On Mon, 31 Jul 2017 12:12:45 +0200, Jan Beulich <jbeul...@suse.com> wrote:
"Andreas Kinzler" <ml...@hfp.de> 07/17/17 6:32 PM >>>
Jan, I still have access to the hardware so perhaps we can finally
solve
this problem.
Feel free to go ahead; I'll be on vacation for the next three weeks.
Perhaps we can shortcut debugging a bit because I looked through the
patches of XenServer 7.2 and found the attached patch. Now I tried it
and
it seems to solve all the problems. Does that patch look good to you,
too?
Iirc the patch had even been submitted once, and rejected as being not
generally correct (i.e. it cures a symptom rather than the cause). What
we'd need to know is the order of actions the guest takes which ought to
result in the vector getting unmasked, but doesn't in reality.
I defined XEN_PT_LOGGING_ENABLED in xen_pt.h as requested without the
"hack" patch. Log is attached. Does it help?
Regards Andreas
[00:05.0] xen_pt_realize: Assigning real physical device 02:00.0 to devfn 0x28
[00:05.0] xen_pt_register_regions: IO region 0 registered (size=0x00000100
base_addr=0x0000e000 type: 0x1)
[00:05.0] xen_pt_register_regions: IO region 1 registered (size=0x00004000
base_addr=0xdf2c0000 type: 0x4)
[00:05.0] xen_pt_register_regions: IO region 3 registered (size=0x00040000
base_addr=0xdf280000 type: 0x4)
[00:05.0] xen_pt_register_regions: Expansion ROM registered (size=0x00080000
base_addr=0xdf200000)
[00:05.0] xen_pt_config_reg_init: Offset 0x000e mismatch! Emulated=0x0080,
host=0x0000, syncing to 0x0080.
[00:05.0] xen_pt_config_reg_init: Offset 0x0010 mismatch! Emulated=0x0000,
host=0xe001, syncing to 0xe001.
[00:05.0] xen_pt_config_reg_init: Offset 0x0014 mismatch! Emulated=0x0000,
host=0xdf2c0004, syncing to 0xdf2c0004.
[00:05.0] xen_pt_config_reg_init: Offset 0x001c mismatch! Emulated=0x0000,
host=0xdf280004, syncing to 0xdf280004.
[00:05.0] xen_pt_config_reg_init: Offset 0x0052 mismatch! Emulated=0x0000,
host=0x0603, syncing to 0x0603.
[00:05.0] xen_pt_config_reg_init: Offset 0x00aa mismatch! Emulated=0x0000,
host=0x0080, syncing to 0x0080.
[00:05.0] xen_pt_config_reg_init: Offset 0x006c mismatch! Emulated=0x0000,
host=0x10008025, syncing to 0x8025.
[00:05.0] xen_pt_config_reg_init: Offset 0x007a mismatch! Emulated=0x0000,
host=0x1042, syncing to 0x1042.
[00:05.0] xen_pt_msix_init: get MSI-X table BAR base 0xdf2c0000
[00:05.0] xen_pt_msix_init: table_off = 0x2000, total_entries = 15
[00:05.0] xen_pt_msix_init: mapping physical MSI-X table to 0x7fc1bb3e9000
[00:05.0] xen_pt_config_reg_init: Offset 0x00c2 mismatch! Emulated=0x0000,
host=0x000e, syncing to 0x000e.
[00:05.0] xen_pt_pci_intx: intx=1
[00:05.0] xen_pt_realize: Real physical device 02:00.0 registered successfully
[00:05.0] msi_msix_update: Updating MSI-X with pirq 55 gvec 0x71 gflags 0x1301
(entry: 0)
[00:05.0] msi_msix_update: Updating MSI-X with pirq 54 gvec 0xa1 gflags 0x1302
(entry: 0x1)
[00:05.0] msi_msix_update: Updating MSI-X with pirq 53 gvec 0xa1 gflags 0x1304
(entry: 0x2)
[00:05.0] msi_msix_update: Updating MSI-X with pirq 52 gvec 0xa1 gflags 0x1308
(entry: 0x3)
[00:05.0] msi_msix_update: Updating MSI-X with pirq 51 gvec 0x61 gflags 0x1301
(entry: 0x4)
[00:05.0] msi_msix_update: Updating MSI-X with pirq 50 gvec 0x71 gflags 0x1302
(entry: 0x5)
[00:05.0] msi_msix_update: Updating MSI-X with pirq 49 gvec 0x71 gflags 0x1304
(entry: 0x6)
[00:05.0] msi_msix_update: Updating MSI-X with pirq 48 gvec 0x71 gflags 0x1308
(entry: 0x7)
[00:05.0] msi_msix_update: Updating MSI-X with pirq 47 gvec 0xb2 gflags 0x1301
(entry: 0x8)
[00:05.0] msi_msix_update: Updating MSI-X with pirq 46 gvec 0x61 gflags 0x1302
(entry: 0x9)
[00:05.0] msi_msix_update: Updating MSI-X with pirq 45 gvec 0x61 gflags 0x1304
(entry: 0xa)
[00:05.0] msi_msix_update: Updating MSI-X with pirq 44 gvec 0x61 gflags 0x1308
(entry: 0xb)
[00:05.0] msi_msix_update: Updating MSI-X with pirq 43 gvec 0xa2 gflags 0x1301
(entry: 0xc)
[00:05.0] msi_msix_update: Updating MSI-X with pirq 42 gvec 0xb2 gflags 0x1302
(entry: 0xd)
[00:05.0] msi_msix_update: Updating MSI-X with pirq 41 gvec 0xb2 gflags 0x1304
(entry: 0xe)
[00:05.0] xen_pt_msixctrl_reg_write: enable MSI-X
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