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Date: Tue, 25 Jan 2022 10:14:45 +0100 From: Ard Biesheuvel <ardb@...nel.org> To: linux@...linux.org.uk, linux-arm-kernel@...ts.infradead.org Cc: linux-hardening@...r.kernel.org, Ard Biesheuvel <ardb@...nel.org>, Arnd Bergmann <arnd@...db.de>, Kees Cook <keescook@...omium.org>, Keith Packard <keithpac@...zon.com>, Linus Walleij <linus.walleij@...aro.org>, Nick Desaulniers <ndesaulniers@...gle.com>, Marc Zyngier <maz@...nel.org> Subject: [PATCH v6 0/8] ARM vmap'ed and IRQ stacks roundup This v6 series is a followup to [0], and presents the proposed changes as a set of delta patches against the v4 that was already taken into rmk/devel-stable, and dropped from v5.17 when it turned out that were unresolved issues related to suspend/resume. These patches apply onto rmk/devel-stable directly, which means there is an unresolved conflict with the changes that landed in v5.17-rc1 via the ARM tree: these will need to be handled by the maintainer. Code can be found under the arm-vmap-stacks-v6 tag at git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git [0] https://lore.kernel.org/linux-arm-kernel/20220124174744.1054712-1-ardb@kernel.org/ Cc: Russell King <linux@...linux.org.uk> Cc: Arnd Bergmann <arnd@...db.de> Cc: Kees Cook <keescook@...omium.org> Cc: Keith Packard <keithpac@...zon.com> Cc: Linus Walleij <linus.walleij@...aro.org> Cc: Nick Desaulniers <ndesaulniers@...gle.com> Cc: Marc Zyngier <maz@...nel.org> Ard Biesheuvel (8): ARM: mm: switch to swapper_pg_dir early for vmap'ed stack ARM: assembler: define a Kconfig symbol for group relocation support ARM: smp: elide HWCAP_TLS checks or __entry_task updates on SMP+v6 ARM: entry: avoid clobbering R9 in IRQ handler ARM: mm: make vmalloc_seq handling SMP safe ARM: iop: make iop_handle_irq() static ARM: drop pointless SMP check on secondary startup path ARM: make get_current() and __my_cpu_offset() __always_inline arch/arm/Kconfig | 13 +++++++++- arch/arm/include/asm/assembler.h | 8 +++---- arch/arm/include/asm/current.h | 10 ++++---- arch/arm/include/asm/mmu.h | 2 +- arch/arm/include/asm/mmu_context.h | 22 +++++++++++++++-- arch/arm/include/asm/page.h | 3 +-- arch/arm/include/asm/percpu.h | 6 ++--- arch/arm/include/asm/switch_to.h | 4 ++-- arch/arm/include/asm/tls.h | 22 ++++++++++++----- arch/arm/kernel/entry-armv.S | 9 ++++--- arch/arm/kernel/entry-header.S | 17 ++++++------- arch/arm/kernel/head.S | 7 ++++++ arch/arm/kernel/module.c | 7 +++++- arch/arm/kernel/sleep.S | 7 ++++++ arch/arm/kernel/smp.c | 5 ---- arch/arm/kernel/traps.c | 25 ++++++-------------- arch/arm/mach-iop32x/irq.c | 2 +- arch/arm/mm/context.c | 3 +-- arch/arm/mm/ioremap.c | 18 ++++++++------ 19 files changed, 115 insertions(+), 75 deletions(-) -- 2.30.2
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