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Andrew Cooper
7eaec00dd9
In a remus scenario, libxc will write a CHECKPOINT record, then hand ownership of the fd to libxl. Libxl then writes any records required and finishes with a CHECKPOINT_END record, then hands ownership of the fd back to libxc. Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: Ian Campbell <Ian.Campbell@citrix.com> CC: Ian Jackson <Ian.Jackson@eu.citrix.com> CC: Wei Liu <wei.liu2@citrix.com>
59 lines
1.3 KiB
C
59 lines
1.3 KiB
C
#ifndef LIBXL__SR_STREAM_FORMAT_H
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#define LIBXL__SR_STREAM_FORMAT_H
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/*
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* C structures for the Migration v2 stream format.
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* See docs/specs/libxl-migration-stream.pandoc
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*/
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#include <stdint.h>
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typedef struct libxl__sr_hdr
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{
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uint64_t ident;
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uint32_t version;
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uint32_t options;
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} libxl__sr_hdr;
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#define RESTORE_STREAM_IDENT 0x4c6962786c466d74UL
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#define RESTORE_STREAM_VERSION 0x00000002U
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#define RESTORE_OPT_BIG_ENDIAN (1u << 0)
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#define RESTORE_OPT_LEGACY (1u << 1)
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typedef struct libxl__sr_rec_hdr
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{
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uint32_t type;
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uint32_t length;
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} libxl__sr_rec_hdr;
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/* All records must be aligned up to an 8 octet boundary */
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#define REC_ALIGN_ORDER 3U
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#define REC_TYPE_END 0x00000000U
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#define REC_TYPE_LIBXC_CONTEXT 0x00000001U
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#define REC_TYPE_XENSTORE_DATA 0x00000002U
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#define REC_TYPE_EMULATOR_CONTEXT 0x00000003U
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#define REC_TYPE_CHECKPOINT_END 0x00000004U
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typedef struct libxl__sr_emulator_hdr
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{
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uint32_t id;
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uint32_t index;
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} libxl__sr_emulator_hdr;
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#define EMULATOR_UNKNOWN 0x00000000U
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#define EMULATOR_QEMU_TRADITIONAL 0x00000001U
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#define EMULATOR_QEMU_UPSTREAM 0x00000002U
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#endif /* LIBXL__SR_STREAM_FORMAT_H */
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/*
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* Local variables:
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* mode: C
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* c-basic-offset: 4
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* indent-tabs-mode: nil
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* End:
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*/
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