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| author | Bibo Mao <maobibo@loongson.cn> | 2024-07-09 16:25:51 +0800 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2024-07-09 16:25:51 +0800 |
| commit | 8c347042527058976e8a1cb10c0ae31e55145f76 (patch) | |
| tree | 9cb0cf63544db78ea3651accb43f55d6a4c66e4c /arch/loongarch/kvm | |
| parent | 32d4b999dadee0a84ac7fe709cae21d29364e1d1 (diff) | |
LoongArch: KVM: Add dirty bitmap initially all set support
Add KVM_DIRTY_LOG_INITIALLY_SET support on LoongArch system, this
feature comes from other architectures like x86 and arm64.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch/loongarch/kvm')
| -rw-r--r-- | arch/loongarch/kvm/mmu.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/loongarch/kvm/mmu.c b/arch/loongarch/kvm/mmu.c index f1ed1c5296cf..1057bb984ba0 100644 --- a/arch/loongarch/kvm/mmu.c +++ b/arch/loongarch/kvm/mmu.c @@ -467,6 +467,13 @@ void kvm_arch_commit_memory_region(struct kvm *kvm, * kvm_arch_flush_shadow_memslot() */ if (!(old_flags & KVM_MEM_LOG_DIRTY_PAGES) && log_dirty_pages) { + /* + * Initially-all-set does not require write protecting any page + * because they're all assumed to be dirty. + */ + if (kvm_dirty_log_manual_protect_and_init_set(kvm)) + return; + spin_lock(&kvm->mmu_lock); /* Write protect GPA page table entries */ needs_flush = kvm_mkclean_gpa_pt(kvm, new->base_gfn, |