[v2,0/4] x86/mm: miscellaneous fixes

Message

Roger Pau Monné Nov. 6, 2024, 12:29 p.m. UTC

Hello,

The attempt to fix destroy_xen_mappings() so that L2 tables are
consistently freed uncovered some errors in the memory management code.
The following series attempts to fix them.

All patches except for 4/4 are new in v2, and 4/4 has no change from v1,
hence kept Jan's Reviewed-by tag in 4/4.

Thanks, Roger.

Roger Pau Monne (4):
  x86/mm: introduce helpers to detect super page alignment
  x86/mm: special case super page alignment detection for INVALID_MFN
  x86/setup: remove bootstrap_map_addr() usage of destroy_xen_mappings()
  x86/mm: ensure L2 is always freed if empty

 xen/arch/x86/include/asm/page.h |  7 +++++++
 xen/arch/x86/mm.c               | 13 ++++---------
 xen/arch/x86/setup.c            |  4 +++-
 3 files changed, 14 insertions(+), 10 deletions(-)