[Qemu-devel] [PATCH] User mode: Handle x86_64 vsyscall

[Laurent Desnogues]

Hello,

the attached patch implements two of the three x86_64 vsyscall's.
Also attached is a test that demonstrates the issue and hopefully
the fix.

Note there is a trick in there:  since vsyscall functions are in high
memory, page_l1_map will return NULL resulting in an abort when
calling tb_link_phys in tb_gen_code.  Also perhaps not very nice
is the way a ret is simulated in cpu_loop.

I didn't implement vgetcpu.


Laurent

Signed-off-by: Laurent Desnogues <address@hidden>

vsyscall.patch
Description: Binary data

check-vsyscall.c
Description: Text Data