[0/5] xen/gnttab: XSA-295 followup

Message

Andrew Cooper June 21, 2019, 9:36 a.m. UTC

This series came out of observations during the development of XSA-295.

It has been tested on x86, but only compile tested on arm.  It can be obtained
in git form from:

  http://xenbits.xen.org/gitweb/?p=people/andrewcoop/xen.git;a=shortlog;h=refs/heads/xen-grant-status

Andrew Cooper (5):
  xen/gnttab: Reduce complexity when reading grant_entry_header_t
  xen/gnttab: Reduce code volume when using union grant_combo
  arm/gnttab: Implement stub helpers as static inlines
  xen/gnttab: Refactor gnttab_clear_flag() to be gnttab_clear_flags()
  xen/gnttab: Fold adjacent calls to gnttab_clear_flags()

 xen/arch/arm/mm.c                 |  16 ----
 xen/common/grant_table.c          | 160 ++++++++++++++++++++------------------
 xen/include/asm-arm/grant_table.h |  17 +++-
 xen/include/asm-x86/grant_table.h |  11 +--
 4 files changed, 104 insertions(+), 100 deletions(-)