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Tue, 29 Sep 2020 11:10:10 +0000 Received: from DBAPR08MB5702.eurprd08.prod.outlook.com ([fe80::910f:c3ac:ef51:91ac]) by DBAPR08MB5702.eurprd08.prod.outlook.com ([fe80::910f:c3ac:ef51:91ac%4]) with mapi id 15.20.3433.032; Tue, 29 Sep 2020 11:10:10 +0000 From: Rahul Singh To: Julien Grall CC: "xen-devel@lists.xenproject.org" , "alex.bennee@linaro.org" , "masami.hiramatsu@linaro.org" , "ehem+xen@m5p.com" , Bertrand Marquis , Andre Przywara , Julien Grall , Stefano Stabellini , Volodymyr Babchuk , Andrew Cooper , George Dunlap , Ian Jackson , Jan Beulich , Wei Liu , =?iso-8859-1?Q?Roger_Pau_Monn=E9?= Subject: Re: [PATCH 0/4] xen/arm: Unbreak ACPI Thread-Topic: [PATCH 0/4] xen/arm: Unbreak ACPI Thread-Index: AQHWlEepyIutvb0zuEycmzpL14SOt6l/eH4A Date: Tue, 29 Sep 2020 11:10:10 +0000 Message-ID: References: <20200926205542.9261-1-julien@xen.org> In-Reply-To: <20200926205542.9261-1-julien@xen.org> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: Authentication-Results-Original: xen.org; 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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Sep 2020 11:10:49.8143 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 42b9d2bb-f82b-49ed-f4dc-08d8646852a2 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: DB5EUR03FT052.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: VE1PR08MB5021 Hello, > On 26 Sep 2020, at 9:55 pm, Julien Grall wrote: >=20 > From: Julien Grall >=20 > Hi all, >=20 > Xen on ARM has been broken for quite a while on ACPI systems. This > series aims to fix it. We also observed the panic after enabling the ACPI for ARM N1SDP board earl= ier. (XEN) Xen call trace: (XEN) [<0000000000271b24>] set_fixmap+0x28/0x2c (PC) (XEN) [<0000000000271b18>] set_fixmap+0x1c/0x2c (LR) (XEN) [<0000000000267d58>] __acpi_map_table+0x38/0x94 (XEN) [<00000000002501a4>] acpi_os_map_memory+0x18/0x64 After applying this patch series panic is fixed and XEN is able to boot wit= h ACPI enabled.=20 >=20 > Unfortunately I don't have a system with ACPI v6.0 or later (QEMU seems > to only support 5.1). So I did only some light testing. >=20 > I have only build tested the x86 side so far. >=20 > Cheers, >=20 > *** BLURB HERE *** >=20 > Julien Grall (4): > xen/acpi: Rework acpi_os_map_memory() and acpi_os_unmap_memory() > xen/arm: acpi: The fixmap area should always be cleared during > failure/unmap > xen/arm: Check if the platform is not using ACPI before initializing > Dom0less > xen/arm: Introduce fw_unreserved_regions() and use it >=20 > xen/arch/arm/acpi/lib.c | 79 ++++++++++++++++++++++++++++++------- > xen/arch/arm/kernel.c | 2 +- > xen/arch/arm/setup.c | 25 +++++++++--- > xen/arch/x86/acpi/lib.c | 18 +++++++++ > xen/drivers/acpi/osl.c | 34 ++++++++-------- > xen/include/asm-arm/setup.h | 2 +- > xen/include/xen/acpi.h | 1 + > 7 files changed, 123 insertions(+), 38 deletions(-) >=20 > --=20 > 2.17.1 >=20 >=20