[Qemu-devel] [PATCH 0/3] vhost-user fixes

[Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>]

The latest vhost-user changes changed the VHOST_SET_MEM_TABLE handling.
Now the memory regions are mapped from dev->mem. The BIOS is registered
at address 0xfffc0000 which is out of memory boundaries for guests with
less than 4G RAM. Calling qemu_get_ram_fd with this address causes abort()
in qemu_get_ram_block with "Bad ram offset".

To prevent this situation we introduce a new function to check if the address
maps to any RAMBlock - qemu_is_ram_block. This is used in VHOST_SET_MEM_TABLE
handling to revent the aborting call to qemu_get_ram_fd.

The related vhost-user qtest is also updated to reflect the changes in 
vhost-user message structures.

---

Nikolay Nikolaev (3):
      Add qemu_is_ram_block
      vhost-user: Fix VHOST_SET_MEM_TABLE processing
      qtest: Adapt vhost-user-test to latehs vhost-user changes


 exec.c                  |   15 +++++++++++++++
 hw/virtio/vhost-user.c  |    4 ++++
 include/exec/ram_addr.h |    1 +
 tests/vhost-user-test.c |   11 +++++++++--
 4 files changed, 29 insertions(+), 2 deletions(-)

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