1#include <linux/kernel.h>
 2#include <linux/init.h>
 3
 4#include <asm/setup.h>
 5#include <asm/bios_ebda.h>
 6
 7void __init x86_early_init_platform_quirks(void)
 8{
 9	x86_platform.legacy.i8042 = X86_LEGACY_I8042_EXPECTED_PRESENT;
10	x86_platform.legacy.rtc = 1;
11	x86_platform.legacy.reserve_bios_regions = 0;
12	x86_platform.legacy.devices.pnpbios = 1;
13
14	switch (boot_params.hdr.hardware_subarch) {
15	case X86_SUBARCH_PC:
16		x86_platform.legacy.reserve_bios_regions = 1;
17		break;
18	case X86_SUBARCH_XEN:
19	case X86_SUBARCH_LGUEST:
20		x86_platform.legacy.devices.pnpbios = 0;
21		x86_platform.legacy.rtc = 0;
22		break;
23	case X86_SUBARCH_INTEL_MID:
24	case X86_SUBARCH_CE4100:
25		x86_platform.legacy.devices.pnpbios = 0;
26		x86_platform.legacy.rtc = 0;
27		x86_platform.legacy.i8042 = X86_LEGACY_I8042_PLATFORM_ABSENT;
28		break;
29	}
30
31	if (x86_platform.set_legacy_features)
32		x86_platform.set_legacy_features();
33}
34
35#if defined(CONFIG_PNPBIOS)
36bool __init arch_pnpbios_disabled(void)
37{
38	return x86_platform.legacy.devices.pnpbios == 0;
39}
40#endif