[PATCH 0/7] KVM: Add a common API for range-based TLB invalidation
David Matlack
dmatlack at google.com
Thu Jan 19 09:35:52 PST 2023
This series introduces a common API for performing range-based TLB
invalidation. This is then used to supplant
kvm_arch_flush_remote_tlbs_memslot() and pave the way for two other
patch series:
1. https://lore.kernel.org/kvm/20230109215347.3119271-1-rananta@google.com/
Adds ARM support for range-based TLB invalidation and needs a
mechanism to invoke it from common code. This series provides such a
mechanism via kvm_arch_flush_remote_tlbs_range().
2. https://lore.kernel.org/kvm/20221208193857.4090582-1-dmatlack@google.com/
Refactors the TDP MMU into common code, which requires an API for
range-based TLB invaliation.
This series is based on patches 29-33 from (2.), but I made some further
cleanups after looking at it a second time.
Tested on x86_64 and ARM64 using KVM selftests.
Cc: Raghavendra Rao Ananta <rananta at google.com>
David Matlack (7):
KVM: Rename kvm_arch_flush_remote_tlb() to
kvm_arch_flush_remote_tlbs()
KVM: arm64: Use kvm_arch_flush_remote_tlbs()
KVM: x86/mmu: Collapse kvm_flush_remote_tlbs_with_{range,address}()
together
KVM: x86/mmu: Rename kvm_flush_remote_tlbs_with_address()
KVM: x86/MMU: Use gfn_t in kvm_flush_remote_tlbs_range()
KVM: Allow range-based TLB invalidation from common code
KVM: Move kvm_arch_flush_remote_tlbs_memslot() to common code
arch/arm64/include/asm/kvm_host.h | 3 ++
arch/arm64/kvm/Kconfig | 1 -
arch/arm64/kvm/arm.c | 6 ---
arch/arm64/kvm/mmu.c | 6 +--
arch/mips/include/asm/kvm_host.h | 4 +-
arch/mips/kvm/mips.c | 12 ++----
arch/riscv/kvm/mmu.c | 6 ---
arch/x86/include/asm/kvm_host.h | 7 +++-
arch/x86/kvm/mmu/mmu.c | 68 ++++++++++---------------------
arch/x86/kvm/mmu/mmu_internal.h | 2 -
arch/x86/kvm/mmu/paging_tmpl.h | 4 +-
arch/x86/kvm/mmu/tdp_mmu.c | 7 ++--
arch/x86/kvm/x86.c | 2 +-
include/linux/kvm_host.h | 20 ++++++---
virt/kvm/kvm_main.c | 35 +++++++++++++---
15 files changed, 87 insertions(+), 96 deletions(-)
base-commit: de60733246ff4545a0483140c1f21426b8d7cb7f
prerequisite-patch-id: 42a76ce7cec240776c21f674e99e893a3a6bee58
prerequisite-patch-id: c5ef6bbef252706b7e65b76dc9bd92cf320828f5
prerequisite-patch-id: c6e662cb6c369a47a027c25d3ccc7138a19b17f5
prerequisite-patch-id: 15a58bec64bf1537e6c9e2f52179fac652d441f7
prerequisite-patch-id: d5b6fea4724f4f2c3408b95d7ce5acdd4b528b10
--
2.39.0.246.g2a6d74b583-goog
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