On 31/12/19 19:32, Philippe Mathieu-Daudé wrote: > Only the PC-based machines use the fw_cfg device. In particular, > the MicroVM machine does not use it. Only compile/link it when > machines require it. > > Signed-off-by: Philippe Mathieu-Daudé <phi...@redhat.com> > --- > Cc: Sergio Lopez <s...@redhat.com> > --- > hw/i386/Makefile.objs | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/hw/i386/Makefile.objs b/hw/i386/Makefile.objs > index 6ebb6d0cf0..48f2693546 100644 > --- a/hw/i386/Makefile.objs > +++ b/hw/i386/Makefile.objs > @@ -5,7 +5,7 @@ obj-$(CONFIG_PC) += pc.o pc_sysfw.o > obj-$(CONFIG_I440FX) += pc_piix.o > obj-$(CONFIG_Q35) += pc_q35.o > obj-$(CONFIG_MICROVM) += microvm.o > -obj-y += fw_cfg.o > +obj-$(CONFIG_PC) += fw_cfg.o > obj-$(CONFIG_X86_IOMMU) += x86-iommu.o > obj-$(CONFIG_VTD) += intel_iommu.o > obj-$(CONFIG_AMD_IOMMU) += amd_iommu.o >
It does use it, it calls fw_cfg_init_io_dma. Paolo
