From: Anshuman Khandual <anshuman.khandual@arm.com> To: linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org Cc: Anshuman Khandual <anshuman.khandual@arm.com>, Andrew Morton <akpm@linux-foundation.org>, Will Deacon <will.deacon@arm.com>, Toshi Kani <toshi.kani@hpe.com>, Thomas Gleixner <tglx@linutronix.de>, Catalin Marinas <catalin.marinas@arm.com>, Mark Rutland <mark.rutland@arm.com>, James Morse <james.morse@arm.com>, Chintan Pandya <cpandya@codeaurora.org>, Robin Murphy <robin.murphy@arm.com>, Laura Abbott <labbott@redhat.com> Subject: [PATCH V3 0/2] mm/ioremap: Check virtual address alignment Date: Thu, 9 May 2019 10:16:15 +0530 [thread overview] Message-ID: <1557377177-20695-1-git-send-email-anshuman.khandual@arm.com> (raw) This series makes sure that ioremap_page_range()'s input virtual address alignment is checked along with physical address before creating huge page kernel mappings to avoid problems related to random freeing of PMD or PTE pgtable pages potentially with existing valid entries. It also cleans up arm64 pgtable page address offset in [pud|pmd]_free_[pmd|pte]_page(). Changes in V3: - Added virtual address alignment check in ioremap_page_range() - Dropped VM_WARN_ONCE() as input virtual addresses are aligned for sure Changes in V2: (https://patchwork.kernel.org/patch/10922795/) - Replaced WARN_ON_ONCE() with VM_WARN_ONCE() as per Catalin Changes in V1: (https://patchwork.kernel.org/patch/10921135/) Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Will Deacon <will.deacon@arm.com> Cc: Toshi Kani <toshi.kani@hpe.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: James Morse <james.morse@arm.com> Cc: Chintan Pandya <cpandya@codeaurora.org> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Laura Abbott <labbott@redhat.com> Anshuman Khandual (2): mm/ioremap: Check virtual address alignment while creating huge mappings arm64/mm: Change offset base address in [pud|pmd]_free_[pmd|pte]_page() arch/arm64/mm/mmu.c | 6 +++--- lib/ioremap.c | 6 ++++++ 2 files changed, 9 insertions(+), 3 deletions(-) -- 2.20.1
WARNING: multiple messages have this Message-ID (diff)
From: Anshuman Khandual <anshuman.khandual@arm.com> To: linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org Cc: Mark Rutland <mark.rutland@arm.com>, Toshi Kani <toshi.kani@hpe.com>, Anshuman Khandual <anshuman.khandual@arm.com>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will.deacon@arm.com>, James Morse <james.morse@arm.com>, Chintan Pandya <cpandya@codeaurora.org>, Andrew Morton <akpm@linux-foundation.org>, Laura Abbott <labbott@redhat.com>, Robin Murphy <robin.murphy@arm.com>, Thomas Gleixner <tglx@linutronix.de> Subject: [PATCH V3 0/2] mm/ioremap: Check virtual address alignment Date: Thu, 9 May 2019 10:16:15 +0530 [thread overview] Message-ID: <1557377177-20695-1-git-send-email-anshuman.khandual@arm.com> (raw) This series makes sure that ioremap_page_range()'s input virtual address alignment is checked along with physical address before creating huge page kernel mappings to avoid problems related to random freeing of PMD or PTE pgtable pages potentially with existing valid entries. It also cleans up arm64 pgtable page address offset in [pud|pmd]_free_[pmd|pte]_page(). Changes in V3: - Added virtual address alignment check in ioremap_page_range() - Dropped VM_WARN_ONCE() as input virtual addresses are aligned for sure Changes in V2: (https://patchwork.kernel.org/patch/10922795/) - Replaced WARN_ON_ONCE() with VM_WARN_ONCE() as per Catalin Changes in V1: (https://patchwork.kernel.org/patch/10921135/) Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Will Deacon <will.deacon@arm.com> Cc: Toshi Kani <toshi.kani@hpe.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: James Morse <james.morse@arm.com> Cc: Chintan Pandya <cpandya@codeaurora.org> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Laura Abbott <labbott@redhat.com> Anshuman Khandual (2): mm/ioremap: Check virtual address alignment while creating huge mappings arm64/mm: Change offset base address in [pud|pmd]_free_[pmd|pte]_page() arch/arm64/mm/mmu.c | 6 +++--- lib/ioremap.c | 6 ++++++ 2 files changed, 9 insertions(+), 3 deletions(-) -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2019-05-09 4:46 UTC|newest] Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-05-09 4:46 Anshuman Khandual [this message] 2019-05-09 4:46 ` [PATCH V3 0/2] mm/ioremap: Check virtual address alignment Anshuman Khandual 2019-05-09 4:46 ` [PATCH V3 1/2] mm/ioremap: Check virtual address alignment while creating huge mappings Anshuman Khandual 2019-05-09 4:46 ` Anshuman Khandual 2019-05-13 22:26 ` Kani, Toshi 2019-05-13 22:26 ` Kani, Toshi 2019-05-14 5:55 ` Anshuman Khandual 2019-05-14 5:55 ` Anshuman Khandual 2019-05-15 2:35 ` [PATCH V4] " Anshuman Khandual 2019-05-15 2:35 ` Anshuman Khandual 2019-05-15 9:46 ` Will Deacon 2019-05-15 9:46 ` Will Deacon 2019-05-15 10:10 ` Anshuman Khandual 2019-05-15 10:10 ` Anshuman Khandual 2019-05-16 18:38 ` Kani, Toshi 2019-05-16 18:38 ` Kani, Toshi 2019-06-06 13:51 ` Catalin Marinas 2019-06-06 13:51 ` Catalin Marinas 2019-05-09 4:46 ` [PATCH V3 2/2] arm64/mm: Change offset base address in [pud|pmd]_free_[pmd|pte]_page() Anshuman Khandual 2019-05-09 4:46 ` Anshuman Khandual 2019-06-03 15:36 ` Catalin Marinas 2019-06-03 15:36 ` Catalin Marinas 2019-06-06 8:08 ` Anshuman Khandual 2019-06-06 8:08 ` Anshuman Khandual 2019-06-04 14:24 ` Catalin Marinas 2019-06-04 14:24 ` Catalin Marinas 2019-06-06 4:44 ` Anshuman Khandual 2019-06-06 4:44 ` Anshuman Khandual
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