From: Will Deacon <will@kernel.org> To: kvmarm@lists.cs.columbia.edu Cc: kernel-team@android.com, Marc Zyngier <maz@kernel.org>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, linux-arm-kernel@lists.infradead.org Subject: [PATCH v4 00/21] KVM: arm64: Rewrite page-table code and fault handling Date: Mon, 7 Sep 2020 16:23:23 +0100 [thread overview] Message-ID: <20200907152344.12978-1-will@kernel.org> (raw) Hi all, Here's version four of the KVM page-table rework I previously posted here: v1: https://lore.kernel.org/r/20200730153406.25136-1-will@kernel.org v2: https://lore.kernel.org/r/20200818132818.16065-1-will@kernel.org v3: https://lore.kernel.org/r/20200825093953.26493-1-will@kernel.org Changes since v3 include: * Removed some more unused code from the old implementation * Renumbered KVM_PGTABLE_PROT_* to match file permissions in hex dumps * Simplified kvm_granule_shift() and removed kvm_start_level() * Only clear valid bit when invalidating a PTE, leaving phys addr intact * Fail gracefully when attempting to allocate without a memory cache * Rewrote stage2_apply_range() as a function instead of a macro * Fixed fault address rounding with hugetlbfs * Fixed permission fault handling when dirty logging is enabled * Added comments * Added reviewer tags Many thanks to Alex and Gavin for their comments. Will Cc: Marc Zyngier <maz@kernel.org> Cc: Quentin Perret <qperret@google.com> Cc: James Morse <james.morse@arm.com> Cc: Suzuki Poulose <suzuki.poulose@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Gavin Shan <gshan@redhat.com> Cc: Alexandru Elisei <alexandru.elisei@arm.com> Cc: kernel-team@android.com Cc: linux-arm-kernel@lists.infradead.org --->8 Quentin Perret (4): KVM: arm64: Add support for stage-2 write-protect in generic page-table KVM: arm64: Convert write-protect operation to generic page-table API KVM: arm64: Add support for stage-2 cache flushing in generic page-table KVM: arm64: Convert memslot cache-flushing code to generic page-table API Will Deacon (17): KVM: arm64: Remove kvm_mmu_free_memory_caches() KVM: arm64: Add stand-alone page-table walker infrastructure KVM: arm64: Add support for creating kernel-agnostic stage-1 page tables KVM: arm64: Use generic allocator for hyp stage-1 page-tables KVM: arm64: Add support for creating kernel-agnostic stage-2 page tables KVM: arm64: Add support for stage-2 map()/unmap() in generic page-table KVM: arm64: Convert kvm_phys_addr_ioremap() to generic page-table API KVM: arm64: Convert kvm_set_spte_hva() to generic page-table API KVM: arm64: Convert unmap_stage2_range() to generic page-table API KVM: arm64: Add support for stage-2 page-aging in generic page-table KVM: arm64: Convert page-aging and access faults to generic page-table API KVM: arm64: Add support for relaxing stage-2 perms in generic page-table code KVM: arm64: Convert user_mem_abort() to generic page-table API KVM: arm64: Check the pgt instead of the pgd when modifying page-table KVM: arm64: Remove unused page-table code KVM: arm64: Remove unused 'pgd' field from 'struct kvm_s2_mmu' KVM: arm64: Don't constrain maximum IPA size based on host configuration arch/arm64/include/asm/kvm_host.h | 2 +- arch/arm64/include/asm/kvm_mmu.h | 251 +--- arch/arm64/include/asm/kvm_pgtable.h | 281 ++++ arch/arm64/include/asm/pgtable-hwdef.h | 23 - arch/arm64/include/asm/pgtable-prot.h | 19 - arch/arm64/include/asm/stage2_pgtable.h | 215 --- arch/arm64/kvm/arm.c | 2 +- arch/arm64/kvm/hyp/Makefile | 2 +- arch/arm64/kvm/hyp/pgtable.c | 880 ++++++++++++ arch/arm64/kvm/mmu.c | 1745 ++++------------------- arch/arm64/kvm/reset.c | 38 +- 11 files changed, 1444 insertions(+), 2014 deletions(-) create mode 100644 arch/arm64/include/asm/kvm_pgtable.h create mode 100644 arch/arm64/kvm/hyp/pgtable.c -- 2.28.0.526.ge36021eeef-goog _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will@kernel.org> To: kvmarm@lists.cs.columbia.edu Cc: kernel-team@android.com, Gavin Shan <gshan@redhat.com>, Suzuki Poulose <suzuki.poulose@arm.com>, Marc Zyngier <maz@kernel.org>, Quentin Perret <qperret@google.com>, Alexandru Elisei <alexandru.elisei@arm.com>, James Morse <james.morse@arm.com>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, linux-arm-kernel@lists.infradead.org Subject: [PATCH v4 00/21] KVM: arm64: Rewrite page-table code and fault handling Date: Mon, 7 Sep 2020 16:23:23 +0100 [thread overview] Message-ID: <20200907152344.12978-1-will@kernel.org> (raw) Hi all, Here's version four of the KVM page-table rework I previously posted here: v1: https://lore.kernel.org/r/20200730153406.25136-1-will@kernel.org v2: https://lore.kernel.org/r/20200818132818.16065-1-will@kernel.org v3: https://lore.kernel.org/r/20200825093953.26493-1-will@kernel.org Changes since v3 include: * Removed some more unused code from the old implementation * Renumbered KVM_PGTABLE_PROT_* to match file permissions in hex dumps * Simplified kvm_granule_shift() and removed kvm_start_level() * Only clear valid bit when invalidating a PTE, leaving phys addr intact * Fail gracefully when attempting to allocate without a memory cache * Rewrote stage2_apply_range() as a function instead of a macro * Fixed fault address rounding with hugetlbfs * Fixed permission fault handling when dirty logging is enabled * Added comments * Added reviewer tags Many thanks to Alex and Gavin for their comments. Will Cc: Marc Zyngier <maz@kernel.org> Cc: Quentin Perret <qperret@google.com> Cc: James Morse <james.morse@arm.com> Cc: Suzuki Poulose <suzuki.poulose@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Gavin Shan <gshan@redhat.com> Cc: Alexandru Elisei <alexandru.elisei@arm.com> Cc: kernel-team@android.com Cc: linux-arm-kernel@lists.infradead.org --->8 Quentin Perret (4): KVM: arm64: Add support for stage-2 write-protect in generic page-table KVM: arm64: Convert write-protect operation to generic page-table API KVM: arm64: Add support for stage-2 cache flushing in generic page-table KVM: arm64: Convert memslot cache-flushing code to generic page-table API Will Deacon (17): KVM: arm64: Remove kvm_mmu_free_memory_caches() KVM: arm64: Add stand-alone page-table walker infrastructure KVM: arm64: Add support for creating kernel-agnostic stage-1 page tables KVM: arm64: Use generic allocator for hyp stage-1 page-tables KVM: arm64: Add support for creating kernel-agnostic stage-2 page tables KVM: arm64: Add support for stage-2 map()/unmap() in generic page-table KVM: arm64: Convert kvm_phys_addr_ioremap() to generic page-table API KVM: arm64: Convert kvm_set_spte_hva() to generic page-table API KVM: arm64: Convert unmap_stage2_range() to generic page-table API KVM: arm64: Add support for stage-2 page-aging in generic page-table KVM: arm64: Convert page-aging and access faults to generic page-table API KVM: arm64: Add support for relaxing stage-2 perms in generic page-table code KVM: arm64: Convert user_mem_abort() to generic page-table API KVM: arm64: Check the pgt instead of the pgd when modifying page-table KVM: arm64: Remove unused page-table code KVM: arm64: Remove unused 'pgd' field from 'struct kvm_s2_mmu' KVM: arm64: Don't constrain maximum IPA size based on host configuration arch/arm64/include/asm/kvm_host.h | 2 +- arch/arm64/include/asm/kvm_mmu.h | 251 +--- arch/arm64/include/asm/kvm_pgtable.h | 281 ++++ arch/arm64/include/asm/pgtable-hwdef.h | 23 - arch/arm64/include/asm/pgtable-prot.h | 19 - arch/arm64/include/asm/stage2_pgtable.h | 215 --- arch/arm64/kvm/arm.c | 2 +- arch/arm64/kvm/hyp/Makefile | 2 +- arch/arm64/kvm/hyp/pgtable.c | 880 ++++++++++++ arch/arm64/kvm/mmu.c | 1745 ++++------------------- arch/arm64/kvm/reset.c | 38 +- 11 files changed, 1444 insertions(+), 2014 deletions(-) create mode 100644 arch/arm64/include/asm/kvm_pgtable.h create mode 100644 arch/arm64/kvm/hyp/pgtable.c -- 2.28.0.526.ge36021eeef-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2020-09-07 15:23 UTC|newest] Thread overview: 104+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-09-07 15:23 Will Deacon [this message] 2020-09-07 15:23 ` [PATCH v4 00/21] KVM: arm64: Rewrite page-table code and fault handling Will Deacon 2020-09-07 15:23 ` [PATCH v4 01/21] KVM: arm64: Remove kvm_mmu_free_memory_caches() Will Deacon 2020-09-07 15:23 ` Will Deacon 2020-09-07 15:23 ` [PATCH v4 02/21] KVM: arm64: Add stand-alone page-table walker infrastructure Will Deacon 2020-09-07 15:23 ` Will Deacon 2020-09-08 0:03 ` Gavin Shan 2020-09-08 0:03 ` Gavin Shan 2020-09-10 10:57 ` Will Deacon 2020-09-10 10:57 ` Will Deacon 2020-09-09 15:29 ` Alexandru Elisei 2020-09-09 15:29 ` Alexandru Elisei 2020-09-10 12:37 ` Will Deacon 2020-09-10 12:37 ` Will Deacon 2020-09-10 14:21 ` Andrew Scull 2020-09-10 14:21 ` Andrew Scull 2020-09-11 10:15 ` Will Deacon 2020-09-11 10:15 ` Will Deacon 2020-09-11 11:22 ` Andrew Scull 2020-09-11 11:22 ` Andrew Scull 2020-09-07 15:23 ` [PATCH v4 03/21] KVM: arm64: Add support for creating kernel-agnostic stage-1 page tables Will Deacon 2020-09-07 15:23 ` Will Deacon 2020-09-08 1:09 ` Gavin Shan 2020-09-08 1:09 ` Gavin Shan 2020-09-07 15:23 ` [PATCH v4 04/21] KVM: arm64: Use generic allocator for hyp stage-1 page-tables Will Deacon 2020-09-07 15:23 ` Will Deacon 2020-09-08 1:03 ` Gavin Shan 2020-09-08 1:03 ` Gavin Shan 2020-09-07 15:23 ` [PATCH v4 05/21] KVM: arm64: Add support for creating kernel-agnostic stage-2 page tables Will Deacon 2020-09-07 15:23 ` Will Deacon 2020-09-07 15:23 ` [PATCH v4 06/21] KVM: arm64: Add support for stage-2 map()/unmap() in generic page-table Will Deacon 2020-09-07 15:23 ` Will Deacon 2020-09-10 11:20 ` Alexandru Elisei 2020-09-10 11:20 ` Alexandru Elisei 2020-09-10 12:34 ` Will Deacon 2020-09-10 12:34 ` Will Deacon 2020-09-10 13:55 ` Alexandru Elisei 2020-09-10 13:55 ` Alexandru Elisei 2020-09-07 15:23 ` [PATCH v4 07/21] KVM: arm64: Convert kvm_phys_addr_ioremap() to generic page-table API Will Deacon 2020-09-07 15:23 ` Will Deacon 2020-09-07 15:23 ` [PATCH v4 08/21] KVM: arm64: Convert kvm_set_spte_hva() " Will Deacon 2020-09-07 15:23 ` Will Deacon 2020-09-07 15:23 ` [PATCH v4 09/21] KVM: arm64: Convert unmap_stage2_range() " Will Deacon 2020-09-07 15:23 ` Will Deacon 2020-09-07 15:23 ` [PATCH v4 10/21] KVM: arm64: Add support for stage-2 page-aging in generic page-table Will Deacon 2020-09-07 15:23 ` Will Deacon 2020-09-08 15:30 ` Alexandru Elisei 2020-09-08 15:30 ` Alexandru Elisei 2020-09-10 12:42 ` Will Deacon 2020-09-10 12:42 ` Will Deacon 2020-09-07 15:23 ` [PATCH v4 11/21] KVM: arm64: Convert page-aging and access faults to generic page-table API Will Deacon 2020-09-07 15:23 ` Will Deacon 2020-09-08 15:39 ` Alexandru Elisei 2020-09-08 15:39 ` Alexandru Elisei 2020-09-07 15:23 ` [PATCH v4 12/21] KVM: arm64: Add support for stage-2 write-protect in generic page-table Will Deacon 2020-09-07 15:23 ` Will Deacon 2020-09-07 15:23 ` [PATCH v4 13/21] KVM: arm64: Convert write-protect operation to generic page-table API Will Deacon 2020-09-07 15:23 ` Will Deacon 2020-09-07 15:23 ` [PATCH v4 14/21] KVM: arm64: Add support for stage-2 cache flushing in generic page-table Will Deacon 2020-09-07 15:23 ` Will Deacon 2020-09-07 15:23 ` [PATCH v4 15/21] KVM: arm64: Convert memslot cache-flushing code to generic page-table API Will Deacon 2020-09-07 15:23 ` Will Deacon 2020-09-07 15:23 ` [PATCH v4 16/21] KVM: arm64: Add support for relaxing stage-2 perms in generic page-table code Will Deacon 2020-09-07 15:23 ` Will Deacon 2020-09-08 16:37 ` Alexandru Elisei 2020-09-08 16:37 ` Alexandru Elisei 2020-09-07 15:23 ` [PATCH v4 17/21] KVM: arm64: Convert user_mem_abort() to generic page-table API Will Deacon 2020-09-07 15:23 ` Will Deacon 2020-09-09 14:20 ` Alexandru Elisei 2020-09-09 14:20 ` Alexandru Elisei 2020-09-09 17:12 ` Marc Zyngier 2020-09-09 17:12 ` Marc Zyngier 2020-09-10 10:51 ` Will Deacon 2020-09-10 10:51 ` Will Deacon 2020-09-10 10:58 ` Marc Zyngier 2020-09-10 10:58 ` Marc Zyngier 2020-09-10 13:10 ` Alexandru Elisei 2020-09-10 13:10 ` Alexandru Elisei 2020-09-10 13:20 ` Alexandru Elisei 2020-09-10 13:20 ` Alexandru Elisei 2020-09-07 15:23 ` [PATCH v4 18/21] KVM: arm64: Check the pgt instead of the pgd when modifying page-table Will Deacon 2020-09-07 15:23 ` Will Deacon 2020-09-07 15:23 ` [PATCH v4 19/21] KVM: arm64: Remove unused page-table code Will Deacon 2020-09-07 15:23 ` Will Deacon 2020-09-08 10:33 ` Marc Zyngier 2020-09-08 10:33 ` Marc Zyngier 2020-09-10 10:54 ` Will Deacon 2020-09-10 10:54 ` Will Deacon 2020-09-07 15:23 ` [PATCH v4 20/21] KVM: arm64: Remove unused 'pgd' field from 'struct kvm_s2_mmu' Will Deacon 2020-09-07 15:23 ` Will Deacon 2020-09-07 15:23 ` [PATCH v4 21/21] KVM: arm64: Don't constrain maximum IPA size based on host configuration Will Deacon 2020-09-07 15:23 ` Will Deacon 2020-09-09 14:53 ` Alexandru Elisei 2020-09-09 14:53 ` Alexandru Elisei 2020-09-07 17:16 ` [PATCH v4 00/21] KVM: arm64: Rewrite page-table code and fault handling Marc Zyngier 2020-09-07 17:16 ` Marc Zyngier 2020-09-07 17:31 ` Will Deacon 2020-09-07 17:31 ` Will Deacon 2020-09-10 4:06 ` Gavin Shan 2020-09-10 4:06 ` Gavin Shan 2020-09-10 4:11 ` Gavin Shan 2020-09-10 4:11 ` Gavin Shan 2020-09-10 10:58 ` Will Deacon 2020-09-10 10:58 ` Will Deacon
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