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    SubjectRe: [PATCH v9 4/5] x86/PCI: Enable a 64bit BAR on AMD Family 15h (Models 30h-3fh) Processors v5
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    On 11/21/2017 08:34 AM, Christian König wrote:
    > Hi Boris,
    >
    > attached are two patches.
    >
    > The first one is a trivial fix for the infinite loop issue, it now
    > correctly aborts the fixup when it can't find address space for the
    > root window.
    >
    > The second is a workaround for your board. It simply checks if there
    > is exactly one Processor Function to apply this fix on.
    >
    > Both are based on linus current master branch. Please test if they fix
    > your issue.


    Yes, they do fix it but that's because the feature is disabled.

    Do you know what the actual problem was (on Xen)?

    Thanks.
    -boris

    >
    > Thanks for the help,
    > Christian.
    >
    > Am 20.11.2017 um 17:33 schrieb Boris Ostrovsky:
    >> On 11/20/2017 11:07 AM, Christian König wrote:
    >>> Am 20.11.2017 um 16:51 schrieb Boris Ostrovsky:
    >>>> (and then it breaks differently as a Xen guest --- we hung on the last
    >>>> pci_read_config_dword(), I haven't looked at this at all yet)
    >>> Hui? How does this fix applies to a Xen guest in the first place?
    >>>
    >>> Please provide the output of "lspci -nn" and explain further what is
    >>> your config with Xen.
    >>>
    >>>
    >>
    >> This is dom0.
    >>
    >> -bash-4.1# lspci -nn
    >> 00:00.0 Host bridge [0600]: ATI Technologies Inc RD890 Northbridge only
    >> dual slot (2x16) PCI-e GFX Hydra part [1002:5a10] (rev 02)
    >> 00:00.2 Generic system peripheral [0806]: ATI Technologies Inc Device
    >> [1002:5a23]
    >> 00:0d.0 PCI bridge [0604]: ATI Technologies Inc RD890 PCI to PCI bridge
    >> (external gfx1 port B) [1002:5a1e]
    >> 00:11.0 SATA controller [0106]: ATI Technologies Inc SB700/SB800 SATA
    >> Controller [AHCI mode] [1002:4391]
    >> 00:12.0 USB Controller [0c03]: ATI Technologies Inc SB700/SB800 USB
    >> OHCI0 Controller [1002:4397]
    >> 00:12.1 USB Controller [0c03]: ATI Technologies Inc SB700 USB OHCI1
    >> Controller [1002:4398]
    >> 00:12.2 USB Controller [0c03]: ATI Technologies Inc SB700/SB800 USB EHCI
    >> Controller [1002:4396]
    >> 00:13.0 USB Controller [0c03]: ATI Technologies Inc SB700/SB800 USB
    >> OHCI0 Controller [1002:4397]
    >> 00:13.1 USB Controller [0c03]: ATI Technologies Inc SB700 USB OHCI1
    >> Controller [1002:4398]
    >> 00:13.2 USB Controller [0c03]: ATI Technologies Inc SB700/SB800 USB EHCI
    >> Controller [1002:4396]
    >> 00:14.0 SMBus [0c05]: ATI Technologies Inc SBx00 SMBus Controller
    >> [1002:4385] (rev 3d)
    >> 00:14.3 ISA bridge [0601]: ATI Technologies Inc SB700/SB800 LPC host
    >> controller [1002:439d]
    >> 00:14.4 PCI bridge [0604]: ATI Technologies Inc SBx00 PCI to PCI Bridge
    >> [1002:4384]
    >> 00:14.5 USB Controller [0c03]: ATI Technologies Inc SB700/SB800 USB
    >> OHCI2 Controller [1002:4399]
    >> 00:18.0 Host bridge [0600]: Advanced Micro Devices [AMD] Device
    >> [1022:1600]
    >> 00:18.1 Host bridge [0600]: Advanced Micro Devices [AMD] Device
    >> [1022:1601]
    >> 00:18.2 Host bridge [0600]: Advanced Micro Devices [AMD] Device
    >> [1022:1602]
    >> 00:18.3 Host bridge [0600]: Advanced Micro Devices [AMD] Device
    >> [1022:1603]
    >> 00:18.4 Host bridge [0600]: Advanced Micro Devices [AMD] Device
    >> [1022:1604]
    >> 00:18.5 Host bridge [0600]: Advanced Micro Devices [AMD] Device
    >> [1022:1605]
    >> 00:19.0 Host bridge [0600]: Advanced Micro Devices [AMD] Device
    >> [1022:1600]
    >> 00:19.1 Host bridge [0600]: Advanced Micro Devices [AMD] Device
    >> [1022:1601]
    >> 00:19.2 Host bridge [0600]: Advanced Micro Devices [AMD] Device
    >> [1022:1602]
    >> 00:19.3 Host bridge [0600]: Advanced Micro Devices [AMD] Device
    >> [1022:1603]
    >> 00:19.4 Host bridge [0600]: Advanced Micro Devices [AMD] Device
    >> [1022:1604]
    >> 00:19.5 Host bridge [0600]: Advanced Micro Devices [AMD] Device
    >> [1022:1605]
    >> 01:04.0 VGA compatible controller [0300]: Matrox Graphics, Inc. MGA
    >> G200eW WPCM450 [102b:0532] (rev 0a)
    >> 02:00.0 Ethernet controller [0200]: Intel Corporation 82576 Gigabit
    >> Network Connection [8086:10c9] (rev 01)
    >> 02:00.1 Ethernet controller [0200]: Intel Corporation 82576 Gigabit
    >> Network Connection [8086:10c9] (rev 01)
    >> -bash-4.1#
    >>
    >>
    >> -boris
    >
    >

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