[Qemu-devel] [PATCH 0/8] Add missed read callback for some memory region

[Li Qiang]

From: Li Qiang <address@hidden>

This patch set try to add the missed read callback for memory region.
Without this patchset, when the guest reads the IO port/memory, it will
cause an NULL-dereference issue. For example, add 
"-device isa-debug-exit" to command, then read the 0x501 port, it causes a 
SIGSEGV.

The only exception is 'readonly_mem_ops' as its read is directly 
access the underlying host ram as the comments says.

These missed read callback is mostly pointed by Laszlo Ersek.



Li Qiang (8):
  fw_cfg_mem: add read memory region callback
  hw: debugexit: add read callback
  hw: hyperv_testdev: add read callback
  hw: pc-testdev: add read memory region callback
  hw: designware: add read memory region callback
  hw: pvrdma: add read memory region callback
  hw: sun4c: add read memory region callback
  exec: add read callback for notdirty memory region

 exec.c                    |  7 +++++++
 hw/misc/debugexit.c       |  6 ++++++
 hw/misc/hyperv_testdev.c  | 10 ++++++++--
 hw/misc/pc-testdev.c      | 20 ++++++++++++++++----
 hw/nvram/fw_cfg.c         |  6 ++++++
 hw/pci-host/designware.c  |  7 +++++++
 hw/rdma/vmw/pvrdma_main.c |  6 ++++++
 hw/sparc64/sun4u.c        |  6 ++++++
 8 files changed, 62 insertions(+), 6 deletions(-)

-- 
2.17.1