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-rw-r--r--arch/arm64/Kconfig26
1 files changed, 14 insertions, 12 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 77dfbc8ab2..6b96d75a3a 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -36,6 +36,7 @@ config ARM64
select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE
select ARCH_HAS_PTE_DEVMAP
select ARCH_HAS_PTE_SPECIAL
+ select ARCH_HAS_HW_PTE_YOUNG
select ARCH_HAS_SETUP_DMA_OPS
select ARCH_HAS_SET_DIRECT_MAP
select ARCH_HAS_SET_MEMORY
@@ -132,6 +133,7 @@ config ARM64
select GENERIC_ARCH_TOPOLOGY
select GENERIC_CLOCKEVENTS_BROADCAST
select GENERIC_CPU_AUTOPROBE
+ select GENERIC_CPU_DEVICES
select GENERIC_CPU_VULNERABILITIES
select GENERIC_EARLY_IOREMAP
select GENERIC_IDLE_POLL_SETUP
@@ -154,7 +156,7 @@ config ARM64
select HAVE_MOVE_PUD
select HAVE_PCI
select HAVE_ACPI_APEI if (ACPI && EFI)
- select HAVE_ALIGNED_STRUCT_PAGE if SLUB
+ select HAVE_ALIGNED_STRUCT_PAGE
select HAVE_ARCH_AUDITSYSCALL
select HAVE_ARCH_BITREVERSE
select HAVE_ARCH_COMPILER_H
@@ -1537,15 +1539,15 @@ config XEN
# include/linux/mmzone.h requires the following to be true:
#
-# MAX_ORDER + PAGE_SHIFT <= SECTION_SIZE_BITS
+# MAX_PAGE_ORDER + PAGE_SHIFT <= SECTION_SIZE_BITS
#
-# so the maximum value of MAX_ORDER is SECTION_SIZE_BITS - PAGE_SHIFT:
+# so the maximum value of MAX_PAGE_ORDER is SECTION_SIZE_BITS - PAGE_SHIFT:
#
-# | SECTION_SIZE_BITS | PAGE_SHIFT | max MAX_ORDER | default MAX_ORDER |
-# ----+-------------------+--------------+-----------------+--------------------+
-# 4K | 27 | 12 | 15 | 10 |
-# 16K | 27 | 14 | 13 | 11 |
-# 64K | 29 | 16 | 13 | 13 |
+# | SECTION_SIZE_BITS | PAGE_SHIFT | max MAX_PAGE_ORDER | default MAX_PAGE_ORDER |
+# ----+-------------------+--------------+----------------------+-------------------------+
+# 4K | 27 | 12 | 15 | 10 |
+# 16K | 27 | 14 | 13 | 11 |
+# 64K | 29 | 16 | 13 | 13 |
config ARCH_FORCE_MAX_ORDER
int
default "13" if ARM64_64K_PAGES
@@ -1553,21 +1555,21 @@ config ARCH_FORCE_MAX_ORDER
default "10"
help
The kernel page allocator limits the size of maximal physically
- contiguous allocations. The limit is called MAX_ORDER and it
+ contiguous allocations. The limit is called MAX_PAGE_ORDER and it
defines the maximal power of two of number of pages that can be
allocated as a single contiguous block. This option allows
overriding the default setting when ability to allocate very
large blocks of physically contiguous memory is required.
The maximal size of allocation cannot exceed the size of the
- section, so the value of MAX_ORDER should satisfy
+ section, so the value of MAX_PAGE_ORDER should satisfy
- MAX_ORDER + PAGE_SHIFT <= SECTION_SIZE_BITS
+ MAX_PAGE_ORDER + PAGE_SHIFT <= SECTION_SIZE_BITS
Don't change if unsure.
config UNMAP_KERNEL_AT_EL0
- bool "Unmap kernel when running in userspace (aka \"KAISER\")" if EXPERT
+ bool "Unmap kernel when running in userspace (KPTI)" if EXPERT
default y
help
Speculation attacks against some high-performance processors can