kconfig: introduce kconfig files

The Kconfig files were generated mostly with this script:

  for i in `grep -ho CONFIG_[A-Z0-9_]* default-configs/* | sort -u`; do
    set fnord `git grep -lw $i -- 'hw/*/Makefile.objs' `
    shift
    if test $# = 1; then
      cat >> $(dirname $1)/Kconfig << EOF
config ${i#CONFIG_}
    bool

EOF
      git add $(dirname $1)/Kconfig
    else
      echo $i $*
    fi
  done
  sed -i '$d' hw/*/Kconfig
  for i in hw/*; do
    if test -d $i && ! test -f $i/Kconfig; then
      touch $i/Kconfig
      git add $i/Kconfig
    fi
  done

Whenever a symbol is referenced from multiple subdirectories, the
script prints the list of directories that reference the symbol.
These symbols have to be added manually to the Kconfig files.

Kconfig.host and hw/Kconfig were created manually.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Yang Zhong <yang.zhong@intel.com>
Message-Id: <20190123065618.3520-27-yang.zhong@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Kconfig.host

+# These are "proxy" symbols used to pass config-host.mak values
+# down to Kconfig.
+
+config KVM
+    bool
+
+config LINUX
+    bool
+
+config OPENGL
+    bool
+
+config SPICE
+    bool
+
+config TPM
+    bool
+
+config VHOST_USER
+    bool
+
+config XEN
+    bool
+
+config VIRTFS
+    bool

hw/9pfs/Kconfig

+config VIRTIO_9P
+    bool

hw/Kconfig

+# devices Kconfig
+source 9pfs/Kconfig
+source acpi/Kconfig
+source adc/Kconfig
+source audio/Kconfig
+source block/Kconfig
+source bt/Kconfig
+source char/Kconfig
+source core/Kconfig
+source display/Kconfig
+source dma/Kconfig
+source gpio/Kconfig
+source hyperv/Kconfig
+source i2c/Kconfig
+source ide/Kconfig
+source input/Kconfig
+source intc/Kconfig
+source ipack/Kconfig
+source ipmi/Kconfig
+source isa/Kconfig
+source mem/Kconfig
+source misc/Kconfig
+source net/Kconfig
+source nvram/Kconfig
+source pci-bridge/Kconfig
+source pci-host/Kconfig
+source pcmcia/Kconfig
+source pci/Kconfig
+source scsi/Kconfig
+source sd/Kconfig
+source smbios/Kconfig
+source ssi/Kconfig
+source timer/Kconfig
+source tpm/Kconfig
+source usb/Kconfig
+source virtio/Kconfig
+source vfio/Kconfig
+source watchdog/Kconfig
+
+# arch Kconfig
+source arm/Kconfig
+source alpha/Kconfig
+source cris/Kconfig
+source hppa/Kconfig
+source i386/Kconfig
+source lm32/Kconfig
+source m68k/Kconfig
+source microblaze/Kconfig
+source mips/Kconfig
+source moxie/Kconfig
+source nios2/Kconfig
+source openrisc/Kconfig
+source ppc/Kconfig
+source riscv/Kconfig
+source s390x/Kconfig
+source sh4/Kconfig
+source sparc/Kconfig
+source sparc64/Kconfig
+source tricore/Kconfig
+source unicore32/Kconfig
+source xtensa/Kconfig
+
+# Symbols used by multiple targets
+config XILINX
+    bool
+
+config XILINX_AXI
+    bool

hw/acpi/Kconfig

+config ACPI
+    bool
+
+config ACPI_X86
+    bool
+
+config ACPI_X86_ICH
+    bool
+
+config ACPI_CPU_HOTPLUG
+    bool
+
+config ACPI_MEMORY_HOTPLUG
+    bool
+
+config ACPI_NVDIMM
+    bool
+
+config ACPI_VMGENID
+    bool

hw/adc/Kconfig

+config STM32F2XX_ADC
+    bool

hw/alpha/Kconfig

+config DP264
+    bool

hw/arm/Kconfig

+config ARM_VIRT
+    bool
+
+config DIGIC
+    bool
+
+config EXYNOS4
+    bool
+
+config HIGHBANK
+    bool
+
+config INTEGRATOR
+    bool
+
+config MAINSTONE
+    bool
+
+config MUSICPAL
+    bool
+
+config NETDUINO2
+    bool
+
+config NSERIES
+    bool
+
+config OMAP
+    bool
+
+config PXA2XX
+    bool
+
+config REALVIEW
+    bool
+
+config STELLARIS
+    bool
+
+config STRONGARM
+    bool
+
+config VERSATILE
+    bool
+
+config ZYNQ
+    bool
+
+config ARM_V7M
+    bool
+
+config ALLWINNER_A10
+    bool
+
+config RASPI
+    bool
+
+config STM32F205_SOC
+    bool
+
+config XLNX_ZYNQMP_ARM
+    bool
+
+config XLNX_VERSAL
+    bool
+
+config FSL_IMX25
+    bool
+
+config FSL_IMX31
+    bool
+
+config FSL_IMX6
+    bool
+
+config ASPEED_SOC
+    bool
+
+config MPS2
+    bool
+
+config FSL_IMX7
+    bool
+
+config ARM_SMMUV3
+    bool
+
+config FSL_IMX6UL
+    bool
+
+config NRF51_SOC
+    bool
+
+config MSF2
+    bool
+
+config ZAURUS
+    bool
+
+config A9MPCORE
+    bool
+
+config A15MPCORE
+    bool
+
+config ARM11MPCORE
+    bool
+
+config ARMSSE
+    bool
+
+config ARMSSE_CPUID
+    bool
+
+config ARMSSE_MHU
+    bool
+
+config MUSCA
+    bool

hw/audio/Kconfig

+config SB16
+    bool
+
+config ES1370
+    bool
+
+config AC97
+    bool
+
+config ADLIB
+    bool
+
+config GUS
+    bool
+
+config CS4231A
+    bool
+
+config HDA
+    bool
+
+config PCSPK
+    bool
+
+config WM8750
+    bool
+
+config PL041
+    bool
+
+config CS4231
+    bool
+
+config MARVELL_88W8618
+    bool

hw/block/Kconfig

+config FDC
+    bool
+
+config SSI_M25P80
+    bool
+
+config NAND
+    bool
+
+config PFLASH_CFI01
+    bool
+
+config PFLASH_CFI02
+    bool
+
+config ECC
+    bool
+
+config ONENAND
+    bool
+
+config NVME_PCI
+    bool
+
+config VIRTIO_BLK
+    bool
+
+config VHOST_USER_BLK
+    bool

hw/bt/Kconfig

+config BLUETOOTH
+    bool

hw/char/Kconfig

+config ESCC
+    bool
+
+config PARALLEL
+    bool
+
+config PL011
+    bool
+
+config SERIAL
+    bool
+
+config SERIAL_ISA
+    bool
+
+config SERIAL_PCI
+    bool
+
+config VIRTIO_SERIAL
+    bool
+
+config STM32F2XX_USART
+    bool
+
+config CMSDK_APB_UART
+    bool
+
+config SCLPCONSOLE
+    bool
+
+config TERMINAL3270
+    bool

hw/core/Kconfig

+config EMPTY_SLOT
+    bool
+
+config PTIMER
+    bool
+
+config FITLOADER
+    bool
+
+config PLATFORM_BUS
+    bool

hw/cpu/Kconfig

+config ARM11MPCORE
+    bool
+
+config A9MPCORE
+    bool
+
+config A15MPCORE
+    bool

hw/cris/Kconfig

+config AXIS
+    bool
+
+config ETRAXFS
+   bool

hw/display/Kconfig

+config EDID
+    bool
+
+config FW_CFG_DMA
+    bool
+
+config ADS7846
+    bool
+
+config VGA_CIRRUS
+    bool
+
+config G364FB
+    bool
+
+config JAZZ_LED
+    bool
+
+config PL110
+    bool
+
+config SII9022
+    bool
+
+config SSD0303
+    bool
+
+config SSD0323
+    bool
+
+config VGA_PCI
+    bool
+
+config VGA_ISA
+    bool
+
+config VGA_ISA_MM
+    bool
+
+config VMWARE_VGA
+    bool
+
+config BOCHS_DISPLAY
+    bool
+
+config BLIZZARD
+    bool
+
+config FRAMEBUFFER
+    bool
+
+config MILKYMIST_TMU2
+    bool
+
+config SM501
+    bool
+
+config TCX
+    bool
+
+config CG3
+    bool
+
+config VGA
+    bool
+
+config QXL
+    bool
+
+config VIRTIO_GPU
+    bool
+
+config VIRTIO_VGA
+    bool
+
+config DPCD
+    bool

hw/dma/Kconfig

+config RC4030
+    bool
+
+config PL080
+    bool
+
+config PL330
+    bool
+
+config I82374
+    bool
+
+config I8257
+    bool
+
+config ZYNQ_DEVCFG
+    bool
+
+config STP2000
+    bool

hw/gpio/Kconfig

+config MAX7310
+    bool
+
+config PL061
+    bool
+
+config GPIO_KEY
+    bool

hw/hppa/Kconfig

+config DINO
+    bool

hw/hyperv/Kconfig

+config HYPERV
+    bool
+
+config HYPERV_TESTDEV
+    bool

hw/i2c/Kconfig

+config I2C
+    bool
+
+config SMBUS_EEPROM
+    bool
+
+config DDC
+    bool
+
+config VERSATILE_I2C
+    bool
+
+config ACPI_SMBUS
+    bool
+
+config BITBANG_I2C
+    bool
+
+config IMX_I2C
+    bool