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Xen 2016/09/05

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Merge remote-tracking branch 'remotes/sstabellini/tags/xen-20160905' into staging

Xen 2016/09/05

# gpg: Signature made Mon 05 Sep 2016 19:59:47 BST
# gpg:                using RSA key 0x894F8F4870E1AE90
# gpg: Good signature from "Stefano Stabellini <stefano.stabellini@eu.citrix.com>"
# Primary key fingerprint: D04E 33AB A51F 67BA 07D3  0AEA 894F 8F48 70E1 AE90

* remotes/sstabellini/tags/xen-20160905:
  xen: use native disk xenbus protocol if possible

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2016-09-06 11:43:18 +01:00
commit 1fd66154fd
1 changed files with 10 additions and 8 deletions
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18
hw/block/xen_disk.c
View File

@ -976,14 +976,16 @@ static int blk_connect(struct XenDevice *xendev)
blkdev->feature_persistent = !!pers;
}
blkdev->protocol = BLKIF_PROTOCOL_NATIVE;
if (blkdev->xendev.protocol) {
if (strcmp(blkdev->xendev.protocol, XEN_IO_PROTO_ABI_X86_32) == 0) {
blkdev->protocol = BLKIF_PROTOCOL_X86_32;
}
if (strcmp(blkdev->xendev.protocol, XEN_IO_PROTO_ABI_X86_64) == 0) {
blkdev->protocol = BLKIF_PROTOCOL_X86_64;
}
if (!blkdev->xendev.protocol) {
blkdev->protocol = BLKIF_PROTOCOL_NATIVE;
} else if (strcmp(blkdev->xendev.protocol, XEN_IO_PROTO_ABI_NATIVE) == 0) {
blkdev->protocol = BLKIF_PROTOCOL_NATIVE;
} else if (strcmp(blkdev->xendev.protocol, XEN_IO_PROTO_ABI_X86_32) == 0) {
blkdev->protocol = BLKIF_PROTOCOL_X86_32;
} else if (strcmp(blkdev->xendev.protocol, XEN_IO_PROTO_ABI_X86_64) == 0) {
blkdev->protocol = BLKIF_PROTOCOL_X86_64;
} else {
blkdev->protocol = BLKIF_PROTOCOL_NATIVE;
}
blkdev->sring = xengnttab_map_grant_ref(blkdev->xendev.gnttabdev,