[SeaBIOS] SeaBIOS NVMe support
Stefan Hajnoczi
stefanha at gmail.com
Thu Jan 28 18:12:16 CET 2016
On Tue, Jan 26, 2016 at 1:17 PM, vladislav.vovchenko at sk.com
<vladislav.vovchenko at sk.com> wrote:
> I wanna try to add NVMe support for SeaBIOS. But I have a problem: all
> addresses passed to NVMe ctrl (for example: queue addresses in ACQ and ASQ
> registers) are treated by controller as IO (not RAM).
>
> Qemu 2.5.0: file exec.c: address_space_rw(): function
> memory_access_is_direct() returns false, but should be true. Am I missing
> smth, or it’s special behaviour of SeaBios?
I don't understand your question. QEMU emulates the NVMe controller
so the hardware registers are not guest RAM. memory_region_is_ram()
should be false.
Can you explain what you are trying to do or post code?
Stefan
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