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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CFEDDCCF9E0 for ; Fri, 24 Oct 2025 22:53:05 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id D021F8E011B; Fri, 24 Oct 2025 18:53:04 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id CB2EF8E0112; Fri, 24 Oct 2025 18:53:04 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B7AD88E011B; Fri, 24 Oct 2025 18:53:04 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 9B36C8E0112 for ; Fri, 24 Oct 2025 18:53:04 -0400 (EDT) Received: from smtpin19.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id 1F7C18954A for ; Fri, 24 Oct 2025 22:53:04 +0000 (UTC) X-FDA: 84034509888.19.9690362 Received: from mail-yx1-f45.google.com (mail-yx1-f45.google.com [74.125.224.45]) by imf04.hostedemail.com (Postfix) with ESMTP id 25C074000E for ; Fri, 24 Oct 2025 22:53:01 +0000 (UTC) Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=gmail.com header.s=20230601 header.b=AB07wObc; spf=pass (imf04.hostedemail.com: domain of demiobenour@gmail.com designates 74.125.224.45 as permitted sender) smtp.mailfrom=demiobenour@gmail.com; dmarc=pass (policy=none) header.from=gmail.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1761346382; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=/mmyfUlxIO9G+mnEZZtfRPMoHw8LWeBFeTEO3Heos1A=; b=6YMEHbE04gGJLsdZEn89BvkQVsZZ2neeiDVhqOwR6PN4WSSdUBDeZS3fpMhdli6pm8vXzw OrDpyPU2ABR8+YOl+hCZ19Z3FAm/xehx7jqD4GIGdQ/dNM6IVMujHRfVDdDQLvqCxapYNC fL0PnHFhvWHcj2vfVuotHbvxzn/8cPg= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1761346382; a=rsa-sha256; cv=none; b=EzNIZnBqJb34bjgQeUD5wm0iSDay13DSb/MS/TTlsDmgJTTjgW4A7x8dyrzd5ySUi35hss LKh5zq1cQzYJ3p7o/HKIKTW8qDmrMy5bh9XFeUJXKFEvYikqz1PW3l19HDmCa5laSQgRQO s07aNHcBEx14j0dCPC/bKiOcE7/MJx0= ARC-Authentication-Results: i=1; imf04.hostedemail.com; dkim=pass header.d=gmail.com header.s=20230601 header.b=AB07wObc; spf=pass (imf04.hostedemail.com: domain of demiobenour@gmail.com designates 74.125.224.45 as permitted sender) smtp.mailfrom=demiobenour@gmail.com; dmarc=pass (policy=none) header.from=gmail.com Received: by mail-yx1-f45.google.com with SMTP id 956f58d0204a3-63d0692136bso3149463d50.1 for ; Fri, 24 Oct 2025 15:53:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1761346381; x=1761951181; darn=kvack.org; h=in-reply-to:autocrypt:from:content-language:references:cc:to :subject:user-agent:mime-version:date:message-id:from:to:cc:subject :date:message-id:reply-to; bh=/mmyfUlxIO9G+mnEZZtfRPMoHw8LWeBFeTEO3Heos1A=; b=AB07wObcNzZTtm7doBRkolAPmtV0shCcA7zfcZE+jHdi/H3nyzoWv++2+1A46ETGbg XbxL2/NCEX4VMKpHGSWLpC51fFfdpIObciWewkzNTBp6v1s/bilDHST+KDZ+nWJzEtn4 EeP0TKfv532T3A/dNIJwl/QL249g6DmuUYaRwbSBrEmW07EgiMciEC18TwdGkXbKSNyN hSNG4XdTxVbU72Qk6t9iAd7wJZcJL4poe3LJPA/IJRgjKB0z+xegQE154ZYJgji5dukz +NYLGBvbezJ9AKG/zb+fGwUkn3MwMza5TT2u7b/Qia+ZK4vEjvTmzoB/JTOJjWBvDpKp /PXQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761346381; x=1761951181; h=in-reply-to:autocrypt:from:content-language:references:cc:to :subject:user-agent:mime-version:date:message-id:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=/mmyfUlxIO9G+mnEZZtfRPMoHw8LWeBFeTEO3Heos1A=; b=ZH2NGlwY6+hSgAUtpFFco2e2m4KcvDxtVSl30vZaql6C4hojtzzRYqMy3/za5jZc3p vPuOiFXWHhSC7QBcdHtQJQc2XEfVrDXAeuyB3YCbRHvEhW07g+uAftEvX1tiUnN/d4kA zLEGsU+DG/oxaXIsQ8FscOwo1P6QspFEwk4l0JxZDnY81XrbV5kfeZy7XCKYATP8Er+O PwMvyfYmyYqOSipknymD8LM21QGKXICNybjGhxj1/OLLmpQXRLl/70Oj8dYMlhUi4l5I Smx3WPbQWV6De9ibdhCQhSSmdNKeSicaJC1uINBkFRUeeOTeLcsUkqRweSSgQFnP+tZD +5Zg== X-Forwarded-Encrypted: i=1; AJvYcCWjeFc1cxim6roOrNqZ+y+NWuB1GXBg5MGhjStiO4f65UeZZPjCGCnXD9LBxa59nofGw52ukShQtw==@kvack.org X-Gm-Message-State: AOJu0YwwU1Kx10Y4Mw6zhvN1+ibo1le6lLRWO331ZA1VosXJOk2dhPaR dva9BAF9qE4ec/iJAcmOdTtolSXY/a77PXyXAfEUjy0WdE8KUYjMsEjv X-Gm-Gg: ASbGnct7lBPV9muBUBPgI6votbgtQszNJGAuHvFms6RfKjxkvYNc+vjyxCnznUVYyd5 X855oGK3t3XYPhEnE0FccdDV26UojWGec9F3HVG9k04UBEGv0SYIjJW8Xdj3pB5HZsvA25hysn+ Z1GKOsdPPGAN21K8sVUZqiZeF9GCoAJ5TH8Q+gBclHEYi7Ebtac/ovPEq+8dcWCNyW/QEA0vRfG qaYhIW4yVlD67/oPmNAAYDuCi8rPEsIp5gZB9weDJcnARBisflje32606yHht00+fxzZ296XnrY smNdOpDCMf/pz/KrrPA2gUXog4CbLxiLP6wzT83L9Yh0FdObTHiZNaMWS6Q8q1NfTkFrUC8u5Kw 2wmMM4LThjs1vJ//Q8DtjdqlIVjSmeSdsEesbMT5s8BkPeBHe/nrKwpxau7sW7WSwyg60ruUGmM fBw+C6Yc7kiZvLfuHVdKD0Ypp1uwjzW8GRIqQ14G1zuvuIa9gV9wTMjMihEIcw0t7YcjgxOd5BK qUadTDLmi+YP+p96+ti/Hv2WmE= X-Google-Smtp-Source: AGHT+IGWAvoqHmVALDLkkW4Nv74dFC4bxZqcncsjw3cv6YCeH3p7CQGTYcT90n3c9hPTMMA9o7Hw5g== X-Received: by 2002:a05:690e:11cc:b0:63e:1943:ce46 with SMTP id 956f58d0204a3-63e1943d20cmr24087137d50.38.1761346380903; Fri, 24 Oct 2025 15:53:00 -0700 (PDT) Received: from [10.138.34.110] (h96-60-249-169.cncrtn.broadband.dynamic.tds.net. [96.60.249.169]) by smtp.gmail.com with ESMTPSA id 956f58d0204a3-63f4c471b31sm115469d50.25.2025.10.24.15.52.59 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 24 Oct 2025 15:53:00 -0700 (PDT) Message-ID: <3ff4aaeb-61ce-4b72-ba90-1b66374b1b95@gmail.com> Date: Fri, 24 Oct 2025 18:52:50 -0400 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 11/13] x86/xen: use lazy_mmu_state when context-switching To: David Hildenbrand , David Woodhouse , Kevin Brodsky , linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, Alexander Gordeev , Andreas Larsson , Andrew Morton , Boris Ostrovsky , Borislav Petkov , Catalin Marinas , Christophe Leroy , Dave Hansen , "David S. Miller" , "H. Peter Anvin" , Ingo Molnar , Jann Horn , Juergen Gross , "Liam R. Howlett" , Lorenzo Stoakes , Madhavan Srinivasan , Michael Ellerman , Michal Hocko , Mike Rapoport , Nicholas Piggin , Peter Zijlstra , Ryan Roberts , Suren Baghdasaryan , Thomas Gleixner , Vlastimil Babka , Will Deacon , Yeoreum Yun , linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org, xen-devel@lists.xenproject.org, x86@kernel.org References: <20251015082727.2395128-1-kevin.brodsky@arm.com> <20251015082727.2395128-12-kevin.brodsky@arm.com> <348e5f1c5a90e4ab0f14b4d997baf7169745bf04.camel@infradead.org> <70723f4a-f42b-4d94-9344-5824e48bfad1@redhat.com> Content-Language: en-US From: Demi Marie Obenour Autocrypt: addr=demiobenour@gmail.com; keydata= xsFNBFp+A0oBEADffj6anl9/BHhUSxGTICeVl2tob7hPDdhHNgPR4C8xlYt5q49yB+l2nipd aq+4Gk6FZfqC825TKl7eRpUjMriwle4r3R0ydSIGcy4M6eb0IcxmuPYfbWpr/si88QKgyGSV Z7GeNW1UnzTdhYHuFlk8dBSmB1fzhEYEk0RcJqg4AKoq6/3/UorR+FaSuVwT7rqzGrTlscnT DlPWgRzrQ3jssesI7sZLm82E3pJSgaUoCdCOlL7MMPCJwI8JpPlBedRpe9tfVyfu3euTPLPx wcV3L/cfWPGSL4PofBtB8NUU6QwYiQ9Hzx4xOyn67zW73/G0Q2vPPRst8LBDqlxLjbtx/WLR 6h3nBc3eyuZ+q62HS1pJ5EvUT1vjyJ1ySrqtUXWQ4XlZyoEFUfpJxJoN0A9HCxmHGVckzTRl 5FMWo8TCniHynNXsBtDQbabt7aNEOaAJdE7to0AH3T/Bvwzcp0ZJtBk0EM6YeMLtotUut7h2 Bkg1b//r6bTBswMBXVJ5H44Qf0+eKeUg7whSC9qpYOzzrm7+0r9F5u3qF8ZTx55TJc2g656C 9a1P1MYVysLvkLvS4H+crmxA/i08Tc1h+x9RRvqba4lSzZ6/Tmt60DPM5Sc4R0nSm9BBff0N m0bSNRS8InXdO1Aq3362QKX2NOwcL5YaStwODNyZUqF7izjK4QARAQABzTxEZW1pIE1hcmll IE9iZW5vdXIgKGxvdmVyIG9mIGNvZGluZykgPGRlbWlvYmVub3VyQGdtYWlsLmNvbT7CwXgE EwECACIFAlp+A0oCGwMGCwkIBwMCBhUIAgkKCwQWAgMBAh4BAheAAAoJELKItV//nCLBhr8Q AK/xrb4wyi71xII2hkFBpT59ObLN+32FQT7R3lbZRjVFjc6yMUjOb1H/hJVxx+yo5gsSj5LS 9AwggioUSrcUKldfA/PKKai2mzTlUDxTcF3vKx6iMXKA6AqwAw4B57ZEJoMM6egm57TV19kz PMc879NV2nc6+elaKl+/kbVeD3qvBuEwsTe2Do3HAAdrfUG/j9erwIk6gha/Hp9yZlCnPTX+ VK+xifQqt8RtMqS5R/S8z0msJMI/ajNU03kFjOpqrYziv6OZLJ5cuKb3bZU5aoaRQRDzkFIR 6aqtFLTohTo20QywXwRa39uFaOT/0YMpNyel0kdOszFOykTEGI2u+kja35g9TkH90kkBTG+a EWttIht0Hy6YFmwjcAxisSakBuHnHuMSOiyRQLu43ej2+mDWgItLZ48Mu0C3IG1seeQDjEYP tqvyZ6bGkf2Vj+L6wLoLLIhRZxQOedqArIk/Sb2SzQYuxN44IDRt+3ZcDqsPppoKcxSyd1Ny 2tpvjYJXlfKmOYLhTWs8nwlAlSHX/c/jz/ywwf7eSvGknToo1Y0VpRtoxMaKW1nvH0OeCSVJ itfRP7YbiRVc2aNqWPCSgtqHAuVraBRbAFLKh9d2rKFB3BmynTUpc1BQLJP8+D5oNyb8Ts4x Xd3iV/uD8JLGJfYZIR7oGWFLP4uZ3tkneDfYzsFNBFp+A0oBEAC9ynZI9LU+uJkMeEJeJyQ/ 8VFkCJQPQZEsIGzOTlPnwvVna0AS86n2Z+rK7R/usYs5iJCZ55/JISWd8xD57ue0eB47bcJv VqGlObI2DEG8TwaW0O0duRhDgzMEL4t1KdRAepIESBEA/iPpI4gfUbVEIEQuqdqQyO4GAe+M kD0Hy5JH/0qgFmbaSegNTdQg5iqYjRZ3ttiswalql1/iSyv1WYeC1OAs+2BLOAT2NEggSiVO txEfgewsQtCWi8H1SoirakIfo45Hz0tk/Ad9ZWh2PvOGt97Ka85o4TLJxgJJqGEnqcFUZnJJ riwoaRIS8N2C8/nEM53jb1sH0gYddMU3QxY7dYNLIUrRKQeNkF30dK7V6JRH7pleRlf+wQcN fRAIUrNlatj9TxwivQrKnC9aIFFHEy/0mAgtrQShcMRmMgVlRoOA5B8RTulRLCmkafvwuhs6 dCxN0GNAORIVVFxjx9Vn7OqYPgwiofZ6SbEl0hgPyWBQvE85klFLZLoj7p+joDY1XNQztmfA rnJ9x+YV4igjWImINAZSlmEcYtd+xy3Li/8oeYDAqrsnrOjb+WvGhCykJk4urBog2LNtcyCj kTs7F+WeXGUo0NDhbd3Z6AyFfqeF7uJ3D5hlpX2nI9no/ugPrrTVoVZAgrrnNz0iZG2DVx46 x913pVKHl5mlYQARAQABwsFfBBgBAgAJBQJafgNKAhsMAAoJELKItV//nCLBwNIP/AiIHE8b oIqReFQyaMzxq6lE4YZCZNj65B/nkDOvodSiwfwjjVVE2V3iEzxMHbgyTCGA67+Bo/d5aQGj gn0TPtsGzelyQHipaUzEyrsceUGWYoKXYyVWKEfyh0cDfnd9diAm3VeNqchtcMpoehETH8fr RHnJdBcjf112PzQSdKC6kqU0Q196c4Vp5HDOQfNiDnTf7gZSj0BraHOByy9LEDCLhQiCmr+2 E0rW4tBtDAn2HkT9uf32ZGqJCn1O+2uVfFhGu6vPE5qkqrbSE8TG+03H8ecU2q50zgHWPdHM OBvy3EhzfAh2VmOSTcRK+tSUe/u3wdLRDPwv/DTzGI36Kgky9MsDC5gpIwNbOJP2G/q1wT1o Gkw4IXfWv2ufWiXqJ+k7HEi2N1sree7Dy9KBCqb+ca1vFhYPDJfhP75I/VnzHVssZ/rYZ9+5 1yDoUABoNdJNSGUYl+Yh9Pw9pE3Kt4EFzUlFZWbE4xKL/NPno+z4J9aWemLLszcYz/u3XnbO vUSQHSrmfOzX3cV4yfmjM5lewgSstoxGyTx2M8enslgdXhPthZlDnTnOT+C+OTsh8+m5tos8 HQjaPM01MKBiAqdPgksm1wu2DrrwUi6ChRVTUBcj6+/9IJ81H2P2gJk3Ls3AVIxIffLoY34E +MYSfkEjBz0E8CLOcAw7JIwAaeBT In-Reply-To: <70723f4a-f42b-4d94-9344-5824e48bfad1@redhat.com> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="------------fVWE7l0lJ0S6BZqVtKd8YErV" X-Rspamd-Server: rspam05 X-Stat-Signature: wxbm63saxsbkth6ggosp8xj9hdtmiis1 X-Rspam-User: X-Rspamd-Queue-Id: 25C074000E X-HE-Tag: 1761346381-43479 X-HE-Meta: U2FsdGVkX19a+RPNNl5ZjjX1kCFOeHa36Htoycw3yrPU8MWUl0gl+raX7zxpsfWctvfF7XP10Z82UBfLQpj6njo4sUyepB8uejKUyiwzMQOt3nCfDMZIyqU/C/SXIsHKkinyPpPf18DFZwZ+X2sVVq0SMiy4CG76jDKTcZIL3vstp9PDGe9iidDvyLLyTpBkbD18l6hGiJcuYakDCBZz77GoGivREz5PwDWnaiQ37pgxnEi3znmP4KU0plVl3KoNnn8RpH68qPAPf0y7YND5slYkL2px0jxxx686XFUZ5F290IYknwBjWiCDKVDBRkFzB398ceME83gNoX+CEUivFrwlWbEWVFDk2+SZDPaUUQJs5RQL5mNU+k64vYIUk5Vr45QmFKBzTvNmxAP+rx7031E6Wm73YgS5ydrbpA98Q7WmKxm4b2EIMEBQExL+J0G43gRsIEw9sVV+91/54YKEskGcFEDZ+Wly2gw2nZ9IlN3zGja3HzVZ2mwLhNQ2AX6ygr22puYT4n8Xa+/8rWSyZM0/NdWLBXVUyoQM9r1ImrEcmyhnP6jl1d24//qGAoJvF+7jbnfX0dbdjiwyn8H7mSDCB+aTwKCN5L/1Hwhy6jV+k08+ZSwdBYwAevdUYomVAsYxE8Qh/uK8QQ8xGJ4Fp/KEGurwqzI9wr8VhTOo4EOhQaMfPtLkVT+PZoiIam8OTp3TS5SxdLxLF8darg/bShoRtxbBab6YgbRBW9NPjv0WmP22S9I+c+M7GEeOHDsKQxNurUor0bFoUT5OcMoNtrYn0lFl7bhx2nDtmKKuljfopjDygV3Sfe+fa8nQ+TI3ZnGVh2kLsvmKXmXEd/n/tA9rU+59v2JTetCQF80ZBuEIF+kyXDa5vtNbvWbP8Ndeq+m1GK0FVBL136PD2dVQx1jfjohBb9eVNqZeSKRNOYAdV//vKvlBOM896tivOCG8xe2ocwqRRBb/Irs2YEY h3roG2ID zoZmQGLk1caV92YcGkayi9ajK22NUaTIpqFQsQES8ufOAFXkpKGV6f4HzwfsEA8RFCgUWn2Kw4CPmXg9+IsbX37PeaS8IWubRsn2q7k5iDm8GEtXFnVWSMV58pzGJZwfxZORdINYe4WciSkO6Ywy2bEZk5MXqzkjtSzTD1kL5+lb+U31eSA1kBNM/PKG808aNAV7HKJAWJvvyvOIUkYhtT4m+edUQ8yyPAiHxgh2opBsrxQhueRs7iFlyq6+mY8rxYwP4ERBEuXucN8fo0q1W0K3jwP9DUnDpX0tq19FMn38zXajn4PhbENypBQm/VgtQ0G+XmXGELs56xQR5AOakOXuUvbnajsD4Ui30btTNoc4f6Ca7vxaZpj0EjMth3OnmZBQrBmffne0AT+L7PKJKSEeXxvM7sRwEmpaScpSqiZWk1443+kAOWLRACoTI2TiBwcFB8LNKW42yv9YdmbpSY0NnX/YQBJpgDoF2rC7WzKr/7DJqHPAk3uDyPIr4mO7eJ2HiCQAmWxNLScSsGRvxAvbgSwhInTGPhHRxYr47UCCm9LUmQ8TK8e52GJvr22DeVqrAYYOJWDJGoQRP3VWAmMJIO+IRqX1+IWKSy/mU/+3T4p9nUOifaErDy76XINPWA1oEfpcYNLoj2MRi0lOJ/ap/+nbdJk+N6plv49EMa9pnWKvt553Y1dYLpKJGFbrgr/NPsMf//Xx3KjG+gIOCRcRCusCoxte3Rbf2A1cXlrx7Yzu/+6Y62ViJjKX77IWO60DcHm5VWzjOmXSWhOAThdNcneM3LEcZsMU/6O7hQ32pBz3QYUj2xWypfiYmMdiED2yS+llfSXv5to0Z8jsHVFlgrQ== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --------------fVWE7l0lJ0S6BZqVtKd8YErV Content-Type: multipart/mixed; boundary="------------7Vdm9KUmuSRGLGKvKHtq4xxx"; protected-headers="v1" From: Demi Marie Obenour To: David Hildenbrand , David Woodhouse , Kevin Brodsky , linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, Alexander Gordeev , Andreas Larsson , Andrew Morton , Boris Ostrovsky , Borislav Petkov , Catalin Marinas , Christophe Leroy , Dave Hansen , "David S. Miller" , "H. Peter Anvin" , Ingo Molnar , Jann Horn , Juergen Gross , "Liam R. Howlett" , Lorenzo Stoakes , Madhavan Srinivasan , Michael Ellerman , Michal Hocko , Mike Rapoport , Nicholas Piggin , Peter Zijlstra , Ryan Roberts , Suren Baghdasaryan , Thomas Gleixner , Vlastimil Babka , Will Deacon , Yeoreum Yun , linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org, xen-devel@lists.xenproject.org, x86@kernel.org Message-ID: <3ff4aaeb-61ce-4b72-ba90-1b66374b1b95@gmail.com> Subject: Re: [PATCH v3 11/13] x86/xen: use lazy_mmu_state when context-switching References: <20251015082727.2395128-1-kevin.brodsky@arm.com> <20251015082727.2395128-12-kevin.brodsky@arm.com> <348e5f1c5a90e4ab0f14b4d997baf7169745bf04.camel@infradead.org> <70723f4a-f42b-4d94-9344-5824e48bfad1@redhat.com> In-Reply-To: <70723f4a-f42b-4d94-9344-5824e48bfad1@redhat.com> Autocrypt-Gossip: addr=jgross@suse.com; keydata= xsBNBFOMcBYBCACgGjqjoGvbEouQZw/ToiBg9W98AlM2QHV+iNHsEs7kxWhKMjrioyspZKOB ycWxw3ie3j9uvg9EOB3aN4xiTv4qbnGiTr3oJhkB1gsb6ToJQZ8uxGq2kaV2KL9650I1SJve dYm8Of8Zd621lSmoKOwlNClALZNew72NjJLEzTalU1OdT7/i1TXkH09XSSI8mEQ/ouNcMvIJ NwQpd369y9bfIhWUiVXEK7MlRgUG6MvIj6Y3Am/BBLUVbDa4+gmzDC9ezlZkTZG2t14zWPvx XP3FAp2pkW0xqG7/377qptDmrk42GlSKN4z76ELnLxussxc7I2hx18NUcbP8+uty4bMxABEB AAHNH0p1ZXJnZW4gR3Jvc3MgPGpncm9zc0BzdXNlLmNvbT7CwHkEEwECACMFAlOMcK8CGwMH CwkIBwMCAQYVCAIJCgsEFgIDAQIeAQIXgAAKCRCw3p3WKL8TL8eZB/9G0juS/kDY9LhEXseh mE9U+iA1VsLhgDqVbsOtZ/S14LRFHczNd/Lqkn7souCSoyWsBs3/wO+OjPvxf7m+Ef+sMtr0 G5lCWEWa9wa0IXx5HRPW/ScL+e4AVUbL7rurYMfwCzco+7TfjhMEOkC+va5gzi1KrErgNRHH kg3PhlnRY0Udyqx++UYkAsN4TQuEhNN32MvN0Np3WlBJOgKcuXpIElmMM5f1BBzJSKBkW0Jc Wy3h2Wy912vHKpPV/Xv7ZwVJ27v7KcuZcErtptDevAljxJtE7aJG6WiBzm+v9EswyWxwMCIO RoVBYuiocc51872tRGywc03xaQydB+9R7BHPzsBNBFOMcBYBCADLMfoA44MwGOB9YT1V4KCy vAfd7E0BTfaAurbG+Olacciz3yd09QOmejFZC6AnoykydyvTFLAWYcSCdISMr88COmmCbJzn sHAogjexXiif6ANUUlHpjxlHCCcELmZUzomNDnEOTxZFeWMTFF9Rf2k2F0Tl4E5kmsNGgtSa aMO0rNZoOEiD/7UfPP3dfh8JCQ1VtUUsQtT1sxos8Eb/HmriJhnaTZ7Hp3jtgTVkV0ybpgFg w6WMaRkrBh17mV0z2ajjmabB7SJxcouSkR0hcpNl4oM74d2/VqoW4BxxxOD1FcNCObCELfIS auZx+XT6s+CE7Qi/c44ibBMR7hyjdzWbABEBAAHCwF8EGAECAAkFAlOMcBYCGwwACgkQsN6d 1ii/Ey9D+Af/WFr3q+bg/8v5tCknCtn92d5lyYTBNt7xgWzDZX8G6/pngzKyWfedArllp0Pn fgIXtMNV+3t8Li1Tg843EXkP7+2+CQ98MB8XvvPLYAfW8nNDV85TyVgWlldNcgdv7nn1Sq8g HwB2BHdIAkYce3hEoDQXt/mKlgEGsLpzJcnLKimtPXQQy9TxUaLBe9PInPd+Ohix0XOlY+Uk QFEx50Ki3rSDl2Zt2tnkNYKUCvTJq7jvOlaPd6d/W0tZqpyy7KVay+K4aMobDsodB3dvEAs6 ScCnh03dDAFgIq5nsB11j3KPKdVoPlfucX2c7kGNH+LUMbzqV6beIENfNexkOfxHfw== --------------7Vdm9KUmuSRGLGKvKHtq4xxx Content-Type: multipart/mixed; boundary="------------uG9jzKpwHHYZUrEKmkQI4i0A" --------------uG9jzKpwHHYZUrEKmkQI4i0A Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 10/24/25 10:51, David Hildenbrand wrote: > On 24.10.25 16:47, David Woodhouse wrote: >> On Thu, 2025-10-23 at 22:06 +0200, David Hildenbrand wrote: >>> On 15.10.25 10:27, Kevin Brodsky wrote: >>>> We currently set a TIF flag when scheduling out a task that is in >>>> lazy MMU mode, in order to restore it when the task is scheduled >>>> again. >>>> >>>> The generic lazy_mmu layer now tracks whether a task is in lazy MMU >>>> mode in task_struct::lazy_mmu_state. We can therefore check that >>>> state when switching to the new task, instead of using a separate >>>> TIF flag. >>>> >>>> Signed-off-by: Kevin Brodsky >>>> --- >>> >>> >>> Looks ok to me, but I hope we get some confirmation from x86 / xen >>> folks. >> >> >> I know tglx has shouted at me in the past for precisely this reminder,= >> but you know you can test Xen guests under QEMU/KVM now and don't need= >> to actually run Xen? Has this been boot tested? >=20 > And after that, boot-testing sparc as well? :D >=20 > If it's easy, why not. But other people should not suffer for all the=20 > XEN hacks we keep dragging along. Which hacks? Serious question. Is this just for Xen PV or is HVM also affected? --=20 Sincerely, Demi Marie Obenour (she/her/hers) --------------uG9jzKpwHHYZUrEKmkQI4i0A Content-Type: application/pgp-keys; name="OpenPGP_0xB288B55FFF9C22C1.asc" Content-Disposition: attachment; filename="OpenPGP_0xB288B55FFF9C22C1.asc" Content-Description: OpenPGP public key Content-Transfer-Encoding: quoted-printable -----BEGIN PGP PUBLIC KEY BLOCK----- xsFNBFp+A0oBEADffj6anl9/BHhUSxGTICeVl2tob7hPDdhHNgPR4C8xlYt5q49y B+l2nipdaq+4Gk6FZfqC825TKl7eRpUjMriwle4r3R0ydSIGcy4M6eb0IcxmuPYf bWpr/si88QKgyGSVZ7GeNW1UnzTdhYHuFlk8dBSmB1fzhEYEk0RcJqg4AKoq6/3/ UorR+FaSuVwT7rqzGrTlscnTDlPWgRzrQ3jssesI7sZLm82E3pJSgaUoCdCOlL7M MPCJwI8JpPlBedRpe9tfVyfu3euTPLPxwcV3L/cfWPGSL4PofBtB8NUU6QwYiQ9H zx4xOyn67zW73/G0Q2vPPRst8LBDqlxLjbtx/WLR6h3nBc3eyuZ+q62HS1pJ5EvU T1vjyJ1ySrqtUXWQ4XlZyoEFUfpJxJoN0A9HCxmHGVckzTRl5FMWo8TCniHynNXs BtDQbabt7aNEOaAJdE7to0AH3T/Bvwzcp0ZJtBk0EM6YeMLtotUut7h2Bkg1b//r 6bTBswMBXVJ5H44Qf0+eKeUg7whSC9qpYOzzrm7+0r9F5u3qF8ZTx55TJc2g656C 9a1P1MYVysLvkLvS4H+crmxA/i08Tc1h+x9RRvqba4lSzZ6/Tmt60DPM5Sc4R0nS m9BBff0Nm0bSNRS8InXdO1Aq3362QKX2NOwcL5YaStwODNyZUqF7izjK4QARAQAB zTxEZW1pIE9iZW5vdXIgKElUTCBFbWFpbCBLZXkpIDxhdGhlbmFAaW52aXNpYmxl dGhpbmdzbGFiLmNvbT7CwY4EEwEIADgWIQR2h02fEza6IlkHHHGyiLVf/5wiwQUC X6YJvQIbAwULCQgHAgYVCgkICwIEFgIDAQIeAQIXgAAKCRCyiLVf/5wiwWRhD/0Y R+YYC5Kduv/2LBgQJIygMsFiRHbR4+tWXuTFqgrxxFSlMktZ6gQrQCWe38WnOXkB oY6n/5lSJdfnuGd2UagZ/9dkaGMUkqt+5WshLFly4BnP7pSsWReKgMP7etRTwn3S zk1OwFx2lzY1EnnconPLfPBc6rWG2moA6l0WX+3WNR1B1ndqpl2hPSjT2jUCBWDV rGOUSX7r5f1WgtBeNYnEXPBCUUM51pFGESmfHIXQrqFDA7nBNiIVFDJTmQzuEqIy Jl67pKNgooij5mKzRhFKHfjLRAH4mmWZlB9UjDStAfFBAoDFHwd1HL5VQCNQdqEc /9lZDApqWuCPadZN+pGouqLysesIYsNxUhJ7dtWOWHl0vs7/3qkWmWun/2uOJMQh ra2u8nA9g91FbOobWqjrDd6x3ZJoGQf4zLqjmn/P514gb697788e573WN/MpQ5XI Fl7aM2d6/GJiq6LC9T2gSUW4rbPBiqOCeiUx7Kd/sVm41p9TOA7fEG4bYddCfDsN xaQJH6VRK3NOuBUGeL+iQEVF5Xs6Yp+U+jwvv2M5Lel3EqAYo5xXTx4ls0xaxDCu fudcAh8CMMqx3fguSb7Mi31WlnZpk0fDuWQVNKyDP7lYpwc4nCCGNKCj622ZSocH AcQmX28L8pJdLYacv9pU3jPy4fHcQYvmTavTqowGnM08RGVtaSBNYXJpZSBPYmVu b3VyIChsb3ZlciBvZiBjb2RpbmcpIDxkZW1pb2Jlbm91ckBnbWFpbC5jb20+wsF4 BBMBAgAiBQJafgNKAhsDBgsJCAcDAgYVCAIJCgsEFgIDAQIeAQIXgAAKCRCyiLVf /5wiwYa/EACv8a2+MMou9cSCNoZBQaU+fTmyzft9hUE+0d5W2UY1RY3OsjFIzm9R /4SVccfsqOYLEo+S0vQMIIIqFEq3FCpXXwPzyimotps05VA8U3Bd7yseojFygOgK sAMOAee2RCaDDOnoJue01dfZMzzHPO/TVdp3OvnpWipfv5G1Xg96rwbhMLE3tg6N xwAHa31Bv4/Xq8CJOoIWvx6fcmZQpz01/lSvsYn0KrfEbTKkuUf0vM9JrCTCP2oz VNN5BYzqaq2M4r+jmSyeXLim922VOWqGkUEQ85BSEemqrRS06IU6NtEMsF8EWt/b hWjk/9GDKTcnpdJHTrMxTspExBiNrvpI2t+YPU5B/dJJAUxvmhFrbSIbdB8umBZs I3AMYrEmpAbh5x7jEjoskUC7uN3o9vpg1oCLS2ePDLtAtyBtbHnkA4xGD7ar8mem xpH9lY/i+sC6CyyIUWcUDnnagKyJP0m9ks0GLsTeOCA0bft2XA6rD6aaCnMUsndT ctrab42CV5XypjmC4U1rPJ8JQJUh1/3P48/8sMH+3krxpJ06KNWNFaUbaMTGiltZ 7x9DngklSYrX0T+2G4kVXNmjaljwkoLahwLla2gUWwBSyofXdqyhQdwZsp01KXNQ UCyT/Pg+aDcm/E7OMV3d4lf7g/CSxiX2GSEe6BlhSz+Lmd7ZJ3g32M1ARGVtaSBN YXJpZSBPYmVub3VyIChJVEwgRW1haWwgS2V5KSA8ZGVtaUBpbnZpc2libGV0aGlu Z3NsYWIuY29tPsLBjgQTAQgAOBYhBHaHTZ8TNroiWQcccbKItV//nCLBBQJgOEV+ AhsDBQsJCAcCBhUKCQgLAgQWAgMBAh4BAheAAAoJELKItV//nCLBKwoP/1WSnFdv SAD0g7fD0WlF+oi7ISFT7oqJnchFLOwVHK4Jg0e4hGn1ekWsF3Ha5tFLh4V/7UUu obYJpTfBAA2CckspYBqLtKGjFxcaqjjpO1I2W/jeNELVtSYuCOZICjdNGw2Hl9yH KRZiBkqc9u8lQcHDZKq4LIpVJj6ZQV/nxttDX90ax2No1nLLQXFbr5wb465LAPpU lXwunYDij7xJGye+VUASQh9datye6orZYuJvNo8Tr3mAQxxkfR46LzWgxFCPEAZJ 5P56Nc0IMHdJZj0Uc9+1jxERhOGppp5jlLgYGK7faGB/jTV6LaRQ4Ad+xiqokDWp mUOZsmA+bMbtPfYjDZBz5mlyHcIRKIFpE1l3Y8F7PhJuzzMUKkJi90CYakCV4x/a Zs4pzk5E96c2VQx01RIEJ7fzHF7lwFdtfTS4YsLtAbQFsKayqwkGcVv2B1AHeqdo TMX+cgDvjd1ZganGlWA8Sv9RkNSMchn1hMuTwERTyFTr2dKPnQdA1F480+jUap41 ClXgn227WkCIMrNhQGNyJsnwyzi5wS8rBVRQ3BOTMyvGM07j3axUOYaejEpg7wKi wTPZGLGH1sz5GljD/916v5+v2xLbOo5606j9dWf5/tAhbPuqrQgWv41wuKDi+dDD EKkODF7DHes8No+QcHTDyETMn1RYm7t0RKR4zsFNBFp+A0oBEAC9ynZI9LU+uJkM eEJeJyQ/8VFkCJQPQZEsIGzOTlPnwvVna0AS86n2Z+rK7R/usYs5iJCZ55/JISWd 8xD57ue0eB47bcJvVqGlObI2DEG8TwaW0O0duRhDgzMEL4t1KdRAepIESBEA/iPp I4gfUbVEIEQuqdqQyO4GAe+MkD0Hy5JH/0qgFmbaSegNTdQg5iqYjRZ3ttiswalq l1/iSyv1WYeC1OAs+2BLOAT2NEggSiVOtxEfgewsQtCWi8H1SoirakIfo45Hz0tk /Ad9ZWh2PvOGt97Ka85o4TLJxgJJqGEnqcFUZnJJriwoaRIS8N2C8/nEM53jb1sH 0gYddMU3QxY7dYNLIUrRKQeNkF30dK7V6JRH7pleRlf+wQcNfRAIUrNlatj9Txwi vQrKnC9aIFFHEy/0mAgtrQShcMRmMgVlRoOA5B8RTulRLCmkafvwuhs6dCxN0GNA ORIVVFxjx9Vn7OqYPgwiofZ6SbEl0hgPyWBQvE85klFLZLoj7p+joDY1XNQztmfA rnJ9x+YV4igjWImINAZSlmEcYtd+xy3Li/8oeYDAqrsnrOjb+WvGhCykJk4urBog 2LNtcyCjkTs7F+WeXGUo0NDhbd3Z6AyFfqeF7uJ3D5hlpX2nI9no/ugPrrTVoVZA grrnNz0iZG2DVx46x913pVKHl5mlYQARAQABwsFfBBgBAgAJBQJafgNKAhsMAAoJ ELKItV//nCLBwNIP/AiIHE8boIqReFQyaMzxq6lE4YZCZNj65B/nkDOvodSiwfwj jVVE2V3iEzxMHbgyTCGA67+Bo/d5aQGjgn0TPtsGzelyQHipaUzEyrsceUGWYoKX YyVWKEfyh0cDfnd9diAm3VeNqchtcMpoehETH8frRHnJdBcjf112PzQSdKC6kqU0 Q196c4Vp5HDOQfNiDnTf7gZSj0BraHOByy9LEDCLhQiCmr+2E0rW4tBtDAn2HkT9 uf32ZGqJCn1O+2uVfFhGu6vPE5qkqrbSE8TG+03H8ecU2q50zgHWPdHMOBvy3Ehz fAh2VmOSTcRK+tSUe/u3wdLRDPwv/DTzGI36Kgky9MsDC5gpIwNbOJP2G/q1wT1o Gkw4IXfWv2ufWiXqJ+k7HEi2N1sree7Dy9KBCqb+ca1vFhYPDJfhP75I/VnzHVss Z/rYZ9+51yDoUABoNdJNSGUYl+Yh9Pw9pE3Kt4EFzUlFZWbE4xKL/NPno+z4J9aW emLLszcYz/u3XnbOvUSQHSrmfOzX3cV4yfmjM5lewgSstoxGyTx2M8enslgdXhPt hZlDnTnOT+C+OTsh8+m5tos8HQjaPM01MKBiAqdPgksm1wu2DrrwUi6ChRVTUBcj 6+/9IJ81H2P2gJk3Ls3AVIxIffLoY34E+MYSfkEjBz0E8CLOcAw7JIwAaeBTzsFN BGbyLVgBEACqClxh50hmBepTSVlan6EBq3OAoxhrAhWZYEwN78k+ENhK68KhqC5R IsHzlL7QHW1gmfVBQZ63GnWiraM6wOJqFTL4ZWvRslga9u28FJ5XyK860mZLgYhK 9BzoUk4s+dat9jVUbq6LpQ1Ot5I9vrdzo2p1jtQ8h9WCIiFxSYy8s8pZ3hHh5T64 GIj1m/kY7lG3VIdUgoNiREGf/iOMjUFjwwE9ZoJ26j9p7p1U+TkKeF6wgswEB1T3 J8KCAtvmRtqJDq558IU5jhg5fgN+xHB8cgvUWulgK9FIF9oFxcuxtaf/juhHWKMO RtL0bHfNdXoBdpUDZE+mLBUAxF6KSsRrvx6AQyJs7VjgXJDtQVWvH0PUmTrEswgb 49nNU+dLLZQAZagxqnZ9Dp5l6GqaGZCHERJcLmdY/EmMzSf5YazJ6c0vO8rdW27M kn73qcWAplQn5mOXaqbfzWkAUPyUXppuRHfrjxTDz3GyJJVOeMmMrTxH4uCaGpOX Z8tN6829J1roGw4oKDRUQsaBAeEDqizXMPRc+6U9vI5FXzbAsb+8lKW65G7JWHym YPOGUt2hK4DdTA1PmVo0DxH00eWWeKxqvmGyX+Dhcg+5e191rPsMRGsDlH6KihI6 +3JIuc0y6ngdjcp6aalbuvPIGFrCRx3tnRtNc7He6cBWQoH9RPwluwARAQABwsOs BBgBCgAgFiEEdodNnxM2uiJZBxxxsoi1X/+cIsEFAmbyLVgCGwICQAkQsoi1X/+c IsHBdCAEGQEKAB0WIQSilC2pUlbVp66j3+yzNoc6synyUwUCZvItWAAKCRCzNoc6 synyU85gD/0T1QDtPhovkGwoqv4jUbEMMvpeYQf+oWgm/TjWPeLwdjl7AtY0G9Ml ZoyGniYkoHi37Gnn/ShLT3B5vtyI58ap2+SSa8SnGftdAKRLiWFWCiAEklm9FRk8 N3hwxhmSFF1KR/AIDS4g+HIsZn7YEMubBSgLlZZ9zHl4O4vwuXlREBEW97iL/FSt VownU2V39t7PtFvGZNk+DJH7eLO3jmNRYB0PL4JOyyda3NH/J92iwrFmjFWWmmWb /Xz8l9DIs+Z59pRCVTTwbBEZhcUc7rVMCcIYL+q1WxBG2e6lMn15OQJ5WfiE6E0I sGirAEDnXWx92JNGx5l+mMpdpsWhBZ5iGTtttZesibNkQfd48/eCgFi4cxJUC4PT UQwfD9AMgzwSTGJrkI5XGy+XqxwOjL8UA0iIrtTpMh49zw46uV6kwFQCgkf32jZM OLwLTNSzclbnA7GRd8tKwezQ/XqeK3dal2n+cOr+o+Eka7yGmGWNUqFbIe8cjj9T JeF3mgOCmZOwMI+wIcQYRSf+e5VTMO6TNWH5BI3vqeHSt7HkYuPlHT0pGum88d4a pWqhulH4rUhEMtirX1hYx8Q4HlUOQqLtxzmwOYWkhl1C+yPObAvUDNiHCLf9w28n uihgEkzHt9J4VKYulyJM9fe3ENcyU6rpXD7iANQqcr87ogKXFxknZ97uEACvSucc RbnnAgRqZ7GDzgoBerJ2zrmhLkeREZ08iz1zze1JgyW3HEwdr2UbyAuqvSADCSUU GN0vtQHsPzWl8onRc7lOPqPDF8OO+UfN9NAfA4wl3QyChD1GXl9rwKQOkbvdlYFV UFx9u86LNi4ssTmU8p9NtHIGpz1SYMVYNoYy9NU7EVqypGMguDCL7gJt6GUmA0sw p+YCroXiwL2BJ7RwRqTpgQuFL1gShkA17D5jK4mDPEetq1d8kz9rQYvAR/sTKBsR ImC3xSfn8zpWoNTTB6lnwyP5Ng1bu6esS7+SpYprFTe7ZqGZF6xhvBPf1Ldi9UAm U2xPN1/eeWxEa2kusidmFKPmN8lcT4miiAvwGxEnY7Oww9CgZlUB+LP4dl5VPjEt sFeAhrgxLdpVTjPRRwTd9VQF3/XYl83j5wySIQKIPXgT3sG3ngAhDhC8I8GpM36r 8WJJ3x2yVzyJUbBPO0GBhWE2xPNIfhxVoU4cGGhpFqz7dPKSTRDGq++MrFgKKGpI ZwT3CPTSSKc7ySndEXWkOYArDIdtyxdE1p5/c3aoz4utzUU7NDHQ+vVIwlnZSMiZ jek2IJP3SZ+COOIHCVxpUaZ4lnzWT4eDqABhMLpIzw6NmGfg+kLBJhouqz81WITr EtJuZYM5blWncBOJCoWMnBEcTEo/viU3GgcVRw=3D=3D =3Dx94R -----END PGP PUBLIC KEY BLOCK----- --------------uG9jzKpwHHYZUrEKmkQI4i0A-- --------------7Vdm9KUmuSRGLGKvKHtq4xxx-- --------------fVWE7l0lJ0S6BZqVtKd8YErV Content-Type: application/pgp-signature; name="OpenPGP_signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="OpenPGP_signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEopQtqVJW1aeuo9/sszaHOrMp8lMFAmj8A0MACgkQszaHOrMp 8lML0hAAigIfQ+XuV1xY2lVweZbTOXQw4gbWwhzVyP5xYwcJ9cNpopsO8QhCpx+l CD051fg3GGh9GbWDiXJaF0OuflawLIQruAU58oGe3FGMJu5FQ6lt3h0U4YHX13hy XrZY6Y780Rb6BIhcQFP1hLNZ2xWiYi1jORBEsIiNe5B+wKhV4eEz8jaJuqmnnG5i i660PErOwV5kmXYGn/r/nBwTtPTGUSmqOZwiY7YkpVFmPT+qiA3+RN5fsRvKu8sY AI+sEbqdGDfYtzp2lKYDpKtme2lOAVONjzlJa6TAKa6Vmi8roDfCLCZ2yWxXviAo FVhfUH+hEsP2Q8i/vCtT/iJ2ErSRrijlH9x+bMV/YaS/ZYpvHmM/MbAGl0+1//6B 3p6Y9nNSGk+CegsiOExJ/bGAFLKUU0CQxCXVw1AiaRNW6DtvIK35tkUhWWXflRik 9dW8T/OoFJE3hknF5zoa6nhlKYiZWc2OsXp64Q4KMwRuthqW+c23mTXuQO10NZvi 5eEDTPW1vN6hldCnAh5kwurHM/apb7KU4df/6oZkhER/I9LERfeURsayC6G2r7+l kEytsJtUNMlh5yDMkUUPz9diUvqLEcJWq7oHHFT+eeLRnxa4uml9vV9buKCs7/DV Ph6CGtySx1Gy494nr/xHj3MGjiIE90cASt1hOR7x1CKivw3/384= =wFBt -----END PGP SIGNATURE----- --------------fVWE7l0lJ0S6BZqVtKd8YErV--