diff options
| author | James Hogan <james.hogan@imgtec.com> | 2016-12-06 14:47:47 +0000 |
|---|---|---|
| committer | James Hogan <james.hogan@imgtec.com> | 2017-02-03 15:21:22 +0000 |
| commit | f0c0c330f7bb1a640968798b63c0dffc6a8af0ec (patch) | |
| tree | 9474de30fe654ca6208cc7944d0790106f02861d /arch/mips/include | |
| parent | 64ebc9e24074403c4127b06c0203f3e7b3367e69 (diff) | |
| download | lwn-f0c0c330f7bb1a640968798b63c0dffc6a8af0ec.tar.gz lwn-f0c0c330f7bb1a640968798b63c0dffc6a8af0ec.zip | |
KVM: MIPS/MMU: Add GPA PT mkclean helper
Add a helper function to make a range of guest physical address (GPA)
mappings in the GPA page table clean so that writes can be caught. This
will be used in a few places to manage dirty page logging.
Note that until the dirty bit is transferred from GPA page table entries
to GVA page table entries in an upcoming patch this won't trigger a TLB
modified exception on write.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Diffstat (limited to 'arch/mips/include')
| -rw-r--r-- | arch/mips/include/asm/kvm_host.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h index 13c9e128bb86..a7394940119c 100644 --- a/arch/mips/include/asm/kvm_host.h +++ b/arch/mips/include/asm/kvm_host.h @@ -643,6 +643,7 @@ enum kvm_mips_flush { }; void kvm_mips_flush_gva_pt(pgd_t *pgd, enum kvm_mips_flush flags); bool kvm_mips_flush_gpa_pt(struct kvm *kvm, gfn_t start_gfn, gfn_t end_gfn); +int kvm_mips_mkclean_gpa_pt(struct kvm *kvm, gfn_t start_gfn, gfn_t end_gfn); pgd_t *kvm_pgd_alloc(void); void kvm_mmu_free_memory_caches(struct kvm_vcpu *vcpu); void kvm_trap_emul_invalidate_gva(struct kvm_vcpu *vcpu, unsigned long addr, |