Commit Graph

1112 Commits

Author SHA1 Message Date
Peter Maydell
acab923dce qemu-block-drivers: Convert to rST
The qemu-block-drivers documentation is currently in
docs/qemu-block-drivers.texi in Texinfo format, which we present
to the user as:
 * a qemu-block-drivers manpage
 * a section of the main qemu-doc HTML documentation

Convert the documentation to rST format, and present it to
the user as:
 * a qemu-block-drivers manpage
 * part of the system/ Sphinx manual

This follows the same pattern we've done for qemu-ga and qemu-nbd.

We have to drop a cross-reference from the documentation of the
-cdrom option back to the qemu-block-drivers documentation, since
they're no longer within the same texinfo document.

As noted in a comment, the manpage output is slightly compromised
due to limitations in Sphinx. In an ideal world, the HTML output
would have the various headings like 'Disk image file formats'
as top-level section headings (which then appear in the overall
system manual's table-of-contents), and it would not have the
section headings which make sense only for the manpage like
'synopsis', 'description', and 'see also'. Unfortunately, the
mechanism Sphinx provides for restricting pieces of documentation
is limited to the point of being flawed: the 'only::' directive
is implemented as a filter that is applied at a very late stage
in the document processing pipeline, rather than as an early
equivalent of an #ifdef. This means that Sphinx's process of
identifying which section heading markup styles are which levels
of heading gets confused if the 'only::' directive contains
section headings which would affect the heading-level of a
later heading. I have opted to prioritise making the HTML format
look better, with the compromise being that in the manpage
the 'Disk image file formats' &c headings are top-level headings
rather than being sub-headings under the traditional 'Description'
top-level section title.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20200116141511.16849-4-peter.maydell@linaro.org
2020-01-23 15:34:04 +00:00
Peter Maydell
0928523a12 docs: Create stub system manual
We want a user-facing manual which contains system emulation
documentation. Create an empty one which we can populate.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20200116141511.16849-3-peter.maydell@linaro.org
2020-01-23 15:22:40 +00:00
Peter Maydell
87c0868f46 qemu-nbd: Convert invocation documentation to rST
The qemu-nbd documentation is currently in qemu-nbd.texi in Texinfo
format, which we present to the user as:
 * a qemu-nbd manpage
 * a section of the main qemu-doc HTML documentation

Convert the documentation to rST format, and present it to the user as:
 * a qemu-nbd manpage
 * part of the interop/ Sphinx manual

This follows the same pattern as commit 27a296fce9 did for the
qemu-ga manpage.

All the content of the old manpage is retained, except that I have
dropped the "This is free software; see the source for copying
conditions.  There is NO warranty..." text that was in the old AUTHOR
section; Sphinx's manpage builder doesn't expect that much text in
the AUTHOR section, and since none of our other manpages have it it
seems easiest to delete it rather than try to figure out where else
in the manpage to put it.

The only other textual change is that I have had to give the
--nocache option its own description ("Equivalent to --cache=none")
because Sphinx doesn't have an equivalent of using item/itemx
to share a description between two options.

Some minor aspects of the formatting have changed, to suit what is
easiest for Sphinx to output. (The most notable is that Sphinx
option section option syntax doesn't support '--option foo=bar'
with bar underlined rather than bold, so we have to switch to
'--option foo=BAR' instead.)

The contents of qemu-option-trace.texi are now duplicated in
docs/interop/qemu-option-trace.rst.inc, until such time as we complete
the conversion of the other files which use it; since it has had only
3 changes in 3 years, this shouldn't be too awkward a burden.
(We use .rst.inc because if this file fragment has a .rst extension
then Sphinx complains about not seeing it in a toctree.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20200116141511.16849-2-peter.maydell@linaro.org
2020-01-23 15:22:39 +00:00
Igor Mammedov
3a61c8db9d acpi: cpuhp: add CPHP_GET_CPU_ID_CMD command
Firmware can enumerate present at boot APs by broadcasting wakeup IPI,
so that woken up secondary CPUs could register them-selves.
However in CPU hotplug case, it would need to know architecture
specific CPU IDs for possible and hotplugged CPUs so it could
prepare environment for and wake hotplugged AP.

Reuse and extend existing CPU hotplug interface to return architecture
specific ID for currently selected CPU in 2 registers:
 - lower 32 bits in ACPI_CPU_CMD_DATA_OFFSET_RW
 - upper 32 bits in ACPI_CPU_CMD_DATA2_OFFSET_R

On x86, firmware will use CPHP_GET_CPU_ID_CMD for fetching the APIC ID
when handling hotplug SMI.

Later, CPHP_GET_CPU_ID_CMD will be used on ARM to retrieve MPIDR,
which serves the similar to APIC ID purpose.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1575896942-331151-10-git-send-email-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2020-01-22 00:23:07 -05:00
Igor Mammedov
ae340aa3d2 acpi: cpuhp: spec: add typical usecases
Document work-flows for
  * enabling/detecting modern CPU hotplug interface
  * finding a CPU with pending 'insert/remove' event
  * enumerating present and possible CPUs

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1575896942-331151-9-git-send-email-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2020-01-22 00:23:07 -05:00
Igor Mammedov
e6d0c3ce68 acpi: cpuhp: introduce 'Command data 2' field
No functional change in practice, patch only aims to properly
document (in spec and code) intended usage of the reserved space.

The new field is to be used for 2 purposes:
  - detection of modern CPU hotplug interface using
    CPHP_GET_NEXT_CPU_WITH_EVENT_CMD command.
    procedure will be described in follow up patch:
      "acpi: cpuhp: spec: add typical usecases"
  - for returning upper 32 bits of architecture specific CPU ID,
    for new CPHP_GET_CPU_ID_CMD command added by follow up patch:
      "acpi: cpuhp: add CPHP_GET_CPU_ID_CMD command"

Change is backward compatible with 4.2 and older machines, as field was
unconditionally reserved and always returned 0x0 if modern CPU hotplug
interface was enabled.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1575896942-331151-8-git-send-email-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2020-01-22 00:23:07 -05:00
Igor Mammedov
5b8e5363fa acpi: cpuhp: spec: clarify store into 'Command data' when 'Command field' == 0
Write section of 'Command data' register should describe what happens
when it's written into. Correct description in case the last stored
'Command field' value is equal to 0, to reflect that currently it's not
supported.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <1575896942-331151-7-git-send-email-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-01-22 00:23:07 -05:00
Igor Mammedov
1c1d43bf01 acpi: cpuhp: spec: fix 'Command data' description
Correct returned value description in case 'Command field' == 0x0,
it's not PXM but CPU selector value with pending event

In addition describe 0 blanket value in case of not supported
'Command field' value.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <1575896942-331151-6-git-send-email-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-01-22 00:23:07 -05:00
Igor Mammedov
1d7a52835d acpi: cpuhp: spec: clarify 'CPU selector' register usage and endianness
* Move reserved registers to the top of the section, so reader would be
  aware of effects when reading registers description.
* State registers endianness explicitly at the beginning of the section
* Describe registers behavior in case of 'CPU selector' register contains
  value that doesn't point to a possible CPU.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <1575896942-331151-5-git-send-email-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-01-22 00:23:07 -05:00
Peter Maydell
cbf01142b2 Add cpu_{ld,st}*_mmuidx_ra
Remove MMU_MODE*_SUFFIX
 Move tcg headers under include/
 -----BEGIN PGP SIGNATURE-----
 
 iQFRBAABCgA7FiEEekgeeIaLTbaoWgXAZN846K9+IV8FAl4fvikdHHJpY2hhcmQu
 aGVuZGVyc29uQGxpbmFyby5vcmcACgkQZN846K9+IV+R3gf8CITIUCoUyvAJFDp/
 5aSaArVP/3IlO37BSDYL1qu4uwJYmlGpdjNNZ5MaqhnQ9FbnaZxtIqDPIYOcUeOd
 MYFoD7G/uTfQqGNRtrDN88QEN0SVJVPis5/IGy9SpHSgopHwdbEeu8EmBb54Mwu6
 drWsUnLCYqDKg8bqn3bliIhh+T3vL+KROPJB2rxhnOUm4YelRvDLvCFFDHaNYf9f
 fYSAyjxqdjES8qX106SKU96zgaWOQy38GChKrYKgg9LECbZ/3SVUYHwQMsusMwg5
 DZZ1OlLPVdUtbkUt6nB2X5pFrNQf3oDUDeyFAH7D6C6nki42EqjEou4n5McFlZPF
 LS93ag==
 =NaTS
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20200115' into staging

Add cpu_{ld,st}*_mmuidx_ra
Remove MMU_MODE*_SUFFIX
Move tcg headers under include/

# gpg: Signature made Thu 16 Jan 2020 01:36:41 GMT
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth/tags/pull-tcg-20200115: (34 commits)
  MAINTAINERS: Replace Claudio Fontana for tcg/aarch64
  configure: Remove tcg/ from the preprocessor include search list
  tcg: Move TCG headers to include/tcg/
  tcg: Search includes in the parent source directory
  tcg: Search includes from the project root source directory
  cputlb: Expand cpu_ldst_template.h in cputlb.c
  cputlb: Remove support for MMU_MODE*_SUFFIX
  target/ppc: Use cpu_*_mmuidx_ra instead of MMU_MODE*_SUFFIX
  target/s390x: Use cpu_*_mmuidx_ra instead of MMU_MODE*_SUFFIX
  target/mips: Use cpu_*_mmuidx_ra instead of MMU_MODE*_SUFFIX
  target/m68k: Use cpu_*_mmuidx_ra instead of MMU_MODE{0,1}_SUFFIX
  target/xtensa: Remove MMU_MODE{0,1,2,3}_SUFFIX
  target/unicore32: Remove MMU_MODE{0,1}_SUFFIX
  target/sh4: Remove MMU_MODE{0,1}_SUFFIX
  target/microblaze: Remove MMU_MODE{0,1,2}_SUFFIX
  target/i386: Remove MMU_MODE{0,1,2}_SUFFIX
  target/cris: Remove MMU_MODE{0,1}_SUFFIX
  target/alpha: Remove MMU_MODE{0,1}_SUFFIX
  target/nios2: Remove MMU_MODE{0,1}_SUFFIX
  cputlb: Expand cpu_ldst_useronly_template.h in user-exec.c
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-17 12:13:17 +00:00
Richard Henderson
f4e1bae259 cputlb: Provide cpu_(ld,st}*_mmuidx_ra for user-only
This finishes the new interface began with the previous patch.
Document the interface and deprecate MMU_MODE<N>_SUFFIX.

Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-01-15 15:13:10 -10:00
Richard Henderson
fc4120a378 cputlb: Rename helper_ret_ld*_cmmu to cpu_ld*_code
There are no uses of the *_cmmu names other than the bare wrapping
within the *_code inlines.  Therefore rename the functions so we
can drop the inlines.

Use abi_ptr instead of target_ulong in preparation for user-only;
the two types are identical for softmmu.

Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-01-15 15:13:10 -10:00
Peter Maydell
e021e6fe52 QAPI patches for 2020-01-14
-----BEGIN PGP SIGNATURE-----
 
 iQJGBAABCAAwFiEENUvIs9frKmtoZ05fOHC0AOuRhlMFAl4dlLoSHGFybWJydUBy
 ZWRoYXQuY29tAAoJEDhwtADrkYZTKGoQAKXNP/+ezGJvczU/RVtBhSQXRXQyF+zh
 VFznrB8gL4+MkD20bZv1jhSeNHJgQn4Frarq7IfglNy8NSLOwkVWleY9QFZV+t7U
 puXbO4AfIoMyvKYDEweDaHhAkQ1lnd+lDkN8HPm83EdM9ot+sGmppwnONtJm2xoC
 2/+Ff+A7lmr9mU/+KVMgtnhdu8l/NdSJ4dk3gp0zPqcRtM9PanwBjA4ve+4asBxg
 Hec5lQlqkj09ngNtFMXTQdYvpWXXcKyBwsoJymFh6kSYA7ZACvchfvqq0SS1JQfV
 4yCBfro64ZwUeWuwD5Blzb5iwrrVURRm2ecLq9uy62xmEqX72OWpl1h2+Q2HBZoZ
 rSbo85PJ2DTGNK+xRyRF6N7E1RGlVD4tIcE0nH/+JfW1Fkf7wCGe7AR7ywXScDav
 nW9UtpwPMLYHz/jO0khYAlpfY+SGtO7JFokv7R+9Zpi9IFUziyY9Y74/EIUDE8QV
 vk/GFbGPDUg1+aZgI3Q2/iPmgXDYWZIoBNhmebI8jwNktIyCCGWL07/I6jOX8K+/
 f1njp4Bma8sFm1xoSwgJqams1SsuXdKj33V0k1Yw88RvprXBsRRMHBVtlz443/gh
 LtKGgqJMCU+uuDIJBZ7t1r/iNY+2bgsrgPVNf9AMtPoY+A0dP4FiUuGKEY3fkCAy
 h8WF8U/rkJ4/
 =iRJu
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2020-01-14' into staging

QAPI patches for 2020-01-14

# gpg: Signature made Tue 14 Jan 2020 10:15:22 GMT
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-qapi-2020-01-14:
  qapi: Simplify QAPISchemaModularCVisitor
  qapi: Fix code generation for empty modules
  qapi: Proper intermediate representation for modules
  qapi: Generate command registration stuff into separate files
  tests/Makefile.include: Fix missing test-qapi-emit-events.[ch]
  qapi: Tweak "command returns a nice type" check for clarity

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-14 16:42:27 +00:00
Markus Armbruster
00ca24ff9e qapi: Generate command registration stuff into separate files
Having to include qapi-commands.h just for qmp_init_marshal() is
suboptimal.  Generate it into separate files.  This lets
monitor/misc.c, qga/main.c, and the generated qapi-commands-FOO.h
include less.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20191120182551.23795-4-armbru@redhat.com>
[Typos in docs/devel/qapi-code-gen.txt fixed]
Reviewed-by: Eric Blake <eblake@redhat.com>
2020-01-14 11:01:58 +01:00
Peter Maydell
981c9b88e6 * Move qtests into a separate directory
* Build index.html for docs
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCAAvFiEEJ7iIR+7gJQEY8+q5LtnXdP5wLbUFAl4bAUURHHRodXRoQHJl
 ZGhhdC5jb20ACgkQLtnXdP5wLbUSQQ/+MU9vOoDrctISyxN8YQ1a0YdYKmuXKHyT
 YI/z/CV3xFnTw3sIHzXWXg/MzwgpTUXOZn5TG0P46qeNBPC416FrKoi+4J91VWud
 80si37fwmXiEMB67yK4KqkZzEeffoei4EWC8fWHU//KEaEYiLxNLjvPGSV5+Gjw7
 6gh4QcGecRectBCb2BqPwr8Qp7B5k+tPCpWsWff+eFZSbHYe6+g00x6wOTOLTd1h
 MccEoyq1LrZshSO6iThISgIUpLyMyCy9KMJXIb7mztxCGLDffLVnJFhmH5Yn6I6e
 7SVHoa7cKjHMN1DC9p+5+cjqo5VZg7iPy346zPEPitdUw1e0tnYNyqZDh5d8xoUR
 WlGpc4USuHbysznbpkaFaMABkKyXPddVQUUtIgHcfav2UVAUH2KmZ38POnY+W9wL
 S1Yv9yhUFT0aPvj8QsSRBaQXfcn73CFlJV7XsOd7opFH/M5kWVtOzVpzSINLqlQC
 BJOW1ePyhJ8LqKdTRtSe5BHM8RtwDRukDGpGmJjKJeCvv6uE2wrcjZcwbTxghatj
 AFelcSlTdIJZBSc7+rWm/Y5nm857erXs5rt2bLjJBa1/gWg19yAj8aY08zzael3T
 juyvNH/Au79sCmOznGvX4TrltpnhU4kdLKYZ3zpDpbmc4l33kaOz+3xn9NdMnWA2
 zb9nSBePXkI=
 =CchM
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/huth-gitlab/tags/pull-request-2020-01-12' into staging

* Move qtests into a separate directory
* Build index.html for docs

# gpg: Signature made Sun 12 Jan 2020 11:21:41 GMT
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* remotes/huth-gitlab/tags/pull-request-2020-01-12:
  docs: build an index page for the HTML docs
  tests/libqos: Move the libqos files under tests/qtest/
  tests/Makefile: Move qtest-related settings to a separate Makefile.include
  test: Move qtests to a separate directory
  tests/Makefile: Separate unit test dependencies from qtest dependencies
  tests/Makefile: Remove 'tests/' and '$(EXESUF)' from the check-qtest variables
  tests/ptimer: Remove unnecessary inclusion of libqtest.h
  tests/Makefile: test-char does not need libqtest

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-13 13:06:49 +00:00
Stefan Hajnoczi
22108f333d docs: build an index page for the HTML docs
There is no index.html start page for the QEMU HTML documentation.  An
index page is needed so that documentation can be browsed easily on the
web.

This patch adds an index.html.in template file where the QEMU version
number is expanded.  It is written in HTML instead of using the existing
sphinx (rST) and texi documentation generators because they are
heavyweight and would make this harder.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20191219135620.1626608-1-stefanha@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-01-12 11:42:41 +01:00
Peter Maydell
b952544fe8 * Compat machines fix (Denis)
* Command line parsing fixes (Michal, Peter, Xiaoyao)
 * Cooperlake CPU model fixes (Xiaoyao)
 * i386 gdb fix (mkdolata)
 * IOEventHandler cleanup (Philippe)
 * icount fix (Pavel)
 * RR support for random number sources (Pavel)
 * Kconfig fixes (Philippe)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQEcBAABAgAGBQJeFbG8AAoJEL/70l94x66DCpMIAKBwxBL+VegqI+ySKgmtIBQX
 LtU+ardEeZ37VfWfvuWzTFe+zQ0hsFpz/e0LHE7Ae+LVLMNWXixlmMrTIm+Xs762
 hJzxBjhUhkdrMioVYTY16Kqap4Nqaxu70gDQ32Ve2sY6xYGxYLSaJooBOU5bXVgb
 HPspHFVpeP6ZshBd1n2LXsgURE6v3AjTwqcsPCkL/AESFdkdOsoHeXjyKWJG1oPy
 W7btzlUEqVsauZI8/PhhW/8hZUvUsJVHonYLTZTyy8aklU7aOILSyT2uPXFBVUVQ
 irkQjLtD4dWlogBKO4i/QHMuwV+Asa57WNPmqv3EcIWPUWmTY84H0g2AxRgcc2M=
 =48jx
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* Compat machines fix (Denis)
* Command line parsing fixes (Michal, Peter, Xiaoyao)
* Cooperlake CPU model fixes (Xiaoyao)
* i386 gdb fix (mkdolata)
* IOEventHandler cleanup (Philippe)
* icount fix (Pavel)
* RR support for random number sources (Pavel)
* Kconfig fixes (Philippe)

# gpg: Signature made Wed 08 Jan 2020 10:41:00 GMT
# gpg:                using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (38 commits)
  chardev: Use QEMUChrEvent enum in IOEventHandler typedef
  chardev: use QEMUChrEvent instead of int
  chardev/char: Explicit we ignore some QEMUChrEvent in IOEventHandler
  monitor/hmp: Explicit we ignore a QEMUChrEvent in IOEventHandler
  monitor/qmp: Explicit we ignore few QEMUChrEvent in IOEventHandler
  virtio-console: Explicit we ignore some QEMUChrEvent in IOEventHandler
  vhost-user-blk: Explicit we ignore few QEMUChrEvent in IOEventHandler
  vhost-user-net: Explicit we ignore few QEMUChrEvent in IOEventHandler
  vhost-user-crypto: Explicit we ignore some QEMUChrEvent in IOEventHandler
  ccid-card-passthru: Explicit we ignore QEMUChrEvent in IOEventHandler
  hw/usb/redirect: Explicit we ignore few QEMUChrEvent in IOEventHandler
  hw/usb/dev-serial: Explicit we ignore few QEMUChrEvent in IOEventHandler
  hw/char/terminal3270: Explicit ignored QEMUChrEvent in IOEventHandler
  hw/ipmi: Explicit we ignore some QEMUChrEvent in IOEventHandler
  hw/ipmi: Remove unnecessary declarations
  target/i386: Add missed features to Cooperlake CPU model
  target/i386: Add new bit definitions of MSR_IA32_ARCH_CAPABILITIES
  target/i386: Fix handling of k_gs_base register in 32-bit mode in gdbstub
  hw/rtc/mc146818: Add missing dependency on ISA Bus
  hw/nvram/Kconfig: Restrict CHRP NVRAM to machines using OpenBIOS or SLOF
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-10 17:16:49 +00:00
Peter Maydell
973d306dd6 virtio, pci, pc: fixes, features
Bugfixes all over the place.
 HMAT support.
 New flags for vhost-user-blk utility.
 Auto-tuning of seg max for virtio storage.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAl4TaMEPHG1zdEByZWRo
 YXQuY29tAAoJECgfDbjSjVRpvzgH/2LyDAzCa9h93ikSJjmyUk5FUaqve38daEb3
 S3JYjwKxQx7u1ydooKhvBQnBCZ2i3S+k62gfYyKB+nBv8xvjs0Eg5D1YJ5E8hciy
 lf5OFGWWtX2iPDjZwQwT13kiJe0o3JRGxJJ6XqTEG+1EYOp7cky/FEv4PD030b9m
 I2wROZ/Am+onB9YJX8c0Vv1CG+AryuJNXnvwQzTXEjj4U7bEYUyJwVZaCRyAdWQ3
 uYXIZN9VwjVX6BFvy9ZAJbEsUVJvOM1/aQaDqcrLz+VlzRT7bRkKHi2G3vakrm1I
 r5OpgyLo84132awCncbSykKDH5o8WaxLaJBjGmuBfasMz9wPzAg=
 =uL1o
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio, pci, pc: fixes, features

Bugfixes all over the place.
HMAT support.
New flags for vhost-user-blk utility.
Auto-tuning of seg max for virtio storage.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Mon 06 Jan 2020 17:05:05 GMT
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream: (32 commits)
  intel_iommu: add present bit check for pasid table entries
  intel_iommu: a fix to vtd_find_as_from_bus_num()
  virtio-net: delete also control queue when TX/RX deleted
  virtio: reset region cache when on queue deletion
  virtio-mmio: update queue size on guest write
  tests: add virtio-scsi and virtio-blk seg_max_adjust test
  virtio: make seg_max virtqueue size dependent
  hw: fix using 4.2 compat in 5.0 machine types for i440fx/q35
  vhost-user-scsi: reset the device if supported
  vhost-user: add VHOST_USER_RESET_DEVICE to reset devices
  hw/pci/pci_host: Let pci_data_[read/write] use unsigned 'size' argument
  hw/pci/pci_host: Remove redundant PCI_DPRINTF()
  virtio-mmio: Clear v2 transport state on soft reset
  ACPI: add expected files for HMAT tests (acpihmat)
  tests/bios-tables-test: add test cases for ACPI HMAT
  tests/numa: Add case for QMP build HMAT
  hmat acpi: Build Memory Side Cache Information Structure(s)
  hmat acpi: Build System Locality Latency and Bandwidth Information Structure(s)
  hmat acpi: Build Memory Proximity Domain Attributes Structure(s)
  numa: Extend CLI to provide memory side cache information
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-07 16:25:00 +00:00
Pavel Dovgalyuk
878ec29b9c replay: record and replay random number sources
Record/replay feature of icount allows deterministic running of execution
scenarios. Some CPUs and peripheral devices read random numbers from
external sources making deterministic execution impossible.
This patch adds recording and replaying of random read operations
into guest-random module, which is used by the virtual hardware.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Message-Id: <157675984852.14505.15709141760677102489.stgit@pasha-Precision-3630-Tower>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-07 12:08:39 +01:00
Marc-André Lureau
5010cec2bc Add dbus-vmstate object
When instantiated, this object will connect to the given D-Bus bus
"addr". During migration, it will take/restore the data from
org.qemu.VMState1 instances. See documentation for details.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-06 18:41:32 +04:00
Marc-André Lureau
a566907f1b docs: start a document to describe D-Bus usage
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-06 18:41:32 +04:00
Raphael Norwitz
d91d57e604 vhost-user: add VHOST_USER_RESET_DEVICE to reset devices
Add a VHOST_USER_RESET_DEVICE message which will reset the vhost user
backend. Disabling all rings, and resetting all internal state, ready
for the backend to be reinitialized.

A backend has to report it supports this features with the
VHOST_USER_PROTOCOL_F_RESET_DEVICE protocol feature bit. If it does
so, the new message is used instead of sending a RESET_OWNER which has
had inconsistent implementations.

Signed-off-by: David Vrabel <david.vrabel@nutanix.com>
Signed-off-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Message-Id: <1572385083-5254-2-git-send-email-raphael.norwitz@nutanix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-01-05 07:03:03 -05:00
Micky Yun Chan
6620801f39 Implement backend program convention command for vhost-user-blk
This patch is to add standard commands defined in docs/interop/vhost-user.rst
For vhost-user-* program

Signed-off-by: Micky Yun Chan (michiboo) <chanmickyyun@gmail.com>
Message-Id: <20191209015331.5455-1-chanmickyyun@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-01-05 07:03:03 -05:00
Peter Maydell
f0dcfddece Pull request
-----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCAAdFiEEhpWov9P5fNqsNXdanKSrs4Grc8gFAl38oYcACgkQnKSrs4Gr
 c8g8vgf+M5I7pJpPe6bRORrpd0K2Ji6kU9LS7Up6Tm6WLPsX3izVvKrWoHBCKJyt
 R6fwImw4WukDuesYvOMVZWfsr+hSyjw1GVSahMOJZ8zKvZdRt1cvXMaiwck0178J
 wBycLDXdTxrVpYoHJzXCE/dvD39nvMeCA8E3PImThPfI9Rxdg3QTbvilj62//Omj
 fV0ZZPdvi4CFkzbqbBSoLTzepl3NOtoeffeaaKa7JQfw7ttrWicZM8PayKVTgML1
 TPD6EOiwekXP/H6l1jYV4zTMHxjutrZwdePmGq8uTDmVOUgFzFgV9dZcBNHQAmBb
 DwzDBR0RhjsuKnZ01kpg95f8cP0h4A==
 =R5ec
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Pull request

# gpg: Signature made Fri 20 Dec 2019 10:25:11 GMT
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request:
  virtio-blk: fix out-of-bounds access to bitmap in notify_guest_bh
  docs: fix rst syntax errors in unbuilt docs
  virtio-blk: deprecate SCSI passthrough

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-03 17:18:08 +00:00
Peter Maydell
f59b31e6d0 Various testing and logging updates
- test tci with Travis
   - enable multiarch testing in Travis
   - default to out-of-tree builds
   - make changing logfile safe via RCU
   - remove redundant tests
   - remove gtester test from docker
   - convert DEBUG_MMAP to tracepoints
   - remove hand rolled glob function
   - trigger tcg re-configure when needed
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCgAdFiEEZoWumedRZ7yvyN81+9DbCVqeKkQFAl37M6gACgkQ+9DbCVqe
 KkQ0Rwf/d0lGDPQN1Uf0zqZRQQmDCqWVuqHhZJ5xWDjbyVT2eUwR07TvNZeUKEWX
 iO+u6S7Tv91oLjZN5WjhaiuSjtJaEzCdcpkIJAWXLP/lzse37HEwvLBsdg71y+46
 LNvBrJRPpQotdb7fjr8RgCwc1qg2Bz15ekSn7XIA175zTMmUsshLJBVhLbGNqrVm
 F2UmjB9oFJ0+nzrcEnpFmWw7xvVrX1dImZXv5C2pvuHF7efSjGwiFviTRZgDjOGs
 V7HiWRV1QcgTigncncxTMbhMTKTVKK+e7O+y0DZWt/NSrT/yLDy5rcwySpmvu6C+
 cRmh/0tMo1KAhiz8Xy8LookhVj6hdA==
 =OAkV
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/stsquad/tags/pull-tesing-and-misc-191219-1' into staging

Various testing and logging updates

  - test tci with Travis
  - enable multiarch testing in Travis
  - default to out-of-tree builds
  - make changing logfile safe via RCU
  - remove redundant tests
  - remove gtester test from docker
  - convert DEBUG_MMAP to tracepoints
  - remove hand rolled glob function
  - trigger tcg re-configure when needed

# gpg: Signature made Thu 19 Dec 2019 08:24:08 GMT
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-tesing-and-misc-191219-1: (25 commits)
  tests/tcg: ensure we re-configure if configure.sh is updated
  trace: replace hand-crafted pattern_glob with g_pattern_match_simple
  linux-user: convert target_munmap debug to a tracepoint
  linux-user: log page table changes under -d page
  linux-user: add target_mmap_complete tracepoint
  linux-user: convert target_mmap debug to tracepoint
  linux-user: convert target_mprotect debug to tracepoint
  travis.yml: Remove the redundant clang-with-MAIN_SOFTMMU_TARGETS entry
  docker: gtester is no longer used
  Added tests for close and change of logfile.
  Add use of RCU for qemu_logfile.
  qemu_log_lock/unlock now preserves the qemu_logfile handle.
  Add a mutex to guarantee single writer to qemu_logfile handle.
  Cleaned up flow of code in qemu_set_log(), to simplify and clarify.
  Fix double free issue in qemu_set_log_filename().
  ci: build out-of-tree
  travis.yml: Enable builds on arm64, ppc64le and s390x
  tests/test-util-filemonitor: Skip test on non-x86 Travis containers
  tests/hd-geo-test: Skip test when images can not be created
  iotests: Skip test 079 if it is not possible to create large files
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-12-20 14:00:49 +00:00
Stefan Hajnoczi
f21673c35e docs: fix rst syntax errors in unbuilt docs
The .rst files outside docs/{devel,interop,specs} aren't built yet and
therefore a few syntax errors have slipped through.  Fix them.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20191111094411.427174-1-stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-12-19 16:20:21 +00:00
Wainer dos Santos Moschetta
1e48931c0c tests/vm: Allow to set qemu-img path
By default VM build test use qemu-img from system's PATH to
create the image disk. Due the lack of qemu-img on the system
or the desire to simply use a version built with QEMU, it would
be nice to allow one to set its path. So this patch makes that
possible by reading the path to qemu-img from QEMU_IMG if set,
otherwise it fallback to default behavior.

Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Message-Id: <20191114134246.12073-2-wainersm@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-12-18 20:17:33 +00:00
Paolo Bonzini
f3224c5285 docs: add memory API reference
Add kernel-doc directive to parse and include doc comments from
include/exec/memory.h.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-12-17 19:36:58 +01:00
Peter Maydell
f298bb45dc docs: Create bitops.rst as example of kernel-docs
Create a bitops.rst which is just a container for the
kernel-doc comments in qemu/bitops.h.

This is mostly a test of the kernel-doc extension machinery.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20190521122519.12573-7-peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-12-17 19:36:57 +01:00
Peter Maydell
22b5ea75e1 docs/conf.py: Enable use of kerneldoc sphinx extension
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20190521122519.12573-4-peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-12-17 19:36:57 +01:00
Paolo Bonzini
e2c546358f docs: import Linux kernel-doc script and extension
Import Linux's kernel-doc script as of commit 15e2544ed38a1e, as well
as the Sphinx extension to call kernel-doc according to the arguments
and parameters given to a reStructuredText directive.

The kernel-doc extension accepts a filename, which is relative to
the QEMU source tree root.  The extension also notifies Sphinx about the
document dependency on the file, causing the document to be rebuilt when
the file has been changed.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-12-17 19:36:32 +01:00
Cleber Rosa
ba21bde930 Acceptance tests: use avocado tags for machine type
The same way the arch tag is being used as a fallback for the arch
parameter, let's do the same for QEMU's machine and avoid some boiler
plate code.

This is now possible because, since Avocado 72.0, it's possible to use
tags with names that match the machine types on QEMU.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Message-Id: <20191104151323.9883-4-crosa@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
2019-12-16 11:23:19 -05:00
Alex Bennée
5c6ecbdc83 docs/devel: update tcg-plugins.rst with API versioning details
While we are at it fix up the quoted code sections with the inline ::
approach.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Robert Foley <robert.foley@linaro.org>
2019-11-20 10:53:31 +00:00
Alex Bennée
8ea6abf0d0 docs/devel: rename plugins.rst to tcg-plugins.rst
This makes it a bit clearer what this is about.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-11-20 10:53:31 +00:00
Sergio Lopez
62e9dc3582 docs/microvm.rst: add instructions for shutting down the guest
Add a new section explaining the particularities of the microvm
machine type for triggering a guest-initiated shut down.

Signed-off-by: Sergio Lopez <slp@redhat.com>
Message-Id: <20191115161338.42864-3-slp@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-11-19 10:01:34 +01:00
Sergio Lopez
ff9d708933 docs/microvm.rst: fix alignment in "Limitations"
Fix the alignment of the items in the "Limitations" section.

Signed-off-by: Sergio Lopez <slp@redhat.com>
Message-Id: <20191115161338.42864-2-slp@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-11-19 10:01:33 +01:00
Dr. David Alan Gilbert
df59feb197 global: Squash 'the the'
'the' has a tendency to double up; squash them back down.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20191104185202.102504-1-dgilbert@redhat.com>
[lv: removed disas/libvixl/vixl/invalset.h change]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-11-06 17:19:40 +01:00
Andrew Jones
87014c6b36 target/arm/kvm: host cpu: Add support for sve<N> properties
Allow cpu 'host' to enable SVE when it's available, unless the
user chooses to disable it with the added 'sve=off' cpu property.
Also give the user the ability to select vector lengths with the
sve<N> properties. We don't adopt 'max' cpu's other sve property,
sve-max-vq, because that property is difficult to use with KVM.
That property assumes all vector lengths in the range from 1 up
to and including the specified maximum length are supported, but
there may be optional lengths not supported by the host in that
range. With KVM one must be more specific when enabling vector
lengths.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Message-id: 20191031142734.8590-10-drjones@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-11-01 20:40:59 +00:00
Andrew Jones
6fa8a37949 target/arm/cpu64: max cpu: Support sve properties with KVM
Extend the SVE vq map initialization and validation with KVM's
supported vector lengths when KVM is enabled. In order to determine
and select supported lengths we add two new KVM functions for getting
and setting the KVM_REG_ARM64_SVE_VLS pseudo-register.

This patch has been co-authored with Richard Henderson, who reworked
the target/arm/cpu64.c changes in order to push all the validation and
auto-enabling/disabling steps into the finalizer, resulting in a nice
LOC reduction.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Message-id: 20191031142734.8590-9-drjones@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-11-01 20:40:59 +00:00
Andrew Jones
0df9142d27 target/arm/cpu64: max cpu: Introduce sve<N> properties
Introduce cpu properties to give fine control over SVE vector lengths.
We introduce a property for each valid length up to the current
maximum supported, which is 2048-bits. The properties are named, e.g.
sve128, sve256, sve384, sve512, ..., where the number is the number of
bits. See the updates to docs/arm-cpu-features.rst for a description
of the semantics and for example uses.

Note, as sve-max-vq is still present and we'd like to be able to
support qmp_query_cpu_model_expansion with guests launched with e.g.
-cpu max,sve-max-vq=8 on their command lines, then we do allow
sve-max-vq and sve<N> properties to be provided at the same time, but
this is not recommended, and is why sve-max-vq is not mentioned in the
document.  If sve-max-vq is provided then it enables all lengths smaller
than and including the max and disables all lengths larger. It also has
the side-effect that no larger lengths may be enabled and that the max
itself cannot be disabled. Smaller non-power-of-two lengths may,
however, be disabled, e.g. -cpu max,sve-max-vq=4,sve384=off provides a
guest the vector lengths 128, 256, and 512 bits.

This patch has been co-authored with Richard Henderson, who reworked
the target/arm/cpu64.c changes in order to push all the validation and
auto-enabling/disabling steps into the finalizer, resulting in a nice
LOC reduction.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Reviewed-by: Beata Michalska <beata.michalska@linaro.org>
Message-id: 20191031142734.8590-5-drjones@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-11-01 20:40:59 +00:00
Andrew Jones
e19afd5667 target/arm/monitor: Introduce qmp_query_cpu_model_expansion
Add support for the query-cpu-model-expansion QMP command to Arm. We
do this selectively, only exposing CPU properties which represent
optional CPU features which the user may want to enable/disable.
Additionally we restrict the list of queryable cpu models to 'max',
'host', or the current type when KVM is in use. And, finally, we only
implement expansion type 'full', as Arm does not yet have a "base"
CPU type. More details and example queries are described in a new
document (docs/arm-cpu-features.rst).

Note, certainly more features may be added to the list of advertised
features, e.g. 'vfp' and 'neon'. The only requirement is that we can
detect invalid configurations and emit failures at QMP query time.
For 'vfp' and 'neon' this will require some refactoring to share a
validation function between the QMP query and the CPU realize
functions.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Beata Michalska <beata.michalska@linaro.org>
Message-id: 20191031142734.8590-2-drjones@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-11-01 08:49:10 +00:00
Peter Maydell
68d8ef4ec5 TCG Plugins initial implementation
- use --enable-plugins @ configure
   - low impact introspection (-plugin empty.so to measure overhead)
   - plugins cannot alter guest state
   - example plugins included in source tree (tests/plugins)
   - -d plugin to enable plugin output in logs
   - check-tcg runs extra tests when plugins enabled
   - documentation in docs/devel/plugins.rst
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCgAdFiEEZoWumedRZ7yvyN81+9DbCVqeKkQFAl23BZMACgkQ+9DbCVqe
 KkRPegf/QHygZ4ER2jOaWEookxiOEcik+dzQKVGNqLNXeMLvo5fGjGVpFoFxSgfv
 ZvCAL4xbW44zsYlVfh59tfn4Tu9qK7s7/qM3WXpHsmuvEuhoWef0Lt2jSe+D46Rs
 KeG/aX+rHLUR8rr9eCgE+1/MQmxPUj3VUonkUpNkk2ebBbSNoLSOudB4DD9Vcyl7
 Pya1kPvA6W9bwI20ZSWihE7flg13o62Pp+LgAFLrsfxXOxOMkPrU8Pp+B0Dvr+hL
 5Oh0clZLhiRi75x+KVGZ90TVsoftdjYoOWGMOudS/+NNmqKT1NTLm0K1WJYyRMQ1
 V0ne4/OcGNq7x8gcOx/xs09ADu5/VA==
 =UXR/
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/stsquad/tags/pull-tcg-plugins-281019-4' into staging

TCG Plugins initial implementation

  - use --enable-plugins @ configure
  - low impact introspection (-plugin empty.so to measure overhead)
  - plugins cannot alter guest state
  - example plugins included in source tree (tests/plugins)
  - -d plugin to enable plugin output in logs
  - check-tcg runs extra tests when plugins enabled
  - documentation in docs/devel/plugins.rst

# gpg: Signature made Mon 28 Oct 2019 15:13:23 GMT
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-tcg-plugins-281019-4: (57 commits)
  travis.yml: enable linux-gcc-debug-tcg cache
  MAINTAINERS: add me for the TCG plugins code
  scripts/checkpatch.pl: don't complain about (foo, /* empty */)
  .travis.yml: add --enable-plugins tests
  include/exec: wrap cpu_ldst.h in CONFIG_TCG
  accel/stubs: reduce headers from tcg-stub
  tests/plugin: add hotpages to analyse memory access patterns
  tests/plugin: add instruction execution breakdown
  tests/plugin: add a hotblocks plugin
  tests/tcg: enable plugin testing
  tests/tcg: drop test-i386-fprem from TESTS when not SLOW
  tests/tcg: move "virtual" tests to EXTRA_TESTS
  tests/tcg: set QEMU_OPTS for all cris runs
  tests/tcg/Makefile.target: fix path to config-host.mak
  tests/plugin: add sample plugins
  linux-user: support -plugin option
  vl: support -plugin option
  plugin: add qemu_plugin_outs helper
  plugin: add qemu_plugin_insn_disas helper
  plugin: expand the plugin_init function to include an info block
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-30 14:10:32 +00:00
Jens Freimann
9711cd0dfc net/virtio: add failover support
This patch adds support to handle failover device pairs of a virtio-net
device and a (vfio-)pci device, where the virtio-net acts as the standby
device and the (vfio-)pci device as the primary.

The general idea is that we have a pair of devices, a (vfio-)pci and a
emulated (virtio-net) device. Before migration the vfio device is
unplugged and data flows to the emulated device, on the target side
another (vfio-)pci device is plugged in to take over the data-path. In the
guest the net_failover module will pair net devices with the same MAC
address.

To achieve this we need:

1. Provide a callback function for the should_be_hidden DeviceListener.
   It is called when the primary device is plugged in. Evaluate the QOpt
   passed in to check if it is the matching primary device. It returns
   if the device should be hidden or not.
   When it should be hidden it stores the device options in the VirtioNet
   struct and the device is added once the VIRTIO_NET_F_STANDBY feature is
   negotiated during virtio feature negotiation.

   If the virtio-net devices are not realized at the time the (vfio-)pci
   devices are realized, we need to connect the devices later. This way
   we make sure primary and standby devices can be specified in any
   order.

2. Register a callback for migration status notifier. When called it
   will unplug its primary device before the migration happens.

3. Register a callback for the migration code that checks if a device
   needs to be unplugged from the guest.

Signed-off-by: Jens Freimann <jfreimann@redhat.com>
Message-Id: <20191029114905.6856-11-jfreimann@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2019-10-29 18:55:26 -04:00
Alex Bennée
027e3332b8 docs/devel: add plugins.rst design document
This is mostly extracted from Emilio's more verbose commit comments
with some additional verbiage from me.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2019-10-28 15:12:38 +00:00
Paolo Bonzini
673652a785 Merge commit 'df84f17' into HEAD
This merge fixes a semantic conflict with the trivial tree.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-10-26 15:38:02 +02:00
Peter Krempa
23394b4c39 qapi: Add feature flags to commands
Similarly to features for struct types introduce the feature flags also
for commands. This will allow notifying management layers of fixes and
compatible changes in the behaviour of a command which may not be
detectable any other way.

The changes were heavily inspired by commit 6a8c0b5102.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20191018081454.21369-3-armbru@redhat.com>
2019-10-22 13:54:13 +02:00
Sergio Lopez
e00803aab4 docs/microvm.rst: document the new microvm machine type
Document the new microvm machine type.

Signed-off-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2019-10-22 09:39:54 +02:00
Vitaly Kuznetsov
30d6ff662d i386/kvm: add NoNonArchitecturalCoreSharing Hyper-V enlightenment
Hyper-V TLFS specifies this enlightenment as:
"NoNonArchitecturalCoreSharing - Indicates that a virtual processor will never
share a physical core with another virtual processor, except for virtual
processors that are reported as sibling SMT threads. This can be used as an
optimization to avoid the performance overhead of STIBP".

However, STIBP is not the only implication. It was found that Hyper-V on
KVM doesn't pass MD_CLEAR bit to its guests if it doesn't see
NoNonArchitecturalCoreSharing bit.

KVM reports NoNonArchitecturalCoreSharing in KVM_GET_SUPPORTED_HV_CPUID to
indicate that SMT on the host is impossible (not supported of forcefully
disabled).

Implement NoNonArchitecturalCoreSharing support in QEMU as tristate:
'off' - the feature is disabled (default)
'on' - the feature is enabled. This is only safe if vCPUS are properly
 pinned and correct topology is exposed. As CPU pinning is done outside
 of QEMU the enablement decision will be made on a higher level.
'auto' - copy KVM setting. As during live migration SMT settings on the
source and destination host may differ this requires us to add a migration
blocker.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20191018163908.10246-1-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-10-22 09:38:42 +02:00
Peter Maydell
39b68bc4f1 virtio, vhost, acpi: features, fixes, tests
ARM ACPI memory hotplug support +
 tests for new arm/virt ACPI tables.
 
 Virtio fs support (no migration).
 A vhost-user reconnect bugfix.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQEcBAABAgAGBQJdpjPbAAoJECgfDbjSjVRpQqUH/2xyT++y8K17mCI1IILLZd3d
 eOqElEHz78qlEfR2euv63YksZoeHpMO5HiAdwOGGF8CjcaCT4Hl+pPDffTYVXtt+
 VZ88vSSXL49wpMcpvRGR5Isy0eXJzWilTBMu2eu8phN9tX82dlu08Oi4XGAosrBJ
 uZg61DyiGDnSOpoofHhjvXJEaiL0pzkTjf8qAoW3TaVcB9NQKnunMEIDD646JS5z
 AAj4+XBJfUG9cp7/MG+djjVmJDdUpjL5e5uWNWakbgUVqSbHog78RIrBoD6SH7pt
 /6hHHoSM9VX1wWgdTdVdNAQAZVnWs31w4v31d8UfaT15KJEoG47U0gDgmLzXDyo=
 =+xdg
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio, vhost, acpi: features, fixes, tests

ARM ACPI memory hotplug support +
tests for new arm/virt ACPI tables.

Virtio fs support (no migration).
A vhost-user reconnect bugfix.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Tue 15 Oct 2019 22:02:19 BST
# gpg:                using RSA key 281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream:
  virtio: add vhost-user-fs-pci device
  virtio: add vhost-user-fs base device
  virtio: Add virtio_fs linux headers
  tests/acpi: add expected tables for arm/virt
  tests: document how to update acpi tables
  tests: Add bios tests to arm/virt
  tests: allow empty expected files
  tests/acpi: add empty files
  tests: Update ACPI tables list for upcoming arm/virt tests
  docs/specs: Add ACPI GED documentation
  hw/arm: Use GED for system_powerdown event
  hw/arm: Factor out powerdown notifier from GPIO
  hw/arm/virt-acpi-build: Add PC-DIMM in SRAT
  hw/arm/virt: Enable device memory cold/hot plug with ACPI boot
  hw/arm/virt: Add memory hotplug framework
  hw/acpi: Add ACPI Generic Event Device Support
  hw/acpi: Do not create memory hotplug method when handler is not defined
  hw/acpi: Make ACPI IO address space configurable
  vhost-user: save features if the char dev is closed

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-17 15:30:44 +01:00
Peter Maydell
3af78db681 Block layer patches:
- block: Fix crash with qcow2 partial cluster COW with small cluster
   sizes (misaligned write requests with BDRV_REQ_NO_FALLBACK)
 - qcow2: Fix integer overflow potentially causing corruption with huge
   requests
 - vhdx: Detect truncated image files
 - tools: Support help options for --object
 - Various block-related replay improvements
 - iotests/028: Fix for long $TEST_DIRs
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJdpJwuAAoJEH8JsnLIjy/W4EIP/ieDG6LwYIkxk6UPAnPm2ZtT
 jEBj1jZNbPPMVPCzeVryS2qgoSB4ItnKlSpbW9Z+DX2EL8gr/sHZot4J6BXkxaJV
 mxHa4KCLZUYHfLbVBX+ubb/fufu2ItGUtY2LcdxyWASk/6mWKYVivPunwaK4gEiD
 CBl9RgSMSy1bpBGIky2NMylOCr5KlSeweH/XL3J3Jodpp/3nnDpZ96iy953R7Bes
 OpwZEsDHQmYhDufPqIWVzyq2hEUn22kGe/Rn2KfOHO7SR6aqr+DqtUwlDE9mxxBf
 hFhm6bqbJhHQOTMbTrzqiYwDirR4S5/FlynI9+YbngU9fnkbCIOheTKL5M8PlSow
 H+ZUtmU1Avp0wG3RZVmtCT9upFV7hpC4/fiMr8bdXCyuWy/7d7WB1G4e9ELiX7uo
 VCl6gVviDQbEgnoNS7v6JbP/xjhHuu7Fxh5K0xgT6wtwP53cBqbxORMkwv2u3zCI
 QRuiKOHZW3wv8tdRP/5qhdtIxTy6w20v/lAO/s0Xqn8YlnyfrH71LCNWmG4MOfgP
 ZXwCv9nxpzVsTPU2nLowl0avCwmDVY8Iv/0sN+eybo8xp47pCmPV9dKa0rJ+RhFe
 N5blnnwsmJFPW+QD5gBZn7eH3jafHxN2URhG3cwNdWxQS6SiTcVXDsTfn5YB6PjN
 Tb9P2aUJYw94BvUJF2c+
 =gCHy
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches:

- block: Fix crash with qcow2 partial cluster COW with small cluster
  sizes (misaligned write requests with BDRV_REQ_NO_FALLBACK)
- qcow2: Fix integer overflow potentially causing corruption with huge
  requests
- vhdx: Detect truncated image files
- tools: Support help options for --object
- Various block-related replay improvements
- iotests/028: Fix for long $TEST_DIRs

# gpg: Signature made Mon 14 Oct 2019 17:02:54 BST
# gpg:                using RSA key 7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* remotes/kevin/tags/for-upstream:
  iotests: Test large write request to qcow2 file
  qcow2: Limit total allocation range to INT_MAX
  qemu-nbd: Support help options for --object
  qemu-img: Support help options for --object
  qemu-io: Support help options for --object
  vl: Split off user_creatable_print_help()
  iotests/028: Fix for long $TEST_DIRs
  block: Reject misaligned write requests with BDRV_REQ_NO_FALLBACK
  replay: add BH oneshot event for block layer
  replay: finish record/replay before closing the disks
  replay: don't drain/flush bdrv queue while RR is working
  replay: update docs for record/replay with block devices
  replay: disable default snapshot for record/replay
  block: implement bdrv_snapshot_goto for blkreplay
  block/vhdx: add check for truncated image files

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-15 13:25:05 +01:00