[PATCH v2 1/4] RISC-V: KVM: Add the split page cache for ioctl context
| Newsgroups | org.infradead.lists.kvm-riscv,org.infradead.lists.linux-riscv,org.kernel.vger.kvm,org.kernel.vger.linux-kernel |
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| Message-ID | <[email protected]> |
From: Wang Yechao <[email protected]> Add the split page cache for dirty logging enablement and the KVM_CLEAR_DIRTY_LOG ioctl. Signed-off-by: Wang Yechao <[email protected]> --- arch/riscv/include/asm/kvm_host.h | 1 + arch/riscv/kvm/mmu.c | 3 +++ 2 files changed, 4 insertions(+) diff --git a/arch/riscv/include/asm/kvm_host.h b/arch/riscv/include/asm/kvm_host.h index 75b0a951c1bc..0ee778f0f086 100644 --- a/arch/riscv/include/asm/kvm_host.h +++ b/arch/riscv/include/asm/kvm_host.h @@ -84,6 +84,7 @@ struct kvm_arch { pgd_t *pgd; phys_addr_t pgd_phys; unsigned long pgd_levels; + struct kvm_mmu_memory_cache pgd_split_page_cache; /* Guest Timer */ struct kvm_guest_timer timer; diff --git a/arch/riscv/kvm/mmu.c b/arch/riscv/kvm/mmu.c index 2d3def024270..0676937bd9a1 100644 --- a/arch/riscv/kvm/mmu.c +++ b/arch/riscv/kvm/mmu.c @@ -549,6 +549,7 @@ int kvm_riscv_mmu_alloc_pgd(struct kvm *kvm) kvm->arch.pgd = page_to_virt(pgd_page); kvm->arch.pgd_phys = page_to_phys(pgd_page); kvm->arch.pgd_levels = kvm_riscv_gstage_max_pgd_levels; + kvm->arch.pgd_split_page_cache.gfp_zero = __GFP_ZERO; return 0; } @@ -572,6 +573,8 @@ void kvm_riscv_mmu_free_pgd(struct kvm *kvm) if (pgd) free_pages((unsigned long)pgd, get_order(kvm_riscv_gstage_pgd_size)); + + kvm_mmu_free_memory_cache(&kvm->arch.pgd_split_page_cache); } void kvm_riscv_mmu_update_hgatp(struct kvm_vcpu *vcpu) -- 2.43.5 -- kvm-riscv mailing list [email protected] http://lists.infradead.org/mailman/listinfo/kvm-riscv