Commit 5641bf40 authored by Jeff Cody's avatar Jeff Cody Committed by Stefan Hajnoczi
Browse files

block: vhdx - add migration blocker 



This blocks migration for VHDX image files, until the
functionality can be supported.

Signed-off-by: default avatarJeff Cody <jcody@redhat.com>
Signed-off-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
parent 2fa9aa59

block/vhdx.c

+10 −0
Original line number Diff line number Diff line
@@ -20,6 +20,7 @@ 
#include "qemu/module.h"

#include "qemu/crc32c.h"

#include "block/vhdx.h"

#include "migration/migration.h"





/* Several metadata and region table data entries are identified by
@@ -159,6 +160,7 @@ typedef struct BDRVVHDXState { 
    VHDXParentLocatorHeader parent_header;

    VHDXParentLocatorEntry *parent_entries;



    Error *migration_blocker;

} BDRVVHDXState;



uint32_t vhdx_checksum_calc(uint32_t crc, uint8_t *buf, size_t size,
@@ -806,6 +808,12 @@ static int vhdx_open(BlockDriverState *bs, QDict *options, int flags, 


    /* TODO: differencing files, write */



    /* Disable migration when VHDX images are used */

    error_set(&s->migration_blocker,

            QERR_BLOCK_FORMAT_FEATURE_NOT_SUPPORTED,

            "vhdx", bs->device_name, "live migration");

    migrate_add_blocker(s->migration_blocker);



    return 0;

fail:

    qemu_vfree(s->headers[0]);
@@ -952,6 +960,8 @@ static void vhdx_close(BlockDriverState *bs) 
    qemu_vfree(s->headers[1]);

    qemu_vfree(s->bat);

    qemu_vfree(s->parent_entries);

    migrate_del_blocker(s->migration_blocker);

    error_free(s->migration_blocker);

}



static BlockDriver bdrv_vhdx = {