Xen patches

- Avoid mmap race involving Xen's mapcache
 - Fix xenforeignmemory_resource leak at exit
 - Fix xen-block to choose a driver for the disk image when created via
   xenstore.
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Merge remote-tracking branch 'remotes/aperard/tags/pull-xen-20210510' into staging

Xen patches

- Avoid mmap race involving Xen's mapcache
- Fix xenforeignmemory_resource leak at exit
- Fix xen-block to choose a driver for the disk image when created via
  xenstore.

# gpg: Signature made Mon 10 May 2021 13:49:40 BST
# gpg:                using RSA key F80C006308E22CFD8A92E7980CF5572FD7FB55AF
# gpg: Good signature from "Anthony PERARD <anthony.perard@gmail.com>" [unknown]
# gpg:                 aka "Anthony PERARD <anthony.perard@citrix.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 5379 2F71 024C 600F 778A  7161 D8D5 7199 DF83 42C8
#      Subkey fingerprint: F80C 0063 08E2 2CFD 8A92  E798 0CF5 572F D7FB 55AF

* remotes/aperard/tags/pull-xen-20210510:
  xen-block: Use specific blockdev driver
  xen: Free xenforeignmemory_resource at exit
  xen-mapcache: avoid a race on memory map while using MAP_FIXED

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2021-05-12 08:54:49 +01:00
commit 4f24f774ba
4 changed files with 39 additions and 5 deletions

View file

@ -134,6 +134,12 @@ static inline xenforeignmemory_resource_handle *xenforeignmemory_map_resource(
return NULL;
}
static inline int xenforeignmemory_unmap_resource(
xenforeignmemory_handle *fmem, xenforeignmemory_resource_handle *fres)
{
return 0;
}
#endif /* CONFIG_XEN_CTRL_INTERFACE_VERSION < 41100 */
#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 41000