs;
+       } __attribute__((packed));
+    } __attribute__((packed));
+
+    union {
+       struct vmcs_msr_entry host_msrs[4];
+       struct {
+           struct vmcs_msr_entry host_star;
+           struct vmcs_msr_entry host_lstar;
+           struct vmcs_msr_entry host_fmask;
+           struct vmcs_msr_entry host_kern_gs;
+       } __attribute__((packed));
+    } __attribute__((packed)); 
+
+} __attribute__((packed)); 
+
 
 struct vmx_data {
     vmx_state_t state;
@@ -210,7 +233,8 @@ struct vmx_data {
 
     struct vmx_exception_bitmap excp_bmap;
 
-    void * msr_area;
+    addr_t msr_area_paddr;
+    struct vmcs_msr_save_area * msr_area;
 };
 
 int v3_is_vmx_capable();