x86: fix lifting kernel CPU requirements and always enable PAE

commit 89878f60f4 x86: lift kernel minimum CPU requirement to Pentium MMX
caused kconfig havoc. Fix this and make sure PAE is enabled even on legacy
CPUs as the minimum required CPU has been Pentium MMX for a while now and
hence PAE is supported even on the x86_legacy target.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

3 files changed, 243 insertions, 10 deletions

diff --git a/target/linux/x86/config-4.9 b/target/linux/x86/config-4.9
index 09a9dfe..075b4f0 100644
--- a/target/linux/x86/config-4.9
+++ b/target/linux/x86/config-4.9
@@ -9,7 +9,9 @@ CONFIG_AMD_NB=y
 CONFIG_ARCH_CLOCKSOURCE_DATA=y
 CONFIG_ARCH_DEFCONFIG="arch/x86/configs/i386_defconfig"
 CONFIG_ARCH_DISCARD_MEMBLOCK=y
+CONFIG_ARCH_DMA_ADDR_T_64BIT=y
 CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
+CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
 CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
 CONFIG_ARCH_HAS_CPU_RELAX=y
 CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
@@ -22,7 +24,8 @@ CONFIG_ARCH_HIBERNATION_POSSIBLE=y
 CONFIG_ARCH_MAY_HAVE_PC_FDC=y
 CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
 CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
-# CONFIG_ARCH_RANDOM is not set
+CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
+CONFIG_ARCH_RANDOM=y
 CONFIG_ARCH_SELECT_MEMORY_MODEL=y
 CONFIG_ARCH_SPARSEMEM_ENABLE=y
 CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
@@ -49,6 +52,7 @@ CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_BLK_MQ_PCI=y
 CONFIG_BOUNCE=y
+CONFIG_BTT=y
 CONFIG_CLKBLD_I8253=y
 CONFIG_CLKEVT_I8253=y
 CONFIG_CLKSRC_I8253=y
@@ -163,6 +167,7 @@ CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
 CONFIG_HAVE_AOUT=y
 CONFIG_HAVE_ARCH_AUDITSYSCALL=y
 # CONFIG_HAVE_ARCH_BITREVERSE is not set
+CONFIG_HAVE_ARCH_HUGE_VMAP=y
 CONFIG_HAVE_ARCH_JUMP_LABEL=y
 CONFIG_HAVE_ARCH_KGDB=y
 CONFIG_HAVE_ARCH_KMEMCHECK=y
@@ -212,7 +217,8 @@ CONFIG_HAVE_UID16=y
 CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
 CONFIG_HAVE_USER_RETURN_NOTIFIER=y
 CONFIG_HIGHMEM=y
-CONFIG_HIGHMEM4G=y
+# CONFIG_HIGHMEM4G is not set
+CONFIG_HIGHMEM64G=y
 # CONFIG_HIGHPTE is not set
 CONFIG_HPET_EMULATE_RTC=y
 CONFIG_HPET_TIMER=y
@@ -239,6 +245,7 @@ CONFIG_INSTRUCTION_DECODER=y
 # CONFIG_INTEL_PCH_THERMAL is not set
 # CONFIG_INTEL_POWERCLAMP is not set
 # CONFIG_INTEL_SOC_DTS_THERMAL is not set
+CONFIG_IOMMU_HELPER=y
 # CONFIG_IOMMU_STRESS is not set
 # CONFIG_IOSF_MBI is not set
 CONFIG_IO_DELAY_0X80=y
@@ -264,9 +271,10 @@ CONFIG_KEXEC=y
 CONFIG_KEXEC_CORE=y
 CONFIG_KEYBOARD_ATKBD=y
 # CONFIG_LEDS_CLEVO_MAIL is not set
-CONFIG_M586MMX=y
+CONFIG_LIBNVDIMM=y
+# CONFIG_M486 is not set
 # CONFIG_M586 is not set
-# CONFIG_M586MMX is not set
+CONFIG_M586MMX=y
 # CONFIG_M586TSC is not set
 # CONFIG_M686 is not set
 # CONFIG_MACHZ_WDT is not set
@@ -298,6 +306,10 @@ CONFIG_MTRR=y
 # CONFIG_MWINCHIP3D is not set
 # CONFIG_MWINCHIPC6 is not set
 CONFIG_NAMESPACES=y
+CONFIG_ND_BLK=y
+CONFIG_ND_BTT=y
+CONFIG_ND_CLAIM=y
+CONFIG_NEED_DMA_MAP_STATE=y
 CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
 CONFIG_NEED_PER_CPU_KM=y
 CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
@@ -313,7 +325,6 @@ CONFIG_NVRAM=y
 # CONFIG_OF is not set
 CONFIG_OLD_SIGACTION=y
 CONFIG_OLD_SIGSUSPEND3=y
-# CONFIG_OLPC is not set
 CONFIG_OPROFILE_NMI_TIMER=y
 # CONFIG_OPTIMIZE_INLINING is not set
 CONFIG_OUTPUT_FORMAT="elf32-i386"
@@ -322,6 +333,7 @@ CONFIG_PAGE_OFFSET=0xC0000000
 # CONFIG_PC87413_WDT is not set
 CONFIG_PCI=y
 CONFIG_PCI_BIOS=y
+CONFIG_PCI_BUS_ADDR_T_64BIT=y
 CONFIG_PCI_DIRECT=y
 CONFIG_PCI_DOMAINS=y
 CONFIG_PCI_GOANY=y
@@ -336,9 +348,10 @@ CONFIG_PERF_EVENTS=y
 CONFIG_PERF_EVENTS_INTEL_CSTATE=y
 CONFIG_PERF_EVENTS_INTEL_RAPL=y
 CONFIG_PERF_EVENTS_INTEL_UNCORE=y
-CONFIG_PGTABLE_LEVELS=2
+CONFIG_PGTABLE_LEVELS=3
 CONFIG_PHYSICAL_ALIGN=0x100000
 CONFIG_PHYSICAL_START=0x1000000
+CONFIG_PHYS_ADDR_T_64BIT=y
 CONFIG_PMC_ATOM=y
 CONFIG_POWER_SUPPLY=y
 # CONFIG_PROCESSOR_SELECT is not set
@@ -376,6 +389,7 @@ CONFIG_SPARSEMEM_STATIC=y
 CONFIG_SPARSE_IRQ=y
 CONFIG_SRCU=y
 CONFIG_STRICT_DEVMEM=y
+CONFIG_SWIOTLB=y
 CONFIG_SYSCTL_EXCEPTION_TRACE=y
 # CONFIG_TELCLOCK is not set
 CONFIG_THERMAL=y
@@ -406,6 +420,7 @@ CONFIG_X86_32_LAZY_GS=y
 CONFIG_X86_ALIGNMENT_16=y
 # CONFIG_X86_ANCIENT_MCE is not set
 # CONFIG_X86_CHECK_BIOS_CORRUPTION is not set
+CONFIG_X86_CMPXCHG64=y
 # CONFIG_X86_CPUFREQ_NFORCE2 is not set
 # CONFIG_X86_CPUID is not set
 # CONFIG_X86_DEBUG_FPU is not set
@@ -419,7 +434,6 @@ CONFIG_X86_GENERIC=y
 # CONFIG_X86_INTEL_PSTATE is not set
 CONFIG_X86_INTEL_USERCOPY=y
 CONFIG_X86_INTERNODE_CACHE_SHIFT=6
-CONFIG_X86_INVD_BUG=y
 CONFIG_X86_IO_APIC=y
 CONFIG_X86_L1_CACHE_SHIFT=6
 # CONFIG_X86_LEGACY_VM86 is not set
@@ -430,12 +444,15 @@ CONFIG_X86_MCE_AMD=y
 # CONFIG_X86_MCE_INJECT is not set
 CONFIG_X86_MCE_INTEL=y
 CONFIG_X86_MCE_THRESHOLD=y
-CONFIG_X86_MINIMUM_CPU_FAMILY=4
+CONFIG_X86_MINIMUM_CPU_FAMILY=5
 CONFIG_X86_MPPARSE=y
 CONFIG_X86_MSR=y
 # CONFIG_X86_P4_CLOCKMOD is not set
+CONFIG_X86_PAE=y
 CONFIG_X86_PAT=y
 CONFIG_X86_PLATFORM_DEVICES=y
+CONFIG_X86_PMEM_LEGACY=y
+CONFIG_X86_PMEM_LEGACY_DEVICE=y
 # CONFIG_X86_POWERNOW_K6 is not set
 # CONFIG_X86_POWERNOW_K7 is not set
 CONFIG_X86_PPRO_FENCE=y
@@ -451,6 +468,7 @@ CONFIG_X86_RESERVE_LOW=64
 # CONFIG_X86_SPEEDSTEP_SMI is not set
 CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
 CONFIG_X86_THERMAL_VECTOR=y
+CONFIG_X86_TSC=y
 CONFIG_X86_UP_APIC=y
 CONFIG_X86_UP_IOAPIC=y
 CONFIG_X86_VERBOSE_BOOTUP=y
diff --git a/target/linux/x86/epia/config-4.4 b/target/linux/x86/epia/config-4.4
new file mode 100644
index 0000000..a9bcd2a
--- /dev/null
+++ b/target/linux/x86/epia/config-4.4
@@ -0,0 +1,213 @@
+# CONFIG_3C515 is not set
+CONFIG_ACPI=y
+CONFIG_ACPI_AC=y
+CONFIG_ACPI_BATTERY=y
+CONFIG_ACPI_BUTTON=y
+# CONFIG_ACPI_CMPC is not set
+# CONFIG_ACPI_CONTAINER is not set
+# CONFIG_ACPI_CUSTOM_DSDT is not set
+# CONFIG_ACPI_DEBUG is not set
+# CONFIG_ACPI_DOCK is not set
+# CONFIG_ACPI_EC_DEBUGFS is not set
+# CONFIG_ACPI_FAN is not set
+# CONFIG_ACPI_I2C_OPREGION is not set
+# CONFIG_ACPI_INITRD_TABLE_OVERRIDE is not set
+CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
+# CONFIG_ACPI_PCI_SLOT is not set
+CONFIG_ACPI_PROCESSOR=y
+# CONFIG_ACPI_PROCESSOR_AGGREGATOR is not set
+# CONFIG_ACPI_PROCFS_POWER is not set
+# CONFIG_ACPI_REDUCED_HARDWARE_ONLY is not set
+# CONFIG_ACPI_SBS is not set
+CONFIG_ACPI_THERMAL=y
+CONFIG_ACPI_VIDEO=y
+# CONFIG_ACPI_WMI is not set
+CONFIG_AGP=y
+# CONFIG_AGP_ALI is not set
+# CONFIG_AGP_AMD is not set
+# CONFIG_AGP_AMD64 is not set
+# CONFIG_AGP_ATI is not set
+# CONFIG_AGP_EFFICEON is not set
+# CONFIG_AGP_INTEL is not set
+# CONFIG_AGP_NVIDIA is not set
+# CONFIG_AGP_SIS is not set
+# CONFIG_AGP_SWORKS is not set
+CONFIG_AGP_VIA=y
+# CONFIG_APPLE_GMUX is not set
+CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
+# CONFIG_ASUS_LAPTOP is not set
+# CONFIG_BACKLIGHT_ADP8860 is not set
+# CONFIG_BACKLIGHT_ADP8870 is not set
+# CONFIG_BACKLIGHT_APPLE is not set
+CONFIG_BACKLIGHT_CLASS_DEVICE=y
+CONFIG_BACKLIGHT_GENERIC=y
+CONFIG_BACKLIGHT_LCD_SUPPORT=y
+# CONFIG_BACKLIGHT_SAHARA is not set
+CONFIG_BLK_DEV_SR=y
+# CONFIG_BLK_DEV_SR_VENDOR is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_CPU_IDLE_GOV_MENU=y
+# CONFIG_DELL_SMO8800 is not set
+CONFIG_DMA_SHARED_BUFFER=y
+CONFIG_DMI=y
+# CONFIG_DMIID is not set
+CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
+# CONFIG_DMI_SYSFS is not set
+CONFIG_DRM=y
+# CONFIG_DRM_AST is not set
+CONFIG_DRM_BOCHS=y
+# CONFIG_DRM_CIRRUS_QEMU is not set
+# CONFIG_DRM_GMA500 is not set
+# CONFIG_DRM_I2C_CH7006 is not set
+# CONFIG_DRM_I2C_NXP_TDA998X is not set
+# CONFIG_DRM_I2C_SIL164 is not set
+# CONFIG_DRM_I810 is not set
+# CONFIG_DRM_I915 is not set
+# CONFIG_DRM_I915_FBDEV is not set
+# CONFIG_DRM_I915_KMS is not set
+# CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT is not set
+CONFIG_DRM_KMS_FB_HELPER=y
+CONFIG_DRM_KMS_HELPER=y
+# CONFIG_DRM_LOAD_EDID_FIRMWARE is not set
+# CONFIG_DRM_MGA is not set
+# CONFIG_DRM_MGAG200 is not set
+# CONFIG_DRM_NOUVEAU is not set
+# CONFIG_DRM_PTN3460 is not set
+# CONFIG_DRM_QXL is not set
+# CONFIG_DRM_R128 is not set
+# CONFIG_DRM_RADEON is not set
+# CONFIG_DRM_SAVAGE is not set
+# CONFIG_DRM_SIS is not set
+# CONFIG_DRM_TDFX is not set
+# CONFIG_DRM_TTM is not set
+# CONFIG_DRM_UDL is not set
+CONFIG_DRM_VIA=y
+# CONFIG_DRM_VMWGFX is not set
+# CONFIG_EFI is not set
+# CONFIG_EISA is not set
+# CONFIG_EL3 is not set
+CONFIG_FB=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+CONFIG_FB_CMDLINE=y
+# CONFIG_FB_I810 is not set
+CONFIG_FB_SYS_COPYAREA=y
+CONFIG_FB_SYS_FILLRECT=y
+CONFIG_FB_SYS_IMAGEBLIT=y
+# CONFIG_FB_VESA is not set
+CONFIG_FB_VIA=y
+# CONFIG_FB_VIA_DIRECT_PROCFS is not set
+CONFIG_FB_VIA_X_COMPATIBILITY=y
+# CONFIG_FONTS is not set
+CONFIG_FONT_8x16=y
+CONFIG_FONT_8x8=y
+CONFIG_FONT_SUPPORT=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
+# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
+# CONFIG_FUJITSU_LAPTOP is not set
+# CONFIG_GEOS is not set
+CONFIG_GPIO_GENERIC_PLATFORM=y
+# CONFIG_GPIO_F7188X is not set
+CONFIG_GPIO_VX855=y
+# CONFIG_GPIO_LYNXPOINT is not set
+# CONFIG_GPIO_INTEL_MID is not set
+CONFIG_HAVE_ACPI_APEI=y
+CONFIG_HAVE_ACPI_APEI_NMI=y
+CONFIG_HDMI=y
+CONFIG_HID=y
+CONFIG_HID_BATTERY_STRENGTH=y
+# CONFIG_HIGHMEM4G is not set
+# CONFIG_HIGHMEM64G is not set
+CONFIG_HPET=y
+CONFIG_HPET_MMAP=y
+# CONFIG_HP_ACCEL is not set
+CONFIG_I2C=y
+CONFIG_I2C_ALGOBIT=y
+CONFIG_I2C_BOARDINFO=y
+CONFIG_INPUT_MOUSE=y
+CONFIG_INPUT_MOUSEDEV=y
+CONFIG_INPUT_MOUSEDEV_PSAUX=y
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+# CONFIG_INT340X_THERMAL is not set
+CONFIG_INTEL_GTT=y
+CONFIG_INTEL_IDLE=y
+# CONFIG_INTEL_IPS is not set
+# CONFIG_INTEL_MENLOW is not set
+CONFIG_INTERVAL_TREE=y
+CONFIG_ISA=y
+CONFIG_ISAPNP=y
+# CONFIG_ISCSI_IBFT_FIND is not set
+CONFIG_ISO9660_FS=y
+# CONFIG_JOLIET is not set
+# CONFIG_LANCE is not set
+# CONFIG_LCD_CLASS_DEVICE is not set
+# CONFIG_LEDS_CLEVO_MAIL is not set
+# CONFIG_MDA_CONSOLE is not set
+# CONFIG_MIXCOMWD is not set
+# CONFIG_MOUSE_BCM5974 is not set
+# CONFIG_MOUSE_CYAPA is not set
+CONFIG_MOUSE_PS2=y
+CONFIG_MOUSE_PS2_ALPS=y
+# CONFIG_MOUSE_PS2_CYPRESS is not set
+# CONFIG_MOUSE_PS2_ELANTECH is not set
+CONFIG_MOUSE_PS2_LIFEBOOK=y
+CONFIG_MOUSE_PS2_LOGIPS2PP=y
+CONFIG_MOUSE_PS2_SYNAPTICS=y
+# CONFIG_MOUSE_PS2_TOUCHKIT is not set
+CONFIG_MOUSE_PS2_TRACKPOINT=y
+# CONFIG_MOUSE_SERIAL is not set
+# CONFIG_MOUSE_VSXXXAA is not set
+# CONFIG_M486 is not set
+CONFIG_MVIAC3_2=y
+CONFIG_NLS=y
+CONFIG_NOHIGHMEM=y
+CONFIG_NO_HZ=y
+# CONFIG_PANASONIC_LAPTOP is not set
+CONFIG_PATA_LEGACY=y
+CONFIG_PATA_VIA=y
+CONFIG_PCIEAER=y
+CONFIG_PCIEPORTBUS=y
+CONFIG_PCI_IOAPIC=y
+CONFIG_PCI_LABEL=y
+CONFIG_PCI_MMCONFIG=y
+# CONFIG_PCWATCHDOG is not set
+CONFIG_PNP=y
+CONFIG_PNPACPI=y
+# CONFIG_PNPBIOS is not set
+CONFIG_PNP_DEBUG_MESSAGES=y
+# CONFIG_PVPANIC is not set
+CONFIG_RAS=y
+# CONFIG_SAMSUNG_Q10 is not set
+CONFIG_SATA_AHCI=y
+# CONFIG_SCx200_ACB is not set
+# CONFIG_SERIAL_8250_FINTEK is not set
+CONFIG_SERIAL_8250_PNP=y
+# CONFIG_THINKPAD_ACPI is not set
+# CONFIG_TOPSTAR_LAPTOP is not set
+# CONFIG_TOSHIBA_BT_RFKILL is not set
+# CONFIG_TOSHIBA_HAPS is not set
+CONFIG_USB=y
+CONFIG_USB_COMMON=y
+CONFIG_USB_EHCI_HCD=y
+# CONFIG_USB_EHCI_HCD_PLATFORM is not set
+CONFIG_USB_EHCI_PCI=y
+CONFIG_USB_OHCI_HCD=y
+# CONFIG_USB_OHCI_HCD_PLATFORM is not set
+CONFIG_USB_STORAGE=y
+CONFIG_USB_UHCI_HCD=y
+CONFIG_VGACON_SOFT_SCROLLBACK=y
+CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64
+# CONFIG_WDT is not set
+CONFIG_X86_ACPI_CPUFREQ=y
+CONFIG_X86_ACPI_CPUFREQ_CPB=y
+CONFIG_X86_ANCIENT_MCE=y
+CONFIG_X86_CMOV=y
+# CONFIG_X86_E_POWERSAVER is not set
+# CONFIG_X86_INTEL_LPSS is not set
+# CONFIG_X86_LONGHAUL is not set
+# CONFIG_X86_PCC_CPUFREQ is not set
+CONFIG_X86_PM_TIMER=y
+# CONFIG_X86_POWERNOW_K8 is not set
diff --git a/target/linux/x86/legacy/config-default b/target/linux/x86/legacy/config-default
index 0061ce2..7104925 100644
--- a/target/linux/x86/legacy/config-default
+++ b/target/linux/x86/legacy/config-default
@@ -15,6 +15,7 @@ CONFIG_ACPI_CPU_FREQ_PSS=y
 CONFIG_ACPI_HOTPLUG_IOAPIC=y
 # CONFIG_ACPI_I2C_OPREGION is not set
 CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
+# CONFIG_ACPI_NFIT is not set
 # CONFIG_ACPI_PCI_SLOT is not set
 CONFIG_ACPI_PROCESSOR=y
 # CONFIG_ACPI_PROCESSOR_AGGREGATOR is not set
@@ -121,6 +122,7 @@ CONFIG_HDMI=y
 CONFIG_HID=y
 CONFIG_HID_BATTERY_STRENGTH=y
 # CONFIG_HIGHMEM4G is not set
+# CONFIG_HIGHMEM64G is not set
 CONFIG_HPET=y
 CONFIG_HPET_MMAP=y
 # CONFIG_HP_ACCEL is not set
@@ -149,7 +151,6 @@ CONFIG_ISO9660_FS=y
 # CONFIG_LCD_CLASS_DEVICE is not set
 CONFIG_LZO_COMPRESS=y
 CONFIG_LZO_DECOMPRESS=y
-CONFIG_M486=y
 # CONFIG_MDA_CONSOLE is not set
 CONFIG_MFD_CORE=y
 CONFIG_MFD_INTEL_LPSS=y
@@ -173,6 +174,7 @@ CONFIG_MOUSE_PS2_TRACKPOINT=y
 # CONFIG_MOUSE_VSXXXAA is not set
 CONFIG_NOHIGHMEM=y
 CONFIG_NO_HZ=y
+# CONFIG_OLPC is not set
 CONFIG_PATA_AMD=y
 CONFIG_PATA_ATIIXP=y
 CONFIG_PATA_LEGACY=y
@@ -220,7 +222,7 @@ CONFIG_X86_ACPI_CPUFREQ=y
 # CONFIG_X86_E_POWERSAVER is not set
 # CONFIG_X86_INTEL_LPSS is not set
 # CONFIG_X86_LONGHAUL is not set
-# CONFIG_X86_PAE is not set
+CONFIG_X86_PAE=y
 # CONFIG_X86_PCC_CPUFREQ is not set
 CONFIG_X86_PM_TIMER=y
 # CONFIG_X86_POWERNOW_K8 is not set