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| author | David Matlack <dmatlack@google.com> | 2022-01-20 02:07:32 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-02-10 21:50:40 +0300 |
| commit | 77aa60753a7b11502430c65a9d10d18af019a5b0 (patch) | |
| tree | 34cf6717022d23ffad8ed41c34b72a67a6200bde /arch/x86/kvm/mmu/tdp_iter.c | |
| parent | 315d86da89ebee1263500c81a4aa3334cc25e169 (diff) | |
| download | linux-77aa60753a7b11502430c65a9d10d18af019a5b0.tar.xz | |
KVM: x86/mmu: Refactor TDP MMU iterators to take kvm_mmu_page root
Instead of passing a pointer to the root page table and the root level
separately, pass in a pointer to the root kvm_mmu_page struct. This
reduces the number of arguments by 1, cutting down on line lengths.
No functional change intended.
Reviewed-by: Ben Gardon <bgardon@google.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: David Matlack <dmatlack@google.com>
Message-Id: <20220119230739.2234394-12-dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmu/tdp_iter.c')
| -rw-r--r-- | arch/x86/kvm/mmu/tdp_iter.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/x86/kvm/mmu/tdp_iter.c b/arch/x86/kvm/mmu/tdp_iter.c index caa96c270b95..be3f096db2eb 100644 --- a/arch/x86/kvm/mmu/tdp_iter.c +++ b/arch/x86/kvm/mmu/tdp_iter.c @@ -40,17 +40,19 @@ void tdp_iter_restart(struct tdp_iter *iter) * Sets a TDP iterator to walk a pre-order traversal of the paging structure * rooted at root_pt, starting with the walk to translate next_last_level_gfn. */ -void tdp_iter_start(struct tdp_iter *iter, u64 *root_pt, int root_level, +void tdp_iter_start(struct tdp_iter *iter, struct kvm_mmu_page *root, int min_level, gfn_t next_last_level_gfn) { + int root_level = root->role.level; + WARN_ON(root_level < 1); WARN_ON(root_level > PT64_ROOT_MAX_LEVEL); iter->next_last_level_gfn = next_last_level_gfn; iter->root_level = root_level; iter->min_level = min_level; - iter->pt_path[iter->root_level - 1] = (tdp_ptep_t)root_pt; - iter->as_id = kvm_mmu_page_as_id(sptep_to_sp(root_pt)); + iter->pt_path[iter->root_level - 1] = (tdp_ptep_t)root->spt; + iter->as_id = kvm_mmu_page_as_id(root); tdp_iter_restart(iter); } |