From: Marc MarĂ <mar...@redhat.com> Enable the fw_cfg DMA interface for all the x86 platforms.
Based on Gerd Hoffman's initial implementation. Signed-off-by: Marc MarĂ <mar...@redhat.com> Reviewed-by: Laszlo Ersek <ler...@redhat.com> Signed-off-by: Gerd Hoffmann <kra...@redhat.com> --- hw/i386/pc.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 682867a..b25a872 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -752,14 +752,15 @@ static void pc_build_smbios(FWCfgState *fw_cfg) } } -static FWCfgState *bochs_bios_init(void) +static FWCfgState *bochs_bios_init(AddressSpace *as) { FWCfgState *fw_cfg; uint64_t *numa_fw_cfg; int i, j; unsigned int apic_id_limit = pc_apic_id_limit(max_cpus); - fw_cfg = fw_cfg_init_io(BIOS_CFG_IOPORT); + fw_cfg = fw_cfg_init_io_dma(BIOS_CFG_IOPORT, BIOS_CFG_IOPORT + 4, as); + /* FW_CFG_MAX_CPUS is a bit confusing/problematic on x86: * * SeaBIOS needs FW_CFG_MAX_CPUS for CPU hotplug, but the CPU hotplug @@ -1393,7 +1394,8 @@ FWCfgState *pc_memory_init(PCMachineState *pcms, option_rom_mr, 1); - fw_cfg = bochs_bios_init(); + fw_cfg = bochs_bios_init(&address_space_memory); + rom_set_fw(fw_cfg); if (guest_info->has_reserved_memory && pcms->hotplug_memory.base) { -- 1.8.3.1