From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 86FC0CFC5FB for ; Thu, 10 Oct 2024 19:13:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:Reply-To:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:From:Subject:Message-ID :References:Mime-Version:In-Reply-To:Date:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=PK0F5NNpRY1szFbOVcwu+xmmY3jSitclElANjvMK+jI=; b=VRYDZYylolgfSF FC7p5uG5cQJ7ti2QxjKzHfx4T0Ny3GBh+aiu95s9hLtlkkbN707WlvtzYG/nJG/BAPY57nwI+T9UK Z97zJV55qiY9c/wmH6rpzes1noAOU9whCM7+Ldb4MTgQOcLl5P3MQ7EHSV2un9oDUus18yxwAsDNm fQMD97q8ZRRZCkotqeon5n0P0aSQGF31GVbtnEkUzTRp3TeHn2I0R+K38sCpSqLr951xlDh+22WZg VnVT32hEhhHrFSbxFKztwJCoDQfWo56nvLJ+dz2uqF2BEsnkM0sf3NIoPlw2nj6rcFPtKBgSGObaK EiohSCGwsxMyFzSLozSw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1syyb5-0000000E4Rp-28GW; Thu, 10 Oct 2024 19:13:15 +0000 Received: from mail-pl1-x64a.google.com ([2607:f8b0:4864:20::64a]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1syxra-0000000Dqfd-3xAl for linux-riscv@lists.infradead.org; Thu, 10 Oct 2024 18:26:16 +0000 Received: by mail-pl1-x64a.google.com with SMTP id d9443c01a7336-20c3d9a0eb2so16543075ad.0 for ; Thu, 10 Oct 2024 11:26:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1728584774; x=1729189574; darn=lists.infradead.org; h=content-transfer-encoding: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=bLMllFEXz5NbCB79T5EDeXxXCOdT0E/lPN9LlBgR2FM=; b=iqLFJk08lU4sXCqW4q3PDDrFFs5ZbTmdrSdsuuvf3BYW0ezc3qn0B+PT1xdp95wJKP v8vCmQJzR9uGRWWX3xM5EFUHYKi2EyUNEbk9tyfb71n60zeMppgYPZ/Vj4gdSD5N6RvJ FkgKdr3Z6z8/NYvrrP30gumqXo23lNuT93fQVxGcHiqCRnlW4E/mnK7E1UGmNlyGu+b8 Y5W97QXCMKKOXRoadOfj7pRQ5An6esrBRxEqAAv4FVktbDLfZXuA1uVEw7KCqLLpPIOx JbdwK5ygGHHjecSj53zztRzMuX8uHhsU/M+w90oMCOX27vE9+USr78CsT5jhtEz3h4c7 2qkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1728584774; x=1729189574; h=content-transfer-encoding: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=bLMllFEXz5NbCB79T5EDeXxXCOdT0E/lPN9LlBgR2FM=; b=AE4JgjxZbTJrvgkKWNQUa/OEBy06ys0UdbOmHga/Fm2YH0rQt87EFtzVu9A82ruZzO ///uT9b4SCuGFaoOvqgTnJZpxCCZSO8/s7KnILuDfO/nDHw5wOw5Lb1wj+DprZF9l+87 2BxRMHPEd5lHvqpo2o/F+J3waXLLbREndWuOFUFgHZyfXMFE/ogli/kU31lFG3f+FgRN coA8o+57smGoUugNWBtqIuBTkxRMhFqm2nsy96ZjlN5c4LwGHeKyfAsDf5ddFeZeKXhw goalLgrut7qxq0bAr6SWFuJzynFkLXcqpY1c7Iw8RIewHzduWsnHAYrvxxTgmncIgyrg FOKw== X-Forwarded-Encrypted: i=1; AJvYcCUCP4JK6kc2oGnhRRfQ6q02AQzvBHWFUlYc6dIXfAeu8hZWFS9lkxJFXhb0N6+mCtQBEQiR3/M3a4X+Hg==@lists.infradead.org X-Gm-Message-State: AOJu0Yz8hknjqd8qW51GHgLD9V5oltAwAIYCybEmF0Vp+J8GmU6T5BHs 9yUaGudV8WG/e6kcEVBBY4jreP1hPQ5+BrFxJ8NfhVGRrfM3hPz4A+BDGrSUz1t6vhGeQEppjgY czw== X-Google-Smtp-Source: AGHT+IHTeV3dFyfdACUyzit3PmgjtoD4THwZ77SaAB8Cv7KtK6sEvfc4IjBdPT+nDHGdhMcMXcKC7R1qaBw= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:9d:3983:ac13:c240]) (user=seanjc job=sendgmr) by 2002:a17:903:1c8:b0:20c:716c:5af with SMTP id d9443c01a7336-20c716c078dmr946605ad.3.1728584773496; Thu, 10 Oct 2024 11:26:13 -0700 (PDT) Date: Thu, 10 Oct 2024 11:23:41 -0700 In-Reply-To: <20241010182427.1434605-1-seanjc@google.com> Mime-Version: 1.0 References: <20241010182427.1434605-1-seanjc@google.com> X-Mailer: git-send-email 2.47.0.rc1.288.g06298d1525-goog Message-ID: <20241010182427.1434605-40-seanjc@google.com> Subject: [PATCH v13 39/85] KVM: x86/mmu: Add common helper to handle prefetching SPTEs 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, "=?UTF-8?q?Alex=20Benn=C3=A9e?=" , Yan Zhao , David Matlack , David Stevens , Andrew Jones X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241010_112615_045138_94955CB4 X-CRM114-Status: GOOD ( 13.48 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Sean Christopherson Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org RGVkdXBsaWNhdGUgdGhlIHByZWZldGNoaW5nIGNvZGUgZm9yIGluZGlyZWN0IGFuZCBkaXJlY3Qg TU1Vcy4gIFRoZSBjb3JlCmxvZ2ljIGlzIHRoZSBzYW1lLCB0aGUgb25seSBkaWZmZXJlbmNlIGlz IHRoYXQgaW5kaXJlY3QgTU1VcyBuZWVkIHRvCnByZWZldGNoIFNQVEVzIG9uZS1hdC1hLXRpbWUs IGFzIGNvbnRpZ3VvdXMgZ3Vlc3QgdmlydHVhbCBhZGRyZXNzZXMgYXJlbid0Cmd1YXJhbnRlZWQg dG8geWllbGQgY29udGlndW91cyBndWVzdCBwaHlzaWNhbCBhZGRyZXNzZXMuCgpUZXN0ZWQtYnk6 IEFsZXggQmVubsOpZSA8YWxleC5iZW5uZWVAbGluYXJvLm9yZz4KU2lnbmVkLW9mZi1ieTogU2Vh biBDaHJpc3RvcGhlcnNvbiA8c2VhbmpjQGdvb2dsZS5jb20+Ci0tLQogYXJjaC94ODYva3ZtL21t dS9tbXUuYyAgICAgICAgIHwgNDAgKysrKysrKysrKysrKysrKysrKysrLS0tLS0tLS0tLS0tLQog YXJjaC94ODYva3ZtL21tdS9wYWdpbmdfdG1wbC5oIHwgMTMgKy0tLS0tLS0tLS0KIDIgZmlsZXMg Y2hhbmdlZCwgMjYgaW5zZXJ0aW9ucygrKSwgMjcgZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0IGEv YXJjaC94ODYva3ZtL21tdS9tbXUuYyBiL2FyY2gveDg2L2t2bS9tbXUvbW11LmMKaW5kZXggNjI5 MjRmOTVhMzk4Li42NWQzYTYwMmViMmMgMTAwNjQ0Ci0tLSBhL2FyY2gveDg2L2t2bS9tbXUvbW11 LmMKKysrIGIvYXJjaC94ODYva3ZtL21tdS9tbXUuYwpAQCAtMjk0MywzMiArMjk0Myw0MSBAQCBz dGF0aWMgaW50IG1tdV9zZXRfc3B0ZShzdHJ1Y3Qga3ZtX3ZjcHUgKnZjcHUsIHN0cnVjdCBrdm1f bWVtb3J5X3Nsb3QgKnNsb3QsCiAJcmV0dXJuIHJldDsKIH0KIAotc3RhdGljIGludCBkaXJlY3Rf cHRlX3ByZWZldGNoX21hbnkoc3RydWN0IGt2bV92Y3B1ICp2Y3B1LAotCQkJCSAgICBzdHJ1Y3Qg a3ZtX21tdV9wYWdlICpzcCwKLQkJCQkgICAgdTY0ICpzdGFydCwgdTY0ICplbmQpCitzdGF0aWMg Ym9vbCBrdm1fbW11X3ByZWZldGNoX3NwdGVzKHN0cnVjdCBrdm1fdmNwdSAqdmNwdSwgZ2ZuX3Qg Z2ZuLCB1NjQgKnNwdGVwLAorCQkJCSAgIGludCBucl9wYWdlcywgdW5zaWduZWQgaW50IGFjY2Vz cykKIHsKIAlzdHJ1Y3QgcGFnZSAqcGFnZXNbUFRFX1BSRUZFVENIX05VTV07CiAJc3RydWN0IGt2 bV9tZW1vcnlfc2xvdCAqc2xvdDsKLQl1bnNpZ25lZCBpbnQgYWNjZXNzID0gc3AtPnJvbGUuYWNj ZXNzOwotCWludCBpLCByZXQ7Ci0JZ2ZuX3QgZ2ZuOworCWludCBpOworCisJaWYgKFdBUk5fT05f T05DRShucl9wYWdlcyA+IFBURV9QUkVGRVRDSF9OVU0pKQorCQlyZXR1cm4gZmFsc2U7CiAKLQln Zm4gPSBrdm1fbW11X3BhZ2VfZ2V0X2dmbihzcCwgc3B0ZV9pbmRleChzdGFydCkpOwogCXNsb3Qg PSBnZm5fdG9fbWVtc2xvdF9kaXJ0eV9iaXRtYXAodmNwdSwgZ2ZuLCBhY2Nlc3MgJiBBQ0NfV1JJ VEVfTUFTSyk7CiAJaWYgKCFzbG90KQotCQlyZXR1cm4gLTE7CisJCXJldHVybiBmYWxzZTsKIAot CXJldCA9IGt2bV9wcmVmZXRjaF9wYWdlcyhzbG90LCBnZm4sIHBhZ2VzLCBlbmQgLSBzdGFydCk7 Ci0JaWYgKHJldCA8PSAwKQotCQlyZXR1cm4gLTE7CisJbnJfcGFnZXMgPSBrdm1fcHJlZmV0Y2hf cGFnZXMoc2xvdCwgZ2ZuLCBwYWdlcywgbnJfcGFnZXMpOworCWlmIChucl9wYWdlcyA8PSAwKQor CQlyZXR1cm4gZmFsc2U7CiAKLQlmb3IgKGkgPSAwOyBpIDwgcmV0OyBpKyssIGdmbisrLCBzdGFy dCsrKSB7Ci0JCW1tdV9zZXRfc3B0ZSh2Y3B1LCBzbG90LCBzdGFydCwgYWNjZXNzLCBnZm4sCisJ Zm9yIChpID0gMDsgaSA8IG5yX3BhZ2VzOyBpKyssIGdmbisrLCBzcHRlcCsrKSB7CisJCW1tdV9z ZXRfc3B0ZSh2Y3B1LCBzbG90LCBzcHRlcCwgYWNjZXNzLCBnZm4sCiAJCQkgICAgIHBhZ2VfdG9f cGZuKHBhZ2VzW2ldKSwgTlVMTCk7CiAJCWt2bV9yZWxlYXNlX3BhZ2VfY2xlYW4ocGFnZXNbaV0p OwogCX0KIAotCXJldHVybiAwOworCXJldHVybiB0cnVlOworfQorCitzdGF0aWMgYm9vbCBkaXJl Y3RfcHRlX3ByZWZldGNoX21hbnkoc3RydWN0IGt2bV92Y3B1ICp2Y3B1LAorCQkJCSAgICAgc3Ry dWN0IGt2bV9tbXVfcGFnZSAqc3AsCisJCQkJICAgICB1NjQgKnN0YXJ0LCB1NjQgKmVuZCkKK3sK KwlnZm5fdCBnZm4gPSBrdm1fbW11X3BhZ2VfZ2V0X2dmbihzcCwgc3B0ZV9pbmRleChzdGFydCkp OworCXVuc2lnbmVkIGludCBhY2Nlc3MgPSBzcC0+cm9sZS5hY2Nlc3M7CisKKwlyZXR1cm4ga3Zt X21tdV9wcmVmZXRjaF9zcHRlcyh2Y3B1LCBnZm4sIHN0YXJ0LCBlbmQgLSBzdGFydCwgYWNjZXNz KTsKIH0KIAogc3RhdGljIHZvaWQgX19kaXJlY3RfcHRlX3ByZWZldGNoKHN0cnVjdCBrdm1fdmNw dSAqdmNwdSwKQEAgLTI5ODYsOCArMjk5NSw5IEBAIHN0YXRpYyB2b2lkIF9fZGlyZWN0X3B0ZV9w cmVmZXRjaChzdHJ1Y3Qga3ZtX3ZjcHUgKnZjcHUsCiAJCWlmIChpc19zaGFkb3dfcHJlc2VudF9w dGUoKnNwdGUpIHx8IHNwdGUgPT0gc3B0ZXApIHsKIAkJCWlmICghc3RhcnQpCiAJCQkJY29udGlu dWU7Ci0JCQlpZiAoZGlyZWN0X3B0ZV9wcmVmZXRjaF9tYW55KHZjcHUsIHNwLCBzdGFydCwgc3B0 ZSkgPCAwKQorCQkJaWYgKCFkaXJlY3RfcHRlX3ByZWZldGNoX21hbnkodmNwdSwgc3AsIHN0YXJ0 LCBzcHRlKSkKIAkJCQlyZXR1cm47CisKIAkJCXN0YXJ0ID0gTlVMTDsKIAkJfSBlbHNlIGlmICgh c3RhcnQpCiAJCQlzdGFydCA9IHNwdGU7CmRpZmYgLS1naXQgYS9hcmNoL3g4Ni9rdm0vbW11L3Bh Z2luZ190bXBsLmggYi9hcmNoL3g4Ni9rdm0vbW11L3BhZ2luZ190bXBsLmgKaW5kZXggOWJkM2Q2 ZjVkYjkxLi5hNDc2YTU0MjgwMTcgMTAwNjQ0Ci0tLSBhL2FyY2gveDg2L2t2bS9tbXUvcGFnaW5n X3RtcGwuaAorKysgYi9hcmNoL3g4Ni9rdm0vbW11L3BhZ2luZ190bXBsLmgKQEAgLTUzMyw5ICs1 MzMsNyBAQCBzdGF0aWMgYm9vbAogRk5BTUUocHJlZmV0Y2hfZ3B0ZSkoc3RydWN0IGt2bV92Y3B1 ICp2Y3B1LCBzdHJ1Y3Qga3ZtX21tdV9wYWdlICpzcCwKIAkJICAgICB1NjQgKnNwdGUsIHB0X2Vs ZW1lbnRfdCBncHRlKQogewotCXN0cnVjdCBrdm1fbWVtb3J5X3Nsb3QgKnNsb3Q7CiAJdW5zaWdu ZWQgcHRlX2FjY2VzczsKLQlzdHJ1Y3QgcGFnZSAqcGFnZTsKIAlnZm5fdCBnZm47CiAKIAlpZiAo Rk5BTUUocHJlZmV0Y2hfaW52YWxpZF9ncHRlKSh2Y3B1LCBzcCwgc3B0ZSwgZ3B0ZSkpCkBAIC01 NDUsMTYgKzU0Myw3IEBAIEZOQU1FKHByZWZldGNoX2dwdGUpKHN0cnVjdCBrdm1fdmNwdSAqdmNw dSwgc3RydWN0IGt2bV9tbXVfcGFnZSAqc3AsCiAJcHRlX2FjY2VzcyA9IHNwLT5yb2xlLmFjY2Vz cyAmIEZOQU1FKGdwdGVfYWNjZXNzKShncHRlKTsKIAlGTkFNRShwcm90ZWN0X2NsZWFuX2dwdGUp KHZjcHUtPmFyY2gubW11LCAmcHRlX2FjY2VzcywgZ3B0ZSk7CiAKLQlzbG90ID0gZ2ZuX3RvX21l bXNsb3RfZGlydHlfYml0bWFwKHZjcHUsIGdmbiwgcHRlX2FjY2VzcyAmIEFDQ19XUklURV9NQVNL KTsKLQlpZiAoIXNsb3QpCi0JCXJldHVybiBmYWxzZTsKLQotCWlmIChrdm1fcHJlZmV0Y2hfcGFn ZXMoc2xvdCwgZ2ZuLCAmcGFnZSwgMSkgIT0gMSkKLQkJcmV0dXJuIGZhbHNlOwotCi0JbW11X3Nl dF9zcHRlKHZjcHUsIHNsb3QsIHNwdGUsIHB0ZV9hY2Nlc3MsIGdmbiwgcGFnZV90b19wZm4ocGFn ZSksIE5VTEwpOwotCWt2bV9yZWxlYXNlX3BhZ2VfY2xlYW4ocGFnZSk7Ci0JcmV0dXJuIHRydWU7 CisJcmV0dXJuIGt2bV9tbXVfcHJlZmV0Y2hfc3B0ZXModmNwdSwgZ2ZuLCBzcHRlLCAxLCBwdGVf YWNjZXNzKTsKIH0KIAogc3RhdGljIGJvb2wgRk5BTUUoZ3B0ZV9jaGFuZ2VkKShzdHJ1Y3Qga3Zt X3ZjcHUgKnZjcHUsCi0tIAoyLjQ3LjAucmMxLjI4OC5nMDYyOThkMTUyNS1nb29nCgoKX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGludXgtcmlzY3YgbWFp bGluZyBsaXN0CmxpbnV4LXJpc2N2QGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmlu ZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1yaXNjdgo=