On Fri, May 25, 2018 at 10:15:23PM +0100, Mark Cave-Ayland wrote: > The Linux sandalfoot zImage has an initialisation process which resets the > VGA controller by setting all the BAR addresses to zero to access the VGA > ioports at their legacy addresses. > > Unfortunately setting the framebuffer BAR to address 0 makes the framebuffer > memory overlap the internal VGA memory causing accesses to fail, and so > prevents the kernel from switching successfully to text mode. > > Since OpenHackWare configures the framebuffer BAR address outside of the > legacy > VGA internal memory space, remove pci_allow_0_address from the 40p machine > class > which causes the BAR reprogramming to zero to fail and so the VGA internal > memory can be accessed correctly again. > > Signed-off-by: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk>
Applied, thanks. > --- > hw/ppc/prep.c | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/hw/ppc/prep.c b/hw/ppc/prep.c > index be4db6a687..5ed0bcd862 100644 > --- a/hw/ppc/prep.c > +++ b/hw/ppc/prep.c > @@ -884,7 +884,6 @@ static void ibm_40p_machine_init(MachineClass *mc) > mc->desc = "IBM RS/6000 7020 (40p)", > mc->init = ibm_40p_init; > mc->max_cpus = 1; > - mc->pci_allow_0_address = true; > mc->default_ram_size = 128 * M_BYTE; > mc->block_default_type = IF_SCSI; > mc->default_boot_order = "c"; -- David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_ | _way_ _around_! http://www.ozlabs.org/~dgibson
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