Split asm-x86/hvm/support into arch generic part and x86 specific part.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>

1 files changed, 1 insertions, 138 deletions

diff --git a/xen/include/asm-x86/hvm/support.h b/xen/include/asm-x86/hvm/support.h
index 62fd6fa04e..d24505989c 100644
--- a/xen/include/asm-x86/hvm/support.h
+++ b/xen/include/asm-x86/hvm/support.h
@@ -22,6 +22,7 @@
 #define __ASM_X86_HVM_SUPPORT_H__
 
 #include <xen/sched.h>
+#include <xen/hvm/save.h>
 #include <asm/types.h>
 #include <asm/regs.h>
 #include <asm/processor.h>
@@ -76,144 +77,6 @@ extern unsigned int opt_hvm_debug_level;
 #define HVM_DBG_LOG(level, _f, _a...)
 #endif
 
-/*
- * Save/restore support 
- */
-
-/* Marshalling and unmarshalling uses a buffer with size and cursor. */
-typedef struct hvm_domain_context {
-    uint32_t cur;
-    uint32_t size;
-    uint8_t *data;
-} hvm_domain_context_t;
-
-/* Marshalling an entry: check space and fill in the header */
-static inline int _hvm_init_entry(struct hvm_domain_context *h,
-                                  uint16_t tc, uint16_t inst, uint32_t len)
-{
-    struct hvm_save_descriptor *d 
-        = (struct hvm_save_descriptor *)&h->data[h->cur];
-    if ( h->size - h->cur < len + sizeof (*d) )
-    {
-        gdprintk(XENLOG_WARNING,
-                 "HVM save: no room for %"PRIu32" + %u bytes "
-                 "for typecode %"PRIu16"\n",
-                 len, (unsigned) sizeof (*d), tc);
-        return -1;
-    }
-    d->typecode = tc;
-    d->instance = inst;
-    d->length = len;
-    h->cur += sizeof (*d);
-    return 0;
-}
-
-/* Marshalling: copy the contents in a type-safe way */
-#define _hvm_write_entry(_x, _h, _src) do {                     \
-    *(HVM_SAVE_TYPE(_x) *)(&(_h)->data[(_h)->cur]) = *(_src);   \
-    (_h)->cur += HVM_SAVE_LENGTH(_x);                           \
-} while (0)
-
-/* Marshalling: init and copy; evaluates to zero on success */
-#define hvm_save_entry(_x, _inst, _h, _src) ({          \
-    int r;                                              \
-    r = _hvm_init_entry((_h), HVM_SAVE_CODE(_x),        \
-                        (_inst), HVM_SAVE_LENGTH(_x));  \
-    if ( r == 0 )                                       \
-        _hvm_write_entry(_x, (_h), (_src));             \
-    r; })
-
-/* Unmarshalling: test an entry's size and typecode and record the instance */
-static inline int _hvm_check_entry(struct hvm_domain_context *h, 
-                                   uint16_t type, uint32_t len)
-{
-    struct hvm_save_descriptor *d 
-        = (struct hvm_save_descriptor *)&h->data[h->cur];
-    if ( len + sizeof (*d) > h->size - h->cur)
-    {
-        gdprintk(XENLOG_WARNING, 
-                 "HVM restore: not enough data left to read %u bytes "
-                 "for type %u\n", len, type);
-        return -1;
-    }    
-    if ( type != d->typecode || len != d->length )
-    {
-        gdprintk(XENLOG_WARNING, 
-                 "HVM restore mismatch: expected type %u length %u, "
-                 "saw type %u length %u\n", type, len, d->typecode, d->length);
-        return -1;
-    }
-    h->cur += sizeof (*d);
-    return 0;
-}
-
-/* Unmarshalling: copy the contents in a type-safe way */
-#define _hvm_read_entry(_x, _h, _dst) do {                      \
-    *(_dst) = *(HVM_SAVE_TYPE(_x) *) (&(_h)->data[(_h)->cur]);  \
-    (_h)->cur += HVM_SAVE_LENGTH(_x);                           \
-} while (0)
-
-/* Unmarshalling: check, then copy. Evaluates to zero on success. */
-#define hvm_load_entry(_x, _h, _dst) ({                                 \
-    int r;                                                              \
-    r = _hvm_check_entry((_h), HVM_SAVE_CODE(_x), HVM_SAVE_LENGTH(_x)); \
-    if ( r == 0 )                                                       \
-        _hvm_read_entry(_x, (_h), (_dst));                              \
-    r; })
-
-/* Unmarshalling: what is the instance ID of the next entry? */
-static inline uint16_t hvm_load_instance(struct hvm_domain_context *h)
-{
-    struct hvm_save_descriptor *d 
-        = (struct hvm_save_descriptor *)&h->data[h->cur];
-    return d->instance;
-}
-
-/* Handler types for different types of save-file entry. 
- * The save handler may save multiple instances of a type into the buffer;
- * the load handler will be called once for each instance found when
- * restoring.  Both return non-zero on error. */
-typedef int (*hvm_save_handler) (struct domain *d, 
-                                 hvm_domain_context_t *h);
-typedef int (*hvm_load_handler) (struct domain *d,
-                                 hvm_domain_context_t *h);
-
-/* Init-time function to declare a pair of handlers for a type,
- * and the maximum buffer space needed to save this type of state */
-void hvm_register_savevm(uint16_t typecode,
-                         const char *name, 
-                         hvm_save_handler save_state,
-                         hvm_load_handler load_state,
-                         size_t size, int kind);
-
-/* The space needed for saving can be per-domain or per-vcpu: */
-#define HVMSR_PER_DOM  0
-#define HVMSR_PER_VCPU 1
-
-/* Syntactic sugar around that function: specify the max number of
- * saves, and this calculates the size of buffer needed */
-#define HVM_REGISTER_SAVE_RESTORE(_x, _save, _load, _num, _k)             \
-static int __hvm_register_##_x##_save_and_restore(void)                   \
-{                                                                         \
-    hvm_register_savevm(HVM_SAVE_CODE(_x),                                \
-                        #_x,                                              \
-                        &_save,                                           \
-                        &_load,                                           \
-                        (_num) * (HVM_SAVE_LENGTH(_x)                     \
-                                  + sizeof (struct hvm_save_descriptor)), \
-                        _k);                                              \
-    return 0;                                                             \
-}                                                                         \
-__initcall(__hvm_register_##_x##_save_and_restore);
-
-
-/* Entry points for saving and restoring HVM domain state */
-size_t hvm_save_size(struct domain *d);
-int hvm_save(struct domain *d, hvm_domain_context_t *h);
-int hvm_load(struct domain *d, hvm_domain_context_t *h);
-
-/* End of save/restore */
-
 extern char hvm_io_bitmap[];
 
 void hvm_enable(struct hvm_function_table *);