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[Xen-devel] RE: Workaround for the corrupted Intel X48 DMAR table
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Neo,
Pls try attached patch, which return error when rmrr
range is incorrect during DMAR parsing. This results in disable VT-d. It
should let your machine boot successfully. BTW, we are cleaning up VT-d code
to handle errors gracefully.
Randy (Weidong) From: Han, Weidong Sent: 2008年7月16日 10:14 To: 'Neo Jia' Cc: 'xen-devel@xxxxxxxxxxxxxxxxxxx'; Zhao, Yu; 'Jean Guyader' Subject: RE: Workaround for the corrupted Intel X48 DMAR table From your log, one RMRR range is incorrect: (XEN) RMRR: base address = 80000000, end address =
7fffffff.
We are setting up environment to debug this issue.
Randy (Weidong) From: Neo Jia [mailto:neojia@xxxxxxxxx] Sent: 2008年7月16日 9:31 To: Han, Weidong Cc: xen-devel@xxxxxxxxxxxxxxxxxxx; Zhao, Yu; Jean Guyader Subject: Re: Workaround for the corrupted Intel X48 DMAR table I finally can get the serial port PCI card working, though it will hangs the Dom0 but it is enough for me at this moment. The following is the log after applying your patch. Thanks, Neo (XEN) VGA is graphics mode 1280x1024, 32 bpp (XEN) VBE/DDC methods: none; EDID transfer time: 0 seconds (XEN) EDID info not retrieved because no DDC retrieval method detected (XEN) Disc information: (XEN) Found 1 MBR signatures (XEN) Found 1 EDD information structures (XEN) Xen-e820 RAM map: (XEN) 0000000000000000 - 000000000009dc00 (usable) (XEN) 000000000009dc00 - 00000000000a0000 (reserved) (XEN) 00000000000e0000 - 0000000000100000 (reserved) (XEN) 0000000000100000 - 000000007ebf1000 (usable) (XEN) 000000007ebf1000 - 000000007ec76000 (ACPI NVS) (XEN) 000000007ec76000 - 000000007fdf1000 (usable) (XEN) 000000007fdf1000 - 000000007fdf3000 (reserved) (XEN) 000000007fdf3000 - 000000007fe8b000 (usable) (XEN) 000000007fe8b000 - 000000007fee1000 (ACPI NVS) (XEN) 000000007fee1000 - 000000007fee6000 (usable) (XEN) 000000007fee6000 - 000000007fef2000 (ACPI data) (XEN) 000000007fef2000 - 000000007fef3000 (usable) (XEN) 000000007fef3000 - 000000007feff000 (ACPI data) (XEN) 000000007feff000 - 000000007ff00000 (usable) (XEN) 000000007ff00000 - 0000000080000000 (reserved) (XEN) 00000000f0000000 - 00000000f8000000 (reserved) (XEN) 00000000ffe00000 - 0000000100000000 (reserved) (XEN) System RAM: 2045MB (2094752kB) (XEN) ACPI: RSDP 000FE020, 0014 (r0 INTEL ) (XEN) ACPI: RSDT 7FEFD038, 0068 (r1 INTEL DX48BT2 612 1000013) (XEN) ACPI: FACP 7FEFC000, 0074 (r1 INTEL DX48BT2 612 MSFT 1000013) (XEN) ACPI: DSDT 7FEF7000, 4076 (r1 INTEL DX48BT2 612 MSFT 1000013) (XEN) ACPI: FACS 7FE9A000, 0040 (XEN) ACPI: APIC 7FEF6000, 0078 (r1 INTEL DX48BT2 612 MSFT 1000013) (XEN) ACPI: WDDT 7FEF5000, 0040 (r1 INTEL DX48BT2 612 MSFT 1000013) (XEN) ACPI: MCFG 7FEF4000, 003C (r1 INTEL DX48BT2 612 MSFT 1000013) (XEN) ACPI: ASF! 7FEF3000, 00A6 (r32 INTEL DX48BT2 612 MSFT 1000013) (XEN) ACPI: DMAR 7FEF1000, 0120 (r1 INTEL DX48BT2 612 MSFT 1000013) (XEN) ACPI: SSDT 7FEEE000, 0204 (r1 INTEL CpuPm 612 MSFT 1000013) (XEN) ACPI: SSDT 7FEED000, 01F9 (r1 INTEL Cpu0Ist 612 MSFT 1000013) (XEN) ACPI: SSDT 7FEEC000, 01F9 (r1 INTEL Cpu1Ist 612 MSFT 1000013) (XEN) ACPI: SSDT 7FEEB000, 01F9 (r1 INTEL Cpu2Ist 612 MSFT 1000013) (XEN) ACPI: SSDT 7FEEA000, 01F9 (r1 INTEL Cpu3Ist 612 MSFT 1000013) (XEN) ACPI: SSDT 7FEE9000, 01CF (r1 INTEL Cpu0Cst 612 MSFT 1000013) (XEN) ACPI: SSDT 7FEE8000, 01CF (r1 INTEL Cpu1Cst 612 MSFT 1000013) (XEN) ACPI: SSDT 7FEE7000, 01CF (r1 INTEL Cpu2Cst 612 MSFT 1000013) (XEN) ACPI: SSDT 7FEE6000, 01CF (r1 INTEL Cpu3Cst 612 MSFT 1000013) (XEN) ACPI: WDTT 7FEEF000, 02CC (r1 INTEL DX48BT2 612 MSFT 1000013) (XEN) ACPI: ASPT 7FEF0000, 002C (r1 INTEL PerfTune 612 MSFT 1000013) (XEN) Xen heap: 14MB (14752kB) (XEN) Domain heap initialised: DMA width 32 bits (XEN) Processor #0 6:15 APIC version 20 (XEN) Processor #2 6:15 APIC version 20 (XEN) Processor #1 6:15 APIC version 20 (XEN) Processor #3 6:15 APIC version 20 (XEN) IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23 (XEN) Enabling APIC mode: Flat. Using 1 I/O APICs (XEN) RMRR: base address = e0000, end address = effff (XEN) RMRR: base address = 80000000, end address = 7fffffff (XEN) Intel VT-d has been enabled (XEN) Using scheduler: SMP Credit Scheduler (credit) (XEN) Detected 2400.150 MHz processor. (XEN) HVM: VMX enabled (XEN) CPU0: Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz stepping 0b (XEN) Booting processor 1/2 eip 8c000 (XEN) CPU1: Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz stepping 0b (XEN) Booting processor 2/1 eip 8c000 (XEN) CPU2: Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz stepping 0b (XEN) Booting processor 3/3 eip 8c000 (XEN) CPU3: Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz stepping 0b (XEN) Total of 4 processors activated. (XEN) ENABLING IO-APIC IRQs (XEN) -> Using new ACK method (XEN) Platform timer is 3.579MHz ACPI PM Timer (XEN) Brought up 4 CPUs (XEN) I/O virtualisation enabled (XEN) I/O virtualisation for PV guests disabled (XEN) (XEN) **************************************** (XEN) Panic on CPU 0: (XEN) iommu_enable_translation(676): DMAR hardware is malfunctional, please disable IOMMU (XEN) **************************************** (XEN) (XEN) Reboot in five seconds... On Mon, Jul 14, 2008 at 2:01 AM, Han, Weidong <weidong.han@xxxxxxxxx> wrote:
-- I would remember that if researchers were not ambitious probably today we haven't the technology we are using!
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