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X-Received-From: 2607:f8b0:4864:20::344 Subject: Re: [Qemu-devel] [PATCH v7 1/2] hw/arm: Add arm SBSA reference machine, skeleton part X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Hongbo Zhang , Radoslaw Biernacki , Ard Biesheuvel , QEMU Developers , Leif Lindholm , Eric Auger , qemu-arm Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Thu, 9 May 2019 at 15:27, Igor Mammedov wrote: > It should be possible to add nvdimm and memory hotplug later. > (I don't see big issues here, as long as it would be possible > to carve out continuous range in address space for it. > > Considering ABI to guest, one could reuse QEMU's notification/enumeration > code for that or implement their own. > > PS: > However there will be the same issues that we've had with Seabios when > ACPI tables were generated there (i.e. cease-less invention of interfaces > to to pass information from QEMU to firmware). But if I recall correctly, > it seems that it's intentional design decision for this board, > where user supplies/builds in firmware a board description (acpi/dt/...) > manually. This board is supposed to be very close to real hardware, where the firmware knows what it's running on and very little is configurable from the command line, yes. thanks -- PMM