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dump: add API to write dump pages

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functions are used to write page to vmcore. vmcore is written page by page.
page desc is used to store the information of a page, including a page's size,
offset, compression format, etc.

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
This commit is contained in:
qiaonuohan 2014-02-18 14:11:35 +08:00 • committed by Luiz Capitulino
parent 64cfba6a47
commit d12f57ec66
2 changed files with 238 additions and 0 deletions
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7
include/sysemu/dump.h
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@ -151,6 +151,13 @@ typedef struct DataCache {
off_t offset; /* offset of the file */
} DataCache;
typedef struct QEMU_PACKED PageDescriptor {
uint64_t offset; /* the offset of the page data*/
uint32_t size; /* the size of this dump page */
uint32_t flags; /* flags */
uint64_t page_flags; /* page flags */
} PageDescriptor;
struct GuestPhysBlockList; /* memory_mapping.h */
int cpu_get_dump_info(ArchDumpInfo *info,
const struct GuestPhysBlockList *guest_phys_blocks);