From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yb1-f202.google.com (mail-yb1-f202.google.com [209.85.219.202]) (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 A9A1118FC94 for ; Fri, 26 Jul 2024 23:55:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722038114; cv=none; b=HvgMmI/2uIkq85L4GmcD6Fo6syVXKrq/2m6bvTxWx6oqnunrdNvapgu0mXIqRJTPC5doylRMzyifAEGv1lfb2SKulgSjDCV6plbXRJw9gl+7I7B9A4cNskCfxImz0kfhrRB35dOKUUf+PZE1SSYKmbqa+aNe+zBaK+YBOo18W1E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722038114; c=relaxed/simple; bh=O9N2pQ58zHOs8mA5SBdaAy+6THp9s1eg8+6wg1nEqWw=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=hD3Nl065qO/gsz19B2IZOxD2tn4YUG7Se0QHj5I4JhviXLbaCsrtk95+Rj70NQ9w7UtssRwItm1yqYrefm15XmsAtxUhrF/OyCglHWgsN7KcUj7ssxHFuuH605+1MeoG+hq/KKIF+CeNGGsJCDnmrmGTeIixMWWCKDLiPLiY1N8= 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=w95j+gfN; arc=none smtp.client-ip=209.85.219.202 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="w95j+gfN" Received: by mail-yb1-f202.google.com with SMTP id 3f1490d57ef6-e05e9e4dfbeso401927276.1 for ; Fri, 26 Jul 2024 16:55:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1722038112; x=1722642912; darn=lists.linux.dev; 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=4Hy7goaarUlwaWZyx1m4yCokRE7UoQ8eGBMKWJ4Hgr8=; b=w95j+gfNjnl6cDLsp4soEI/fiGSMk+qKtHqsVpPHtC/8dZd0K+FQy0rk49qLDYw9Ht aXam4NaOvC94ytXGWi/2ux27kSEOdSDlrhVSuk4frsiNbYRZDuI26ZMHq8qVMMv8SW8F aTCHRROUkVOx2AemuOK77FphvHHcCs0WMfw7tsvqjOsIfDW4oTnENum6tKWqeIeiUohd HowP4q7A0/CtpT95z8Bn6PW9cpOgqZygr0vmnw+HhPx3DNpTlH3agZ+ju6HPvoxQreSf /B0gEDklXg/qGnSoLPcG3YzIHZ00Un8pdVOHnNaCKPXfyh0hoTDJVoBufr686tMBZ11y 5ukQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1722038112; x=1722642912; 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=4Hy7goaarUlwaWZyx1m4yCokRE7UoQ8eGBMKWJ4Hgr8=; b=TGl8XcFOC57G5JweePsiGdDg65TwHipvUXZohaMcEvNRqvWy7LX6PyUNgWu3ZDjgvd euqa18gVsS753tGgUMFdty8/BciWJS9xiCkEy97zPDGRziZQeXaGxDC3FIqkefAarEXk zSOTtNvLad6wXAipy2J5Kc6PWcoJsVCkrsRa4J1sWaEm5lonj/mULyvgSOSWgofgiQvM VvMtcats9j7P3z03DQtK/+Z18p6vlcK9GQK0iwRNUJHo8haOODEQi+2jt2mZclze6Nwg WnOlk4khAXU1kaKoZ8eRtcTaQ8urckSFMRoaCapx3OsMVIta978uqjjnPb235QT9yZ3o MzNw== X-Forwarded-Encrypted: i=1; AJvYcCVliYCeGo7kVjGsrPlZefN1v3WHmnndWlm7irZdBkKCV0OO06Wr3ecQlVCkcBlGbkjYkNv2tYDEQjokrxrxDoMaw/VUmZFj X-Gm-Message-State: AOJu0Yx6KKJ4ex+K+lHhK0JT918CSXU40E+9zVZPc1lNWNQVZuCLGWoj HpmMfrDpTSJ8W0Ok8uVjJ8J2gWXaTugdbNzfmvG4z9UEQnB57KSkMBbz4SvG1Mz2wxWARFgyV8l 8Lw== X-Google-Smtp-Source: AGHT+IH925MpsiY9ahug77TjXa70fcvLwqDVLsDqA/3N0vd70sZBQGqqpgNL91Lx+sGl/PSva06bFRo6+6A= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a05:6902:2b8c:b0:e03:b0b4:9456 with SMTP id 3f1490d57ef6-e0b5454ca99mr43273276.7.1722038111873; Fri, 26 Jul 2024 16:55:11 -0700 (PDT) Reply-To: Sean Christopherson Date: Fri, 26 Jul 2024 16:52:23 -0700 In-Reply-To: <20240726235234.228822-1-seanjc@google.com> Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev 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: <20240726235234.228822-75-seanjc@google.com> Subject: [PATCH v12 74/84] KVM: Convert gfn_to_page() to use kvm_follow_pfn() 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-Type: text/plain; charset="UTF-8" Convert gfn_to_page() to the new kvm_follow_pfn() internal API, which will eventually allow removing gfn_to_pfn() and kvm_pfn_to_refcounted_page(). Signed-off-by: Sean Christopherson --- virt/kvm/kvm_main.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 6dc448602751..d0f55a6ecb31 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -3181,14 +3181,16 @@ EXPORT_SYMBOL_GPL(kvm_prefetch_pages); */ struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn) { - kvm_pfn_t pfn; + struct page *refcounted_page = NULL; + struct kvm_follow_pfn kfp = { + .slot = gfn_to_memslot(kvm, gfn), + .gfn = gfn, + .flags = FOLL_WRITE, + .refcounted_page = &refcounted_page, + }; - pfn = gfn_to_pfn(kvm, gfn); - - if (is_error_noslot_pfn(pfn)) - return NULL; - - return kvm_pfn_to_refcounted_page(pfn); + (void)kvm_follow_pfn(&kfp); + return refcounted_page; } EXPORT_SYMBOL_GPL(gfn_to_page); -- 2.46.0.rc1.232.g9752f9e123-goog