Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-10 07:00:48 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

KVM: x86/mmu: Use leaf-only loop for walking TDP SPTEs when changing SPTE

Browse Source 
Use the leaf-only TDP iterator when changing the SPTE in reaction to a
MMU notifier.  Practically speaking, this is a nop since the guts of the
loop explicitly looks for 4k SPTEs, which are always leaf SPTEs.  Switch
the iterator to match age_gfn_range() and test_age_gfn() so that a future
patch can consolidate the core iterating logic.

No real functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210326021957.1424875-8-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2021-03-25 19:19:46 -07:00 committed by Paolo Bonzini
parent a3f15bda46
commit aaaac889cf
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/x86/kvm/mmu/tdp_mmu.c
View File

@ -1037,7 +1037,7 @@ static int set_tdp_spte(struct kvm *kvm, struct kvm_memory_slot *slot,
new_pfn = pte_pfn(*ptep);
tdp_root_for_each_pte(iter, root, gfn, gfn + 1) {
tdp_root_for_each_leaf_pte(iter, root, gfn, gfn + 1) {
if (iter.level != PG_LEVEL_4K)
continue;