| Message ID | 20230126184025.2294823-1-dmatlack@google.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | KVM: Add a common API for range-based TLB invalidation | expand |
On Thu, 26 Jan 2023 10:40:18 -0800, David Matlack wrote: > 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/ > > [...] Applied the x86 specific cleanups to kvm-x86 mmu. They're good changes on their own, I'm quite confident that this series a whole won't be going into 6.4, and I suspect/hope that getting these into 6.4 will make David's life easier (there are more cleanups in the related x86 code that I want to get into 6.4). David, if I'm wrong, you'll have plenty of time to think of an appropriate punishment ;-) [3/7] KVM: x86/mmu: Collapse kvm_flush_remote_tlbs_with_{range,address}() together https://github.com/kvm-x86/linux/commit/28e4b4597d65 [4/7] KVM: x86/mmu: Rename kvm_flush_remote_tlbs_with_address() https://github.com/kvm-x86/linux/commit/8c63e8c21765 [5/7] KVM: x86/MMU: Use gfn_t in kvm_flush_remote_tlbs_range() https://github.com/kvm-x86/linux/commit/9d4655da1a4c -- https://github.com/kvm-x86/linux/tree/next https://github.com/kvm-x86/linux/tree/fixes
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@google.com> v2: - Rebased on top of kvm-x86/next to resolve conflicts in changes slated for 6.3 [Sean] - Drop CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL from virt/kvm/Kconfig [Oliver] v1: https://lore.kernel.org/kvm/20230119173559.2517103-1-dmatlack@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 | 46 +++++++------------------------ arch/x86/kvm/mmu/mmu_internal.h | 7 ++--- arch/x86/kvm/x86.c | 2 +- include/linux/kvm_host.h | 20 ++++++++++---- virt/kvm/Kconfig | 3 -- virt/kvm/kvm_main.c | 35 +++++++++++++++++++---- 14 files changed, 73 insertions(+), 85 deletions(-) base-commit: 503f0315c97739d3f8e645c500d81757dfbf76be prerequisite-patch-id: 42a76ce7cec240776c21f674e99e893a3a6bee58 prerequisite-patch-id: c5ef6bbef252706b7e65b76dc9bd92cf320828f5 prerequisite-patch-id: c6e662cb6c369a47a027c25d3ccc7138a19b17f5 prerequisite-patch-id: 15a58bec64bf1537e6c9e2f52179fac652d441f7 prerequisite-patch-id: d5b6fea4724f4f2c3408b95d7ce5acdd4b528b10