diff options
| author | Sean Christopherson <seanjc@google.com> | 2023-07-29 03:47:14 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2023-08-31 20:48:42 +0300 |
| commit | 242a6dd8daddbc718a3ad585ce4dce042c13e208 (patch) | |
| tree | 9a0fbdf95452e6b76178bb47e76e4868bf7b1a1a /arch | |
| parent | c4f92cfe021d9263a554f8adcd7c49ef52e485bb (diff) | |
| download | linux-242a6dd8daddbc718a3ad585ce4dce042c13e208.tar.xz | |
KVM: x86/mmu: Avoid pointer arithmetic when iterating over SPTEs
Replace the pointer arithmetic used to iterate over SPTEs in
is_empty_shadow_page() with more standard interger-based iteration.
No functional change intended.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Link: https://lore.kernel.org/r/20230729004722.1056172-5-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/mmu/mmu.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index 8e0b7ad64333..3749ccdef6ce 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -1692,15 +1692,15 @@ bool kvm_test_age_gfn(struct kvm *kvm, struct kvm_gfn_range *range) #ifdef MMU_DEBUG static int is_empty_shadow_page(u64 *spt) { - u64 *pos; - u64 *end; + int i; - for (pos = spt, end = pos + SPTE_ENT_PER_PAGE; pos != end; pos++) - if (is_shadow_present_pte(*pos)) { + for (i = 0; i < SPTE_ENT_PER_PAGE; i++) { + if (is_shadow_present_pte(spt[i])) { printk(KERN_ERR "%s: %p %llx\n", __func__, - pos, *pos); + &spt[i], spt[i]); return 0; } + } return 1; } #endif |