[PATCH 03/17] board: Introduce xenguest_arm64 board
Oleksandr Andrushchenko
Oleksandr_Andrushchenko at epam.com
Thu Jul 2 09:18:51 CEST 2020
On 7/2/20 4:28 AM, Peng Fan wrote:
>> Subject: [PATCH 03/17] board: Introduce xenguest_arm64 board
>>
>> From: Andrii Anisov <andrii_anisov at epam.com>
>>
>> Introduce a minimal Xen guest board running as a virtual machine under Xen
>> Project's hypervisor [1], [2].
>>
>> Part of the code is ported from Xen mini-os and also uses work initially done
>> by different authors from NXP: please see relevant files for their copyrights.
> This patch needs to be in the last, otherwise it might break git bisect.
Not sure I understand why. This patch is a self-contained piece of work
which introduces a new board. What's wrong with this? Why would it break?
>
>> [1]
>> https://urldefense.com/v3/__https://eur01.safelinks.protection.outlook.com/?url=https*3A*2F*2Fxenbit__;JSUl!!GF_29dbcQIUBPA!kLvFHwcVni_hKobueMDuGiWwAyUqOyVghhe446DfQrocVMn84Rp1m4EWJM8nHzH0_vEGLuxcEg$
>> s.xen.org%2F&data=02%7C01%7Cpeng.fan%40nxp.com%7C61151b8230
>> c94f145ce408d81ddc04ee%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%
>> 7C0%7C637292178110014498&sdata=pgJ6Qf1iDW%2FjNWTcGBWFVYY
>> SrG0MX%2FiTzbfzbyqkxsY%3D&reserved=0
>> [2]
>> https://urldefense.com/v3/__https://eur01.safelinks.protection.outlook.com/?url=https*3A*2F*2Fwiki.xe__;JSUl!!GF_29dbcQIUBPA!kLvFHwcVni_hKobueMDuGiWwAyUqOyVghhe446DfQrocVMn84Rp1m4EWJM8nHzH0_vFUM7ad7A$
>> nproject.org%2F&data=02%7C01%7Cpeng.fan%40nxp.com%7C61151b8
>> 230c94f145ce408d81ddc04ee%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C
>> 0%7C0%7C637292178110014498&sdata=x0gKBoJvFRQdX7YatAhgF%2Fc
>> ovJ4kdrmbl2iUiXvCqww%3D&reserved=0
>>
>> Signed-off-by: Andrii Anisov <andrii_anisov at epam.com>
>> Signed-off-by: Oleksandr Andrushchenko
>> <oleksandr_andrushchenko at epam.com>
>> Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko at epam.com>
>> ---
>> arch/arm/Kconfig | 7 +
>> arch/arm/cpu/armv8/Makefile | 1 +
>> arch/arm/cpu/armv8/xen/Makefile | 6 +
>> arch/arm/cpu/armv8/xen/hypercall.S | 78 +++++++++++
>> arch/arm/cpu/armv8/xen/lowlevel_init.S | 34 +++++
>> arch/arm/include/asm/xen.h | 8 ++
>> arch/arm/include/asm/xen/hypercall.h | 45 +++++++
>> board/xen/xenguest_arm64/Kconfig | 12 ++
>> board/xen/xenguest_arm64/Makefile | 5 +
>> board/xen/xenguest_arm64/xenguest_arm64.c | 153
>> ++++++++++++++++++++++
>> configs/xenguest_arm64_defconfig | 56 ++++++++
>> include/configs/xenguest_arm64.h | 45 +++++++
>> 12 files changed, 450 insertions(+)
>> create mode 100644 arch/arm/cpu/armv8/xen/Makefile create mode
>> 100644 arch/arm/cpu/armv8/xen/hypercall.S
>> create mode 100644 arch/arm/cpu/armv8/xen/lowlevel_init.S
>> create mode 100644 arch/arm/include/asm/xen.h create mode 100644
>> arch/arm/include/asm/xen/hypercall.h
>> create mode 100644 board/xen/xenguest_arm64/Kconfig create mode
>> 100644 board/xen/xenguest_arm64/Makefile create mode 100644
>> board/xen/xenguest_arm64/xenguest_arm64.c
>> create mode 100644 configs/xenguest_arm64_defconfig create mode
>> 100644 include/configs/xenguest_arm64.h
>>
>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index
>> e9ad716aaa..c469863967 100644
>> --- a/arch/arm/Kconfig
>> +++ b/arch/arm/Kconfig
>> @@ -1717,6 +1717,12 @@ config TARGET_PRESIDIO_ASIC
>> bool "Support Cortina Presidio ASIC Platform"
>> select ARM64
>>
>> +config TARGET_XENGUEST_ARM64
>> + bool "Xen guest ARM64"
>> + select ARM64
>> + select XEN
>> + select OF_CONTROL
>> + select LINUX_KERNEL_IMAGE_HEADER
>> endchoice
>>
>> config ARCH_SUPPORT_TFABOOT
>> @@ -1920,6 +1926,7 @@ source "board/xilinx/Kconfig"
>> source "board/xilinx/zynq/Kconfig"
>> source "board/xilinx/zynqmp/Kconfig"
>> source "board/phytium/durian/Kconfig"
>> +source "board/xen/xenguest_arm64/Kconfig"
>>
>> source "arch/arm/Kconfig.debug"
>>
>> diff --git a/arch/arm/cpu/armv8/Makefile b/arch/arm/cpu/armv8/Makefile
>> index 2e48df0eb9..dd6c354d19 100644
>> --- a/arch/arm/cpu/armv8/Makefile
>> +++ b/arch/arm/cpu/armv8/Makefile
>> @@ -39,3 +39,4 @@ obj-$(CONFIG_S32V234) += s32v234/
>> obj-$(CONFIG_TARGET_HIKEY) += hisilicon/
>> obj-$(CONFIG_ARMV8_PSCI) += psci.o
>> obj-$(CONFIG_ARCH_SUNXI) += lowlevel_init.o
>> +obj-$(CONFIG_XEN) += xen/
>> diff --git a/arch/arm/cpu/armv8/xen/Makefile
>> b/arch/arm/cpu/armv8/xen/Makefile new file mode 100644 index
>> 0000000000..e3b4ae2bd4
>> --- /dev/null
>> +++ b/arch/arm/cpu/armv8/xen/Makefile
>> @@ -0,0 +1,6 @@
>> +# SPDX-License-Identifier: GPL-2.0+
>> +#
>> +# (C) 2018 NXP
>> +# (C) 2020 EPAM Systems Inc.
>> +
>> +obj-y += lowlevel_init.o hypercall.o
>> diff --git a/arch/arm/cpu/armv8/xen/hypercall.S
>> b/arch/arm/cpu/armv8/xen/hypercall.S
>> new file mode 100644
>> index 0000000000..9596e336b5
>> --- /dev/null
>> +++ b/arch/arm/cpu/armv8/xen/hypercall.S
>> @@ -0,0 +1,78 @@
>> +/************************************************************
>> **********
>> +********
>> + * hypercall.S
>> + *
>> + * Xen hypercall wrappers
>> + *
>> + * Stefano Stabellini <stefano.stabellini at eu.citrix.com>, Citrix, 2012
>> + *
>> + * This program is free software; you can redistribute it and/or
>> + * modify it under the terms of the GNU General Public License version
>> +2
>> + * as published by the Free Software Foundation; or, when distributed
>> + * separately from the Linux kernel or incorporated into other
>> + * software packages, subject to the following license:
>> + *
>> + * Permission is hereby granted, free of charge, to any person
>> +obtaining a copy
>> + * of this source file (the "Software"), to deal in the Software
>> +without
>> + * restriction, including without limitation the rights to use, copy,
>> +modify,
>> + * merge, publish, distribute, sublicense, and/or sell copies of the
>> +Software,
>> + * and to permit persons to whom the Software is furnished to do so,
>> +subject to
>> + * the following conditions:
>> + *
>> + * The above copyright notice and this permission notice shall be
>> +included in
>> + * all copies or substantial portions of the Software.
>> + *
>> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
>> KIND,
>> +EXPRESS OR
>> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
>> +MERCHANTABILITY,
>> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO
>> EVENT
>> +SHALL THE
>> + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
>> DAMAGES OR
>> +OTHER
>> + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
>> +ARISING
>> + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
>> OR OTHER
>> +DEALINGS
>> + * IN THE SOFTWARE.
>> + */
>> +
>> +/*
>> + * The Xen hypercall calling convention is very similar to the
>> +procedure
>> + * call standard for the ARM 64-bit architecture: the first parameter
>> +is
>> + * passed in x0, the second in x1, the third in x2, the fourth in x3
>> +and
>> + * the fifth in x4.
>> + *
>> + * The hypercall number is passed in x16.
>> + *
>> + * The return value is in x0.
>> + *
>> + * The hvc ISS is required to be 0xEA1, that is the Xen specific ARM
>> + * hypercall tag.
>> + *
>> + * Parameter structs passed to hypercalls are laid out according to
>> + * the ARM 64-bit EABI standard.
>> + */
>> +
>> +#include <xen/interface/xen.h>
>> +
>> +#define XEN_HYPERCALL_TAG 0xEA1
>> +
>> +#define HYPERCALL_SIMPLE(hypercall) \
>> +.globl HYPERVISOR_##hypercall; \
>> +.align 4,0x90; \
>> +HYPERVISOR_##hypercall: \
>> + mov x16, #__HYPERVISOR_##hypercall; \
>> + hvc XEN_HYPERCALL_TAG; \
>> + ret; \
>> +
>> +#define HYPERCALL0 HYPERCALL_SIMPLE
>> +#define HYPERCALL1 HYPERCALL_SIMPLE
>> +#define HYPERCALL2 HYPERCALL_SIMPLE
>> +#define HYPERCALL3 HYPERCALL_SIMPLE
>> +#define HYPERCALL4 HYPERCALL_SIMPLE
>> +#define HYPERCALL5 HYPERCALL_SIMPLE
>> +
>> + .text
>> +
>> +HYPERCALL2(xen_version);
>> +HYPERCALL3(console_io);
>> +HYPERCALL3(grant_table_op);
>> +HYPERCALL2(sched_op);
>> +HYPERCALL2(event_channel_op);
>> +HYPERCALL2(hvm_op);
>> +HYPERCALL2(memory_op);
>> +
>> diff --git a/arch/arm/cpu/armv8/xen/lowlevel_init.S
>> b/arch/arm/cpu/armv8/xen/lowlevel_init.S
>> new file mode 100644
>> index 0000000000..25ed438e20
>> --- /dev/null
>> +++ b/arch/arm/cpu/armv8/xen/lowlevel_init.S
>> @@ -0,0 +1,34 @@
>> +/*
>> + * SPDX-License-Identifier: GPL-2.0+
>> + *
>> + * (C) 2017 NXP
>> + * (C) 2020 EPAM Systems Inc.
>> + */
>> +
>> +#include <config.h>
>> +
>> +.align 8
>> +.global rom_pointer
>> +rom_pointer:
>> + .space 32
>> +
>> +/*
>> + * Routine: save_boot_params (called after reset from start.S) */
>> +
>> +.global save_boot_params
>> +save_boot_params:
>> + /* The firmware provided ATAG/FDT address can be found in r2/x0 */
>> + adr x1, rom_pointer
>> + stp x0, x2, [x1], #16
>> + stp x3, x4, [x1], #16
>> +
>> + /* Returns */
>> + b save_boot_params_ret
>> +
>> +.global restore_boot_params
>> +restore_boot_params:
>> + adr x1, rom_pointer
>> + ldp x0, x2, [x1], #16
>> + ldp x3, x4, [x1], #16
>> + ret
>> diff --git a/arch/arm/include/asm/xen.h b/arch/arm/include/asm/xen.h new
>> file mode 100644 index 0000000000..fb7f03e19c
>> --- /dev/null
>> +++ b/arch/arm/include/asm/xen.h
>> @@ -0,0 +1,8 @@
>> +/*
>> + * SPDX-License-Identifier: GPL-2.0+
>> + *
>> + * (C) 2020 EPAM Systems Inc.
>> + */
>> +
>> +extern unsigned long rom_pointer[];
>> +
>> diff --git a/arch/arm/include/asm/xen/hypercall.h
>> b/arch/arm/include/asm/xen/hypercall.h
>> new file mode 100644
>> index 0000000000..26644ce886
>> --- /dev/null
>> +++ b/arch/arm/include/asm/xen/hypercall.h
>> @@ -0,0 +1,45 @@
>> +/************************************************************
>> **********
>> +********
>> + * hypercall.h
>> + *
>> + * Linux-specific hypervisor handling.
>> + *
>> + * Stefano Stabellini <stefano.stabellini at eu.citrix.com>, Citrix, 2012
>> + *
>> + * This program is free software; you can redistribute it and/or
>> + * modify it under the terms of the GNU General Public License version
>> +2
>> + * as published by the Free Software Foundation; or, when distributed
>> + * separately from the Linux kernel or incorporated into other
>> + * software packages, subject to the following license:
>> + *
>> + * Permission is hereby granted, free of charge, to any person
>> +obtaining a copy
>> + * of this source file (the "Software"), to deal in the Software
>> +without
>> + * restriction, including without limitation the rights to use, copy,
>> +modify,
>> + * merge, publish, distribute, sublicense, and/or sell copies of the
>> +Software,
>> + * and to permit persons to whom the Software is furnished to do so,
>> +subject to
>> + * the following conditions:
>> + *
>> + * The above copyright notice and this permission notice shall be
>> +included in
>> + * all copies or substantial portions of the Software.
>> + *
>> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
>> KIND,
>> +EXPRESS OR
>> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
>> +MERCHANTABILITY,
>> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO
>> EVENT
>> +SHALL THE
>> + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
>> DAMAGES OR
>> +OTHER
>> + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
>> +ARISING
>> + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
>> OR OTHER
>> +DEALINGS
>> + * IN THE SOFTWARE.
>> + */
>> +
>> +#ifndef _ASM_ARM_XEN_HYPERCALL_H
>> +#define _ASM_ARM_XEN_HYPERCALL_H
>> +
>> +#include <xen/interface/xen.h>
>> +
>> +int HYPERVISOR_xen_version(int cmd, void *arg); int
>> +HYPERVISOR_console_io(int cmd, int count, char *str); int
>> +HYPERVISOR_grant_table_op(unsigned int cmd, void *uop, unsigned int
>> +count); int HYPERVISOR_sched_op(int cmd, void *arg); int
>> +HYPERVISOR_event_channel_op(int cmd, void *arg); unsigned long
>> +HYPERVISOR_hvm_op(int op, void *arg); int
>> HYPERVISOR_memory_op(unsigned
>> +int cmd, void *arg); #endif /* _ASM_ARM_XEN_HYPERCALL_H */
>> diff --git a/board/xen/xenguest_arm64/Kconfig
>> b/board/xen/xenguest_arm64/Kconfig
>> new file mode 100644
>> index 0000000000..cc131ed5b9
>> --- /dev/null
>> +++ b/board/xen/xenguest_arm64/Kconfig
>> @@ -0,0 +1,12 @@
>> +if TARGET_XENGUEST_ARM64
>> +
>> +config SYS_BOARD
>> + default "xenguest_arm64"
>> +
>> +config SYS_VENDOR
>> + default "xen"
>> +
>> +config SYS_CONFIG_NAME
>> + default "xenguest_arm64"
>> +
>> +endif
>> diff --git a/board/xen/xenguest_arm64/Makefile
>> b/board/xen/xenguest_arm64/Makefile
>> new file mode 100644
>> index 0000000000..1cf87a728f
>> --- /dev/null
>> +++ b/board/xen/xenguest_arm64/Makefile
>> @@ -0,0 +1,5 @@
>> +# SPDX-License-Identifier: GPL-2.0+
>> +#
>> +# (C) Copyright 2020 EPAM Systems Inc.
>> +
>> +obj-y := xenguest_arm64.o
>> diff --git a/board/xen/xenguest_arm64/xenguest_arm64.c
>> b/board/xen/xenguest_arm64/xenguest_arm64.c
>> new file mode 100644
>> index 0000000000..9e099f388f
>> --- /dev/null
>> +++ b/board/xen/xenguest_arm64/xenguest_arm64.c
>> @@ -0,0 +1,153 @@
>> +/*
>> + * SPDX-License-Identifier: GPL-2.0+
>> + *
>> + * (C) 2013
>> + * David Feng <fenghua at phytium.com.cn>
>> + * Sharma Bhupesh <bhupesh.sharma at freescale.com>
>> + *
>> + * (C) 2020 EPAM Systems Inc
>> + */
>> +
>> +#include <common.h>
>> +#include <cpu_func.h>
>> +#include <dm.h>
>> +#include <errno.h>
>> +#include <malloc.h>
>> +
>> +#include <asm/io.h>
>> +#include <asm/armv8/mmu.h>
>> +#include <asm/xen.h>
>> +#include <asm/xen/hypercall.h>
>> +
>> +#include <linux/compiler.h>
>> +
>> +DECLARE_GLOBAL_DATA_PTR;
>> +
>> +int board_init(void)
>> +{
>> + return 0;
>> +}
>> +
>> +/*
>> + * Use fdt provided by Xen: according to
>> + *
>> +https://urldefense.com/v3/__https://eur01.safelinks.protection.outlook.com/?url=https*3A*2F*2Fwww__;JSUl!!GF_29dbcQIUBPA!kLvFHwcVni_hKobueMDuGiWwAyUqOyVghhe446DfQrocVMn84Rp1m4EWJM8nHzH0_vGd4Bu7GQ$
>> .k
>> +ernel.org%2Fdoc%2FDocumentation%2Farm64%2Fbooting.txt&data=0
>> 2%7C01%
>> +7Cpeng.fan%40nxp.com%7C61151b8230c94f145ce408d81ddc04ee%7C686
>> ea1d3bc2b4
>> +c6fa92cd99c5c301635%7C0%7C0%7C637292178110014498&sdata=3t
>> i9j4nAzNSw
>> +xsmZs8rONDmPLNbGx89HYBsezkgD%2FVI%3D&reserved=0
>> + * x0 is the physical address of the device tree blob (dtb) in system RAM.
>> + * This is stored in rom_pointer during low level init.
>> + */
>> +void *board_fdt_blob_setup(void)
>> +{
>> + if (fdt_magic(rom_pointer[0]) != FDT_MAGIC)
>> + return NULL;
>> + return (void *)rom_pointer[0];
>> +}
>> +
>> +#define MAX_MEM_MAP_REGIONS 5
>> +static struct mm_region xen_mem_map[MAX_MEM_MAP_REGIONS]; struct
>> +mm_region *mem_map = xen_mem_map;
>> +
>> +static int get_next_memory_node(const void *blob, int mem) {
>> + do {
>> + mem = fdt_node_offset_by_prop_value(blob, mem,
>> + "device_type", "memory", 7);
>> + } while (!fdtdec_get_is_enabled(blob, mem));
>> +
>> + return mem;
>> +}
>> +
>> +static int setup_mem_map(void)
>> +{
>> + int i, ret, mem, reg = 0;
>> + struct fdt_resource res;
>> + const void *blob = gd->fdt_blob;
>> +
>> + mem = get_next_memory_node(blob, -1);
>> + if (mem < 0) {
>> + printf("%s: Missing /memory node\n", __func__);
>> + return -EINVAL;
>> + }
>> +
>> + for (i = 0; i < MAX_MEM_MAP_REGIONS; i++) {
>> + ret = fdt_get_resource(blob, mem, "reg", reg++, &res);
>> + if (ret == -FDT_ERR_NOTFOUND) {
>> + reg = 0;
>> + mem = get_next_memory_node(blob, mem);
>> + if (mem == -FDT_ERR_NOTFOUND)
>> + break;
>> +
>> + ret = fdt_get_resource(blob, mem, "reg", reg++, &res);
>> + if (ret == -FDT_ERR_NOTFOUND)
>> + break;
>> + }
>> + if (ret != 0) {
>> + printf("No reg property for memory node\n");
>> + return -EINVAL;
>> + }
>> +
>> + xen_mem_map[i].virt = (phys_addr_t)res.start;
>> + xen_mem_map[i].phys = (phys_addr_t)res.start;
>> + xen_mem_map[i].size = (phys_size_t)(res.end - res.start + 1);
>> + xen_mem_map[i].attrs = (PTE_BLOCK_MEMTYPE(MT_NORMAL) |
>> + PTE_BLOCK_INNER_SHARE);
>> + }
>> + return 0;
>> +}
>> +
>> +void enable_caches(void)
>> +{
>> + /* Re-setup the memory map as BSS gets cleared after relocation. */
>> + setup_mem_map();
>> + icache_enable();
>> + dcache_enable();
>> +}
>> +
>> +/* Read memory settings from the Xen provided device tree. */ int
>> +dram_init(void) {
>> + int ret;
>> +
>> + ret = fdtdec_setup_mem_size_base();
>> + if (ret < 0)
>> + return ret;
>> + /* Setup memory map, so MMU page table size can be estimated. */
>> + return setup_mem_map();
>> +}
>> +
>> +int dram_init_banksize(void)
>> +{
>> + return fdtdec_setup_memory_banksize(); }
>> +
>> +/*
>> + * Board specific reset that is system reset.
>> + */
>> +void reset_cpu(ulong addr)
>> +{
>> +}
>> +
>> +int ft_system_setup(void *blob, bd_t *bd) {
>> + return 0;
>> +}
>> +
>> +int ft_board_setup(void *blob, bd_t *bd) {
>> + return 0;
>> +}
>> +
>> +int board_early_init_f(void)
>> +{
>> + return 0;
>> +}
> Drop the upper three functions if not needed.
>
>> +
>> +int print_cpuinfo(void)
>> +{
>> + printf("Xen virtual CPU\n");
>> + return 0;
>> +}
>> +
>> +__weak struct serial_device *default_serial_console(void) {
>> + return NULL;
>> +}
>> +
>> diff --git a/configs/xenguest_arm64_defconfig
>> b/configs/xenguest_arm64_defconfig
>> new file mode 100644
>> index 0000000000..2a8caf8647
>> --- /dev/null
>> +++ b/configs/xenguest_arm64_defconfig
>> @@ -0,0 +1,56 @@
>> +CONFIG_ARM=y
>> +CONFIG_POSITION_INDEPENDENT=y
>> +CONFIG_SYS_TEXT_BASE=0x40080000
>> +CONFIG_SYS_MALLOC_F_LEN=0x2000
>> +CONFIG_IDENT_STRING=" xenguest"
>> +CONFIG_TARGET_XENGUEST_ARM64=y
>> +CONFIG_BOOTDELAY=10
> 10s?
>
> Regards,
> Peng.
>> +
>> +CONFIG_SYS_PROMPT="xenguest# "
>> +
>> +CONFIG_CMD_NET=n
>> +CONFIG_CMD_BDI=n
>> +CONFIG_CMD_BOOTD=n
>> +CONFIG_CMD_BOOTEFI=n
>> +CONFIG_CMD_BOOTEFI_HELLO_COMPILE=n
>> +CONFIG_CMD_ELF=n
>> +CONFIG_CMD_GO=n
>> +CONFIG_CMD_RUN=n
>> +CONFIG_CMD_IMI=n
>> +CONFIG_CMD_IMLS=n
>> +CONFIG_CMD_XIMG=n
>> +CONFIG_CMD_EXPORTENV=n
>> +CONFIG_CMD_IMPORTENV=n
>> +CONFIG_CMD_EDITENV=n
>> +CONFIG_CMD_ENV_EXISTS=n
>> +CONFIG_CMD_MEMORY=y
>> +CONFIG_CMD_CRC32=n
>> +CONFIG_CMD_DM=n
>> +CONFIG_CMD_LOADB=n
>> +CONFIG_CMD_LOADS=n
>> +CONFIG_CMD_FLASH=n
>> +CONFIG_CMD_GPT=n
>> +CONFIG_CMD_FPGA=n
>> +CONFIG_CMD_ECHO=n
>> +CONFIG_CMD_ITEST=n
>> +CONFIG_CMD_SOURCE=n
>> +CONFIG_CMD_SETEXPR=n
>> +CONFIG_CMD_MISC=n
>> +CONFIG_CMD_UNZIP=n
>> +CONFIG_CMD_LZMADEC=n
>> +CONFIG_CMD_SAVEENV=n
>> +CONFIG_CMD_UMS=n
>> +
>> +#CONFIG_USB=n
>> +# CONFIG_ISO_PARTITION is not set
>> +
>> +#CONFIG_EFI_PARTITION=y
>> +# CONFIG_EFI_LOADER is not set
>> +
>> +# CONFIG_DM is not set
>> +# CONFIG_MMC is not set
>> +# CONFIG_DM_SERIAL is not set
>> +# CONFIG_REQUIRE_SERIAL_CONSOLE is not set
>> +
>> +CONFIG_OF_BOARD=y
>> +CONFIG_OF_LIBFDT=y
>> diff --git a/include/configs/xenguest_arm64.h
>> b/include/configs/xenguest_arm64.h
>> new file mode 100644
>> index 0000000000..467dabf1e5
>> --- /dev/null
>> +++ b/include/configs/xenguest_arm64.h
>> @@ -0,0 +1,45 @@
>> +/*
>> + * SPDX-License-Identifier: GPL-2.0+
>> + *
>> + * (C) Copyright 2020 EPAM Systemc Inc.
>> + */
>> +#ifndef __XENGUEST_ARM64_H
>> +#define __XENGUEST_ARM64_H
>> +
>> +#ifndef __ASSEMBLY__
>> +#include <linux/types.h>
>> +#endif
>> +
>> +#define CONFIG_BOARD_EARLY_INIT_F
>> +
>> +#define CONFIG_EXTRA_ENV_SETTINGS
>> +
>> +#undef CONFIG_NR_DRAM_BANKS
>> +#undef CONFIG_SYS_SDRAM_BASE
>> +
>> +#define CONFIG_NR_DRAM_BANKS 1
>> +
>> +/*
>> + * This can be any arbitrary address as we are using PIE, but
>> + * please note, that CONFIG_SYS_TEXT_BASE must match the below.
>> + */
>> +#define CONFIG_SYS_LOAD_ADDR 0x40000000
>> +#define CONFIG_LNX_KRNL_IMG_TEXT_OFFSET_BASE
>> CONFIG_SYS_LOAD_ADDR
>> +
>> +/* Size of malloc() pool */
>> +#define CONFIG_SYS_MALLOC_LEN (32 * 1024 * 1024)
>> +
>> +/* Monitor Command Prompt */
>> +#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
>> +#define CONFIG_SYS_CBSIZE 1024
>> +#define CONFIG_SYS_MAXARGS 64
>> +#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
>> +#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
>> + sizeof(CONFIG_SYS_PROMPT) + 16)
>> +
>> +#define CONFIG_OF_SYSTEM_SETUP
>> +
>> +#define CONFIG_CMDLINE_TAG 1
>> +#define CONFIG_INITRD_TAG 1
>> +
>> +#endif /* __XENGUEST_ARM64_H */
>> --
>> 2.17.1
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