boards: rv-virt: Add ksmp64 configuration

Summary:
- This commit adds ksmp64 configuration to test BUILD_KERNEL+SMP
- NOTE: README.txt has been updated

Impact:
- None

Testing:
- Tested with QEMU 6.2

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>

boards/risc-v/qemu-rv/rv-virt/README.txt

@@ -22,11 +22,11 @@
 
 4. Run the nuttx with qemu
 
-  $ qemu-system-riscv32 -semihosting -M virt -cpu rv32 -smp 8 -bios none -kernel nuttx -nographic
+  $ qemu-system-riscv32 -semihosting -M virt,aclint=on -cpu rv32 -smp 8 -bios none -kernel nuttx -nographic
 
   or
 
-  $ qemu-system-riscv64 -semihosting -M virt -cpu rv64 -smp 8 -bios none -kernel nuttx -nographic
+  $ qemu-system-riscv64 -semihosting -M virt,aclint=on -cpu rv64 -smp 8 -bios none -kernel nuttx -nographic
 
   NuttShell (NSH) NuttX-10.3.0-RC1
   nsh> mount -t hostfs -o fs=. /host

boards/risc-v/qemu-rv/rv-virt/configs/ksmp64/defconfig

@@ -0,0 +1,94 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_DISABLE_OS_API is not set
+# CONFIG_NSH_DISABLE_LOSMART is not set
+CONFIG_16550_ADDRWIDTH=0
+CONFIG_16550_UART0=y
+CONFIG_16550_UART0_BASE=0x10000000
+CONFIG_16550_UART0_CLOCK=3686400
+CONFIG_16550_UART0_IRQ=35
+CONFIG_16550_UART0_SERIAL_CONSOLE=y
+CONFIG_16550_UART=y
+CONFIG_ARCH="risc-v"
+CONFIG_ARCH_ADDRENV=y
+CONFIG_ARCH_BOARD="rv-virt"
+CONFIG_ARCH_BOARD_QEMU_RV_VIRT=y
+CONFIG_ARCH_CHIP="qemu-rv"
+CONFIG_ARCH_CHIP_QEMU_RV64=y
+CONFIG_ARCH_CHIP_QEMU_RV=y
+CONFIG_ARCH_CHIP_QEMU_RV_ISA_A=y
+CONFIG_ARCH_CHIP_QEMU_RV_ISA_C=y
+CONFIG_ARCH_CHIP_QEMU_RV_ISA_M=y
+CONFIG_ARCH_DATA_NPAGES=128
+CONFIG_ARCH_DATA_VBASE=0xC0100000
+CONFIG_ARCH_HEAP_NPAGES=128
+CONFIG_ARCH_HEAP_VBASE=0xC0200000
+CONFIG_ARCH_INTERRUPTSTACK=2048
+CONFIG_ARCH_KERNEL_STACKSIZE=3072
+CONFIG_ARCH_PGPOOL_MAPPING=y
+CONFIG_ARCH_PGPOOL_PBASE=0x80400000
+CONFIG_ARCH_PGPOOL_SIZE=4194304
+CONFIG_ARCH_PGPOOL_VBASE=0x80400000
+CONFIG_ARCH_RISCV=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_ARCH_TEXT_NPAGES=128
+CONFIG_ARCH_TEXT_VBASE=0xC0000000
+CONFIG_ARCH_USE_MMU=y
+CONFIG_ARCH_USE_MPU=y
+CONFIG_ARCH_USE_S_MODE=y
+CONFIG_BOARD_LOOPSPERMSEC=6366
+CONFIG_BUILD_KERNEL=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DEV_ZERO=y
+CONFIG_ELF=y
+CONFIG_ELF_STACKSIZE=3072
+CONFIG_EXAMPLES_HELLO=m
+CONFIG_FS_HOSTFS=y
+CONFIG_FS_PROCFS=y
+CONFIG_IDLETHREAD_STACKSIZE=3072
+CONFIG_INIT_FILEPATH="/system/bin/init"
+CONFIG_INIT_MOUNT=y
+CONFIG_INIT_MOUNT_DATA="fs=../apps"
+CONFIG_INIT_MOUNT_FLAGS=0x1
+CONFIG_INIT_MOUNT_FSTYPE="hostfs"
+CONFIG_INIT_MOUNT_SOURCE=""
+CONFIG_INIT_MOUNT_TARGET="/system"
+CONFIG_INIT_STACKSIZE=3072
+CONFIG_INTELHEX_BINARY=y
+CONFIG_LIBC_ENVPATH=y
+CONFIG_LIBC_EXECFUNCS=y
+CONFIG_LIBC_PERROR_STDOUT=y
+CONFIG_LIBC_STRERROR=y
+CONFIG_MEMSET_64BIT=y
+CONFIG_MEMSET_OPTSPEED=y
+CONFIG_MM_PGALLOC=y
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_FILEIOSIZE=512
+CONFIG_NSH_FILE_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_PATH_INITIAL="/system/bin"
+CONFIG_RAM_SIZE=1048576
+CONFIG_RAM_START=0x80100000
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_RISCV_SEMIHOSTING_HOSTFS=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_SERIAL_UART_ARCH_MMIO=y
+CONFIG_SMP=y
+CONFIG_STACK_COLORATION=y
+CONFIG_START_DAY=7
+CONFIG_START_MONTH=10
+CONFIG_START_YEAR=2022
+CONFIG_SYMTAB_ORDEREDBYNAME=y
+CONFIG_SYSLOG_TIMESTAMP=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_SYSTEM_NSH_PROGNAME="init"
+CONFIG_TESTING_GETPRIME=y
+CONFIG_TESTING_SMP=y