Reviewed-by: Xiongfeng Wang <wangxiongfeng2@huawei.com> On 2021/3/24 15:29, sangyan@huawei.com wrote:

From: Sang Yan <sangyan@huawei.com>

hulk inclusion category: feature bugzilla: 48159 CVE: N/A

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Move config of ARM64_CPU_PARK into menu "Kernel features" and beside CRASH_DUMP.

Move config of ARM64_PMEM_RESERVE ARM64_PMEM_LEGACY_DEVICE into menu "Kernel features".

Signed-off-by: Sang Yan <sangyan@huawei.com> --- arch/arm64/Kconfig | 66 +++++++++++++++++----------------- arch/arm64/configs/openeuler_defconfig | 6 ++-- 2 files changed, 36 insertions(+), 36 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 326f26d..72c7ce3 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -345,42 +345,9 @@ config KASAN_SHADOW_OFFSET default 0xeffffff900000000 if ARM64_VA_BITS_36 && KASAN_SW_TAGS default 0xffffffffffffffff

-config ARM64_CPU_PARK - bool "Support CPU PARK on kexec" - depends on SMP - depends on KEXEC_CORE - help - This enables support for CPU PARK feature in - order to save time of cpu down to up. - CPU park is a state through kexec, spin loop - instead of cpu die before jumping to new kernel, - jumping out from loop to new kernel entry in - smp_init. - config ARCH_HAS_CPU_RELAX def_bool y

-config ARM64_PMEM_RESERVE - bool "Reserve memory for persistent storage" - default n - help - Use memmap=nn[KMG]!ss[KMG](memmap=100K!0x1a0000000) reserve - memory for persistent storage. - - Say y here to enable this feature. - -config ARM64_PMEM_LEGACY_DEVICE - bool "Create persistent storage" - depends on BLK_DEV - depends on LIBNVDIMM - select ARM64_PMEM_RESERVE - help - Use reserved memory for persistent storage when the kernel - restart or update. the data in PMEM will not be lost and - can be loaded faster. - - Say y if unsure. - source "arch/arm64/Kconfig.platforms"

menu "Kernel Features" @@ -1196,6 +1163,18 @@ config CRASH_DUMP

For more details see Documentation/admin-guide/kdump/kdump.rst

+config ARM64_CPU_PARK + bool "Support CPU PARK on kexec" + depends on SMP + depends on KEXEC_CORE + help + This enables support for CPU PARK feature in + order to save time of cpu down to up. + CPU park is a state through kexec, spin loop + instead of cpu die before jumping to new kernel, + jumping out from loop to new kernel entry in + smp_init. + config XEN_DOM0 def_bool y depends on XEN @@ -1257,6 +1236,27 @@ config RODATA_FULL_DEFAULT_ENABLED This requires the linear region to be mapped down to pages, which may adversely affect performance in some cases.

+config ARM64_PMEM_RESERVE + bool "Reserve memory for persistent storage" + default n + help + Use memmap=nn[KMG]!ss[KMG](memmap=100K!0x1a0000000) reserve + memory for persistent storage. + + Say y here to enable this feature. + +config ARM64_PMEM_LEGACY_DEVICE + bool "Create persistent storage" + depends on BLK_DEV + depends on LIBNVDIMM + select ARM64_PMEM_RESERVE + help + Use reserved memory for persistent storage when the kernel + restart or update. the data in PMEM will not be lost and + can be loaded faster. + + Say y if unsure. + config ARM64_SW_TTBR0_PAN bool "Emulate Privileged Access Never using TTBR0_EL1 switching" help diff --git a/arch/arm64/configs/openeuler_defconfig b/arch/arm64/configs/openeuler_defconfig index 21c5d11..1aedaf3 100644 --- a/arch/arm64/configs/openeuler_defconfig +++ b/arch/arm64/configs/openeuler_defconfig @@ -275,9 +275,6 @@ CONFIG_FIX_EARLYCON_MEM=y CONFIG_PGTABLE_LEVELS=3 CONFIG_ARCH_SUPPORTS_UPROBES=y CONFIG_ARCH_PROC_KCORE_TEXT=y -CONFIG_ARM64_CPU_PARK=y -CONFIG_ARM64_PMEM_RESERVE=y -CONFIG_ARM64_PMEM_LEGACY_DEVICE=y

# # Platform selection @@ -407,10 +404,13 @@ CONFIG_PARAVIRT_TIME_ACCOUNTING=y CONFIG_KEXEC=y # CONFIG_KEXEC_FILE is not set CONFIG_CRASH_DUMP=y +CONFIG_ARM64_CPU_PARK=y # CONFIG_XEN is not set CONFIG_FORCE_MAX_ZONEORDER=14 CONFIG_UNMAP_KERNEL_AT_EL0=y CONFIG_RODATA_FULL_DEFAULT_ENABLED=y +CONFIG_ARM64_PMEM_RESERVE=y +CONFIG_ARM64_PMEM_LEGACY_DEVICE=y # CONFIG_ARM64_SW_TTBR0_PAN is not set CONFIG_ARM64_TAGGED_ADDR_ABI=y CONFIG_ARM64_ILP32=y