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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 F2FD4C35FFC for ; Tue, 25 Mar 2025 12:42:09 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8E8B210E56C; Tue, 25 Mar 2025 12:42:04 +0000 (UTC) Received: from mout.web.de (mout.web.de [212.227.15.14]) by gabe.freedesktop.org (Postfix) with ESMTPS id A716E10E064 for ; Tue, 25 Mar 2025 10:14:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=web.de; s=s29768273; t=1742897666; x=1743502466; i=spasswolf@web.de; bh=Kn4O1C1m+v3TNP8fqKbb9jrEsMA83fWOmk+rFaDwuPc=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date:Message-ID:In-Reply-To: References:MIME-Version:Content-Transfer-Encoding:cc: content-transfer-encoding:content-type:date:from:message-id: mime-version:reply-to:subject:to; b=cF5eATILJVTjHeDfUYomZwTQyOXH75trm2neTwsGb+Ii2ftqe8whl2bdZJcJGzqW u8MMQTO+CoD4x9smEtvMPf6bzaX1AvpeAHhzh2aW0F9G7e9OnHb0kq0kdZnqW6zrq nHjhL5UxRmN7rV7BqA9NOSCDrSNRvwlhQoYg7WoHhGdMJqpLJDzKDGgKld418zQTi x0YY3BHzhAEveIG+uP9VUmDk9iwqdcfMuDjTonXrRWDThLuk2Z/C34Cpr7exazOtl 2govgLRM06lIffMN7C7/XcNfcck3pVNKmlajduNpcqko5+ba+N1p5l0XrXIFv5syR cK9llQ/TdZO0c+vgJA== X-UI-Sender-Class: 814a7b36-bfc1-4dae-8640-3722d8ec6cd6 Received: from localhost.localdomain ([95.223.134.88]) by smtp.web.de (mrweb005 [213.165.67.108]) with ESMTPSA (Nemesis) id 1Mo6O7-1tLGmn1JpT-00koyo; Tue, 25 Mar 2025 11:14:26 +0100 From: Bert Karwatzki To: =?UTF-8?q?Christian=20K=C3=B6nig?= Cc: Bert Karwatzki , Balbir Singh , Ingo Molnar , Kees Cook , Bjorn Helgaas , Linus Torvalds , Peter Zijlstra , Andy Lutomirski , Alex Deucher , linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org Subject: RE: commit 7ffb791423c7 breaks steam game Date: Tue, 25 Mar 2025 11:14:23 +0100 Message-ID: <20250325101424.4478-1-spasswolf@web.de> X-Mailer: git-send-email 2.49.0 In-Reply-To: 634e77d7-4f3c-4d1a-8aa3-1978896f9bf2@amd.com References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:SGxcBUha5iflKM8hzZwOrkwP0CO4z6rXyWXA0hg2dgGhN1A1yw6 crz/7P/Pl/PK/774wZ8hqoYwIzu7OU++hQiLoOlEsDycXfuyfMBHzvPFJh/303dqFeELNR2 2fpDAEmHc0uU0FvgGaGPT5hUQIL3MNXnWfssESsJDFIJjW/EOUSdaZS0mxILEgpnxCAnZqb SOqvM3Pi2DT2x5Im1lI+A== UI-OutboundReport: notjunk:1;M01:P0:SoAjOdVbYAA=;zblxxf0DeO9eZMftQS+pZIW+MWS fTgZ1Kv2lHgv8rhyLkfnW5xyhhtiO+lxhwMCTF7+ETk9mHZkg1SiSZAx2ZfUAsVMXu7iQ1RCB FicS7Sulz9RzQMu7TckNskWDlfqoTzcGFzernIiyN9sY6OTEJO7dZAijS6O5iOJeLrdyiZFtW 19yOEHQwM8/EH3/tRehtEAQh43u4FBumyiMzGKMDFKrRLnMyiUrODXybRFYdPM+hfRm9E6dWs J2VNQLpfHj5JiQH4ZdVtZcc0Zj8g148Bniuhcdzfn/7UEBlcctH9/SCg9G/owBw45aPQIi9NZ kAHVo0xYgGT/NDMw/pv3nQelKADK/YWeIf9sMWGjdqc2zYK7csgvpL8sLlBWZxtAY6oOGZFmq 6k7fZkj4EmSZM9k9pKLOiWSKUczEAequy9wpVAWNmONBKc0cDUQFd/Flu1olLiJpX9KnK50Rk x3+d0dsM+ObUr3JmMoveiVfATez+jtX+GO9GA44MJbqwBL5RYxqUUJxkDRkrIpEHp0mHq2QR7 TyePji1FlAIXYvV3fFVRW5GSUAE+70VYvks+cowInx0CIdqc8phaIU3il25RFhK5y1qvjDu3O ktqXwiEPcQj7OY4SuvGEUlqkcddhtdPnxA2OFOSa+yTVfMRld2a4nwBJpPNSgZuS3FXMxY3up 2orl496eT3rtBCNeSvtVkJOrV2T9XbXBwzPLll2r7w6QjVcJfgZMCJd5F8wGoXHZORohVdPnS od3fExZWG0JTbXtKbuEytZFgUJuCKGY7t6UwS1OmfSmx4UKEbLHm8WpEUFssV9R9XajQN8Ee1 j6BlJzZ2ePhMpMV/vzQu6wPEXynMcKzWSPW7BsXr9LJzmDgUiC6G3uYXP+ouY5cxf3Hi4JcG3 cxYRzqOet71iFfqC1+F5j74l88X+ABtBMVCFY8kmxkocOwr1HWp3SSp+8teDcoZ+sb/5gCpqN wuNOknPN3H+WU2t9J8pcXw0Resa1GFNwh6Kr2vtJCqJ4+WLZppRw1j6GIfCY97M+B3n/RiHpA BdBEfvLPAY7KiNyHyOtfKiWb1pIJm00hdrOPmmhkkxgkEEy/N2G8/dzPoceTjxw2XTNNylyyo BidQ6Wby0I9g1gRGY//uSR298k0d4/przQFdYjFRJZeUrmHfHY1Tj7ZnH/5NtCAsSeq3Ul8nt 7TYTdatpGdqbMsAK5stlLAleyzXNPUAb3z2WCDsyrDxY7HM3aIpuvnbqixM9smkagp4LgRUNJ i34WNLd69pLUH6aVWZodEbMat86TemCmJJBeytlv2gwwS/5A213P0wp/3jFos5V5er3z5s7ng ZJdyA0MEHGrFGwN841KzJrh95e87p6aFPg/26fj3YDvvVEcREc5VklFSf6Vi1wlNSFTF9Sb+R Ff6F0Bzlh0RVtdOQqyBsIQ8ngj7DfbpA10dL7CqhB+Nfv21fMNrD+E1qnX4JSD+FTopd/PTsZ 127qOq0v9Yo/wNGIPlwHRrQyJQog= X-Mailman-Approved-At: Tue, 25 Mar 2025 12:41:59 +0000 X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" My /proc/iomem contans two memory areas of 8G size which are belonging to PCI 0000:03:00.0, one of the is the BAR reported by dmesg [ 0.312692] [ T1] pci 0000:03:00.0: BAR 0 [mem 0xfc00000000-0xfdffffffff 6= 4bit pref] the other one is "afe00000000-affffffffff : 0000:03:00.0" (in the case wit= hout nokaslr) which shifts to "3ffe00000000-3fffffffffff : 0000:03:00.0" in the case with nokaslr. Here's /proc/iomem in the case without nokaslr: 00000000-00000fff : Reserved 00001000-0009ffff : System RAM 000a0000-000fffff : Reserved 000a0000-000dffff : PCI Bus 0000:00 000f0000-000fffff : System ROM 00100000-09bfefff : System RAM 09bff000-0a000fff : Reserved 0a001000-0a1fffff : System RAM 0a200000-0a20efff : ACPI Non-volatile Storage 0a20f000-e62edfff : System RAM e62ee000-e63e1fff : Reserved e63e2000-e87cafff : System RAM e87cb000-e87cbfff : Reserved e87cc000-e9e1ffff : System RAM e9e20000-eb33efff : Reserved eb31e000-eb321fff : MSFT0101:00 eb322000-eb325fff : MSFT0101:00 eb33f000-eb39efff : ACPI Tables eb39f000-eb556fff : ACPI Non-volatile Storage eb557000-ed1fefff : Reserved ed1ff000-edffffff : System RAM ee000000-efffffff : Reserved f0000000-fcffffff : PCI Bus 0000:00 f0000000-f7ffffff : PCI ECAM 0000 [bus 00-7f] f0000000-f7ffffff : pnp 00:00 fc500000-fc9fffff : PCI Bus 0000:08 fc500000-fc5fffff : 0000:08:00.7 fc500000-fc5fffff : pcie_mp2_amd fc600000-fc6fffff : 0000:08:00.4 fc600000-fc6fffff : xhci-hcd fc700000-fc7fffff : 0000:08:00.3 fc700000-fc7fffff : xhci-hcd fc800000-fc8fffff : 0000:08:00.2 fc800000-fc8fffff : ccp fc900000-fc97ffff : 0000:08:00.0 fc980000-fc9bffff : 0000:08:00.5 fc980000-fc9bffff : AMD ACP3x audio fc980000-fc990200 : acp_pdm_iomem fc9c0000-fc9c7fff : 0000:08:00.6 fc9c0000-fc9c7fff : ICH HD audio fc9c8000-fc9cbfff : 0000:08:00.1 fc9c8000-fc9cbfff : ICH HD audio fc9cc000-fc9cdfff : 0000:08:00.7 fc9ce000-fc9cffff : 0000:08:00.2 fc9ce000-fc9cffff : ccp fca00000-fccfffff : PCI Bus 0000:01 fca00000-fcbfffff : PCI Bus 0000:02 fca00000-fcbfffff : PCI Bus 0000:03 fca00000-fcafffff : 0000:03:00.0 fcb00000-fcb1ffff : 0000:03:00.0 fcb20000-fcb23fff : 0000:03:00.1 fcb20000-fcb23fff : ICH HD audio fcc00000-fcc03fff : 0000:01:00.0 fcd00000-fcdfffff : PCI Bus 0000:07 fcd00000-fcd03fff : 0000:07:00.0 fcd00000-fcd03fff : nvme fce00000-fcefffff : PCI Bus 0000:06 fce00000-fce03fff : 0000:06:00.0 fce00000-fce03fff : nvme fcf00000-fcffffff : PCI Bus 0000:05 fcf00000-fcf03fff : 0000:05:00.0 fcf04000-fcf04fff : 0000:05:00.0 fcf04000-fcf04fff : r8169 fd300000-fd37ffff : amd_iommu fec00000-fec003ff : IOAPIC 0 fec01000-fec013ff : IOAPIC 1 fec10000-fec10fff : Reserved fec10000-fec10fff : pnp 00:04 fed00000-fed00fff : Reserved fed00000-fed003ff : HPET 0 fed00000-fed003ff : PNP0103:00 fed40000-fed44fff : Reserved fed80000-fed8ffff : Reserved fed81200-fed812ff : AMDI0030:00 fed81500-fed818ff : AMDI0030:00 fed81500-fed818ff : AMDI0030:00 AMDI0030:00 fedc0000-fedc0fff : pnp 00:04 fedc4000-fedc9fff : Reserved fedc5000-fedc5fff : AMDI0010:03 fedc5000-fedc5fff : AMDI0010:03 AMDI0010:03 fedcc000-fedcefff : Reserved fedd5000-fedd5fff : Reserved fee00000-fee00fff : pnp 00:04 ff000000-ffffffff : pnp 00:04 100000000-fee2fffff : System RAM 825600000-8261fa1b1 : Kernel code 826200000-82663dfff : Kernel rodata 826800000-82692ef3f : Kernel data 826eaf000-826ffffff : Kernel bss fee300000-100fffffff : Reserved 1010000000-ffffffffff : PCI Bus 0000:00 fc00000000-fe0fffffff : PCI Bus 0000:01 fc00000000-fe0fffffff : PCI Bus 0000:02 fc00000000-fe0fffffff : PCI Bus 0000:03 fc00000000-fdffffffff : 0000:03:00.0 This is the usual BAR reporte= d by dmesg (and lspci -vv) fe00000000-fe0fffffff : 0000:03:00.0 fe20000000-fe301fffff : PCI Bus 0000:08 fe20000000-fe2fffffff : 0000:08:00.0 fe30000000-fe301fffff : 0000:08:00.0 fe30300000-fe304fffff : PCI Bus 0000:04 fe30300000-fe303fffff : 0000:04:00.0 fe30300000-fe303fffff : 0000:04:00.0 fe30400000-fe30403fff : 0000:04:00.0 fe30404000-fe30404fff : 0000:04:00.0 afe00000000-affffffffff : 0000:03:00.0 This is the memory which shifts wit= h nokaslr Bert Karwatzki