update to the host OS interface to allow aligned page allocations

diff --git a/palacios/include/palacios/vmm.h b/palacios/include/palacios/vmm.h
index bf13c3f..f37ad83 100644 (file)
--- a/palacios/include/palacios/vmm.h
+++ b/palacios/include/palacios/vmm.h
@@ -67,14 +67,26 @@ struct guest_info;
 
 
 
-#define V3_AllocPages(num_pages)                               \
-    ({                                                         \
-       extern struct v3_os_hooks * os_hooks;                   \
-       void * ptr = 0;                                         \
-       if ((os_hooks) && (os_hooks)->allocate_pages) {         \
-           ptr = (os_hooks)->allocate_pages(num_pages);        \
-       }                                                       \
-       ptr;                                                    \
+/* 4KB-aligned */
+#define V3_AllocPages(num_pages)                                       \
+    ({                                                                 \
+       extern struct v3_os_hooks * os_hooks;                           \
+       void * ptr = 0;                                                 \
+       if ((os_hooks) && (os_hooks)->allocate_pages) {                 \
+           ptr = (os_hooks)->allocate_pages(num_pages,PAGE_SIZE_4KB);  \
+       }                                                               \
+       ptr;                                                            \
+    })
+
+
+#define V3_AllocAlignedPages(num_pages, align)                         \
+    ({                                                                 \
+       extern struct v3_os_hooks * os_hooks;                           \
+       void * ptr = 0;                                                 \
+       if ((os_hooks) && (os_hooks)->allocate_pages) {                 \
+           ptr = (os_hooks)->allocate_pages(num_pages,align);          \
+       }                                                               \
+       ptr;                                                            \
     })
 
 
@@ -239,7 +251,7 @@ struct v3_os_hooks {
     void (*print)(const char * format, ...)
        __attribute__ ((format (printf, 1, 2)));
   
-    void *(*allocate_pages)(int numPages);
+    void *(*allocate_pages)(int numPages, unsigned int alignment);
     void (*free_page)(void * page);
 
     void *(*malloc)(unsigned int size);
@@ -266,7 +278,7 @@ struct v3_os_hooks {
     unsigned int (*get_cpu)(void);
     void (*interrupt_cpu)(struct v3_vm_info * vm, int logical_cpu, int vector);
     void (*call_on_cpu)(int logical_cpu, void (*fn)(void * arg), void * arg);
-    void * (*start_thread_on_cpu)(int logical_cpu, int (*fn)(void * arg), void * arg, char * thread_name);
+    void * (*start_thread_on_cpu)(int cpu_id, int (*fn)(void * arg), void * arg, char * thread_name);
 
 };