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GET /api/patches/2215412/?format=api
{ "id": 2215412, "url": "http://patchwork.ozlabs.org/api/patches/2215412/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260324151111.237411-2-peter.maydell@linaro.org/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/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": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260324151111.237411-2-peter.maydell@linaro.org>", "list_archive_url": null, "date": "2026-03-24T15:11:01", "name": "[PULL,01/11] target/arm: fix s2prot not set for two-stage PMSA translations", "commit_ref": null, "pull_url": null, "state": "not-applicable", "archived": false, "hash": "085b24c605b4478f87950c2cd6d9276e2d76c8f3", "submitter": { "id": 5111, "url": "http://patchwork.ozlabs.org/api/people/5111/?format=api", "name": "Peter Maydell", "email": "peter.maydell@linaro.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260324151111.237411-2-peter.maydell@linaro.org/mbox/", "series": [ { "id": 497302, "url": "http://patchwork.ozlabs.org/api/series/497302/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=497302", "date": "2026-03-24T15:11:00", "name": "[PULL,01/11] target/arm: fix s2prot not set for two-stage PMSA translations", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/497302/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2215412/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2215412/checks/", "tags": {}, "related": [], "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=bTpInedD;\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 4fgD6V6TB9z1y1G\n\tfor <incoming@patchwork.ozlabs.org>; Wed, 25 Mar 2026 02:12:18 +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 1w53Pn-0000mm-6q; Tue, 24 Mar 2026 11:11:31 -0400", "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 <peter.maydell@linaro.org>)\n id 1w53Pb-0000bO-EZ\n for qemu-devel@nongnu.org; Tue, 24 Mar 2026 11:11:19 -0400", "from mail-wr1-x42b.google.com ([2a00:1450:4864:20::42b])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)\n (Exim 4.90_1) (envelope-from <peter.maydell@linaro.org>)\n id 1w53PY-0005Bj-IJ\n for qemu-devel@nongnu.org; Tue, 24 Mar 2026 11:11:19 -0400", "by mail-wr1-x42b.google.com with SMTP id\n ffacd0b85a97d-439c6fc2910so1102928f8f.0\n for <qemu-devel@nongnu.org>; Tue, 24 Mar 2026 08:11:16 -0700 (PDT)", "from lanath.. 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This causes the combined permission to be zero,\nresulting in addr_read being set to -1 in the TLB entry and triggering\nan assertion in atomic_mmu_lookup() when the guest executes an atomic\ninstruction on a two-stage PMSA platform (e.g. Cortex-R52 with EL2).\n\nSet s2prot from f.prot after the PMSA stage 2 lookup, consistent with\nwhat the LPAE path does.\n\nCc: qemu-stable@nongnu.org\nFixes: a811c5dafb7 (\"target/arm: Implement get_S2prot_indirect\")\nSigned-off-by: Jose Martins <josemartins90@gmail.com>\n[PMM: refer to the right commit in the commit message]\nReviewed-by: Peter Maydell <peter.maydell@linaro.org>\nMessage-id: 20260321231916.2852653-1-josemartins90@gmail.com\nReviewed-by: Gustavo Romero <gustavo.romero@linaro.org>\nSigned-off-by: Peter Maydell <peter.maydell@linaro.org>\n---\n target/arm/ptw.c | 7 +++++++\n 1 file changed, 7 insertions(+)", "diff": "diff --git a/target/arm/ptw.c b/target/arm/ptw.c\nindex 8b8dc09e72..e289f88124 100644\n--- a/target/arm/ptw.c\n+++ b/target/arm/ptw.c\n@@ -3200,6 +3200,13 @@ static bool get_phys_addr_pmsav8(CPUARMState *env,\n \n ret = pmsav8_mpu_lookup(env, address, access_type, ptw->in_prot_check,\n mmu_idx, secure, result, fi, NULL);\n+ /*\n+ * For two-stage PMSA translations, s2prot holds the stage 2\n+ * permissions to be combined with stage 1 in get_phys_addr_twostage().\n+ */\n+ if (regime_is_stage2(mmu_idx)) {\n+ result->s2prot = result->f.prot;\n+ }\n if (sattrs.subpage) {\n result->f.lg_page_size = 0;\n }\n", "prefixes": [ "PULL", "01/11" ] }