linux-kernel - [PATCH 10/13] KVM: x86/mmu: Drop repeated add() of to-be-invalidated range

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 21 Sep 2023 13:33:27 -0700
From:   Sean Christopherson <seanjc@...gle.com>
To:     Sean Christopherson <seanjc@...gle.com>,
        Paolo Bonzini <pbonzini@...hat.com>
Cc:     kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Michael Roth <michael.roth@....com>,
        Binbin Wu <binbin.wu@...ux.intel.com>
Subject: [PATCH 10/13] KVM: x86/mmu: Drop repeated add() of to-be-invalidated range

Use kvm_unmap_gfn_range() instead of kvm_mmu_unmap_gfn_range() when
handling memory attribute ranges now that common KVM adds the target range
to the invalidation set, i.e. calls kvm_mmu_invalidate_range_add() before
invoking the arch callback.

Fixes: dcde045383f3 ("KVM: x86/mmu: Handle page fault for private memory")
Signed-off-by: Sean Christopherson <seanjc@...gle.com>
---
 arch/x86/kvm/mmu/mmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index aa67d9d6fcf8..bcb812a7f563 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -7272,7 +7272,7 @@ bool kvm_arch_pre_set_memory_attributes(struct kvm *kvm,
 	if (WARN_ON_ONCE(!kvm_arch_has_private_mem(kvm)))
 		return false;
 
-	return kvm_mmu_unmap_gfn_range(kvm, range);
+	return kvm_unmap_gfn_range(kvm, range);
 }
 
 static bool hugepage_test_mixed(struct kvm_memory_slot *slot, gfn_t gfn,
-- 
2.42.0.515.g380fc7ccd1-goog