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[V2,0/2] Do not try to access unaccepted memory

Message ID 20230911112114.91323-1-adrian.hunter@intel.com
Headers show
Series Do not try to access unaccepted memory | expand

Message

Adrian Hunter Sept. 11, 2023, 11:21 a.m. UTC 
Hi

Support for unaccepted memory was added recently, refer commit
dcdfdd40fa82 ("mm: Add support for unaccepted memory"), whereby
a virtual machine may need to accept memory before it can be used.

Plug a few gaps where RAM is exposed without checking if it is
unaccepted memory.


Changes in V2:

      efi/unaccepted: Do not let /proc/vmcore try to access unaccepted memory
          Change patch subject and commit message
          Use vmcore_cb->.pfn_is_ram() instead of changing vmcore.c

      proc/kcore: Do not try to access unaccepted memory
          Change patch subject and commit message
          Do not open code pfn_is_unaccepted_memory()

      /dev/mem: Do not map unaccepted memory
          Patch dropped because it is not required


Adrian Hunter (2):
      efi/unaccepted: Do not let /proc/vmcore try to access unaccepted memory
      proc/kcore: Do not try to access unaccepted memory

 drivers/firmware/efi/unaccepted_memory.c | 20 ++++++++++++++++++++
 fs/proc/kcore.c                          |  3 ++-
 include/linux/mm.h                       |  7 +++++++
 3 files changed, 29 insertions(+), 1 deletion(-)


Regards
Adrian