linux/arch/arm64
Will Deacon 01d57485fc arm64: tlbflush: Ensure start/end of address range are aligned to stride
Since commit 3d65b6bbc0 ("arm64: tlbi: Set MAX_TLBI_OPS to
PTRS_PER_PTE"), we resort to per-ASID invalidation when attempting to
perform more than PTRS_PER_PTE invalidation instructions in a single
call to __flush_tlb_range(). Whilst this is beneficial, the mmu_gather
code does not ensure that the end address of the range is rounded-up
to the stride when freeing intermediate page tables in pXX_free_tlb(),
which defeats our range checking.

Align the bounds passed into __flush_tlb_range().

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Reported-by: Hanjun Guo <guohanjun@huawei.com>
Tested-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-06-12 16:19:45 +01:00
..
boot arm64: dts: sprd: Add clock properties for serial devices 2019-05-16 14:43:33 -07:00
configs ARM: SoC defconfig updates 2019-05-16 09:35:26 -07:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2019-05-06 20:15:06 -07:00
include arm64: tlbflush: Ensure start/end of address range are aligned to stride 2019-06-12 16:19:45 +01:00
kernel arm64: cpufeature: Fix missing ZFR0 in __read_sysreg_by_encoding() 2019-06-05 13:05:28 +01:00
kvm * ARM: support for SVE and Pointer Authentication in guests, PMU improvements 2019-05-17 10:33:30 -07:00
lib arm64: Makefile: Replace -pg with CC_FLAGS_FTRACE 2019-04-09 10:34:59 +01:00
mm arm64: errata: Add workaround for Cortex-A76 erratum #1463225 2019-05-23 11:38:10 +01:00
net bpf, arm64: use more scalable stadd over ldxr / stxr loop in xadd 2019-04-26 18:53:40 -07:00
xen arm64: mm: Add additional parameter to uaccess_ttbr0_disable 2018-01-17 13:57:49 +01:00
Kconfig arm64: Kconfig: Make ARM64_PSEUDO_NMI depend on BROKEN for now 2019-05-24 14:58:19 +01:00
Kconfig.debug Kconfig: consolidate the "Kernel hacking" menu 2018-08-02 08:06:48 +09:00
Kconfig.platforms Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-19 10:58:45 -07:00
Makefile arm64: Don't unconditionally add -Wno-psabi to KBUILD_CFLAGS 2019-06-12 10:54:47 +01:00