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Re: [Xen-devel] Frame buffer mmap not working in pvops dom0
> That looks like the VM_IO flag (_PAGE_IOMAP on the PTE) is not set somewhere.
> Do you have an idea what piece of kernel code gets triggered when QEMU does
> 'mmap' on the /dev/fb0?
> On my machine where I use KMS/DRM it ends up calling 'ttm_fb_mmap'. But
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