search for: qemu_ram_alloc

The existing stdvga driver from xen-unstable tools/ioemu/hw/vga* does not save the emulated VGA memory contents. The symptoms include video malfunction after restore, including black screen (which can often be fixed by asking the guest to redraw) but also missing font setup etc. The attached patch fixes this by saving the entire VGA memory buffer, just like the Xen ioemu Cirrus emulator does. I

...gnal is generated. > >> > >>     I believe the qemu is trying to vist vram in this moment. This > >> code seems no problem, and I will continue to find the root cause. > >> > > > > The vram is allocated by qemu, see hw/vga.c:vga_common_init. > > qemu_ram_alloc under xen ends up calling xen_ram_alloc that calls > > xc_domain_populate_physmap_exact. > > xc_domain_populate_physmap_exact is the hypercall that should ask Xen to > > add the missing vram pages in the guest. Maybe this hypercall is failing > > in your case? > > &g...

...>> >> >>     I believe the qemu is trying to vist vram in this moment. This >> >> code seems no problem, and I will continue to find the root cause. >> >> >> > >> > The vram is allocated by qemu, see hw/vga.c:vga_common_init. >> > qemu_ram_alloc under xen ends up calling xen_ram_alloc that calls >> > xc_domain_populate_physmap_exact. >> > xc_domain_populate_physmap_exact is the hypercall that should ask Xen to >> > add the missing vram pages in the guest. Maybe this hypercall is failing >> > in your case...

Hi xen developers, Does any of you know how to disable the cirrus-vga emulation for hvm in xen? I have been trying to disable that from the source codes, but even with that, I still see a VGA controller when I boot up my guest domain. In particular, I would like to do this because I am passing through a graphics card to my guest domain using direct pass through. Thanks, - billy

Hi all, this is the long awaited patch series to add xen device model support in qemu; the main author is Anthony Perard. Developing this series we tried to come up with the cleanest possible solution from the qemu point of view, limiting the amount of changes to common code as much as possible. The end result still requires a couple of hooks in piix_pci but overall the impact should be very