Re: [Qemu-devel] [PATCH] Fix wrong region_offset when overlaying a page with another

["Andreas Färber" <afaerber@suse.de>]

Am 01.01.2012 18:23, schrieb Avi Kivity:
> cpu_register_physical_memory_log() does not update region_offset
> if a page was previously registered for the same address.  This
> could cause mmio accesses going to the wrong place, by using the
> old region_offset.
> 
> Signed-off-by: Avi Kivity <avi@redhat.com>

Line numbers don't match master ;) but applies cleanly and looks good.

Acked-by: Andreas Färber <afaerber@suse.de>

Andreas

>  exec.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/exec.c b/exec.c
> index 8a3f621..c366835 100644
> --- a/exec.c
> +++ b/exec.c
> @@ -2542,6 +2542,7 @@ void cpu_register_physical_memory_log(target_phys_addr_t start_addr,
>                  p->region_offset = 0;
>              } else {
>                  p->phys_offset = phys_offset;
> +                p->region_offset = region_offset;
>                  if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM ||
>                      (phys_offset & IO_MEM_ROMD))
>                      phys_offset += TARGET_PAGE_SIZE;

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