Commit 213945e4 authored by David Gibson's avatar David Gibson Committed by Juan Quintela
Browse files

savevm: Add VMSTATE_FLOAT64 helpers 



The current savevm code includes VMSTATE helpers for a number of commonly
used data types, but not for the float64 type used by the internal floating
point emulation code.  This patch fixes the deficiency.

Signed-off-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: default avatarJuan Quintela <quintela@redhat.com>
parent d58f5598

include/migration/vmstate.h

+15 −0
Original line number Diff line number Diff line
@@ -157,6 +157,8 @@ extern const VMStateInfo vmstate_info_uint16; 
extern const VMStateInfo vmstate_info_uint32;

extern const VMStateInfo vmstate_info_uint64;



extern const VMStateInfo vmstate_info_float64;



extern const VMStateInfo vmstate_info_timer;

extern const VMStateInfo vmstate_info_buffer;

extern const VMStateInfo vmstate_info_unused_buffer;
@@ -543,6 +545,13 @@ extern const VMStateInfo vmstate_info_bitmap; 
#define VMSTATE_UINT32_TEST(_f, _s, _t)                                  \

    VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint32, uint32_t)





#define VMSTATE_FLOAT64_V(_f, _s, _v)                                 \

    VMSTATE_SINGLE(_f, _s, _v, vmstate_info_float64, float64)



#define VMSTATE_FLOAT64(_f, _s)                                       \

    VMSTATE_FLOAT64_V(_f, _s, 0)



#define VMSTATE_TIMER_TEST(_f, _s, _test)                             \

    VMSTATE_POINTER_TEST(_f, _s, _test, vmstate_info_timer, QEMUTimer *)
@@ -609,6 +618,12 @@ extern const VMStateInfo vmstate_info_bitmap; 
#define VMSTATE_INT64_ARRAY(_f, _s, _n)                               \

    VMSTATE_INT64_ARRAY_V(_f, _s, _n, 0)



#define VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, _v)                       \

    VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_float64, float64)



#define VMSTATE_FLOAT64_ARRAY(_f, _s, _n)                             \

    VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, 0)



#define VMSTATE_BUFFER_V(_f, _s, _v)                                  \

    VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, 0, sizeof(typeof_field(_s, _f)))

savevm.c

+23 −0
Original line number Diff line number Diff line
@@ -1133,6 +1133,29 @@ const VMStateInfo vmstate_info_uint16_equal = { 
    .put  = put_uint16,

};



/* floating point */



static int get_float64(QEMUFile *f, void *pv, size_t size)

{

    float64 *v = pv;



    *v = make_float64(qemu_get_be64(f));

    return 0;

}



static void put_float64(QEMUFile *f, void *pv, size_t size)

{

    uint64_t *v = pv;



    qemu_put_be64(f, float64_val(*v));

}



const VMStateInfo vmstate_info_float64 = {

    .name = "float64",

    .get  = get_float64,

    .put  = put_float64,

};



/* timers  */



static int get_timer(QEMUFile *f, void *pv, size_t size)