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AJvYcCU9mFVBXNmA+xVRF+iK3B2TSzG7rcXUCDC4Ia41nsx4OGDUzKM39DjIW1Ywkt4fX+wwfn8yBviFzmXT1GEYlQlTzneCkSo1r8eRg2Vd X-Gm-Message-State: AOJu0Yx0ztceqHwTsR8TnyjFyDPwwtIEsaEFMnzTloSB1YrQQE58L8HF j8ChQfoLjwH7t2R30A1KGCTpw4tfcFAzhlj/EnuGzvxT5gRQtgu14D/6KiAnpYm3MoDPVgMD4uo 4Pg== X-Google-Smtp-Source: AGHT+IFfaCc2nH86ghdgf4dpmC6KBZ4LBEB5Lf4TmkgG+fOYVVXJfjBbiJJRrvW3lQJXVsfLzyeGSOH6WxY= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a05:690c:830:b0:61b:e103:804d with SMTP id 00721157ae682-67a004a2a4amr37847b3.0.1722038094439; Fri, 26 Jul 2024 16:54:54 -0700 (PDT) Reply-To: Sean Christopherson Date: Fri, 26 Jul 2024 16:52:15 -0700 In-Reply-To: <20240726235234.228822-1-seanjc@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240726235234.228822-1-seanjc@google.com> X-Mailer: git-send-email 2.46.0.rc1.232.g9752f9e123-goog Message-ID: <20240726235234.228822-67-seanjc@google.com> Subject: [PATCH v12 66/84] KVM: LoongArch: Mark "struct page" pfn accessed before dropping mmu_lock From: Sean Christopherson To: Paolo Bonzini , Marc Zyngier , Oliver Upton , Tianrui Zhao , Bibo Mao , Huacai Chen , Michael Ellerman , Anup Patel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Sean Christopherson Cc: kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, David Matlack , David Stevens Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Mark pages accessed before dropping mmu_lock when faulting in guest memory so that LoongArch can convert to kvm_release_faultin_page() without tripping its lockdep assertion on mmu_lock being held. Signed-off-by: Sean Christopherson Reviewed-by: Bibo Mao --- arch/loongarch/kvm/mmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/loongarch/kvm/mmu.c b/arch/loongarch/kvm/mmu.c index 52b5c16cf250..230cafa178d7 100644 --- a/arch/loongarch/kvm/mmu.c +++ b/arch/loongarch/kvm/mmu.c @@ -902,13 +902,13 @@ static int kvm_map_page(struct kvm_vcpu *vcpu, unsign= ed long gpa, bool write) =20 if (writeable) kvm_set_pfn_dirty(pfn); + kvm_release_pfn_clean(pfn); =20 spin_unlock(&kvm->mmu_lock); =20 if (prot_bits & _PAGE_DIRTY) mark_page_dirty_in_slot(kvm, memslot, gfn); =20 - kvm_release_pfn_clean(pfn); out: srcu_read_unlock(&kvm->srcu, srcu_idx); return err; --=20 2.46.0.rc1.232.g9752f9e123-goog