Re: [Qemu-devel] [PATCH v2 2/4] hw/i386: Add an Intel MPTable generator

[Gerd Hoffmann]

On Tue, Jul 02, 2019 at 10:37:11AM +0200, Sergio Lopez wrote:
> 
> Gerd Hoffmann <address@hidden> writes:
> 
> > On Mon, Jul 01, 2019 at 04:47:03PM +0200, Sergio Lopez wrote:
> >> Add a helper function (mptable_generate) for generating an Intel
> >> MPTable according to version 1.4 of the specification.
> >> 
> >> This is needed for the microvm machine type implementation.
> >
> > Firmware should do this IMHO (qboot or seabios).
> 
> Microvm does a number of things that are typically done by the firmware,
> as a way to reduce boot time.

Whenever the firmware or qemu does the initialization shouldn't make
that much of a difference.  Firmware needs to fetch stuff from fw_cfg,
which shouldn't be much overhead when using dma mode.

cheers,
  Gerd