Re: [Xen-devel] Non readable output with XEN 4.4.3 serial console

[Pasi Kärkkäinen]

On Sat, Sep 26, 2015 at 08:17:05PM +0300, NiX wrote:
> Hi.
> 

Hi,

> As I posted about a week ago. I had an issue with an AMD FX-8350/Radeon
> 7970/Gigabyte GA-970A-UD3 and still do. After passing through the 7970, it
> works just fine on windows 10 for as long as I do not reboot/shutdown that
> VM.
> 
> Upon shutting down or rebooting the VM whole system becomes unresponsive.
> A full reboot of Dom0 is required in order to get passthrough working
> again without a system crash.
> 
> Someone suggested me to purchase a PCI serial card and I did. I can get
> linux serial console working without any issue including login via that
> console.
> 

Good.

> As soon as I enable XEN hvc0 in kernel boot params all I get is VGA
> console output though I did not enabled it via XEN boot params.
> 
> 
> A working one: GRUB_CMDLINE_LINUX="console=tty0 console=ttyS1,115200n81".
> A non working one: GRUB_CMDLINE_LINUX="console=hvc0" as suggested at
> http://wiki.xen.org/wiki/Xen_Serial_Console
> 

Please add "earlyprintk=xen nomodeset" for dom0 linux kernel aswell.. 
"console=hvc0 earlyprintk=xen nomodeset".


> dmesg | grep ttyS
> serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
> 00:04: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
> :03:07.0: ttyS1 at I/O 0xc120 (irq = 21) is a 16550A --> Is a PCI
> serial card
> 
> GRUB_CMDLINE_XEN_DEFAULT="dom0_mem=4096M,max:8192M dom0_max_vcpus=4
> dom0_vcpus_pin iommu=1 loglvl=all guest_loglvl=all
> com1=115200,8n1,0xc120,21 console=com1"
> 

Did you try with "com1=115200,8n1,0xc120,0" ? So giving 0 as the irq.
Also try with lower speeds.. like 38400, and even 9600.

And dom0_mem should probably have the same value as initial and max.


> Wit the above line I only get non-readable output. I tried it pretty much
> all way around including different RTS/CTS options and 3 different tools
> and the result was always non-readable output
> 

With the correct options it'll work with Xen too.

Which program are you using to display/capture the serial console?


Thanks,

-- Pasi


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[Xen-devel] [seabios baseline-only test] 38080: tolerable FAIL

[Platform Team regression test user]

This run is configured for baseline tests only.

flight 38080 seabios real [real]
http://osstest.xs.citrite.net/~osstest/testlogs/logs/38080/

Failures :-/ but no regressions.

Tests which did not succeed, but are not blocking:
 test-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsm 10 migrate-support-check 
fail never pass
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm 10 migrate-support-check 
fail never pass
 test-amd64-amd64-xl-qemuu-win7-amd64 17 guest-stop fail never pass
 test-amd64-i386-xl-qemuu-win7-amd64 17 guest-stop  fail never pass

version targeted for testing:
 seabios  423542e5669732ab426fb0bc5798f004cb0bb3d6
baseline version:
 seabios  e4d2b8ce5db86bd56efdaf64b974925bd7a7b249

Last test of basis37970  2015-09-18 06:54:33 Z9 days
Testing same since38080  2015-09-27 08:17:09 Z0 days1 attempts


People who touched revisions under test:
  Kevin O'Connor 

jobs:
 build-amd64-xsm  pass
 build-i386-xsm   pass
 build-amd64  pass
 build-i386   pass
 build-amd64-libvirt  pass
 build-i386-libvirt   pass
 build-amd64-pvopspass
 build-i386-pvops pass
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm   pass
 test-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsmpass
 test-amd64-amd64-xl-qemuu-debianhvm-amd64-xsmpass
 test-amd64-i386-xl-qemuu-debianhvm-amd64-xsm pass
 test-amd64-i386-qemuu-rhel6hvm-amd   pass
 test-amd64-amd64-xl-qemuu-debianhvm-amd64pass
 test-amd64-i386-xl-qemuu-debianhvm-amd64 pass
 test-amd64-amd64-xl-qemuu-ovmf-amd64 pass
 test-amd64-i386-xl-qemuu-ovmf-amd64  pass
 test-amd64-amd64-xl-qemuu-win7-amd64 fail
 test-amd64-i386-xl-qemuu-win7-amd64  fail
 test-amd64-i386-qemuu-rhel6hvm-intel pass
 test-amd64-i386-xl-qemuu-winxpsp3-vcpus1 pass
 test-amd64-amd64-xl-qemuu-winxpsp3   pass
 test-amd64-i386-xl-qemuu-winxpsp3pass



sg-report-flight on osstest.xs.citrite.net
logs: /home/osstest/logs
images: /home/osstest/images

Logs, config files, etc. are available at
http://osstest.xs.citrite.net/~osstest/testlogs/logs

Test harness code can be found at
http://xenbits.xensource.com/gitweb?p=osstest.git;a=summary


Push not applicable.


commit 423542e5669732ab426fb0bc5798f004cb0bb3d6
Author: Kevin O'Connor 
Date:   Fri Sep 11 16:19:02 2015 -0400

Use transition32_nmi_off from call32() and call16_back()

The call32() and call16_back() functions will always disable NMI and
enable a20 (via the call32_prep() function) so it is safe to use the
_nmi_off variant of transition32.

Signed-off-by: Kevin O'Connor 

commit 63766c43f1242b48fcacf616280777fd0388a168
Author: Kevin O'Connor 
Date:   Fri Sep 11 16:15:23 2015 -0400

Unify call32_sloppy() and call32()

Signed-off-by: Kevin O'Connor 

commit 46a346e7dbf41ab6b7813d7356840d5bd434d99f
Author: Kevin O'Connor 
Date:   Fri Sep 11 16:07:59 2015 -0400

Unify inline assembler in variants of call16 functions

The assembler between call16(), call16big() and call16_sloppy() are
very similar.  Rework the functions so that a single version of the
inline assembly can be used for all variants.

Signed-off-by: Kevin O'Connor 

commit 4c568d83d4fac6c7431ff94282104429af3680e9
Author: Kevin O'Connor 
Date:   Sun Sep 13 10:03:12 2015 -0400

Rename Call32Data to Call16Data

The variable stores information on how and what to restore during a
call to 16bit code, so Call16Data is a better name.

Signed-off-by: Kevin O'Connor 

commit 25eb06127206f376c21bb1b9f62bfbbdbae574e0
Author: Kevin O'Connor 
Date:   Fri Sep 11 15:38:43 2015 -0400

Unify smm/sloppy variants of call32_prep/post and call16_helper

The "smm" and "sloppy" variants of the 16bit to 32bit trampoline
backup/restore code are very similar.  They can be unified into a
single copy of each function.

[Xen-devel] [xen-4.6-testing test] 62328: regressions - FAIL

[osstest service owner]

flight 62328 xen-4.6-testing real [real]
http://logs.test-lab.xenproject.org/osstest/logs/62328/

Regressions :-(

Tests which did not succeed and are blocking,
including tests which could not be run:
 test-amd64-amd64-xl-qemut-debianhvm-amd64 19 guest-start/debianhvm.repeat fail 
REGR. vs. 62015
 test-amd64-i386-xl-qemut-debianhvm-amd64 19 guest-start/debianhvm.repeat fail 
REGR. vs. 62015

Regressions which are regarded as allowable (not blocking):
 test-amd64-i386-libvirt-pair 21 guest-migrate/src_host/dst_host fail REGR. vs. 
62015
 test-armhf-armhf-xl-rtds 11 guest-start   fail REGR. vs. 62015
 test-amd64-i386-xl-qemut-stubdom-debianhvm-amd64-xsm 13 guest-localmigrate 
fail blocked in 62015

Tests which did not succeed, but are not blocking:
 test-amd64-amd64-xl-pvh-amd  11 guest-start  fail   never pass
 test-amd64-amd64-xl-pvh-intel 11 guest-start  fail  never pass
 test-armhf-armhf-libvirt-vhd  9 debian-di-installfail   never pass
 test-armhf-armhf-xl-qcow2 9 debian-di-installfail   never pass
 test-armhf-armhf-xl-vhd   9 debian-di-installfail   never pass
 test-armhf-armhf-libvirt-qcow2  9 debian-di-installfail never pass
 test-armhf-armhf-xl-raw   9 debian-di-installfail   never pass
 test-armhf-armhf-libvirt-raw  9 debian-di-installfail   never pass
 test-armhf-armhf-libvirt 14 guest-saverestorefail   never pass
 test-armhf-armhf-libvirt 12 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt-xsm 12 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt 12 migrate-support-checkfail   never pass
 test-armhf-armhf-xl  12 migrate-support-checkfail   never pass
 test-armhf-armhf-xl  13 saverestore-support-checkfail   never pass
 test-amd64-amd64-libvirt-raw 11 migrate-support-checkfail   never pass
 test-amd64-amd64-xl-qemut-win7-amd64 17 guest-stop fail never pass
 test-amd64-i386-libvirt-raw  11 migrate-support-checkfail   never pass
 test-amd64-i386-xl-qemut-win7-amd64 17 guest-stop  fail never pass
 test-armhf-armhf-xl-xsm  13 saverestore-support-checkfail   never pass
 test-armhf-armhf-xl-xsm  12 migrate-support-checkfail   never pass
 test-armhf-armhf-xl-credit2  13 saverestore-support-checkfail   never pass
 test-armhf-armhf-xl-credit2  12 migrate-support-checkfail   never pass
 test-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsm 10 migrate-support-check 
fail never pass
 test-amd64-i386-libvirt-vhd  11 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt-vhd 11 migrate-support-checkfail   never pass
 test-amd64-i386-libvirt  12 migrate-support-checkfail   never pass
 test-armhf-armhf-xl-cubietruck 12 migrate-support-checkfail never pass
 test-armhf-armhf-xl-cubietruck 13 saverestore-support-checkfail never pass
 test-amd64-i386-libvirt-xsm  12 migrate-support-checkfail   never pass
 test-armhf-armhf-xl-arndale  12 migrate-support-checkfail   never pass
 test-armhf-armhf-xl-arndale  13 saverestore-support-checkfail   never pass
 test-amd64-i386-xl-qemuu-win7-amd64 17 guest-stop  fail never pass
 test-amd64-amd64-xl-qemuu-win7-amd64 17 guest-stop fail never pass
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm 10 migrate-support-check 
fail never pass
 test-amd64-i386-libvirt-qcow2 11 migrate-support-checkfail  never pass
 test-amd64-amd64-libvirt-qcow2 11 migrate-support-checkfail never pass
 test-armhf-armhf-libvirt-xsm 12 migrate-support-checkfail   never pass
 test-armhf-armhf-libvirt-xsm 14 guest-saverestorefail   never pass
 test-armhf-armhf-xl-multivcpu 13 saverestore-support-checkfail  never pass
 test-armhf-armhf-xl-multivcpu 12 migrate-support-checkfail  never pass

version targeted for testing:
 xen  7472ced461b4c4480a6dee2753a266f98e791456
baseline version:
 xen  70d63e48077f8fee8eda6d8d95eeda52a34d9077

Last test of basis62015  2015-09-14 22:22:30 Z   12 days
Failing since 62089  2015-09-17 06:48:20 Z   10 days4 attempts
Testing same since62328  2015-09-24 12:43:04 Z3 days1 attempts


People who touched revisions under test:
  Andrew Cooper 
  Chunyan Liu 
  Ian Campbell 
  Ian Jackson 
  Jan Beulich 
  Julien Grall 
  Kevin Tian 
  Roger Pau Monne 
  Roger Pau Monné 
  Stefano Stabellini 
  Tiejun Chen 

jobs:
 build-amd64-xsm

[Xen-devel] [linux-3.10 baseline-only test] 38079: tolerable FAIL

[Platform Team regression test user]

This run is configured for baseline tests only.

flight 38079 linux-3.10 real [real]
http://osstest.xs.citrite.net/~osstest/testlogs/logs/38079/

Failures :-/ but no regressions.

Tests which are failing intermittently (not blocking):
 test-amd64-amd64-xl-qemut-winxpsp3 3 host-install(3) broken in 37987 pass in 
38079
 test-amd64-i386-libvirt-pair 21 guest-migrate/src_host/dst_host fail in 37987 
pass in 38079
 test-amd64-amd64-xl-rtds 11 guest-startfail in 37987 pass in 38079
 test-amd64-amd64-libvirt-pair 21 guest-migrate/src_host/dst_host fail in 37987 
pass in 38079
 test-amd64-i386-rumpuserxen-i386 15 
rumpuserxen-demo-xenstorels/xenstorels.repeat fail pass in 37987

Regressions which are regarded as allowable (not blocking):
 test-amd64-i386-xl-qemut-stubdom-debianhvm-amd64-xsm 16 guest-localmigrate/x10 
fail blocked in 38060
 test-amd64-amd64-xl-qcow2 20 guest-start/debian.repeat fail in 37987 blocked 
in 38060
 test-amd64-i386-xl-qcow2 20 guest-start/debian.repeat fail in 37987 blocked in 
38060
 test-amd64-amd64-xl  21 guest-start/debian.repeatfail   like 38060
 test-amd64-amd64-xl-qemut-winxpsp3  9 windows-install  fail like 38060

Tests which did not succeed, but are not blocking:
 test-amd64-amd64-xl-pvh-intel 11 guest-start  fail  never pass
 test-armhf-armhf-xl-credit2   6 xen-boot fail   never pass
 test-amd64-amd64-xl-pvh-amd  11 guest-start  fail   never pass
 test-armhf-armhf-xl-midway6 xen-boot fail   never pass
 test-armhf-armhf-libvirt-xsm  6 xen-boot fail   never pass
 test-armhf-armhf-xl-qcow2 6 xen-boot fail   never pass
 test-armhf-armhf-xl-xsm   6 xen-boot fail   never pass
 test-armhf-armhf-libvirt  6 xen-boot fail   never pass
 test-armhf-armhf-libvirt-vhd  6 xen-boot fail   never pass
 test-armhf-armhf-xl-multivcpu  6 xen-boot fail  never pass
 test-armhf-armhf-libvirt-raw  6 xen-boot fail   never pass
 test-amd64-amd64-rumpuserxen-amd64 15 
rumpuserxen-demo-xenstorels/xenstorels.repeat fail never pass
 test-armhf-armhf-libvirt-qcow2  6 xen-boot fail never pass
 test-armhf-armhf-xl-raw   6 xen-boot fail   never pass
 test-armhf-armhf-xl-rtds  6 xen-boot fail   never pass
 test-armhf-armhf-xl   6 xen-boot fail   never pass
 test-armhf-armhf-xl-vhd   6 xen-boot fail   never pass
 test-amd64-i386-libvirt  12 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt 12 migrate-support-checkfail   never pass
 test-amd64-i386-libvirt-xsm  12 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt-xsm 12 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt-raw 11 migrate-support-checkfail   never pass
 test-amd64-i386-libvirt-raw  11 migrate-support-checkfail   never pass
 test-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsm 10 migrate-support-check 
fail never pass
 test-amd64-amd64-libvirt-vhd 11 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt-qcow2 11 migrate-support-checkfail never pass
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm 10 migrate-support-check 
fail never pass
 test-amd64-i386-libvirt-vhd  11 migrate-support-checkfail   never pass
 test-amd64-i386-libvirt-qcow2 11 migrate-support-checkfail  never pass
 test-amd64-amd64-xl-rtds 21 guest-start/debian.repeatfail   never pass
 test-amd64-i386-xl-qemut-win7-amd64 17 guest-stop  fail never pass
 test-amd64-amd64-xl-qemut-win7-amd64 17 guest-stop fail never pass
 test-amd64-i386-xl-qemuu-win7-amd64 17 guest-stop  fail never pass
 test-amd64-amd64-xl-qemuu-win7-amd64 17 guest-stop fail never pass

version targeted for testing:
 linux78fb9f4236d9077fb343fb5a4e55fe27075e9a1d
baseline version:
 linuxbfc167418de5987d6ec7d913459a1ee3c11763fb

Last test of basis38060  2015-09-25 17:07:38 Z2 days
Testing same since38079  2015-09-27 08:18:13 Z0 days1 attempts


People who touched revisions under test:

jobs:
 build-amd64-xsm  pass
 build-armhf-xsm  pass
 build-i386-xsm   pass
 build-amd64  pass
 build-armhf  pass
 build-i386   pass
 build-amd64-libvirt  pass
 build-armhf-libvirt  pass  

[Xen-devel] [linux-mingo-tip-master test] 62349: regressions - FAIL

[osstest service owner]

flight 62349 linux-mingo-tip-master real [real]
http://logs.test-lab.xenproject.org/osstest/logs/62349/

Regressions :-(

Tests which did not succeed and are blocking,
including tests which could not be run:
 test-amd64-amd64-xl-qemut-stubdom-debianhvm-amd64-xsm 13 guest-localmigrate 
fail REGR. vs. 60684
 test-amd64-i386-xl-qemut-stubdom-debianhvm-amd64-xsm 19 
guest-start/debianhvm.repeat fail REGR. vs. 60684

Regressions which are regarded as allowable (not blocking):
 test-amd64-i386-rumpuserxen-i386 15 
rumpuserxen-demo-xenstorels/xenstorels.repeat fail REGR. vs. 60684
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm 16 
guest-start/debianhvm.repeat fail REGR. vs. 60684

Tests which did not succeed, but are not blocking:
 test-amd64-amd64-xl-pvh-intel 14 guest-saverestorefail  never pass
 test-amd64-amd64-xl-pvh-amd  11 guest-start  fail   never pass
 test-amd64-amd64-libvirt 12 migrate-support-checkfail   never pass
 test-amd64-i386-libvirt-xsm  12 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt-xsm 12 migrate-support-checkfail   never pass
 test-amd64-i386-libvirt  12 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm 10 migrate-support-check 
fail never pass
 test-amd64-amd64-libvirt-qcow2 11 migrate-support-checkfail never pass
 test-amd64-amd64-libvirt-raw 11 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt-vhd 11 migrate-support-checkfail   never pass
 test-amd64-i386-libvirt-vhd  11 migrate-support-checkfail   never pass
 test-amd64-i386-libvirt-qcow2 11 migrate-support-checkfail  never pass
 test-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsm 10 migrate-support-check 
fail never pass
 test-amd64-amd64-xl-qemut-win7-amd64 17 guest-stop fail never pass
 test-amd64-i386-xl-qemuu-win7-amd64 17 guest-stop  fail never pass
 test-amd64-i386-libvirt-raw  11 migrate-support-checkfail   never pass
 test-amd64-amd64-xl-qemuu-win7-amd64 17 guest-stop fail never pass
 test-amd64-i386-xl-qemut-win7-amd64 17 guest-stop  fail never pass

version targeted for testing:
 linuxc509c2e1aa75d40c00b994b7f7ca74dd76712df5
baseline version:
 linux69f75ebe3b1d1e636c4ce0a0ee248edacc69cbe0

Last test of basis60684  2015-08-13 04:21:46 Z   45 days
Failing since 60712  2015-08-15 18:33:48 Z   43 days   20 attempts
Testing same since62349  2015-09-25 07:57:19 Z2 days1 attempts

jobs:
 build-amd64-xsm  pass
 build-i386-xsm   pass
 build-amd64  pass
 build-i386   pass
 build-amd64-libvirt  pass
 build-i386-libvirt   pass
 build-amd64-pvopspass
 build-i386-pvops pass
 build-amd64-rumpuserxen  pass
 build-i386-rumpuserxen   pass
 test-amd64-amd64-xl  pass
 test-amd64-i386-xl   pass
 test-amd64-amd64-xl-qemut-debianhvm-amd64-xsmpass
 test-amd64-i386-xl-qemut-debianhvm-amd64-xsm pass
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm   fail
 test-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsmpass
 test-amd64-amd64-xl-qemuu-debianhvm-amd64-xsmpass
 test-amd64-i386-xl-qemuu-debianhvm-amd64-xsm pass
 test-amd64-amd64-xl-qemut-stubdom-debianhvm-amd64-xsmfail
 test-amd64-i386-xl-qemut-stubdom-debianhvm-amd64-xsm fail
 test-amd64-amd64-libvirt-xsm pass
 test-amd64-i386-libvirt-xsm  pass
 test-amd64-amd64-xl-xsm  pass
 test-amd64-i386-xl-xsm   pass
 test-amd64-amd64-xl-pvh-amd  fail
 test-amd64-i386-qemut-rhel6hvm-amd   pass
 test-amd64-i386-qemuu-rhel6hvm-amd   pass
 test-amd64-amd64-xl-qemut-debianhvm-amd64pass
 test-amd64-i386-xl-qemut-debianhvm-amd64 pass
 test-amd64-amd64-xl-qemuu-debianhvm-amd64pass
 test-amd64-i386-xl-qemuu-debianhvm-amd64 pass
 test-amd64-i386-freebsd10-amd64  pass
 test-amd64-amd64-xl-qemuu-ovmf-amd64 pass
 test-amd64-i386-xl-qemuu-ovmf-amd64

[Xen-devel] [xen-4.2-testing test] 62380: tolerable FAIL - PUSHED

[osstest service owner]

flight 62380 xen-4.2-testing real [real]
http://logs.test-lab.xenproject.org/osstest/logs/62380/

Failures :-/ but no regressions.

Tests which are failing intermittently (not blocking):
 test-i386-i386-libvirt 18 guest-start/debian.repeat fail in 62285 pass in 62380
 test-i386-i386-xl-qemuu-winxpsp3 15 guest-localmigrate.2 fail in 62285 pass in 
62380
 test-amd64-amd64-xl-qemuu-win7-amd64 16 guest-localmigrate/x10 fail pass in 
62285

Regressions which are regarded as allowable (not blocking):
 test-amd64-amd64-xl-win7-amd64 17 guest-stop   fail like 62129
 test-amd64-i386-xl-qemut-win7-amd64 17 guest-stop  fail like 62129
 test-amd64-i386-xl-win7-amd64 17 guest-stop   fail  like 62129
 test-amd64-amd64-xl-qemut-win7-amd64 17 guest-stop fail like 62129

Tests which did not succeed, but are not blocking:
 test-amd64-amd64-rumpuserxen-amd64  1 build-check(1)   blocked n/a
 test-amd64-i386-rumpuserxen-i386  1 build-check(1)   blocked  n/a
 test-i386-i386-rumpuserxen-i386  1 build-check(1)   blocked  n/a
 test-amd64-amd64-xl-qemuu-win7-amd64 17 guest-stopfail in 62285 never pass
 test-i386-i386-xl-qcow2   9 debian-di-installfail   never pass
 test-amd64-amd64-xl-qcow2 9 debian-di-installfail   never pass
 test-amd64-i386-xl-qcow2  9 debian-di-installfail   never pass
 test-amd64-amd64-libvirt-qcow2  9 debian-di-installfail never pass
 test-i386-i386-libvirt-qcow2  9 debian-di-installfail   never pass
 test-amd64-i386-libvirt-qcow2  9 debian-di-installfail  never pass
 test-amd64-i386-xl-qemuu-ovmf-amd64  9 debian-hvm-install  fail never pass
 test-amd64-amd64-xl-qemuu-ovmf-amd64  9 debian-hvm-install fail never pass
 build-amd64-rumpuserxen   5 rumpuserxen-buildfail   never pass
 test-amd64-amd64-i386-pvgrub 10 guest-start  fail   never pass
 test-amd64-amd64-amd64-pvgrub 10 guest-start  fail  never pass
 build-i386-rumpuserxen5 rumpuserxen-buildfail   never pass
 test-amd64-amd64-libvirt 12 migrate-support-checkfail   never pass
 test-amd64-i386-libvirt  12 migrate-support-checkfail   never pass
 test-amd64-i386-migrupgrade  20 guest-start/debian   fail   never pass
 test-amd64-amd64-migrupgrade 20 guest-start/debian   fail   never pass
 test-amd64-i386-libvirt-raw  11 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt-raw 11 migrate-support-checkfail   never pass
 test-amd64-i386-libvirt-vhd  11 migrate-support-checkfail   never pass
 test-i386-i386-libvirt-raw   11 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt-vhd 11 migrate-support-checkfail   never pass
 test-i386-i386-libvirt-vhd   11 migrate-support-checkfail   never pass
 test-i386-i386-libvirt   12 migrate-support-checkfail   never pass
 test-amd64-i386-xl-qemuu-win7-amd64 17 guest-stop  fail never pass
 test-amd64-i386-xend-winxpsp3 21 leak-check/check fail  never pass
 test-amd64-i386-xend-qemut-winxpsp3 21 leak-check/checkfail never pass

version targeted for testing:
 xen  e4f09370f24a2226125659973655b9bae384f903
baseline version:
 xen  ba7d8144fd004cc1431d53b3a95d1755158f2444

Last test of basis62129  2015-09-18 15:41:31 Z9 days
Testing same since62285  2015-09-22 16:37:40 Z5 days2 attempts


People who touched revisions under test:
  Ian Jackson 
  Stefano Stabellini 

jobs:
 build-amd64  pass
 build-i386   pass
 build-amd64-libvirt  pass
 build-i386-libvirt   pass
 build-amd64-prev pass
 build-i386-prev  pass
 build-amd64-pvopspass
 build-i386-pvops pass
 build-amd64-rumpuserxen  fail
 build-i386-rumpuserxen   fail
 test-amd64-amd64-xl  pass
 test-amd64-i386-xl   pass
 test-i386-i386-xlpass
 test-amd64-i386-rhel6hvm-amd pass
 test-amd64-i386-qemut-rhel6hvm-amd   pass
 test-amd64-i386-qemuu-rhel6hvm-amd   pass
 test-amd64-amd64-xl-qemut-debianhvm-amd64pass
 

[Xen-devel] [linux-linus test] 62381: regressions - FAIL

[osstest service owner]

flight 62381 linux-linus real [real]
http://logs.test-lab.xenproject.org/osstest/logs/62381/

Regressions :-(

Tests which did not succeed and are blocking,
including tests which could not be run:
 test-armhf-armhf-xl-cubietruck  6 xen-bootfail REGR. vs. 59254
 test-armhf-armhf-xl-multivcpu  6 xen-boot fail REGR. vs. 59254
 test-armhf-armhf-xl-credit2   6 xen-boot  fail REGR. vs. 59254
 test-armhf-armhf-xl   6 xen-boot  fail REGR. vs. 59254
 test-amd64-i386-xl-qemut-stubdom-debianhvm-amd64-xsm 13 guest-localmigrate 
fail REGR. vs. 59254
 test-amd64-amd64-xl-qemut-stubdom-debianhvm-amd64-xsm 13 guest-localmigrate 
fail REGR. vs. 59254
 test-armhf-armhf-xl-xsm   6 xen-boot  fail REGR. vs. 59254

Regressions which are regarded as allowable (not blocking):
 test-armhf-armhf-xl-rtds 15 guest-start.2 fail REGR. vs. 59254
 test-armhf-armhf-libvirt-qcow2  6 xen-boot  fail baseline untested
 test-amd64-amd64-xl-qemuu-win7-amd64 17 guest-stop fail like 59254
 test-amd64-i386-xl-qemuu-win7-amd64 17 guest-stop  fail like 59254

Tests which did not succeed, but are not blocking:
 test-amd64-amd64-xl-pvh-amd  11 guest-start  fail   never pass
 test-amd64-amd64-xl-pvh-intel 14 guest-saverestorefail  never pass
 test-armhf-armhf-xl-raw   9 debian-di-installfail   never pass
 test-armhf-armhf-libvirt-raw  9 debian-di-installfail   never pass
 test-armhf-armhf-xl-qcow2 9 debian-di-installfail   never pass
 test-armhf-armhf-libvirt 14 guest-saverestorefail   never pass
 test-armhf-armhf-libvirt 12 migrate-support-checkfail   never pass
 test-armhf-armhf-libvirt-xsm 12 migrate-support-checkfail   never pass
 test-armhf-armhf-libvirt-xsm 14 guest-saverestorefail   never pass
 test-amd64-i386-libvirt  12 migrate-support-checkfail   never pass
 test-amd64-i386-libvirt-xsm  12 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt 12 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt-xsm 12 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm 10 migrate-support-check 
fail never pass
 test-amd64-i386-libvirt-vhd  11 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt-vhd 11 migrate-support-checkfail   never pass
 test-armhf-armhf-xl-rtds 13 saverestore-support-checkfail   never pass
 test-armhf-armhf-xl-rtds 12 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt-qcow2 11 migrate-support-checkfail never pass
 test-amd64-amd64-libvirt-raw 11 migrate-support-checkfail   never pass
 test-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsm 10 migrate-support-check 
fail never pass
 test-amd64-i386-libvirt-qcow2 11 migrate-support-checkfail  never pass
 test-armhf-armhf-xl-vhd   9 debian-di-installfail   never pass
 test-amd64-amd64-xl-qemut-win7-amd64 17 guest-stop fail never pass
 test-armhf-armhf-libvirt-vhd  9 debian-di-installfail   never pass
 test-amd64-i386-libvirt-raw  11 migrate-support-checkfail   never pass
 test-amd64-i386-xl-qemut-win7-amd64 17 guest-stop  fail never pass
 test-armhf-armhf-xl-arndale  12 migrate-support-checkfail   never pass
 test-armhf-armhf-xl-arndale  13 saverestore-support-checkfail   never pass

version targeted for testing:
 linux03e8f644868f147e021e8660346890e731c2e435
baseline version:
 linux45820c294fe1b1a9df495d57f40585ef2d069a39

Last test of basis59254  2015-07-09 04:20:48 Z   80 days
Failing since 59348  2015-07-10 04:24:05 Z   79 days   45 attempts
Testing same since62381  2015-09-25 22:39:10 Z2 days1 attempts


2327 people touched revisions under test,
not listing them all

jobs:
 build-amd64-xsm  pass
 build-armhf-xsm  pass
 build-i386-xsm   pass
 build-amd64  pass
 build-armhf  pass
 build-i386   pass
 build-amd64-libvirt  pass
 build-armhf-libvirt  pass
 build-i386-libvirt   pass
 build-amd64-pvopspass
 build-armhf-pvopspass
 build-i386-pvops pass
 build-amd64-rumpuserxen  

Re: [Xen-devel] Page Table Entry Modifications

[Meng Xu]

2015-09-23 4:42 GMT-04:00 Gohar Irfan :
>
> It is for a project, I'm trying to experiment with a couple of things.

Well, this is too general... Everything can be a project. People tries
to know what exact things you want to achieve so that they can figure
out if you are heading the correct direction.

Meng

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Re: [Xen-devel] [PATCH 1/5] libxc: remove allocate member from struct xc_dom_image

[Juergen Gross]

On 09/25/2015 05:39 PM, Ian Campbell wrote:

On Fri, 2015-09-11 at 13:44 +0100, Ian Jackson wrote:

Juergen Gross writes ("[PATCH 1/5] libxc: remove allocate member from
struct xc_dom_image"):

The allocate() callback in struct xc_dom_image is never set. Remove it.


Acked-by: Ian Jackson 


Applied to staging.


Really? Can't see it there.


Juergen



This will have a trivial context conflict for Roger's series, which adds a
new field to xc_dom_image below the *allocate which is being removed here.

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[Xen-devel] [xen-4.3-testing test] 62392: tolerable FAIL - PUSHED

[osstest service owner]

flight 62392 xen-4.3-testing real [real]
http://logs.test-lab.xenproject.org/osstest/logs/62392/

Failures :-/ but no regressions.

Regressions which are regarded as allowable (not blocking):
 test-amd64-amd64-xl-qemuu-win7-amd64 17 guest-stop fail like 60742

Tests which did not succeed, but are not blocking:
 test-amd64-i386-rumpuserxen-i386  1 build-check(1)   blocked  n/a
 test-amd64-amd64-rumpuserxen-amd64  1 build-check(1)   blocked n/a
 test-amd64-amd64-migrupgrade  1 build-check(1)   blocked  n/a
 test-amd64-i386-migrupgrade   1 build-check(1)   blocked  n/a
 test-amd64-amd64-xl-qemuu-ovmf-amd64  9 debian-hvm-install fail never pass
 test-amd64-i386-xl-qemuu-ovmf-amd64  9 debian-hvm-install  fail never pass
 build-amd64-rumpuserxen   6 xen-buildfail   never pass
 build-amd64-prev  5 xen-buildfail   never pass
 build-i386-prev   5 xen-buildfail   never pass
 build-i386-rumpuserxen6 xen-buildfail   never pass
 test-armhf-armhf-xl-vhd   6 xen-boot fail   never pass
 test-armhf-armhf-libvirt-qcow2  6 xen-boot fail never pass
 test-armhf-armhf-xl-qcow2 6 xen-boot fail   never pass
 test-armhf-armhf-xl-multivcpu  6 xen-boot fail  never pass
 test-armhf-armhf-libvirt-vhd  6 xen-boot fail   never pass
 test-armhf-armhf-xl-cubietruck  6 xen-boot fail never pass
 test-armhf-armhf-libvirt-raw  6 xen-boot fail   never pass
 test-armhf-armhf-xl-credit2   6 xen-boot fail   never pass
 test-amd64-i386-libvirt-qcow2 11 migrate-support-checkfail  never pass
 test-amd64-i386-xl-qemut-win7-amd64 17 guest-stop  fail never pass
 test-amd64-amd64-libvirt-raw 11 migrate-support-checkfail   never pass
 test-armhf-armhf-xl-arndale   6 xen-boot fail   never pass
 test-amd64-amd64-libvirt-vhd 11 migrate-support-checkfail   never pass
 test-amd64-i386-libvirt  12 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt 12 migrate-support-checkfail   never pass
 test-amd64-i386-libvirt-vhd  11 migrate-support-checkfail   never pass
 test-amd64-amd64-xl-qemut-win7-amd64 17 guest-stop fail never pass
 test-amd64-i386-xl-qemuu-win7-amd64 17 guest-stop  fail never pass
 test-amd64-i386-libvirt-raw  11 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt-qcow2 11 migrate-support-checkfail never pass
 test-armhf-armhf-xl   6 xen-boot fail   never pass
 test-armhf-armhf-libvirt  6 xen-boot fail   never pass
 test-armhf-armhf-xl-raw   6 xen-boot fail   never pass
 test-amd64-i386-xend-qemut-winxpsp3 21 leak-check/checkfail never pass

version targeted for testing:
 xen  998424e33db121270690586320e899a03c88b4aa
baseline version:
 xen  3bcb2c062a02e3c45d3f87478d2cbe1a134d395c

Last test of basis60742  2015-08-17 03:35:01 Z   42 days
Failing since 61140  2015-09-01 10:04:39 Z   26 days8 attempts
Testing same since62308  2015-09-23 14:17:01 Z4 days2 attempts


People who touched revisions under test:
  Anthony PERARD 
  Gerd Hoffmann 
  Ian Campbell 
  Ian Jackson 
  Matthew Daley 
  Peter Lieven 
  Stefano Stabellini 
  Wei Liu 

jobs:
 build-amd64  pass
 build-armhf  pass
 build-i386   pass
 build-amd64-libvirt  pass
 build-armhf-libvirt  pass
 build-i386-libvirt   pass
 build-amd64-prev fail
 build-i386-prev  fail
 build-amd64-pvopspass
 build-armhf-pvopspass
 build-i386-pvops pass
 build-amd64-rumpuserxen  fail
 build-i386-rumpuserxen   fail
 test-amd64-amd64-xl  pass
 test-armhf-armhf-xl  fail
 test-amd64-i386-xl   pass
 

[Xen-devel] [xen-4.4-testing test] 62389: regressions - FAIL

[osstest service owner]

flight 62389 xen-4.4-testing real [real]
http://logs.test-lab.xenproject.org/osstest/logs/62389/

Regressions :-(

Tests which did not succeed and are blocking,
including tests which could not be run:
 test-amd64-i386-xl-qemuu-win7-amd64 16 guest-localmigrate/x10 fail REGR. vs. 
60727

Regressions which are regarded as allowable (not blocking):
 test-armhf-armhf-xl-multivcpu 16 guest-start/debian.repeatfail  like 60696
 test-amd64-amd64-xl-qemuu-win7-amd64 17 guest-stop fail like 60727

Tests which did not succeed, but are not blocking:
 test-amd64-amd64-rumpuserxen-amd64  1 build-check(1)   blocked n/a
 test-amd64-i386-rumpuserxen-i386  1 build-check(1)   blocked  n/a
 test-amd64-amd64-migrupgrade  1 build-check(1)   blocked  n/a
 test-amd64-i386-migrupgrade   1 build-check(1)   blocked  n/a
 build-amd64-rumpuserxen   6 xen-buildfail   never pass
 test-armhf-armhf-libvirt-vhd  9 debian-di-installfail   never pass
 test-armhf-armhf-xl-qcow2 9 debian-di-installfail   never pass
 test-armhf-armhf-xl-raw   9 debian-di-installfail   never pass
 test-armhf-armhf-libvirt-raw  9 debian-di-installfail   never pass
 build-i386-rumpuserxen6 xen-buildfail   never pass
 build-amd64-prev  5 xen-buildfail   never pass
 build-i386-prev   5 xen-buildfail   never pass
 test-armhf-armhf-libvirt 11 guest-start  fail   never pass
 test-armhf-armhf-xl  12 migrate-support-checkfail   never pass
 test-armhf-armhf-xl  13 saverestore-support-checkfail   never pass
 test-armhf-armhf-xl-multivcpu 13 saverestore-support-checkfail  never pass
 test-armhf-armhf-xl-multivcpu 12 migrate-support-checkfail  never pass
 test-armhf-armhf-xl-arndale  12 migrate-support-checkfail   never pass
 test-armhf-armhf-xl-arndale  13 saverestore-support-checkfail   never pass
 test-armhf-armhf-xl-credit2  13 saverestore-support-checkfail   never pass
 test-armhf-armhf-xl-credit2  12 migrate-support-checkfail   never pass
 test-armhf-armhf-xl-cubietruck 12 migrate-support-checkfail never pass
 test-armhf-armhf-xl-cubietruck 13 saverestore-support-checkfail never pass
 test-amd64-amd64-libvirt 12 migrate-support-checkfail   never pass
 test-amd64-i386-libvirt  12 migrate-support-checkfail   never pass
 test-amd64-i386-libvirt-vhd  11 migrate-support-checkfail   never pass
 test-amd64-i386-xl-qemut-win7-amd64 17 guest-stop  fail never pass
 test-armhf-armhf-xl-vhd   9 debian-di-installfail   never pass
 test-armhf-armhf-libvirt-qcow2  9 debian-di-installfail never pass
 test-amd64-i386-libvirt-qcow2 11 migrate-support-checkfail  never pass
 test-amd64-amd64-libvirt-qcow2 11 migrate-support-checkfail never pass
 test-amd64-amd64-xl-qemut-win7-amd64 17 guest-stop fail never pass
 test-amd64-i386-libvirt-raw  11 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt-raw 11 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt-vhd 11 migrate-support-checkfail   never pass
 test-amd64-i386-xend-qemut-winxpsp3 21 leak-check/checkfail never pass

version targeted for testing:
 xen  4d99a76cfeba6d23504121a51e7750f230128d85
baseline version:
 xen  3646b134c1673f09c0a239de10b0da4c9265c8e8

Last test of basis60727  2015-08-16 16:15:09 Z   42 days
Failing since 60802  2015-08-20 14:41:37 Z   38 days   17 attempts
Testing same since62302  2015-09-23 11:17:24 Z4 days2 attempts


People who touched revisions under test:
  Andrew Cooper 
  Anshul Makkar 
  Anthony PERARD 
  Aravind Gopalakrishnan 
  Gerd Hoffmann 
  Ian Campbell 
  Ian Jackson 
  Jan Beulich 
  Jim Fehlig 
  Julien Grall 
  Peter Lieven 
  Roger Pau Monné 
  Stefano Stabellini 
  Wei Liu 

jobs:
 build-amd64-xend pass
 build-i386-xend  pass
 build-amd64  pass
 build-armhf  pass
 build-i386   pass
 build-amd64-libvirt  pass
 build-armhf-libvirt  pass
 build-i386-libvirt  

Re: [Xen-devel] [Qemu-devel] [PULL 0/19] xen-2015-09-08-tag

[Chen, Tiejun]

On 9/22/2015 12:03 AM, Stefano Stabellini wrote:

It is going to be in QEMU 2.5 and qemu-xen 4.7.


Thanks for your reply.

Do we have any possibility of just merging this series into qemu-xen 
4.6? We really want to support IGD passthrough on xen 4.6 if possible :)


Thanks
Tiejun



On Mon, 21 Sep 2015, Chen, Tiejun wrote:

Stefano,

I have two questions,

#1. Which qemu version is this igd stuff going into? 2.6?
#2. Is this igd stuff going into qemu-xen inside xen? Any plan to go into xen
4.6?

Thanks
Tiejun

On 9/9/2015 1:21 AM, Stefano Stabellini wrote:
> The following changes since commit 8611280505119e296757a60711a881341603fa5a:
>
>target-microblaze: Use setcond for pcmp* (2015-09-08 08:49:33 +0200)
>
> are available in the git repository at:
>
>git://xenbits.xen.org/people/sstabellini/qemu-dm.git
> tags/xen-2015-09-08-tag
>
> for you to fetch changes up to ba2250ad148997b1352aba976aac66b55410e7e4:
>
>xen/pt: Use XEN_PT_LOG properly to guard against compiler warnings.
> (2015-09-08 15:21:56 +)
>
> 
> Xen branch xen-2015-09-08
>
> 
> Don Slutz (1):
>xen-hvm: Add trace to ioreq
>
> Jan Beulich (1):
>xen/HVM: atomically access pointers in bufioreq handling
>
> Konrad Rzeszutek Wilk (7):
>xen-hvm: When using xc_domain_add_to_physmap also include errno when
> reporting
>xen/pt: Update comments with proper function name.
>xen/pt: Make xen_pt_msi_set_enable static
>xen/pt: xen_host_pci_config_read returns -errno, not -1 on failure
>xen: use errno instead of rc for xc_domain_add_to_physmap
>xen/pt/msi: Add the register value when printing logging and error
> messages
>xen/pt: Use XEN_PT_LOG properly to guard against compiler warnings.
>
> Michael S. Tsirkin (1):
>i440fx: make types configurable at run-time
>
> Tiejun Chen (9):
>pc_init1: pass parameters just with types
>piix: create host bridge to passthrough
>hw/pci-assign: split pci-assign.c
>xen, gfx passthrough: basic graphics passthrough support
>xen, gfx passthrough: retrieve VGA BIOS to work
>igd gfx passthrough: create a isa bridge
>xen, gfx passthrough: register a isa bridge
>xen, gfx passthrough: register host bridge specific to passthrough
>xen, gfx passthrough: add opregion mapping
>
>   configure |   28 +
>   hw/core/machine.c |   20 +++
>   hw/i386/Makefile.objs |1 +
>   hw/i386/kvm/pci-assign.c  |   82 ++---
>   hw/i386/pc_piix.c |  139 -
>   hw/i386/pci-assign-load-rom.c |   93 ++
>   hw/pci-host/piix.c|   91 +-
>   hw/xen/Makefile.objs  |1 +
>   hw/xen/xen-host-pci-device.c  |5 +
>   hw/xen/xen-host-pci-device.h  |1 +
>   hw/xen/xen_pt.c   |   42 ++-
>   hw/xen/xen_pt.h   |   22 +++-
>   hw/xen/xen_pt_config_init.c   |   59 -
>   hw/xen/xen_pt_graphics.c  |  272
> +
>   hw/xen/xen_pt_msi.c   |2 +-
>   include/hw/boards.h   |1 +
>   include/hw/i386/pc.h  |9 +-
>   include/hw/pci/pci-assign.h   |   27 
>   include/hw/xen/xen_common.h   |   34 +-
>   qemu-options.hx   |3 +
>   trace-events  |7 ++
>   vl.c  |   10 ++
>   xen-hvm.c |   55 +++--
>   23 files changed, 891 insertions(+), 113 deletions(-)
>   create mode 100644 hw/i386/pci-assign-load-rom.c
>   create mode 100644 hw/xen/xen_pt_graphics.c
>   create mode 100644 include/hw/pci/pci-assign.h
>
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Re: [Xen-devel] [PATCH 5/5] xen: clean up VPF flags macros

[Juergen Gross]

On 09/25/2015 05:42 PM, Jan Beulich wrote:

On 25.09.15 at 13:54,  wrote:

Per-VCPU pause flags in sched.h are defined as bit positions and as
values derived from the bit defines. There is only one user of a value
which can be easily converted to use a bit number as well.


I'm not convinced:


--- a/xen/common/domctl.c
+++ b/xen/common/domctl.c
@@ -172,7 +172,7 @@ void getdomaininfo(struct domain *d, struct 
xen_domctl_getdomaininfo *info)
  info->max_vcpu_id = v->vcpu_id;
  if ( !test_bit(_VPF_down, >pause_flags) )
  {
-if ( !(v->pause_flags & VPF_blocked) )
+if ( !test_bit(_VPF_blocked, >pause_flags) )


test_bit() is quite a bit more complex an operation than a simple &,
and with (on x86) even constant_test_bit() involving a cast to
a pointer to volatile I'm afraid we can't even hope that compilers
would produce identical code for both in cases like this one (as that
casts limits freedom of the compiler). IOW I'd rather see other
test_bit(_VPF_...) uses converted the inverse way (which as a nice
but minor side effect would yield slightly smaller source code).


What about introducing __test_bit() being a variant which can be
reordered by omitting the volatile modifier? I think this would have
the same effect. And we could still get rid of many double definitions
of the same bit. Even if the mask definition of a bit is not error prone
by relying on the definition of the bit position, it makes it harder to
find all users of this bit.


Juergen

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Re: [Xen-devel] [Patch RFC 00/13] VT-d Asynchronous Device-TLB Flush for ATS Device

[Xu, Quan]

Tim, thanks for your review.

>>> Thursday, September 24, 2015 12:27 AM, Tim Deegan wrote:
> Hi,
> 
> At 14:09 + on 21 Sep (1442844587), Xu, Quan wrote:
> > George / Tim,
> > Could you help me review these memory patches? Thanks!
> 
> The interrupt-mapping and chipset control parts of this are outside my
> understanding. :)  And I'm not an x86/mm maintainer any more, but I'll have a
> look:
> 

I've heard so much about you from my teammates. :):)


> 7/13: I'm not convinced that making the vcpu spin calling
> sched_yield() is a very good plan.  Better to explicitly pause the domain if 
> you
> need its vcpus not to run.  But first -- why does IOMMU flushing mean that
> vcpus can't be run?
> 

Ensure that the required Device-TLB flushes are applied before returning to 
guest mode via hypercall completion.
the domain can also DMA this freed pages.
For example, Call do_memory_op HYPERCALL to free a pageX (gfn --- mfn) from 
domain, and assume that there is
a mapping(gfn --- mfn) in Device-TLB, once the vcpu has returned to guest mode, 
then the domain can still DMA this freed pageX.
Domain kernel cannot use this being freed page, otherwise this is a domain 
kernel bug.

In fact, any time you want to reschedule, you need to raise SCHEDULE_SOFTIRQ, 
which is then checked and serviced
in do_softirq().
It can also pause the domain and unpause the domain in QI interrupt handler, or 
block the vCPU and unblock all of the 
domain's vCPU in QI interrupt handler.  It is the performance consideration 
while using sched_yield().



> 8/13: This doesn't seem like it's enough make this safe. :(  Yes, you can't 
> allocate
> a page to another VM while there are IOTLB entries pointing to it, but you 
> also
> can't use it for other things inside the same domain!
> 
> It might be enough, if you can argue that e.g. the IOMMU tables only ever have
> mappings of pages owned by the domain, and that any other feature that might
> rely on the daomin's memory being made read-only (e.g. sharing) is explicily
> disallowed, but I'd want to see those things mechanically enforced.
> 



As mentioned above,  Device-TLB flushes are applied before returning to guest 
mode via hypercall completion.
If the hypercall is not completed, the freed page will not be released back to 
xen. Domain kernel cannot use this being freed page, otherwise this is a domain 
kernel bug.
So I think it is enough.   :):)




> I think the safest answer is to make the IOMMU table take typed refcounts to
> anything it points to, and only drop those refcounts when the flush completes,
> but I can imaging that becoming complex.
> 

Yes, i also think so.
I have a similar design, taking typed refcount and increasing the page refcount 
(as PGT_pinned / PGC_allocated), but i did it only in page freed invoker flow.
I dropped this design, as i should introduce anther flag to aware that the 
domain is assigned a ATS device(A ugly design). 
I didn't make the IOMMU table to take typed refcount to anything it points to. 
This is really complex.

> You may also need to consider grant-mapped memory - you need to make sure
> the grant isn't released until after the flush completes.
> 
 I can introduce a new grant type for this case (such as GNTMAP_iommu_dma)..
For ending foreign access, it should _only_ be used when the remote domain has 
unmapped the frame. 
gnttab_query_foreign_access( gref ) will indicate the state of any mapping.

> 12/13: Ah, I see you are looking at grant table stuff, at least for the 
> transfer path. :)
> Still the mapping path needs to be looked at.
> 

Yes, I think you can do it. :):)


> Cheers,
> 
> Tim.


Tim, thanks again. I really appreciate your review.


Quan

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[Xen-devel] [linux-3.18 test] 62365: regressions - FAIL

[osstest service owner]

flight 62365 linux-3.18 real [real]
http://logs.test-lab.xenproject.org/osstest/logs/62365/

Regressions :-(

Tests which did not succeed and are blocking,
including tests which could not be run:
 test-amd64-amd64-xl-pvh-intel 11 guest-start  fail REGR. vs. 58581

Regressions which are regarded as allowable (not blocking):
 test-armhf-armhf-libvirt  6 xen-boot  fail REGR. vs. 58581
 test-armhf-armhf-xl-rtds 15 guest-start.2   fail baseline untested
 test-amd64-amd64-xl-qemut-stubdom-debianhvm-amd64-xsm 13 guest-localmigrate 
fail baseline untested
 test-amd64-i386-xl-qemut-stubdom-debianhvm-amd64-xsm 9 debian-hvm-install fail 
baseline untested
 test-armhf-armhf-libvirt-xsm  6 xen-boot fail   like 58581
 test-armhf-armhf-xl-multivcpu  6 xen-boot fail  like 58581
 test-armhf-armhf-xl   6 xen-boot fail   like 58581
 test-armhf-armhf-xl-xsm   6 xen-boot fail   like 58581
 test-armhf-armhf-xl-credit2   6 xen-boot fail   like 58581
 test-amd64-i386-xl-qemuu-win7-amd64 17 guest-stop  fail like 58581
 test-amd64-amd64-xl-qemut-win7-amd64 17 guest-stop fail like 58581
 test-amd64-amd64-xl-qemuu-win7-amd64 17 guest-stop fail like 58581

Tests which did not succeed, but are not blocking:
 test-amd64-amd64-xl-pvh-amd  11 guest-start  fail   never pass
 test-armhf-armhf-xl-qcow2 9 debian-di-installfail   never pass
 test-armhf-armhf-xl-vhd   9 debian-di-installfail   never pass
 test-armhf-armhf-xl-raw   9 debian-di-installfail   never pass
 test-armhf-armhf-xl-cubietruck  6 xen-boot fail never pass
 test-armhf-armhf-libvirt-vhd  9 debian-di-installfail   never pass
 test-amd64-i386-libvirt-xsm  12 migrate-support-checkfail   never pass
 test-armhf-armhf-xl-arndale  12 migrate-support-checkfail   never pass
 test-armhf-armhf-xl-arndale  13 saverestore-support-checkfail   never pass
 test-armhf-armhf-xl-rtds 13 saverestore-support-checkfail   never pass
 test-armhf-armhf-xl-rtds 12 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt-qcow2 11 migrate-support-checkfail never pass
 test-amd64-amd64-libvirt-xsm 12 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt 12 migrate-support-checkfail   never pass
 test-amd64-i386-libvirt-qcow2 11 migrate-support-checkfail  never pass
 test-amd64-amd64-libvirt-raw 11 migrate-support-checkfail   never pass
 test-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsm 10 migrate-support-check 
fail never pass
 test-amd64-i386-libvirt-raw  11 migrate-support-checkfail   never pass
 test-amd64-i386-libvirt  12 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt-vhd 11 migrate-support-checkfail   never pass
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm 10 migrate-support-check 
fail never pass
 test-armhf-armhf-libvirt-qcow2  9 debian-di-installfail never pass
 test-armhf-armhf-libvirt-raw  9 debian-di-installfail   never pass
 test-amd64-i386-libvirt-vhd  11 migrate-support-checkfail   never pass
 test-amd64-i386-xl-qemut-win7-amd64 17 guest-stop  fail never pass

version targeted for testing:
 linuxfcd9bfdb9d884f1aab89124dee894e7d821bb5dc
baseline version:
 linuxd048c068d00da7d4cfa5ea7651933b99026958cf

Last test of basis58581  2015-06-15 09:42:22 Z  104 days
Failing since 58976  2015-06-29 19:43:23 Z   89 days   63 attempts
Testing same since61524  2015-09-07 11:48:03 Z   20 days9 attempts


462 people touched revisions under test,
not listing them all

jobs:
 build-amd64-xsm  pass
 build-armhf-xsm  pass
 build-i386-xsm   pass
 build-amd64  pass
 build-armhf  pass
 build-i386   pass
 build-amd64-libvirt  pass
 build-armhf-libvirt  pass
 build-i386-libvirt   pass
 build-amd64-pvopspass
 build-armhf-pvopspass
 build-i386-pvops pass
 build-amd64-rumpuserxen  pass
 build-i386-rumpuserxen   pass
 test-amd64-amd64-xl  pass

Re: [Xen-devel] Page Table Entry Modifications

[Gohar Irfan]

This might not seem useful or anything, but this is a part of an experiment
so I will describe what I'm trying to do:

Divide the memory into two equal halves and call them A and B.
Let's say region A has 10 pages, from page numbers 1 to 10. Region B has 10
pages from page numbers 11 to 20 (hypothetical, of course.)
When a page from region B (page number 11 to 20) is being accessed, say
page 15, then swap the contents of page 15 with the contents of one of the
pages from region A, say page 5.
To achieve this, I need some help. In the default scenario, page 15 points
to frame X and page 5 points to frame Y. I want to make page 15 point to
frame Y and page 5 to frame X of the memory.

I want to run this experiment and find the degradation in performance for a
project.
If some portion of this seems vague, I can explain. But I urgently need
help on how to achieve this.

My understanding is that it can be done in the page fault handler of shadow
page tables. I have mentioned the relevant file and function earlier in
this thread.

Thanks a lot!

On Sun, Sep 27, 2015 at 7:57 PM Meng Xu  wrote:

> 2015-09-23 4:42 GMT-04:00 Gohar Irfan :
> >
> > It is for a project, I'm trying to experiment with a couple of things.
>
> Well, this is too general... Everything can be a project. People tries
> to know what exact things you want to achieve so that they can figure
> out if you are heading the correct direction.
>
> Meng
>
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[Xen-devel] [libvirt test] 62376: regressions - FAIL

[osstest service owner]

flight 62376 libvirt real [real]
http://logs.test-lab.xenproject.org/osstest/logs/62376/

Regressions :-(

Tests which did not succeed and are blocking,
including tests which could not be run:
 build-amd64-libvirt   5 libvirt-build fail REGR. vs. 62281
 build-i386-libvirt5 libvirt-build fail REGR. vs. 62281
 build-armhf-libvirt   5 libvirt-build fail REGR. vs. 62281

Tests which did not succeed, but are not blocking:
 test-armhf-armhf-libvirt-vhd  1 build-check(1)   blocked  n/a
 test-armhf-armhf-libvirt-raw  1 build-check(1)   blocked  n/a
 test-armhf-armhf-libvirt-qcow2  1 build-check(1)   blocked  n/a
 test-armhf-armhf-libvirt-xsm  1 build-check(1)   blocked  n/a
 test-amd64-i386-libvirt   1 build-check(1)   blocked  n/a
 test-amd64-i386-libvirt-xsm   1 build-check(1)   blocked  n/a
 test-amd64-amd64-libvirt-xsm  1 build-check(1)   blocked  n/a
 test-armhf-armhf-libvirt  1 build-check(1)   blocked  n/a
 test-amd64-i386-libvirt-pair  1 build-check(1)   blocked  n/a
 test-amd64-amd64-libvirt-pair  1 build-check(1)   blocked  n/a
 test-amd64-i386-libvirt-qcow2  1 build-check(1)   blocked  n/a
 test-amd64-i386-libvirt-raw   1 build-check(1)   blocked  n/a
 test-amd64-amd64-libvirt-raw  1 build-check(1)   blocked  n/a
 test-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsm 1 build-check(1) blocked n/a
 test-amd64-amd64-libvirt-qcow2  1 build-check(1)   blocked  n/a
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm 1 build-check(1) blocked n/a
 test-amd64-amd64-libvirt  1 build-check(1)   blocked  n/a
 test-amd64-i386-libvirt-vhd   1 build-check(1)   blocked  n/a
 test-amd64-amd64-libvirt-vhd  1 build-check(1)   blocked  n/a

version targeted for testing:
 libvirt  7383b8cc068f0e9fd77ca25c6737cd90dbf1c967
baseline version:
 libvirt  086f37e97aabb0b3c82d8cd16559a29aa92d59d0

Last test of basis62281  2015-09-22 15:38:20 Z4 days
Testing same since62376  2015-09-25 21:29:31 Z1 days1 attempts


People who touched revisions under test:
  Andrea Bolognani 
  Cole Robinson 
  Erik Skultety 
  Guido Günther 
  Jiri Denemark 
  John Ferlan 
  Luyao Huang 
  Martin Kletzander 
  Michal Privoznik 
  Peter Krempa 
  Shivangi Dhir 

jobs:
 build-amd64-xsm  pass
 build-armhf-xsm  pass
 build-i386-xsm   pass
 build-amd64  pass
 build-armhf  pass
 build-i386   pass
 build-amd64-libvirt  fail
 build-armhf-libvirt  fail
 build-i386-libvirt   fail
 build-amd64-pvopspass
 build-armhf-pvopspass
 build-i386-pvops pass
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm   blocked
 test-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsmblocked
 test-amd64-amd64-libvirt-xsm blocked
 test-armhf-armhf-libvirt-xsm blocked
 test-amd64-i386-libvirt-xsm  blocked
 test-amd64-amd64-libvirt blocked
 test-armhf-armhf-libvirt blocked
 test-amd64-i386-libvirt  blocked
 test-amd64-amd64-libvirt-pairblocked
 test-amd64-i386-libvirt-pair blocked
 test-amd64-amd64-libvirt-qcow2   blocked
 test-armhf-armhf-libvirt-qcow2   blocked
 test-amd64-i386-libvirt-qcow2blocked
 test-amd64-amd64-libvirt-raw blocked
 test-armhf-armhf-libvirt-raw blocked
 test-amd64-i386-libvirt-raw  blocked
 test-amd64-amd64-libvirt-vhd blocked
 test-armhf-armhf-libvirt-vhd blocked
 test-amd64-i386-libvirt-vhd  blocked



sg-report-flight on 

Re: [Xen-devel] Page Table Entry Modifications

[Gohar Irfan]

Could someone please help me with this? It's really important and urgent.

Thanks a lot!

On Wed, Sep 23, 2015 at 1:42 PM Gohar Irfan  wrote:

> It is for a project, I'm trying to experiment with a couple of things.
>
> Could you please guide me how this could be achieved? Some relevant chunks
> of code, perhaps?
>
> Thanks!
>
> On Wed, Sep 23, 2015 at 1:35 PM Andrew Cooper 
> wrote:
>
>> On 22/09/15 20:35, Gohar Irfan wrote:
>>
>> Hi All,
>>
>> I want to know if, in the case of HVM (shadow page tables), we can change
>> the machine frame number pointed to by a page table entry?
>>
>>
>> Yes - Xen is able to change the mfn in a pte.
>>
>>
>> An overly simplified example would be: let's say I have page number 10
>> that is pointing to machine frame number 10, but I would like it to point
>> to machine frame number 1?
>>
>>
>> Yes - that is in theory possible.
>>
>>
>> Can this be achieved inside the "sh_page_fault" function inside
>> "xen/arch/x86/mm/shadow/multi.c" as this seems like a relevant place for
>> this modification to me.
>>
>>
>> What are you trying to achieve?  Modifications such as what you request
>> are possible, but you are exceedingly likely to end up with memory
>> corruption as a result.
>>
>>
>> ~Andrew
>>
>
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[Xen-devel] [ovmf test] 62359: all pass - PUSHED

[osstest service owner]

flight 62359 ovmf real [real]
http://logs.test-lab.xenproject.org/osstest/logs/62359/

Perfect :-)
All tests in this flight passed
version targeted for testing:
 ovmf 28f27af6f007c3794fcc9d098ef91713160f4e5b
baseline version:
 ovmf 8cfd008ef8da26d97314816e0635691955d475d5

Last test of basis62244  2015-09-21 14:21:44 Z5 days
Failing since 62306  2015-09-23 13:51:35 Z3 days2 attempts
Testing same since62359  2015-09-25 15:38:04 Z1 days1 attempts


People who touched revisions under test:
  Ard Biesheuvel 
  Feng Tian 
  Gabriel Somlo 
  Heyi Guo 
  Jaben Carsey 
  Jeff Fan 
  Jiaxin Wu 
  Laszlo Ersek 
  Reza Jelveh 
  Ruiyu Ni 
  Tapan  Shah 
  Ye Ting 

jobs:
 build-amd64-xsm  pass
 build-i386-xsm   pass
 build-amd64  pass
 build-i386   pass
 build-amd64-libvirt  pass
 build-i386-libvirt   pass
 build-amd64-pvopspass
 build-i386-pvops pass
 test-amd64-amd64-xl-qemuu-ovmf-amd64 pass
 test-amd64-i386-xl-qemuu-ovmf-amd64  pass



sg-report-flight on osstest.test-lab.xenproject.org
logs: /home/logs/logs
images: /home/logs/images

Logs, config files, etc. are available at
http://logs.test-lab.xenproject.org/osstest/logs

Explanation of these reports, and of osstest in general, is at
http://xenbits.xen.org/gitweb/?p=osstest.git;a=blob;f=README.email;hb=master
http://xenbits.xen.org/gitweb/?p=osstest.git;a=blob;f=README;hb=master

Test harness code can be found at
http://xenbits.xen.org/gitweb?p=osstest.git;a=summary


Pushing revision :

+ branch=ovmf
+ revision=28f27af6f007c3794fcc9d098ef91713160f4e5b
+ . cri-lock-repos
++ . cri-common
+++ . cri-getconfig
+++ umask 002
+++ getrepos
 getconfig Repos
 perl -e '
use Osstest;
readglobalconfig();
print $c{"Repos"} or die $!;
'
+++ local repos=/home/osstest/repos
+++ '[' -z /home/osstest/repos ']'
+++ '[' '!' -d /home/osstest/repos ']'
+++ echo /home/osstest/repos
++ repos=/home/osstest/repos
++ repos_lock=/home/osstest/repos/lock
++ '[' x '!=' x/home/osstest/repos/lock ']'
++ OSSTEST_REPOS_LOCK_LOCKED=/home/osstest/repos/lock
++ exec with-lock-ex -w /home/osstest/repos/lock ./ap-push ovmf 
28f27af6f007c3794fcc9d098ef91713160f4e5b
+ branch=ovmf
+ revision=28f27af6f007c3794fcc9d098ef91713160f4e5b
+ . cri-lock-repos
++ . cri-common
+++ . cri-getconfig
+++ umask 002
+++ getrepos
 getconfig Repos
 perl -e '
use Osstest;
readglobalconfig();
print $c{"Repos"} or die $!;
'
+++ local repos=/home/osstest/repos
+++ '[' -z /home/osstest/repos ']'
+++ '[' '!' -d /home/osstest/repos ']'
+++ echo /home/osstest/repos
++ repos=/home/osstest/repos
++ repos_lock=/home/osstest/repos/lock
++ '[' x/home/osstest/repos/lock '!=' x/home/osstest/repos/lock ']'
+ . cri-common
++ . cri-getconfig
++ umask 002
+ select_xenbranch
+ case "$branch" in
+ tree=ovmf
+ xenbranch=xen-unstable
+ '[' xovmf = xlinux ']'
+ linuxbranch=
+ '[' x = x ']'
+ qemuubranch=qemu-upstream-unstable
+ select_prevxenbranch
++ ./cri-getprevxenbranch xen-unstable
+ prevxenbranch=xen-4.6-testing
+ : tested/2.6.39.x
+ . ap-common
++ xenbranch_forqemu=xen-unstable
++ : osst...@xenbits.xen.org
+++ getconfig OsstestUpstream
+++ perl -e '
use Osstest;
readglobalconfig();
print $c{"OsstestUpstream"} or die $!;
'
++ :
++ : git://xenbits.xen.org/xen.git
++ : osst...@xenbits.xen.org:/home/xen/git/xen.git
++ : git://xenbits.xen.org/staging/qemu-xen-unstable.git
++ : git://git.kernel.org
++ : git://git.kernel.org/pub/scm/linux/kernel/git
++ : git
++ : git://xenbits.xen.org/libvirt.git
++ : osst...@xenbits.xen.org:/home/xen/git/libvirt.git
++ : git://xenbits.xen.org/libvirt.git
++ : git://xenbits.xen.org/rumpuser-xen.git
++ : git
++ : git://xenbits.xen.org/rumpuser-xen.git
++ : osst...@xenbits.xen.org:/home/xen/git/rumpuser-xen.git
+++ besteffort_repo https://github.com/rumpkernel/rumpkernel-netbsd-src
+++ local repo=https://github.com/rumpkernel/rumpkernel-netbsd-src
+++ cached_repo https://github.com/rumpkernel/rumpkernel-netbsd-src 
'[fetch=try]'
+++ local