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{ "id": 2196682, "url": "http://patchwork.ozlabs.org/api/1.0/covers/2196682/?format=api", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.0/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260216034432.23912-1-richard.henderson@linaro.org>", "date": "2026-02-16T03:44:19", "name": "[RFC,00/13] target/arm: Support SME for KVM", "submitter": { "id": 72104, "url": "http://patchwork.ozlabs.org/api/1.0/people/72104/?format=api", "name": "Richard Henderson", "email": "richard.henderson@linaro.org" }, "series": [ { "id": 492243, "url": "http://patchwork.ozlabs.org/api/1.0/series/492243/?format=api", "date": "2026-02-16T03:44:19", "name": "target/arm: Support SME for KVM", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/492243/mbox/" } ], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=HoynBAOE;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)" ], "Received": [ "from lists.gnu.org (lists.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fDpZ90YDGz1xpY\n\tfor <incoming@patchwork.ozlabs.org>; Mon, 16 Feb 2026 14:45:05 +1100 (AEDT)", "from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces@nongnu.org>)\n\tid 1vrpXQ-0002V2-Aq; Sun, 15 Feb 2026 22:44:44 -0500", "from eggs.gnu.org ([2001:470:142:3::10])\n by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <richard.henderson@linaro.org>)\n id 1vrpXO-0002Ur-Ul\n for qemu-devel@nongnu.org; Sun, 15 Feb 2026 22:44:42 -0500", "from mail-pl1-x636.google.com ([2607:f8b0:4864:20::636])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)\n (Exim 4.90_1) (envelope-from <richard.henderson@linaro.org>)\n id 1vrpXN-0002NF-5d\n for qemu-devel@nongnu.org; Sun, 15 Feb 2026 22:44:42 -0500", "by mail-pl1-x636.google.com with SMTP id\n d9443c01a7336-2aae146b604so20919615ad.3\n for <qemu-devel@nongnu.org>; Sun, 15 Feb 2026 19:44:39 -0800 (PST)", "from stoup.. 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I'm not 100%\nsure how to confirm that the SME registers have the correct\nvalue across migration.\n\nI'm thinking of a test case in which the ZArray is loaded,\nthe test program pauses, migration or vm save/load initiated,\nand the ZArray contents are verified after continuing.\nBut anything that takes timing into account like that\nseems way sketchy, so I dunno.\n\nAll I can say at the moment is that the VM does start up\nwith SME enabled and stuff doesn't crash, but that the\nget/put paths are not really exercised.\n\n\nr~\n\n\nRichard Henderson (13):\n NOTFORMERGE: Update linux-headers for arm64 kvm from SME devel branch\n target/arm: Remove aarch64 test for kvm\n target/arm: Move kvm_arm_sve_get_vls within kvm.c\n target/arm: Init sve_vq in kvm_arm_set_cpu_features_from_host\n target/arm: Move kvm test out of cpu_arm_set_sve\n target/arm: Drop kvm_arm_sve_supported\n target/arm: Remove kvm test in arm_set_pmu\n target/arm: Drop kvm_arm_pmu_supported\n target/arm: Detect SME in kvm_arm_get_host_cpu_features\n target/arm: Add vq argument to kvm_arch_{get,put}_sve\n target/arm: Add have_ffr argument to kvm_arch_{get,put}_sve\n target/arm: Add SME state to kvm_arch_{get,put}_registers\n target/arm: Add SME properties for KVM\n\n linux-headers/asm-arm64/kvm.h | 33 ++++\n linux-headers/linux/kvm.h | 1 +\n target/arm/kvm_arm.h | 35 ----\n target/arm/cpu.c | 4 -\n target/arm/cpu64.c | 90 ++++++----\n target/arm/kvm-stub.c | 15 --\n target/arm/kvm.c | 308 +++++++++++++++++++++++-----------\n target/arm/tcg/cpu64.c | 2 +-\n 8 files changed, 306 insertions(+), 182 deletions(-)" }