From nobody Thu Sep 19 00:16:02 2024 Received: from mail-yw1-f201.google.com (mail-yw1-f201.google.com [209.85.128.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 823E31850A3 for ; Fri, 26 Jul 2024 23:54:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722038065; cv=none; b=Uuu3DMNBFFqTNcfZSoNUW53kstq9Yg1HVhilh5dhhN2i66REhydhOAM9Vu9PZJVCQc0hYi9NBcoZZYjYQx5ne2xvwiSG8SN937XAVpyQsrO3Xqg3xoXqqYJANWbMyNwU7oKC90M/6QFYLBEv9feU5domK71jrmI+6IjcScht2yI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722038065; c=relaxed/simple; bh=VbnqqafRlYMVLvo8/KpvTNYaOUVhm0RY4zV5HGgCgQE=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=KUzasNOEvDs00K7CopbuPlJaqZGIKNDHHKzv1zJPp3JB3q8UA5muRZ9G4p9e5IENpMqhGFl8PRoUBlzGx6AAJ/tj9DmbR6I4ZWWvBcew2pWnb/MWYfjovrnRUq/GHbeMMfo2uF7jWFma7HCgYw1q9+RE5Gj/9IGcpR1bjDRayxo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=F69ABjzb; arc=none smtp.client-ip=209.85.128.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="F69ABjzb" Received: by mail-yw1-f201.google.com with SMTP id 00721157ae682-66b8faa2a4aso7071877b3.0 for ; Fri, 26 Jul 2024 16:54:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1722038062; x=1722642862; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:from:to:cc:subject:date:message-id:reply-to; bh=cHTm12hU98ihrn/4YhoQtTNxFr6qD1GrOX0sqy5dmrg=; b=F69ABjzbLXFZ/ejnJdvIloSN3rsH/NEOPtgkPHhfyYn0YVTiqn7c1Yg8yhxjN3i/cx XNswgWuSZlajr6wW5FkEOEJHFQFRTcD0MAqFFartwEF9/JV5fPxXBAj9mCf26Ur7nqxc UtMHVYIHS+xELcBIJDCET7wtcppyGhkZWSXOMEeCzbR/kzY/PB+jZBM47cZDgaYcYVu5 G+GR5+xpvGBHtV6/GsY+tRtCFr538d3QH0xaou6GxzvB/9CZE9RP0tczxRyQotEW8KDH 39rHL5nO+qgYyQ4kywIMuRE0gXDQC+5K9FSQRtdzczWzF6PElTYhwdT8f5iMrZB9+CCD jHqw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1722038062; x=1722642862; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=cHTm12hU98ihrn/4YhoQtTNxFr6qD1GrOX0sqy5dmrg=; b=LdFzwA2uVlM8zwycd440UEtpqY8uNIHWFKrCAyAtw4MeqrAI70KvxFeROj1A8PVHL/ 1dVd+qxe8FZDlco1qM20t9Xdz+/x3AAIImuxG03HZqpmxvLGHBwAoViOstd75ksibx0A 46QoLy7Myyg8qVeXegL3TQT/Hr4GzCBMyDePHjcnjjR8bJhCB482gT9FzU5NnMZ5hQa3 VL4uRgyj8Hgx24db621np8V8aFD39ufpG8ekVADgDiv9gyeDDW9PXDhuXeoTA120aBxz IFU7a+4iSjcEKaA3PmpXmKbYNsdJCy+QdOukY0smoGbvjtS7TisLMaWR81ZiKsZdskvA RFGQ== X-Forwarded-Encrypted: i=1; AJvYcCWW9G9Dti6jUAcnDHyho58DMzeXodz6TMeDaTAje5vsectGbUuY/aFMNh/GXf1+IjCYEADyRT49ud1PF3sqi9FrbDBrQpPzE99hIE0J X-Gm-Message-State: AOJu0YxdRhBrch9v5m18hjBfNBMmzwwuKQIy04uWwnqVeoc9IWQjxLNb aCx1F5XbC0nPvnccu2kiAhA1yBFB6mGFeiCr7zbXnjbczIhdmQ0ppvshrMb5PqQUhdrdQQDl2/l L7g== X-Google-Smtp-Source: AGHT+IE591qeJqHACb7CkRANjpP2e5907DfMapi1wU/6IAMP+NJSB5aPgL5hiS9fj7k9JDiJNu7gQfM60rI= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a05:6902:1005:b0:e0b:f93:fe8c with SMTP id 3f1490d57ef6-e0b5427fa67mr79886276.0.1722038062601; Fri, 26 Jul 2024 16:54:22 -0700 (PDT) Reply-To: Sean Christopherson Date: Fri, 26 Jul 2024 16:52:00 -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: <20240726235234.228822-52-seanjc@google.com> Subject: [PATCH v12 51/84] KVM: PPC: e500: Mark "struct page" dirty in kvmppc_e500_shadow_map() 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 the underlying page as dirty in kvmppc_e500_ref_setup()'s sole caller, kvmppc_e500_shadow_map(), which will allow converting e500 to __kvm_faultin_pfn() + kvm_release_faultin_page() without having to do a weird dance between ref_setup() and shadow_map(). Opportunistically drop the redundant kvm_set_pfn_accessed(), as shadow_map() puts the page via kvm_release_pfn_clean(). Signed-off-by: Sean Christopherson --- arch/powerpc/kvm/e500_mmu_host.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/arch/powerpc/kvm/e500_mmu_host.c b/arch/powerpc/kvm/e500_mmu_h= ost.c index c664fdec75b1..5c2adfd19e12 100644 --- a/arch/powerpc/kvm/e500_mmu_host.c +++ b/arch/powerpc/kvm/e500_mmu_host.c @@ -242,7 +242,7 @@ static inline int tlbe_is_writable(struct kvm_book3e_20= 6_tlb_entry *tlbe) return tlbe->mas7_3 & (MAS3_SW|MAS3_UW); } =20 -static inline void kvmppc_e500_ref_setup(struct tlbe_ref *ref, +static inline bool kvmppc_e500_ref_setup(struct tlbe_ref *ref, struct kvm_book3e_206_tlb_entry *gtlbe, kvm_pfn_t pfn, unsigned int wimg) { @@ -252,11 +252,7 @@ static inline void kvmppc_e500_ref_setup(struct tlbe_r= ef *ref, /* Use guest supplied MAS2_G and MAS2_E */ ref->flags |=3D (gtlbe->mas2 & MAS2_ATTRIB_MASK) | wimg; =20 - /* Mark the page accessed */ - kvm_set_pfn_accessed(pfn); - - if (tlbe_is_writable(gtlbe)) - kvm_set_pfn_dirty(pfn); + return tlbe_is_writable(gtlbe); } =20 static inline void kvmppc_e500_ref_release(struct tlbe_ref *ref) @@ -337,6 +333,7 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_= vcpu_e500 *vcpu_e500, unsigned int wimg =3D 0; pgd_t *pgdir; unsigned long flags; + bool writable =3D false; =20 /* used to check for invalidations in progress */ mmu_seq =3D kvm->mmu_invalidate_seq; @@ -490,7 +487,9 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_= vcpu_e500 *vcpu_e500, goto out; } } - kvmppc_e500_ref_setup(ref, gtlbe, pfn, wimg); + writable =3D kvmppc_e500_ref_setup(ref, gtlbe, pfn, wimg); + if (writable) + kvm_set_pfn_dirty(pfn); =20 kvmppc_e500_setup_stlbe(&vcpu_e500->vcpu, gtlbe, tsize, ref, gvaddr, stlbe); --=20 2.46.0.rc1.232.g9752f9e123-goog