On 05/21/2012 10:24 AM, Benjamin Herrenschmidt wrote: > This adds a kvm-specific hypervisor call to the pseries machine > which allows to do what amounts to memmove, memcpy and xor over > regions of physical memory such as the framebuffer. > > This is the simplest way to get usable framebuffer speed from > SLOF since the framebuffer isn't mapped in the VRMA and so would > otherwise require an hcall per 8 bytes access. > > The performance is still not great but usable, and can be improved > with a more complex implementation of the hcall itself if needed. > > Signed-off-by: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> > --- > hw/spapr.h | 3 ++- > hw/spapr_hcall.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++++ > 2 files changed, 51 insertions(+), 1 deletion(-) > Shouldn't these be documented somewhere? -- error compiling committee.c: too many arguments to function -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
