From e61a1e0a1147018d26f894c17f56f08117c0ba7b Mon Sep 17 00:00:00 2001 From: Juan Quintela Date: Wed, 2 Dec 2009 12:36:38 +0100 Subject: vmstate: Add support for VBUFFERS Support for buffer that are pointed by a pointer (i.e. not embedded) where the size that we want to use is a field in the state. We also need a new place to store where to start in the middle of the buffer, as now it is a pointer, not the offset of the 1st field. Signed-off-by: Juan Quintela Signed-off-by: Anthony Liguori --- hw/hw.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'hw/hw.h') diff --git a/hw/hw.h b/hw/hw.h index c3c0c9f..47fb12b 100644 --- a/hw/hw.h +++ b/hw/hw.h @@ -294,14 +294,17 @@ enum VMStateFlags { VMS_BUFFER = 0x020, /* static sized buffer */ VMS_ARRAY_OF_POINTER = 0x040, VMS_VARRAY_UINT16 = 0x080, /* Array with size in uint16_t field */ + VMS_VBUFFER = 0x100, /* Buffer with size in int32_t field */ }; typedef struct { const char *name; size_t offset; size_t size; + size_t start; int num; size_t num_offset; + size_t size_offset; const VMStateInfo *info; enum VMStateFlags flags; const VMStateDescription *vmsd; @@ -490,6 +493,17 @@ extern const VMStateInfo vmstate_info_unused_buffer; .offset = vmstate_offset_buffer(_state, _field) + _start, \ } +#define VMSTATE_VBUFFER(_field, _state, _version, _test, _start, _field_size) { \ + .name = (stringify(_field)), \ + .version_id = (_version), \ + .field_exists = (_test), \ + .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\ + .info = &vmstate_info_buffer, \ + .flags = VMS_VBUFFER|VMS_POINTER, \ + .offset = offsetof(_state, _field), \ + .start = (_start), \ +} + #define VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, _info, _size) { \ .name = (stringify(_field)), \ .version_id = (_version), \ @@ -683,6 +697,12 @@ extern const VMStateDescription vmstate_i2c_slave; #define VMSTATE_BUFFER_START_MIDDLE(_f, _s, _start) \ VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, _start, sizeof(typeof_field(_s, _f))) +#define VMSTATE_PARTIAL_VBUFFER(_f, _s, _size) \ + VMSTATE_VBUFFER(_f, _s, 0, NULL, 0, _size) + +#define VMSTATE_SUB_VBUFFER(_f, _s, _start, _size) \ + VMSTATE_VBUFFER(_f, _s, 0, NULL, _start, _size) + #define VMSTATE_BUFFER_TEST(_f, _s, _test) \ VMSTATE_STATIC_BUFFER(_f, _s, 0, _test, 0, sizeof(typeof_field(_s, _f))) -- cgit v1.1