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