diff options
| author | Wang Yechao <wang.yechao255@zte.com.cn> | 2026-07-31 17:12:06 +0800 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2026-08-01 11:56:19 +0530 |
| commit | 6c7f75ef096ad6631d62eb66833f3737a85e5dbe (patch) | |
| tree | 3390ee1e8eadc3533b55bb17f587b25b43c75560 | |
| parent | 50448161692b39a21eb99fa9da83b8085b0c36a2 (diff) | |
RISC-V: KVM: Add the split page cache for ioctl context
Add the split page cache for dirty logging enablement and the
KVM_CLEAR_DIRTY_LOG ioctl.
Signed-off-by: Wang Yechao <wang.yechao255@zte.com.cn>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20260731091215.1549430-2-wang.yechao255@zte.com.cn
Signed-off-by: Anup Patel <anup@brainfault.org>
| -rw-r--r-- | arch/riscv/include/asm/kvm_host.h | 1 | ||||
| -rw-r--r-- | arch/riscv/kvm/mmu.c | 3 |
2 files changed, 4 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/kvm_host.h b/arch/riscv/include/asm/kvm_host.h index 489c02135d43..ba5e53e7962b 100644 --- a/arch/riscv/include/asm/kvm_host.h +++ b/arch/riscv/include/asm/kvm_host.h @@ -86,6 +86,7 @@ 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 cbe65e92b128..49e8cb7e3229 100644 --- a/arch/riscv/kvm/mmu.c +++ b/arch/riscv/kvm/mmu.c @@ -677,6 +677,7 @@ 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; } @@ -704,6 +705,8 @@ 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) |