Enhanced user-space memory interface, allowing dynamic kernel-allocations

[palacios.git] / linux_usr / v3_ctrl.h

diff --git a/linux_usr/v3_ctrl.h b/linux_usr/v3_ctrl.h
index e81968c..28a5e19 100644 (file)
--- a/linux_usr/v3_ctrl.h
+++ b/linux_usr/v3_ctrl.h
@@ -57,9 +57,17 @@ struct v3_guest_img {
 } __attribute__((packed));
 
 
+typedef enum { PREALLOCATED=0,          // user space-allocated (e.g. hot remove)
+              REQUESTED,               // kernel will attempt allocation (anywhere)
+              REQUESTED32,             // kernel will attempt allocation (<4GB)
+} v3_mem_region_type_t;
+
 struct v3_mem_region {
-    unsigned long long base_addr;
-    unsigned long long num_pages;
+    v3_mem_region_type_t type;         // 
+    int                  node;         // numa node for REQUESTED (-1 = any)
+    unsigned long long   base_addr;    // region start (hpa) for PREALLOCATED
+    unsigned long long   num_pages;    // size for PREALLOCATED or request size for REQUESTED
+                                       // should be power of 2 and > V3_CONFIG_MEM_BLOCK
 } __attribute__((packed));
 
 
@@ -68,7 +76,6 @@ struct v3_core_move_cmd{
     unsigned short pcore_id;
 } __attribute__((packed));
 
-
 struct v3_debug_cmd {
     unsigned int core; 
     unsigned int cmd;
@@ -77,6 +84,12 @@ struct v3_debug_cmd {
 struct v3_chkpt_info {
     char store[128];
     char url[256]; /* This might need to be bigger... */
+    unsigned long long opts;
+#define V3_CHKPT_OPT_NONE         0
+#define V3_CHKPT_OPT_SKIP_MEM     1  // don't write memory to store
+#define V3_CHKPT_OPT_SKIP_DEVS    2  // don't write devices to store
+#define V3_CHKPT_OPT_SKIP_CORES   4  // don't write core arch ind data to store
+#define V3_CHKPT_OPT_SKIP_ARCHDEP 8  // don't write core arch dep data to store
 } __attribute__((packed));