[OE-core] [OE-Core][PATCH 1/3] qemuarma15: ARM A15 Support

[Randy MacLeod]

On 1/18/19 5:17 PM, Jon Mason wrote:
> Add new QEMU BSP for a Arm Cortex-A15 system.  This uses the QEMU virt
> machine type, which should be faster to emulate.
> 
> Signed-off-by: Jon Mason <jdmason at kudzu.us>
> ---
>   meta/conf/machine/qemuarma15.conf             | 26 +++++++++++++++++++
>   .../linux/linux-yocto-rt_4.19.bb              |  2 +-
>   .../linux/linux-yocto-tiny_4.19.bb            |  2 +-
>   meta/recipes-kernel/linux/linux-yocto_4.19.bb |  2 +-
>   4 files changed, 29 insertions(+), 3 deletions(-)
>   create mode 100644 meta/conf/machine/qemuarma15.conf
> 
> diff --git a/meta/conf/machine/qemuarma15.conf b/meta/conf/machine/qemuarma15.conf
> new file mode 100644
> index 0000000000..f1c2246ebf
> --- /dev/null
> +++ b/meta/conf/machine/qemuarma15.conf
> @@ -0,0 +1,26 @@
> +#@TYPE: Machine
> +#@NAME: generic Arm Cortex-A15 machine
> +#@DESCRIPTION: Machine configuration for running a generic armv7
> +
> +require conf/machine/include/tune-cortexa15.inc
> +require conf/machine/include/qemu.inc
> +
> +KERNEL_IMAGETYPE = "zImage"
> +
> +SERIAL_CONSOLES ?= "115200;ttyAMA0 115200;hvc0"
> +
> +# For runqemu
> +QB_SYSTEM_NAME = "qemu-system-arm"
> +QB_MEM = "-m 512"
> +QB_MACHINE = "-machine virt"
> +QB_CPU = "-cpu cortex-a15 -smp 8"

The other qemu .conf files do not specify smp so we should probably
drop it here too.

Typically it's an option for runqemu:
   $ runqemu foo bar qemuparams="-smp 8"

If you do want to keep if for some reason, 2 or 4 may be better
choices for people with modest build/test machines.

../Randy

> +# We need both ttyAMA0 and hvc0 to allow for this to work in the stdio mode or the normal mode
> +QB_KERNEL_CMDLINE_APPEND = "console=ttyAMA0,115200 console=hvc0,115200"
> +QB_OPT_APPEND = "-show-cursor -device virtio-rng-pci -monitor null"
> +QB_TAP_OPT = "-netdev tap,id=net0,ifname=@TAP@,script=no,downscript=no"
> +QB_NETWORK_DEVICE = "-device virtio-net-device,netdev=net0,mac=@MAC@"
> +QB_ROOTFS_OPT = "-drive id=disk0,file=@ROOTFS@,if=none,format=raw -device virtio-blk-device,drive=disk0"
> +QB_SERIAL_OPT = "-device virtio-serial-device -chardev vc,id=virtcon -device virtconsole,chardev=virtcon"
> +QB_TCPSERIAL_OPT = " -device virtio-serial-device -chardev socket,id=virtcon,port=@PORT@,host=127.0.0.1 -device virtconsole,chardev=virtcon"
> +
> +PREFERRED_VERSION_linux-yocto ?= "4.19%"
> diff --git a/meta/recipes-kernel/linux/linux-yocto-rt_4.19.bb b/meta/recipes-kernel/linux/linux-yocto-rt_4.19.bb
> index 4a987d52c0..89b6c8db86 100644
> --- a/meta/recipes-kernel/linux/linux-yocto-rt_4.19.bb
> +++ b/meta/recipes-kernel/linux/linux-yocto-rt_4.19.bb
> @@ -31,7 +31,7 @@ KCONF_BSP_AUDIT_LEVEL = "2"
>   
>   LINUX_KERNEL_TYPE = "preempt-rt"
>   
> -COMPATIBLE_MACHINE = "(qemux86|qemux86-64|qemuarm|qemuarm64|qemuppc|qemumips)"
> +COMPATIBLE_MACHINE = "(qemux86|qemux86-64|qemuarm|qemuarma15|qemuarm64|qemuppc|qemumips)"
>   
>   KERNEL_DEVICETREE_qemuarm = "versatile-pb.dtb"
>   
> diff --git a/meta/recipes-kernel/linux/linux-yocto-tiny_4.19.bb b/meta/recipes-kernel/linux/linux-yocto-tiny_4.19.bb
> index 8506f7c880..e1ab7017cf 100644
> --- a/meta/recipes-kernel/linux/linux-yocto-tiny_4.19.bb
> +++ b/meta/recipes-kernel/linux/linux-yocto-tiny_4.19.bb
> @@ -24,7 +24,7 @@ PV = "${LINUX_VERSION}+git${SRCPV}"
>   SRC_URI = "git://git.yoctoproject.org/linux-yocto.git;branch=${KBRANCH};name=machine \
>              git://git.yoctoproject.org/yocto-kernel-cache;type=kmeta;name=meta;branch=yocto-4.19;destsuffix=${KMETA}"
>   
> -COMPATIBLE_MACHINE = "qemux86|qemux86-64|qemuarm"
> +COMPATIBLE_MACHINE = "qemux86|qemux86-64|qemuarm|qemuarma15"
>   
>   # Functionality flags
>   KERNEL_FEATURES = ""
> diff --git a/meta/recipes-kernel/linux/linux-yocto_4.19.bb b/meta/recipes-kernel/linux/linux-yocto_4.19.bb
> index bd9b6a3543..81fceee98f 100644
> --- a/meta/recipes-kernel/linux/linux-yocto_4.19.bb
> +++ b/meta/recipes-kernel/linux/linux-yocto_4.19.bb
> @@ -37,7 +37,7 @@ KCONF_BSP_AUDIT_LEVEL = "2"
>   
>   KERNEL_DEVICETREE_qemuarm = "versatile-pb.dtb"
>   
> -COMPATIBLE_MACHINE = "qemuarm|qemuarm64|qemux86|qemuppc|qemumips|qemumips64|qemux86-64"
> +COMPATIBLE_MACHINE = "qemuarm|qemuarma15|qemuarm64|qemux86|qemuppc|qemumips|qemumips64|qemux86-64"
>   
>   # Functionality flags
>   KERNEL_EXTRA_FEATURES ?= "features/netfilter/netfilter.scc"
> 


-- 
# Randy MacLeod
# Wind River Linux