From patchwork Wed Jan 15 12:53:40 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Igor Mammedov X-Patchwork-Id: 13940419 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 916E8C02180 for ; Wed, 15 Jan 2025 12:57:59 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tY2uD-0004nT-Lz; Wed, 15 Jan 2025 07:53:57 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tY2uB-0004Uc-4S for qemu-devel@nongnu.org; Wed, 15 Jan 2025 07:53:55 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tY2u8-0007BS-Q8 for qemu-devel@nongnu.org; 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Wed, 15 Jan 2025 12:53:49 +0000 (UTC) Received: from dell-r430-03.lab.eng.brq2.redhat.com (dell-r430-03.lab.eng.brq2.redhat.com [10.37.153.18]) by mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 4224D19560BC; Wed, 15 Jan 2025 12:53:47 +0000 (UTC) From: Igor Mammedov To: qemu-devel@nongnu.org Cc: mst@redhat.com, anisinha@redhat.com Subject: [PATCH 1/3] tests: acpi: whitelist expected blobs Date: Wed, 15 Jan 2025 13:53:40 +0100 Message-ID: <20250115125342.3883374-2-imammedo@redhat.com> In-Reply-To: <20250115125342.3883374-1-imammedo@redhat.com> References: <20250115125342.3883374-1-imammedo@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.40 Received-SPF: pass client-ip=170.10.129.124; envelope-from=imammedo@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.141, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Signed-off-by: Igor Mammedov Acked-by: Ani Sinha --- tests/qtest/bios-tables-test-allowed-diff.h | 40 +++++++++++++++++++++ 1 file changed, 40 insertions(+) diff --git a/tests/qtest/bios-tables-test-allowed-diff.h b/tests/qtest/bios-tables-test-allowed-diff.h index dfb8523c8b..085dfa9ff4 100644 --- a/tests/qtest/bios-tables-test-allowed-diff.h +++ b/tests/qtest/bios-tables-test-allowed-diff.h @@ -1 +1,41 @@ /* List of comma-separated changed AML files to ignore */ +"tests/data/acpi/x86/pc/DSDT", +"tests/data/acpi/x86/pc/DSDT.acpierst", +"tests/data/acpi/x86/pc/DSDT.acpihmat", +"tests/data/acpi/x86/pc/DSDT.bridge", +"tests/data/acpi/x86/pc/DSDT.cphp", +"tests/data/acpi/x86/pc/DSDT.dimmpxm", +"tests/data/acpi/x86/pc/DSDT.hpbridge", +"tests/data/acpi/x86/pc/DSDT.ipmikcs", +"tests/data/acpi/x86/pc/DSDT.memhp", +"tests/data/acpi/x86/pc/DSDT.nohpet", +"tests/data/acpi/x86/pc/DSDT.numamem", +"tests/data/acpi/x86/pc/DSDT.roothp", +"tests/data/acpi/x86/q35/DSDT", +"tests/data/acpi/x86/q35/DSDT.acpierst", +"tests/data/acpi/x86/q35/DSDT.acpihmat", +"tests/data/acpi/x86/q35/DSDT.acpihmat-generic-x", +"tests/data/acpi/x86/q35/DSDT.acpihmat-noinitiator", +"tests/data/acpi/x86/q35/DSDT.applesmc", +"tests/data/acpi/x86/q35/DSDT.bridge", +"tests/data/acpi/x86/q35/DSDT.core-count", +"tests/data/acpi/x86/q35/DSDT.core-count2", +"tests/data/acpi/x86/q35/DSDT.cphp", +"tests/data/acpi/x86/q35/DSDT.cxl", +"tests/data/acpi/x86/q35/DSDT.dimmpxm", +"tests/data/acpi/x86/q35/DSDT.ipmibt", +"tests/data/acpi/x86/q35/DSDT.ipmismbus", +"tests/data/acpi/x86/q35/DSDT.ivrs", +"tests/data/acpi/x86/q35/DSDT.memhp", +"tests/data/acpi/x86/q35/DSDT.mmio64", +"tests/data/acpi/x86/q35/DSDT.multi-bridge", +"tests/data/acpi/x86/q35/DSDT.nohpet", +"tests/data/acpi/x86/q35/DSDT.numamem", +"tests/data/acpi/x86/q35/DSDT.pvpanic-isa", +"tests/data/acpi/x86/q35/DSDT.thread-count", +"tests/data/acpi/x86/q35/DSDT.thread-count2", +"tests/data/acpi/x86/q35/DSDT.tis.tpm12", +"tests/data/acpi/x86/q35/DSDT.tis.tpm2", +"tests/data/acpi/x86/q35/DSDT.type4-count", +"tests/data/acpi/x86/q35/DSDT.viot", +"tests/data/acpi/x86/q35/DSDT.xapic", From patchwork Wed Jan 15 12:53:41 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Igor Mammedov X-Patchwork-Id: 13940417 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 AA209C02185 for ; Wed, 15 Jan 2025 12:55:43 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tY2uP-00067s-Bf; Wed, 15 Jan 2025 07:54:09 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tY2uC-0004kE-OR for qemu-devel@nongnu.org; Wed, 15 Jan 2025 07:53:56 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tY2uA-0007Bw-5D for qemu-devel@nongnu.org; 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Wed, 15 Jan 2025 12:53:50 +0000 (UTC) Received: from dell-r430-03.lab.eng.brq2.redhat.com (dell-r430-03.lab.eng.brq2.redhat.com [10.37.153.18]) by mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id C5A0919560BC; Wed, 15 Jan 2025 12:53:49 +0000 (UTC) From: Igor Mammedov To: qemu-devel@nongnu.org Cc: mst@redhat.com, anisinha@redhat.com Subject: [PATCH 2/3] pci: acpi: Windows 'PCI Label Id' bug workaround Date: Wed, 15 Jan 2025 13:53:41 +0100 Message-ID: <20250115125342.3883374-3-imammedo@redhat.com> In-Reply-To: <20250115125342.3883374-1-imammedo@redhat.com> References: <20250115125342.3883374-1-imammedo@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.40 Received-SPF: pass client-ip=170.10.133.124; envelope-from=imammedo@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -39 X-Spam_score: -4.0 X-Spam_bar: ---- X-Spam_report: (-4.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.141, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-1.793, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Current versions of Windows call _DSM(func=7) regardless of whether it is supported or not. It leads to NICs having bogus 'PCI Label Id = 0', where none should be set at all. Also presence of 'PCI Label Id' triggers another Windows bug on localized versions that leads to hangs. The later bug is fixed in latest updates for 'Windows Server' but not in consumer versions of Windows (and there is no plans to fix it as far as I'm aware). Given it's easy, implement Microsoft suggested workaround (return invalid Package) so that affected Windows versions could boot on QEMU. This would effectvely remove bogus 'PCI Label Id's on NICs, but MS teem confirmed that flipping 'PCI Label Id' should not change 'Network Connection' ennumeration, so it should be safe for QEMU to change _DSM without any compat code. Smoke tested with WinXP and WS2022 Resolves: https://gitlab.com/qemu-project/qemu/-/issues/774 Signed-off-by: Igor Mammedov --- hw/i386/acpi-build.c | 33 +++++++++++++++++++++++---------- 1 file changed, 23 insertions(+), 10 deletions(-) diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 733b8f0851..1311a0d4f3 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -654,6 +654,7 @@ static Aml *aml_pci_pdsm(void) Aml *acpi_index = aml_local(2); Aml *zero = aml_int(0); Aml *one = aml_int(1); + Aml *not_supp = aml_int(0xFFFFFFFF); Aml *func = aml_arg(2); Aml *params = aml_arg(4); Aml *bnum = aml_derefof(aml_index(params, aml_int(0))); @@ -678,7 +679,7 @@ static Aml *aml_pci_pdsm(void) */ ifctx1 = aml_if(aml_lnot( aml_or(aml_equal(acpi_index, zero), - aml_equal(acpi_index, aml_int(0xFFFFFFFF)), NULL) + aml_equal(acpi_index, not_supp), NULL) )); { /* have supported functions */ @@ -704,18 +705,30 @@ static Aml *aml_pci_pdsm(void) { Aml *pkg = aml_package(2); - aml_append(pkg, zero); - /* - * optional, if not impl. should return null string - */ - aml_append(pkg, aml_string("%s", "")); - aml_append(ifctx, aml_store(pkg, ret)); - aml_append(ifctx, aml_store(aml_call2("AIDX", bnum, sunum), acpi_index)); + aml_append(ifctx, aml_store(pkg, ret)); /* - * update acpi-index to actual value + * Windows calls func=7 without checking if it's available, + * as workaround Microsoft has suggested to return invalid for func7 + * Package, so return 2 elements package but only initialize elements + * when acpi_index is supported and leave them uninitialized, which + * leads elements to being Uninitialized ObjectType and should trip + * Windows into discarding result as an unexpected and prevent setting + * bogus 'PCI Label' on the device. */ - aml_append(ifctx, aml_store(acpi_index, aml_index(ret, zero))); + ifctx1 = aml_if(aml_lnot(aml_lor( + aml_equal(acpi_index, zero), aml_equal(acpi_index, not_supp) + ))); + { + aml_append(ifctx1, aml_store(acpi_index, aml_index(ret, zero))); + /* + * optional, if not impl. should return null string + */ + aml_append(ifctx1, aml_store(aml_string("%s", ""), + aml_index(ret, one))); + } + aml_append(ifctx, ifctx1); + aml_append(ifctx, aml_return(ret)); }