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Re: [Qemu-devel] [PATCH 33/52] build: switch to Kconfig
From: |
Philippe Mathieu-Daudé |
Subject: |
Re: [Qemu-devel] [PATCH 33/52] build: switch to Kconfig |
Date: |
Thu, 31 Jan 2019 22:48:50 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 |
Hi Paolo,
On 1/25/19 11:06 AM, Paolo Bonzini wrote:
> The make_device_config.sh script is replaced by minikconf, which
> is modified to support the same command line as its predecessor.
>
> The roots of the parsing are default-configs/*.mak, Kconfig.host and
> hw/Kconfig. One difference with make_device_config.sh is that all symbols
> have to be defined in a Kconfig file, including those coming from the
> configure script. This is the reason for the Kconfig.host file introduced
> in the previous patch. Whenever a file in default-configs/*.mak used
> $(...) to refer to a config-host.mak symbol, this is replaced by a
> Kconfig dependency; this part must be done already in this patch
> for bisectability.
>
> Signed-off-by: Paolo Bonzini <address@hidden>
> Signed-off-by: Yang Zhong <address@hidden>
> Acked-by: Thomas Huth <address@hidden>
> Message-Id: <address@hidden>
> Signed-off-by: Paolo Bonzini <address@hidden>
> ---
> Kconfig.host | 3 ++-
> Makefile | 19 ++++++++++++++++---
> Makefile.target | 7 ++++++-
> configure | 3 +++
> default-configs/arm-softmmu.mak | 2 --
> default-configs/i386-softmmu.mak | 5 +----
> default-configs/lm32-softmmu.mak | 1 -
> default-configs/pci.mak | 1 -
> default-configs/ppc-softmmu.mak | 1 -
> default-configs/ppc64-softmmu.mak | 6 ------
> default-configs/s390x-softmmu.mak | 4 +---
> default-configs/virtio.mak | 3 ---
> hw/9pfs/Kconfig | 1 +
> hw/block/Kconfig | 1 +
> hw/display/Kconfig | 4 ++++
> hw/i386/Kconfig | 6 +++++-
> hw/input/Kconfig | 5 +++++
> hw/intc/Kconfig | 12 ++++++++++++
> hw/misc/Kconfig | 2 ++
> hw/ppc/Kconfig | 4 ++++
> hw/scsi/Kconfig | 6 ++++++
> hw/tpm/Kconfig | 2 ++
> hw/vfio/Kconfig | 11 +++++++++++
> rules.mak | 2 +-
> scripts/make_device_config.sh | 30 ------------------------------
> 25 files changed, 83 insertions(+), 58 deletions(-)
> delete mode 100644 scripts/make_device_config.sh
>
> diff --git a/Kconfig.host b/Kconfig.host
> index f43f418..3772627 100644
> --- a/Kconfig.host
> +++ b/Kconfig.host
> @@ -1,5 +1,6 @@
> # These are "proxy" symbols used to pass config-host.mak values
> -# down to Kconfig.
> +# down to Kconfig. See also MINIKCONF_ARGS in the Makefile:
> +# these two need to be kept in sync.
>
> config KVM
> bool
> diff --git a/Makefile b/Makefile
> index de898ea..70b9aec 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -326,9 +326,22 @@ endif
>
> -include $(SUBDIR_DEVICES_MAK_DEP)
>
> -%/config-devices.mak: default-configs/%.mak
> $(SRC_PATH)/scripts/make_device_config.sh
> - $(call quiet-command, \
> - $(SHELL) $(SRC_PATH)/scripts/make_device_config.sh $<
> $*-config-devices.mak.d $@ > address@hidden,"GEN","address@hidden")
> +# This has to be kept in sync with Kconfig.host.
> +MINIKCONF_ARGS = \
> + $@ $*-config.devices.mak.d $< $(MINIKCONF_INPUTS) \
> + CONFIG_KVM=$(CONFIG_KVM) \
> + CONFIG_SPICE=$(CONFIG_SPICE) \
> + CONFIG_TPM=$(CONFIG_TPM) \
> + CONFIG_XEN=$(CONFIG_XEN) \
There is something I don't understand here: Does CONFIG_XEN in
Kconfig.host take precedence over the target configs? I'm looking at
these configs:
if supported_xen_target $target; then
echo "CONFIG_XEN=n" >> $config_target_mak
if test "$xen_pci_passthrough" = yes; then
echo "CONFIG_XEN_PCI_PASSTHROUGH=y" >> "$config_target_mak"
fi
fi
It seems Kconfig.host has precedence over them, so if all targets are
trying to build with Xen even if they don't support it.
I cc'ed the Xen team, it would be nice if one of them also tests this.
> + CONFIG_OPENGL=$(CONFIG_OPENGL) \
> + CONFIG_VHOST_USER=$(CONFIG_VHOST_USER) \
> + CONFIG_LINUX=$(CONFIG_LINUX)
> +
> +MINIKCONF_INPUTS = $(SRC_PATH)/Kconfig.host $(SRC_PATH)/hw/Kconfig
> +MINIKCONF = $(PYTHON) $(SRC_PATH)/scripts/minikconf.py \
> +
> +%/config-devices.mak: default-configs/%.mak $(MINIKCONF_INPUTS)
> + $(call quiet-command, $(MINIKCONF) $(MINIKCONF_ARGS) > address@hidden,
> "GEN", "address@hidden")
> $(call quiet-command, if test -f $@; then \
> if cmp -s address@hidden $@; then \
> mv address@hidden $@; \
> diff --git a/Makefile.target b/Makefile.target
> index 39f72e8..f31692c 100644
> --- a/Makefile.target
> +++ b/Makefile.target
> @@ -4,9 +4,12 @@ BUILD_DIR?=$(CURDIR)/..
>
> include ../config-host.mak
> include config-target.mak
> -include config-devices.mak
> include $(SRC_PATH)/rules.mak
>
> +ifdef CONFIG_SOFTMMU
> +include config-devices.mak
> +endif
> +
> $(call set-vpath, $(SRC_PATH):$(BUILD_DIR))
> ifdef CONFIG_LINUX
> QEMU_CFLAGS += -I../linux-headers
> @@ -190,7 +193,9 @@ all-obj-$(CONFIG_SOFTMMU) += $(crypto-obj-y)
> all-obj-$(CONFIG_SOFTMMU) += $(io-obj-y)
> all-obj-$(CONFIG_SOFTMMU) += $(slirp-obj-y)
>
> +ifdef CONFIG_SOFTMMU
> $(QEMU_PROG_BUILD): config-devices.mak
> +endif
>
> COMMON_LDADDS = ../libqemuutil.a
>
> diff --git a/configure b/configure
> index 8f312ac..dae1b67 100755
> --- a/configure
> +++ b/configure
> @@ -7377,12 +7377,15 @@ if supported_xen_target $target; then
> fi
> if supported_kvm_target $target; then
> echo "CONFIG_KVM=y" >> $config_target_mak
> + echo "$target/config-devices.mak: CONFIG_KVM=y" >> $config_host_mak
> if test "$vhost_net" = "yes" ; then
> echo "CONFIG_VHOST_NET=y" >> $config_target_mak
> if test "$vhost_user" = "yes" ; then
> echo "CONFIG_VHOST_USER_NET_TEST_$target_name=y" >>
> $config_host_mak
> fi
> fi
> +else
> + echo "$target/config-devices.mak: CONFIG_KVM=n" >> $config_host_mak
> fi
> if supported_hax_target $target; then
> echo "CONFIG_HAX=y" >> $config_target_mak
> diff --git a/default-configs/arm-softmmu.mak b/default-configs/arm-softmmu.mak
> index 4f0ecba..b0995a0 100644
> --- a/default-configs/arm-softmmu.mak
> +++ b/default-configs/arm-softmmu.mak
> @@ -51,7 +51,6 @@ CONFIG_ARM_V7M=y
> CONFIG_NETDUINO2=y
>
> CONFIG_ARM_GIC=y
> -CONFIG_ARM_GIC_KVM=$(CONFIG_KVM)
> CONFIG_ARM_TIMER=y
> CONFIG_ARM_MPTIMER=y
> CONFIG_A9_GTIMER=y
> @@ -123,7 +122,6 @@ CONFIG_VERSATILE_PCI=y
> CONFIG_VERSATILE_I2C=y
>
> CONFIG_PCI_EXPRESS_GENERIC_BRIDGE=y
> -CONFIG_VFIO=$(CONFIG_LINUX)
> CONFIG_VFIO_PLATFORM=y
> CONFIG_VFIO_XGMAC=y
> CONFIG_VFIO_AMD_XGBE=y
> diff --git a/default-configs/i386-softmmu.mak
> b/default-configs/i386-softmmu.mak
> index 15b6287..412c8c5 100644
> --- a/default-configs/i386-softmmu.mak
> +++ b/default-configs/i386-softmmu.mak
> @@ -4,7 +4,6 @@ include pci.mak
> include sound.mak
> include usb.mak
> include hyperv.mak
> -CONFIG_QXL=$(CONFIG_SPICE)
> CONFIG_VGA_ISA=y
> CONFIG_VGA_CIRRUS=y
> CONFIG_VMWARE_VGA=y
> @@ -37,8 +36,6 @@ CONFIG_HPET=y
> CONFIG_APPLESMC=y
> CONFIG_I8259=y
> CONFIG_PFLASH_CFI01=y
> -CONFIG_TPM_TIS=$(CONFIG_TPM)
> -CONFIG_TPM_CRB=$(CONFIG_TPM)
> CONFIG_MC146818RTC=y
> CONFIG_PCI_PIIX=y
> CONFIG_WDT_IB700=y
> @@ -66,9 +63,9 @@ CONFIG_ACPI_SMBUS=y
> CONFIG_SMBUS_EEPROM=y
> CONFIG_FW_CFG_DMA=y
> CONFIG_I2C=y
> -CONFIG_SEV=$(CONFIG_KVM)
> CONFIG_VTD=y
> CONFIG_AMD_IOMMU=y
> CONFIG_PAM=y
> +CONFIG_PC=y
> CONFIG_I440FX=y
> CONFIG_Q35=y
> diff --git a/default-configs/lm32-softmmu.mak
> b/default-configs/lm32-softmmu.mak
> index 4889348..ef0f4ba 100644
> --- a/default-configs/lm32-softmmu.mak
> +++ b/default-configs/lm32-softmmu.mak
> @@ -2,7 +2,6 @@
>
> CONFIG_LM32=y
> CONFIG_MILKYMIST=y
> -CONFIG_MILKYMIST_TMU2=$(CONFIG_OPENGL)
> CONFIG_FRAMEBUFFER=y
> CONFIG_PTIMER=y
> CONFIG_PFLASH_CFI01=y
> diff --git a/default-configs/pci.mak b/default-configs/pci.mak
> index 0552190..3d4c71d 100644
> --- a/default-configs/pci.mak
> +++ b/default-configs/pci.mak
> @@ -47,6 +47,5 @@ CONFIG_VGA_PCI=y
> CONFIG_BOCHS_DISPLAY=y
> CONFIG_IVSHMEM_DEVICE=$(CONFIG_IVSHMEM)
> CONFIG_ROCKER=y
> -CONFIG_VFIO=$(CONFIG_LINUX)
> CONFIG_VFIO_PCI=y
> CONFIG_EDID=y
> diff --git a/default-configs/ppc-softmmu.mak b/default-configs/ppc-softmmu.mak
> index 52acb7c..90118cb 100644
> --- a/default-configs/ppc-softmmu.mak
> +++ b/default-configs/ppc-softmmu.mak
> @@ -18,7 +18,6 @@ CONFIG_I8259=y
> CONFIG_XILINX=y
> CONFIG_XILINX_ETHLITE=y
> CONFIG_E500=y
> -CONFIG_OPENPIC_KVM=$(call land,$(CONFIG_E500),$(CONFIG_KVM))
> CONFIG_PLATFORM_BUS=y
> CONFIG_ETSEC=y
> CONFIG_PPC405=y
> diff --git a/default-configs/ppc64-softmmu.mak
> b/default-configs/ppc64-softmmu.mak
> index ccd7b17..a0a9151 100644
> --- a/default-configs/ppc64-softmmu.mak
> +++ b/default-configs/ppc64-softmmu.mak
> @@ -13,12 +13,6 @@ CONFIG_ISA_IPMI_BT=y
> # For pSeries
> CONFIG_PSERIES=y
> CONFIG_VIRTIO_VGA=y
> -CONFIG_XICS=$(CONFIG_PSERIES)
> -CONFIG_XICS_SPAPR=$(CONFIG_PSERIES)
> -CONFIG_XICS_KVM=$(call land,$(CONFIG_PSERIES),$(CONFIG_KVM))
> -CONFIG_XIVE=$(CONFIG_PSERIES)
> -CONFIG_XIVE_SPAPR=$(CONFIG_PSERIES)
> -CONFIG_VFIO_SPAPR=$(CONFIG_PSERIES)
> CONFIG_MEM_DEVICE=y
> CONFIG_DIMM=y
> CONFIG_SPAPR_RNG=y
> diff --git a/default-configs/s390x-softmmu.mak
> b/default-configs/s390x-softmmu.mak
> index 6f2c6ce..2794ffb 100644
> --- a/default-configs/s390x-softmmu.mak
> +++ b/default-configs/s390x-softmmu.mak
> @@ -1,12 +1,10 @@
> CONFIG_PCI=y
> -CONFIG_VIRTIO_PCI=$(CONFIG_PCI)
> +CONFIG_VIRTIO_PCI=y
> include virtio.mak
> CONFIG_SCLPCONSOLE=y
> CONFIG_TERMINAL3270=y
> CONFIG_S390_FLIC=y
> -CONFIG_S390_FLIC_KVM=$(CONFIG_KVM)
> CONFIG_WDT_DIAG288=y
> CONFIG_S390_CCW_VIRTIO=y
> -CONFIG_VFIO=$(CONFIG_LINUX)
> CONFIG_VFIO_CCW=y
> CONFIG_VFIO_AP=y
> diff --git a/default-configs/virtio.mak b/default-configs/virtio.mak
> index ecb4420..51599ed 100644
> --- a/default-configs/virtio.mak
> +++ b/default-configs/virtio.mak
> @@ -1,5 +1,3 @@
> -CONFIG_VHOST_USER_SCSI=$(call land,$(CONFIG_VHOST_USER),$(CONFIG_LINUX))
> -CONFIG_VHOST_USER_BLK=$(call land,$(CONFIG_VHOST_USER),$(CONFIG_LINUX))
> CONFIG_VIRTIO=y
> CONFIG_VIRTIO_9P=$(CONFIG_VIRTFS)
> CONFIG_VIRTIO_BALLOON=y
> @@ -12,4 +10,3 @@ CONFIG_VIRTIO_RNG=y
> CONFIG_SCSI=y
> CONFIG_VIRTIO_SCSI=y
> CONFIG_VIRTIO_SERIAL=y
> -CONFIG_VIRTIO_INPUT_HOST=$(CONFIG_LINUX)
> diff --git a/hw/9pfs/Kconfig b/hw/9pfs/Kconfig
> index be8e5b3..84d2366 100644
> --- a/hw/9pfs/Kconfig
> +++ b/hw/9pfs/Kconfig
> @@ -2,3 +2,4 @@ config VIRTFS
>
> config VIRTIO_9P
> bool
> + default y if VIRTFS
> diff --git a/hw/block/Kconfig b/hw/block/Kconfig
> index 9d418bc..1780569 100644
> --- a/hw/block/Kconfig
> +++ b/hw/block/Kconfig
> @@ -27,3 +27,4 @@ config VIRTIO_BLK
>
> config VHOST_USER_BLK
> bool
> + default y if VHOST_USER && LINUX
> diff --git a/hw/display/Kconfig b/hw/display/Kconfig
> index d5c022c..429056b 100644
> --- a/hw/display/Kconfig
> +++ b/hw/display/Kconfig
> @@ -51,6 +51,8 @@ config FRAMEBUFFER
>
> config MILKYMIST_TMU2
> bool
> + default y
> + depends on OPENGL
>
> config SM501
> bool
> @@ -66,6 +68,8 @@ config VGA
>
> config QXL
> bool
> + default y if PC
> + depends on SPICE && PCI
>
> config VIRTIO_GPU
> bool
> diff --git a/hw/i386/Kconfig b/hw/i386/Kconfig
> index 2dbe2b5..9a0e559 100644
> --- a/hw/i386/Kconfig
> +++ b/hw/i386/Kconfig
> @@ -1,4 +1,8 @@
> -config KVM
> +config SEV
> + bool
> + default y if PC && KVM
> +
> +config PC
> bool
>
> config I440FX
> diff --git a/hw/input/Kconfig b/hw/input/Kconfig
> index 91bae47..98a18a1 100644
> --- a/hw/input/Kconfig
> +++ b/hw/input/Kconfig
> @@ -19,5 +19,10 @@ config TSC2005
> config VIRTIO_INPUT
> bool
>
> +config VIRTIO_INPUT_HOST
> + bool
> + default y if LINUX
> + depends on LINUX
> +
> config TSC210X
> bool
> diff --git a/hw/intc/Kconfig b/hw/intc/Kconfig
> index 69adbd1..6eea14e 100644
> --- a/hw/intc/Kconfig
> +++ b/hw/intc/Kconfig
> @@ -21,18 +21,28 @@ config APIC
>
> config ARM_GIC_KVM
> bool
> + default y
> + depends on ARM_GIC && KVM
>
> config OPENPIC_KVM
> bool
> + default y
> + depends on OPENPIC && KVM
>
> config XICS
> bool
> + default y
> + depends on PSERIES
>
> config XICS_SPAPR
> bool
> + default y
> + depends on PSERIES
>
> config XICS_KVM
> bool
> + default y
> + depends on XICS && KVM
>
> config ALLWINNER_A10_PIC
> bool
> @@ -42,6 +52,8 @@ config S390_FLIC
>
> config S390_FLIC_KVM
> bool
> + default y
> + depends on S390_FLIC && KVM
>
> config OMPIC
> bool
> diff --git a/hw/misc/Kconfig b/hw/misc/Kconfig
> index c006b04..cc8dbed 100644
> --- a/hw/misc/Kconfig
> +++ b/hw/misc/Kconfig
> @@ -48,6 +48,8 @@ config MACIO
>
> config IVSHMEM_DEVICE
> bool
> + default y
> + depends on PCI
>
> config ECCMEMCTL
> bool
> diff --git a/hw/ppc/Kconfig b/hw/ppc/Kconfig
> index 9da9d7d..b0095e1 100644
> --- a/hw/ppc/Kconfig
> +++ b/hw/ppc/Kconfig
> @@ -45,12 +45,16 @@ config MAC_PMU
>
> config XIVE
> bool
> + default y
> + depends on PSERIES
>
> config MACIO_GPIO
> bool
>
> config XIVE_SPAPR
> bool
> + default y
> + depends on PSERIES
>
> config CUDA
> bool
> diff --git a/hw/scsi/Kconfig b/hw/scsi/Kconfig
> index eb78478..834413b 100644
> --- a/hw/scsi/Kconfig
> +++ b/hw/scsi/Kconfig
> @@ -19,8 +19,14 @@ config ESP
> config ESP_PCI
> bool
>
> +config SPAPR_VSCSI
> + bool
> + default y
> + depends on PSERIES
> +
> config VIRTIO_SCSI
> bool
>
> config VHOST_USER_SCSI
> bool
> + default y if VHOST_USER && LINUX
> diff --git a/hw/tpm/Kconfig b/hw/tpm/Kconfig
> index 2eee8eb..db57388 100644
> --- a/hw/tpm/Kconfig
> +++ b/hw/tpm/Kconfig
> @@ -3,6 +3,8 @@ config TPM
>
> config TPM_TIS
> bool
> + default y if PC
> + depends on TPM
>
> config TPM_CRB
> bool
> diff --git a/hw/vfio/Kconfig b/hw/vfio/Kconfig
> index 31d8dfc..f896779 100644
> --- a/hw/vfio/Kconfig
> +++ b/hw/vfio/Kconfig
> @@ -1,17 +1,26 @@
> config VFIO
> bool
> + depends on LINUX
>
> config VFIO_PCI
> bool
> + select VFIO
> + depends on LINUX
>
> config VFIO_SPAPR
> bool
> + default y
> + depends on VFIO && LINUX && PSERIES
>
> config VFIO_CCW
> bool
> + select VFIO
> + depends on LINUX
>
> config VFIO_PLATFORM
> bool
> + select VFIO
> + depends on LINUX
>
> config VFIO_XGMAC
> bool
> @@ -21,3 +30,5 @@ config VFIO_AMD_XGBE
>
> config VFIO_AP
> bool
> + select VFIO
> + depends on LINUX
> diff --git a/rules.mak b/rules.mak
> index 86e033d..62cf02e 100644
> --- a/rules.mak
> +++ b/rules.mak
> @@ -144,7 +144,7 @@ cc-option = $(if $(shell $(CC) $1 $2 -S -o /dev/null -xc
> /dev/null \
> cc-c-option = $(if $(shell $(CC) $1 $2 -c -o /dev/null -xc /dev/null \
> >/dev/null 2>&1 && echo OK), $2, $3)
>
> -VPATH_SUFFIXES = %.c %.h %.S %.cc %.cpp %.m %.mak %.texi %.sh %.rc
> +VPATH_SUFFIXES = %.c %.h %.S %.cc %.cpp %.m %.mak %.texi %.sh %.rc Kconfig%
> set-vpath = $(if $1,$(foreach PATTERN,$(VPATH_SUFFIXES),$(eval vpath
> $(PATTERN) $1)))
>
> # install-prog list, dir
> diff --git a/scripts/make_device_config.sh b/scripts/make_device_config.sh
> deleted file mode 100644
> index 354af31..0000000
> --- a/scripts/make_device_config.sh
> +++ /dev/null
> @@ -1,30 +0,0 @@
> -#! /bin/sh
> -# Writes a target device config file to stdout, from a default and from
> -# include directives therein. Also emits Makefile dependencies.
> -#
> -# Usage: make_device_config.sh SRC DEPFILE-NAME DEPFILE-TARGET > DEST
> -
> -src=$1
> -dep=$2
> -target=$3
> -src_dir=$(dirname $src)
> -all_includes=
> -
> -process_includes () {
> - cat $1 | grep '^include' | \
> - while read include file ; do
> - all_includes="$all_includes $src_dir/$file"
> - process_includes $src_dir/$file
> - done
> -}
> -
> -f=$src
> -while [ -n "$f" ] ; do
> - f=$(cat $f | tr -d '\r' | awk '/^include / {printf "'$src_dir'/%s ", $2}')
> - [ $? = 0 ] || exit 1
> - all_includes="$all_includes $f"
> -done
> -process_includes $src
> -
> -cat $src $all_includes | grep -v '^include'
> -echo "$target: $all_includes" > $dep
>
- [Qemu-devel] [PATCH 11/52] hw/ppc/Makefile.objs: Build all boards conditinally with CONFIG_*, (continued)
- [Qemu-devel] [PATCH 11/52] hw/ppc/Makefile.objs: Build all boards conditinally with CONFIG_*, Paolo Bonzini, 2019/01/25
- [Qemu-devel] [PATCH 30/52] minikconfig: add semantic analysis, Paolo Bonzini, 2019/01/25
- [Qemu-devel] [PATCH 13/52] hw/s390/Makefile.objs: Create new CONFIG_* variables for s390x boards and devices, Paolo Bonzini, 2019/01/25
- [Qemu-devel] [PATCH 26/52] hw/i2c/Makefile.objs: Create new CONFIG_* variables for EEPROM and ACPI controller, Paolo Bonzini, 2019/01/25
- [Qemu-devel] [PATCH 29/52] minikconfig: add AST, Paolo Bonzini, 2019/01/25
- [Qemu-devel] [PATCH 28/52] minikconfig: add parser skeleton, Paolo Bonzini, 2019/01/25
- [Qemu-devel] [PATCH 33/52] build: switch to Kconfig, Paolo Bonzini, 2019/01/25
- Re: [Qemu-devel] [PATCH 33/52] build: switch to Kconfig,
Philippe Mathieu-Daudé <=
- [Qemu-devel] [PATCH 35/52] ide: express dependencies with Kconfig, Paolo Bonzini, 2019/01/25
- [Qemu-devel] [PATCH 34/52] minikconf: implement allnoconfig and defconfig, Paolo Bonzini, 2019/01/25
- [Qemu-devel] [PATCH 31/52] hw/display: make edid configurable, Paolo Bonzini, 2019/01/25
- [Qemu-devel] [PATCH 40/52] scsi: express dependencies with Kconfig, Paolo Bonzini, 2019/01/25
- [Qemu-devel] [PATCH 39/52] build: convert usb.mak to Kconfig, Paolo Bonzini, 2019/01/25
- [Qemu-devel] [PATCH 43/52] i2c: express dependencies with Kconfig, Paolo Bonzini, 2019/01/25