[PATCH v3 00/21] KVM: arm64: Rewrite page-table code and fault handling

Will Deacon
2020-08-25T09:41:51Z

Hello folks,

This is version three of the KVM page-table rework that 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

Changes since v2 include:

* Rebased onto -rc2, which includes the conflicting OOM blocking fixes
* Dropped the patch trying to "fix" the memcache in kvm_phys_addr_ioremap()

Cheers,

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: 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 | 221 +---
arch/arm64/include/asm/kvm_pgtable.h | 279 ++++
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 | 860 +++++++++++++
arch/arm64/kvm/mmu.c | 1566 +++--------------------
arch/arm64/kvm/reset.c | 38 +-
11 files changed, 1326 insertions(+), 1901 deletions(-)
create mode 100644 arch/arm64/include/asm/kvm_pgtable.h
create mode 100644 arch/arm64/kvm/hyp/pgtable.c

--
2.28.0.297.g1956fa8f8d-goog