sdk/emulator/qemu.git
8 years agopxb: cleanup
Cao jin [Tue, 1 Mar 2016 09:45:24 +0000 (17:45 +0800)]
pxb: cleanup

Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
8 years agoqemu-char: make tcp_chr_disconnect() reentrant-safe
Marc-André Lureau [Tue, 23 Feb 2016 18:10:53 +0000 (19:10 +0100)]
qemu-char: make tcp_chr_disconnect() reentrant-safe

During CHR_EVENT_CLOSED, the function could be reentered, make this
case safe.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agoqemu-char: remove all msgfds on disconnect
Marc-André Lureau [Tue, 23 Feb 2016 18:10:52 +0000 (19:10 +0100)]
qemu-char: remove all msgfds on disconnect

Disconnect should reset context.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agoqemu-char: avoid potential double-free
Marc-André Lureau [Tue, 23 Feb 2016 18:10:51 +0000 (19:10 +0100)]
qemu-char: avoid potential double-free

If tcp_set_msgfds() is called several time with NULL fds, this
could lead to double-free.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agovhost-user: remove useless is_server field
Marc-André Lureau [Tue, 23 Feb 2016 18:10:50 +0000 (19:10 +0100)]
vhost-user: remove useless is_server field

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agovhost-user: fix use after free
Marc-André Lureau [Tue, 23 Feb 2016 18:10:49 +0000 (19:10 +0100)]
vhost-user: fix use after free

"name" is freed after visiting options, instead use the first NetClientState
name. Adds a few assert() for clarifying and checking some impossible states.

READ of size 1 at 0x602000000990 thread T0
    #0 0x7f6b251c570c  (/lib64/libasan.so.2+0x4770c)
    #1 0x5566dc380600 in qemu_find_net_clients_except net/net.c:824
    #2 0x5566dc39bac7 in net_vhost_user_event net/vhost-user.c:193
    #3 0x5566dbee862a in qemu_chr_be_event /home/elmarco/src/qemu/qemu-char.c:201
    #4 0x5566dbef2890 in tcp_chr_disconnect /home/elmarco/src/qemu/qemu-char.c:2790
    #5 0x5566dbef2d0b in tcp_chr_sync_read /home/elmarco/src/qemu/qemu-char.c:2835
    #6 0x5566dbee8a99 in qemu_chr_fe_read_all /home/elmarco/src/qemu/qemu-char.c:295
    #7 0x5566dc39b964 in net_vhost_user_watch net/vhost-user.c:180
    #8 0x5566dc5a06c7 in qio_channel_fd_source_dispatch io/channel-watch.c:70
    #9 0x7f6b1aa2ab87 in g_main_dispatch /home/elmarco/src/gnome/glib/glib/gmain.c:3154
    #10 0x7f6b1aa2b9cb in g_main_context_dispatch /home/elmarco/src/gnome/glib/glib/gmain.c:3769
    #11 0x5566dc475ed4 in glib_pollfds_poll /home/elmarco/src/qemu/main-loop.c:212
    #12 0x5566dc476029 in os_host_main_loop_wait /home/elmarco/src/qemu/main-loop.c:257
    #13 0x5566dc476165 in main_loop_wait /home/elmarco/src/qemu/main-loop.c:505
    #14 0x5566dbf08d31 in main_loop /home/elmarco/src/qemu/vl.c:1932
    #15 0x5566dbf16783 in main /home/elmarco/src/qemu/vl.c:4646
    #16 0x7f6b180bb57f in __libc_start_main (/lib64/libc.so.6+0x2057f)
    #17 0x5566dbbf5348 in _start (/home/elmarco/src/qemu/x86_64-softmmu/qemu-system-x86_64+0x3f9348)

0x602000000990 is located 0 bytes inside of 5-byte region [0x602000000990,0x602000000995)
freed by thread T0 here:
    #0 0x7f6b2521666a in __interceptor_free (/lib64/libasan.so.2+0x9866a)
    #1 0x7f6b1aa332a4 in g_free /home/elmarco/src/gnome/glib/glib/gmem.c:189
    #2 0x5566dc5f416f in qapi_dealloc_type_str qapi/qapi-dealloc-visitor.c:134
    #3 0x5566dc5f3268 in visit_type_str qapi/qapi-visit-core.c:196
    #4 0x5566dc5ced58 in visit_type_Netdev_fields /home/elmarco/src/qemu/qapi-visit.c:5936
    #5 0x5566dc5cef71 in visit_type_Netdev /home/elmarco/src/qemu/qapi-visit.c:5960
    #6 0x5566dc381a8d in net_visit net/net.c:1049
    #7 0x5566dc381c37 in net_client_init net/net.c:1076
    #8 0x5566dc3839e2 in net_init_netdev net/net.c:1473
    #9 0x5566dc63cc0a in qemu_opts_foreach util/qemu-option.c:1112
    #10 0x5566dc383b36 in net_init_clients net/net.c:1499
    #11 0x5566dbf15d86 in main /home/elmarco/src/qemu/vl.c:4397
    #12 0x7f6b180bb57f in __libc_start_main (/lib64/libc.so.6+0x2057f)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agonvdimm acpi: emulate dsm method
Xiao Guangrong [Fri, 4 Mar 2016 16:00:35 +0000 (00:00 +0800)]
nvdimm acpi: emulate dsm method

Emulate dsm method after IO VM-exit

Currently, we only introduce the framework and no function is actually
supported

Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agonvdimm acpi: let qemu handle _DSM method
Xiao Guangrong [Fri, 4 Mar 2016 16:00:34 +0000 (00:00 +0800)]
nvdimm acpi: let qemu handle _DSM method

If dsm memory is successfully patched, we let qemu fully emulate
the dsm method

This patch saves _DSM input parameters into dsm memory, tell dsm
memory address to QEMU, then fetch the result from the dsm memory

Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agonvdimm acpi: introduce patched dsm memory
Xiao Guangrong [Fri, 4 Mar 2016 16:00:33 +0000 (00:00 +0800)]
nvdimm acpi: introduce patched dsm memory

The dsm memory is used to save the input parameters and store
the dsm result which is filled by QEMU.

The address of dsm memory is decided by bios and patched into
int32 object named "MEMA"

Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agonvdimm acpi: initialize the resource used by NVDIMM ACPI
Xiao Guangrong [Fri, 4 Mar 2016 16:00:32 +0000 (00:00 +0800)]
nvdimm acpi: initialize the resource used by NVDIMM ACPI

32 bits IO port starting from 0x0a18 in guest is reserved for NVDIMM
ACPI emulation. The table, NVDIMM_DSM_MEM_FILE, will be patched into
NVDIMM ACPI binary code

OSPM uses this port to tell QEMU the final address of the DSM memory
and notify QEMU to emulate the DSM method

Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agopci-ids: add virtio 1.0 ids to spec
Gerd Hoffmann [Wed, 9 Mar 2016 12:03:11 +0000 (13:03 +0100)]
pci-ids: add virtio 1.0 ids to spec

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agoacpi-test-data: add _DIS methods
Michael S. Tsirkin [Fri, 11 Mar 2016 14:49:19 +0000 (16:49 +0200)]
acpi-test-data: add _DIS methods

commit c82f503dd5c3f0a01a9e63741f1f875652669867
("hw/acpi: fix Q35 support for legacy Windows OS")
added _DIS for all link devices.

Update expected test files accordingly.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agohw/acpi: fix Q35 support for legacy Windows OS
Marcel Apfelbaum [Mon, 7 Mar 2016 19:14:37 +0000 (21:14 +0200)]
hw/acpi: fix Q35 support for legacy Windows OS

Legacy Windows operating systems like Windows XP and Windows 2003
require _DIS method to be present for all interrupt links.

PC machines already have a no-op implemented for GSI links, add
it also in Q35.

Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
8 years agoich9lpc: fix typo
Cao jin [Mon, 7 Mar 2016 12:38:58 +0000 (20:38 +0800)]
ich9lpc: fix typo

change some "rbca" to "rcrb"(root complex register block) while
the other to "rcba"(root complex base address).
Bonus: add more comments and fix some indentation.

Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agomsi_supported -> msi_nonbroken
Michael S. Tsirkin [Fri, 4 Mar 2016 09:24:28 +0000 (11:24 +0200)]
msi_supported -> msi_nonbroken

Rename controller flag to make it clearer what it means.
Add some documentation as well.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agovirtio-pci: call pci reset variant when guest requests reset.
Gerd Hoffmann [Thu, 28 Jan 2016 15:08:07 +0000 (16:08 +0100)]
virtio-pci: call pci reset variant when guest requests reset.

Actually fixes linux not finding virtio 1.0 device virtqueues after
reboot.  Which is new I think, any chance linux kernel virtio code
became more strict in 4.3?

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Tested-by: Fam Zheng <famz@redhat.com>
8 years agoi386: update expected DSDT
Michael S. Tsirkin [Wed, 2 Mar 2016 16:54:29 +0000 (18:54 +0200)]
i386: update expected DSDT

DSDT was changed by:
commit 27b9fc54d23acd8f6829e850a027b3b3878cba37 ("i386: populate floppy
drive information in DSDT").

Update expected files accordingly.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agoi386: populate floppy drive information in DSDT
Roman Kagan [Wed, 17 Feb 2016 18:25:33 +0000 (21:25 +0300)]
i386: populate floppy drive information in DSDT

On x86-based systems Linux determines the presence and the type of
floppy drives via a query of a CMOS field.  So does SeaBIOS when
populating the return data for int 0x13 function 0x08.

However Windows doesn't do it. Instead, it requests this information
from BIOS via int 0x13/0x08 or through ACPI objects _FDE (Floppy Drive
Enumerate) and _FDI (Floppy Drive Information) of the floppy controller
object.  On UEFI systems only ACPI-based detection is supported.

QEMU doesn't provide those objects in its ACPI tables and as a result
floppy drives are invisible to Windows on UEFI/OVMF.

This patch adds those objects to the floppy controller in DSDT,
populating them with the information from respective QEMU objects.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Marcel Apfelbaum <marcel@redhat.com>
Cc: John Snow <jsnow@redhat.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Kevin O'Connor <kevin@koconnor.net>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agofdc: add function to determine drive chs limits
Roman Kagan [Wed, 17 Feb 2016 18:25:32 +0000 (21:25 +0300)]
fdc: add function to determine drive chs limits

When populating ACPI objects for floppy drives one needs to provide the
maximum values for cylinder, sector, and head number the drive supports.

This patch adds a function that iterates through the array of predefined
floppy drive formats and returns the maximum values of c, h, s, out of
those matching the given floppy drive type.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Marcel Apfelbaum <marcel@redhat.com>
Cc: John Snow <jsnow@redhat.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Kevin O'Connor <kevin@koconnor.net>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
8 years agoi386: expose floppy drive CMOS type
Roman Kagan [Wed, 17 Feb 2016 18:25:31 +0000 (21:25 +0300)]
i386: expose floppy drive CMOS type

Make it possible to query the CMOS type of a floppy drive outside of the
source file where it's defined.

It will allow to properly populate the corresponding ACPI objects and
thus enable Windows on BIOS-less systems to access the floppy drives.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Marcel Apfelbaum <marcel@redhat.com>
Cc: John Snow <jsnow@redhat.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Kevin O'Connor <kevin@koconnor.net>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agoi386/acpi: make floppy controller object dynamic
Roman Kagan [Wed, 17 Feb 2016 18:25:30 +0000 (21:25 +0300)]
i386/acpi: make floppy controller object dynamic

Instead of statically declaring the floppy controller in DSDT, with its
_STA method depending on some obscure bit in the parent ISA bridge, add
the object dynamically to DSDT via AML API only when the controller is
present.

The _STA method is no longer necessary and is therefore dropped.  So are
the declarations of the fields indicating whether the contoller is
enabled.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: John Snow <jsnow@redhat.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Kevin O'Connor <kevin@koconnor.net>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agopc-dimm: fix error handling in pc_dimm_check_memdev_is_busy()
Igor Mammedov [Tue, 1 Mar 2016 09:40:48 +0000 (10:40 +0100)]
pc-dimm: fix error handling in pc_dimm_check_memdev_is_busy()

If host_memory_backend_get_memory() were to return error and
NULL MemoryRegion, pc_dimm_check_memdev_is_busy() would crash
dereferencing NULL pointer in memory_region_is_mapped().
But if error is set and non NULL MemoryRegion is returned
then error_setg() will fail with "error already set" assertion
in error_setv()

To avoid above issues use typical error handling pattern
for property setters:

Error *local_error = NULL;
...
error_propagate(errp, local_err);

Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agovhost-user: verify that number of queues is less than MAX_QUEUE_NUM
Ilya Maximets [Wed, 24 Feb 2016 10:44:34 +0000 (13:44 +0300)]
vhost-user: verify that number of queues is less than MAX_QUEUE_NUM

Fix QEMU crash when -netdev vhost-user,queues=n is passed with number
of queues greater than MAX_QUEUE_NUM.

Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
8 years agovirtio-balloon: add 'available' counter
Denis V. Lunev [Wed, 24 Feb 2016 07:50:48 +0000 (10:50 +0300)]
virtio-balloon: add 'available' counter

The patch for the kernel part is in linux-next already:
commit ac88e7c908b920866e529862f2b2f0129b254ab2
    Author: Igor Redko <redkoi@virtuozzo.com>
    Date:   Thu Feb 18 09:23:01 2016 +1100

    virtio_balloon: export 'available' memory to balloon statistics

    Add a new field, VIRTIO_BALLOON_S_AVAIL, to virtio_balloon memory
    statistics protocol, corresponding to 'Available' in /proc/meminfo.

Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Igor Redko <redkoi@virtuozzo.com>
CC: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agohw/virtio: group virtio flags into an enum
Marcel Apfelbaum [Wed, 10 Feb 2016 13:31:13 +0000 (15:31 +0200)]
hw/virtio: group virtio flags into an enum

Minimizes the possibility to assign
the same bit to different features.

Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
8 years agohw/virtio: fix double use of a virtio flag
Marcel Apfelbaum [Wed, 10 Feb 2016 13:31:12 +0000 (15:31 +0200)]
hw/virtio: fix double use of a virtio flag

Commits 1811e64c and a6df8adf use the same virtio feature bit 4
for different features.

Fix it by using different bits.

Reported-by: Laurent Vivier <lvivier@redhat.com>
Tested-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
8 years agoballoon: fix segfault and harden the stats queue
Ladi Prosek [Tue, 1 Mar 2016 11:14:03 +0000 (12:14 +0100)]
balloon: fix segfault and harden the stats queue

The segfault here is triggered by the driver notifying the stats queue
twice after adding a buffer to it. This effectively resets stats_vq_elem
back to NULL and QEMU crashes on the next stats timer tick in
balloon_stats_poll_cb.

This is a regression introduced in 51b19ebe4320f3dc, although admittedly
the device assumed too much about the stats queue protocol even before
that commit. This commit adds a few more checks and ensures that the one
stats buffer gets deallocated on device reset.

Cc: qemu-stable@nongnu.org
Signed-off-by: Ladi Prosek <lprosek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agoacpi: add build_append_named_dword, returning an offset in buffer
Michael S. Tsirkin [Tue, 1 Mar 2016 10:56:07 +0000 (18:56 +0800)]
acpi: add build_append_named_dword, returning an offset in buffer

This is a very limited form of support for runtime patching -
similar in functionality to what we can do with ACPI_EXTRACT
macros in python, but implemented in C.

This is to allow ACPI code direct access to data tables -
which is exactly what DataTableRegion is there for, except
no known windows release so far implements DataTableRegion.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agoacpi: allow using object as offset for OperationRegion
Xiao Guangrong [Tue, 1 Mar 2016 10:56:05 +0000 (18:56 +0800)]
acpi: allow using object as offset for OperationRegion

Extend aml_operation_region() to use object as offset

Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agoacpi: add aml_concatenate()
Xiao Guangrong [Tue, 1 Mar 2016 10:56:04 +0000 (18:56 +0800)]
acpi: add aml_concatenate()

It will be used by nvdimm acpi

Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agoacpi: add aml_create_field()
Xiao Guangrong [Tue, 1 Mar 2016 10:56:03 +0000 (18:56 +0800)]
acpi: add aml_create_field()

It will be used by nvdimm acpi

Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
8 years agoMerge remote-tracking branch 'remotes/kraxel/tags/pull-ui-20160309-1' into staging
Peter Maydell [Thu, 10 Mar 2016 02:51:14 +0000 (02:51 +0000)]
Merge remote-tracking branch 'remotes/kraxel/tags/pull-ui-20160309-1' into staging

add linux evdev support, vnc and console fixes.

# gpg: Signature made Wed 09 Mar 2016 09:02:47 GMT using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-ui-20160309-1:
  ui/console: add escape sequence \e[5, 6n
  input-linux: add switch to enable auto-repeat events
  input-linux: add option to toggle grab on all devices
  input: linux evdev support
  vnc: send cursor when a new client is connecting

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agoui/console: add escape sequence \e[5, 6n
Ren Kimura [Tue, 8 Mar 2016 19:51:21 +0000 (04:51 +0900)]
ui/console: add escape sequence \e[5, 6n

Add support of escape sequence "\e[5n" and "\e[6n" to console.
"\e[5n" reports status of console and it always succeed
in virtual console.
"\e[6n" reports now cursor position in console.

Signed-off-by: Ren Kimura <rkx1209dev@gmail.com>
Message-id: 1457466681-7714-2-git-send-email-rkx1209dev@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
8 years agoMerge remote-tracking branch 'remotes/thibault/tags/samuel-thibault' into staging
Peter Maydell [Wed, 9 Mar 2016 05:14:55 +0000 (05:14 +0000)]
Merge remote-tracking branch 'remotes/thibault/tags/samuel-thibault' into staging

Add Samuel Thibault as slirp maintainer

# gpg: Signature made Tue 08 Mar 2016 20:43:01 GMT using RSA key ID FB6B2F1D
# gpg: Good signature from "Samuel Thibault <samuel.thibault@gnu.org>"
# gpg:                 aka "Samuel Thibault <sthibault@debian.org>"
# gpg:                 aka "Samuel Thibault <samuel.thibault@inria.fr>"
# gpg:                 aka "Samuel Thibault <samuel.thibault@labri.fr>"
# gpg:                 aka "Samuel Thibault <samuel.thibault@ens-lyon.org>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 900C B024 B679 31D4 0F82  304B D017 8C76 7D06 9EE6
#      Subkey fingerprint: F632 74CD C630 0873 CB3D  29D9 E3E5 1CE8 FB6B 2F1D

* remotes/thibault/tags/samuel-thibault:
  MAINTAINERS: Add Samuel Thibault as slirp maintainer

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agoMerge remote-tracking branch 'remotes/amit-migration/tags/migration-for-2.6-6' into...
Peter Maydell [Wed, 9 Mar 2016 01:07:16 +0000 (01:07 +0000)]
Merge remote-tracking branch 'remotes/amit-migration/tags/migration-for-2.6-6' into staging

migration:
* add avx2 instruction optimization, speeds up zero-page checking on
  compatible architectures and compilers (gcc 4.9+)
* add additional postcopy stats to 'info migrate' output

# gpg: Signature made Tue 08 Mar 2016 11:29:48 GMT using RSA key ID 854083B6
# gpg: Good signature from "Amit Shah <amit@amitshah.net>"
# gpg:                 aka "Amit Shah <amit@kernel.org>"
# gpg:                 aka "Amit Shah <amitshah@gmx.net>"

* remotes/amit-migration/tags/migration-for-2.6-6:
  cutils: add avx2 instruction optimization
  configure: detect ifunc and avx2 attribute
  Postcopy: Fix sync count in info migrate

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agoMerge remote-tracking branch 'remotes/kraxel/tags/pull-fw-cfg-20160308-1' into staging
Peter Maydell [Wed, 9 Mar 2016 00:44:43 +0000 (00:44 +0000)]
Merge remote-tracking branch 'remotes/kraxel/tags/pull-fw-cfg-20160308-1' into staging

acpi: add fw_cfg device node to dsdt

# gpg: Signature made Tue 08 Mar 2016 11:15:42 GMT using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-fw-cfg-20160308-1:
  tests: update acpi test data
  fw_cfg: document ACPI device node information
  acpi: arm: add fw_cfg device node to dsdt
  acpi: pc: add fw_cfg device node to dsdt
  pc: fw_cfg: move ioport base constant to pc.h
  fw_cfg: expose control register size in fw_cfg.h

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agoMerge remote-tracking branch 'remotes/amit-virtio-rng/tags/rng-for-2.6-2' into staging
Peter Maydell [Wed, 9 Mar 2016 00:21:17 +0000 (00:21 +0000)]
Merge remote-tracking branch 'remotes/amit-virtio-rng/tags/rng-for-2.6-2' into staging

rng: use simpleq instead of gslist

# gpg: Signature made Tue 08 Mar 2016 10:51:23 GMT using RSA key ID 854083B6
# gpg: Good signature from "Amit Shah <amit@amitshah.net>"
# gpg:                 aka "Amit Shah <amit@kernel.org>"
# gpg:                 aka "Amit Shah <amitshah@gmx.net>"

* remotes/amit-virtio-rng/tags/rng-for-2.6-2:
  rng: switch request queue to QSIMPLEQ

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agoMAINTAINERS: Add Samuel Thibault as slirp maintainer
Samuel Thibault [Thu, 6 Aug 2015 11:10:14 +0000 (13:10 +0200)]
MAINTAINERS: Add Samuel Thibault as slirp maintainer

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Acked-by: Jan Kiszka <jan.kiszka@siemens.com>
8 years agocutils: add avx2 instruction optimization
Liang Li [Tue, 8 Mar 2016 05:53:17 +0000 (13:53 +0800)]
cutils: add avx2 instruction optimization

buffer_find_nonzero_offset() is a hot function during live migration.
Now it use SSE2 instructions for optimization. For platform supports
AVX2 instructions, use AVX2 instructions for optimization can help
to improve the performance of buffer_find_nonzero_offset() about 30%
comparing to SSE2.

Live migration can be faster with this optimization, the test result
shows that for an 8GiB RAM idle guest just boots, this patch can help
to shorten the total live migration time about 6%.

This patch use the ifunc mechanism to select the proper function when
running, for platform supports AVX2, execute the AVX2 instructions,
else, execute the original instructions.

Signed-off-by: Liang Li <liang.z.li@intel.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Suggested-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1457416397-26671-3-git-send-email-liang.z.li@intel.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
8 years agoconfigure: detect ifunc and avx2 attribute
Liang Li [Tue, 8 Mar 2016 05:53:16 +0000 (13:53 +0800)]
configure: detect ifunc and avx2 attribute

Detect if the compiler can support the ifun and avx2, if so, set
CONFIG_AVX2_OPT which will be used to turn on the avx2 instruction
optimization.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Liang Li <liang.z.li@intel.com>
Message-Id: <1457416397-26671-2-git-send-email-liang.z.li@intel.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
8 years agoPostcopy: Fix sync count in info migrate
Dr. David Alan Gilbert [Thu, 25 Feb 2016 10:03:51 +0000 (10:03 +0000)]
Postcopy: Fix sync count in info migrate

I'd missed the sync count off in the postcopy case.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Message-id: 1456394631-18010-1-git-send-email-dgilbert@redhat.com
Message-Id: <1456394631-18010-1-git-send-email-dgilbert@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
8 years agoinput-linux: add switch to enable auto-repeat events
Gerd Hoffmann [Fri, 4 Mar 2016 10:25:16 +0000 (11:25 +0100)]
input-linux: add switch to enable auto-repeat events

Enable with "-input-linux /dev/input/${device},repeat=on".

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 1457087116-4379-4-git-send-email-kraxel@redhat.com

8 years agoinput-linux: add option to toggle grab on all devices
Gerd Hoffmann [Fri, 4 Mar 2016 10:25:15 +0000 (11:25 +0100)]
input-linux: add option to toggle grab on all devices

Maintain a list of all input devices.  Add an option to make grab
work across all devices (so toggling grab on the keybard can switch
over the mouse too).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 1457087116-4379-3-git-send-email-kraxel@redhat.com

8 years agoinput: linux evdev support
Gerd Hoffmann [Fri, 4 Mar 2016 10:25:14 +0000 (11:25 +0100)]
input: linux evdev support

This patch adds support for reading input events directly from linux
evdev devices and forward them to the guest.  Unlike virtio-input-host
which simply passes on all events to the guest without looking at them
this will interpret the events and feed them into the qemu input
subsystem.

Therefore this is limited to what the qemu input subsystem and the
emulated input devices are able to handle.  Also there is no support for
absolute coordinates (tablet/touchscreen).  So we are talking here about
basic mouse and keyboard support.

The advantage is that it'll work without virtio-input drivers in the
guest, the events are delivered to the usual ps/2 or usb input devices
(depending on what the machine happens to have).  And for keyboards
qemu is able to switch the keyboard between guest and host on hotkey.
The hotkey is hard-coded for now (both control keys), initialy the
guest owns the keyboard.

Probably most useful when assigning vga devices with vfio and using a
physical monitor instead of vnc/spice/gtk as guest display.

Usage:  Add '-input-linux /dev/input/event<nr>' to the qemu command
line.  Note that udev has rules which populate /dev/input/by-{id,path}
with static names, which might be more convinient to use.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 1457087116-4379-2-git-send-email-kraxel@redhat.com

8 years agotests: update acpi test data
Gerd Hoffmann [Tue, 8 Mar 2016 10:04:36 +0000 (11:04 +0100)]
tests: update acpi test data

using tests/acpi-test-data/rebuild-expected-aml.sh

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
8 years agofw_cfg: document ACPI device node information
Gabriel L. Somlo [Fri, 19 Feb 2016 18:20:29 +0000 (13:20 -0500)]
fw_cfg: document ACPI device node information

Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Marc Marí <markmb@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1455906029-25565-6-git-send-email-somlo@cmu.edu
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
8 years agoacpi: arm: add fw_cfg device node to dsdt
Gabriel L. Somlo [Fri, 19 Feb 2016 18:20:28 +0000 (13:20 -0500)]
acpi: arm: add fw_cfg device node to dsdt

Add a fw_cfg device node to the ACPI DSDT. This is mostly
informational, as the authoritative fw_cfg MMIO region(s)
are listed in the Device Tree. However, since we are building
ACPI tables, we might as well be thorough while at it...

Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Marc Marí <markmb@redhat.com>
Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1455906029-25565-5-git-send-email-somlo@cmu.edu
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
8 years agoacpi: pc: add fw_cfg device node to dsdt
Gabriel L. Somlo [Fri, 19 Feb 2016 18:20:27 +0000 (13:20 -0500)]
acpi: pc: add fw_cfg device node to dsdt

Add a fw_cfg device node to the ACPI DSDT. While the guest-side
firmware can't utilize this information (since it has to access
the hard-coded fw_cfg device to extract ACPI tables to begin with),
having fw_cfg listed in ACPI will help the guest kernel keep a more
accurate inventory of in-use IO port regions.

Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Marc Marí <markmb@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1455906029-25565-4-git-send-email-somlo@cmu.edu
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
8 years agopc: fw_cfg: move ioport base constant to pc.h
Gabriel L. Somlo [Fri, 19 Feb 2016 18:20:26 +0000 (13:20 -0500)]
pc: fw_cfg: move ioport base constant to pc.h

Move BIOS_CFG_IOPORT define from pc.c to pc.h, and rename
it to FW_CFG_IO_BASE.

Cc: Marc Marí <markmb@redhat.com>
Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Marc Marí <markmb@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1455906029-25565-3-git-send-email-somlo@cmu.edu
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
8 years agoMerge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging
Peter Maydell [Tue, 8 Mar 2016 10:25:50 +0000 (10:25 +0000)]
Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging

# gpg: Signature made Tue 08 Mar 2016 07:46:08 GMT using RSA key ID 398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F  3562 EF04 965B 398D 6211

* remotes/jasowang/tags/net-pull-request:
  net: check packet payload length
  filter-buffer: Add status_changed callback processing
  filter: Add 'status' property for filter object
  rocker: allow user to specify rocker world by property
  rocker: add name field into WorldOps ale let world specify its name
  rocker: return -ENOMEM in case of some world alloc fails
  rocker: forbid to change world type
  net: netmap: probe netmap interface for virtio-net header
  net: simplify net_init_tap_one logic
  MAINTAINERS: Add entries for include/net/ files
  net: filter: correctly remove filter from the list during finalization
  net: ne2000: check ring buffer control registers

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agofw_cfg: expose control register size in fw_cfg.h
Gabriel L. Somlo [Fri, 19 Feb 2016 18:20:25 +0000 (13:20 -0500)]
fw_cfg: expose control register size in fw_cfg.h

Expose the size of the control register (FW_CFG_CTL_SIZE) in fw_cfg.h.
Add comment to fw_cfg_io_realize() pointing out that since the
8-bit data register is always subsumed by the 16-bit control
register in the port I/O case, we use the control register width
as the *total* width of the (classic, non-DMA) port I/O region reserved
for the device.

Cc: Marc Marí <markmb@redhat.com>
Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Marc Marí <markmb@redhat.com>
Message-id: 1455906029-25565-2-git-send-email-somlo@cmu.edu
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
8 years agovnc: send cursor when a new client is connecting
Frediano Ziglio [Wed, 2 Mar 2016 14:32:22 +0000 (14:32 +0000)]
vnc: send cursor when a new client is connecting

If you have hardware cursor and you are reconnecting the VNC client
you need to send the cursor. Failing to do so make the cursor invisible
till is changed.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Message-id: 1456929142-14033-1-git-send-email-fziglio@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
8 years agonet: check packet payload length
Prasad J Pandit [Wed, 2 Mar 2016 11:59:58 +0000 (17:29 +0530)]
net: check packet payload length

While computing IP checksum, 'net_checksum_calculate' reads
payload length from the packet. It could exceed the given 'data'
buffer size. Add a check to avoid it.

Reported-by: Liu Ling <liuling-it@360.cn>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
8 years agofilter-buffer: Add status_changed callback processing
zhanghailiang [Tue, 1 Mar 2016 05:37:03 +0000 (13:37 +0800)]
filter-buffer: Add status_changed callback processing

While the status of filter-buffer changing from 'on' to 'off',
it need to release all the buffered packets, and delete the related
timer, while switch from 'off' to 'on', it need to resume the release
packets timer.

Here, we extract the process of setup timer into a new helper,
which will be used in the new status_changed callback.

Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Yang Hongyang <hongyang.yang@easystack.cn>
Signed-off-by: Jason Wang <jasowang@redhat.com>
8 years agofilter: Add 'status' property for filter object
zhanghailiang [Tue, 1 Mar 2016 05:37:02 +0000 (13:37 +0800)]
filter: Add 'status' property for filter object

With this property, users can control if this filter is 'on'
or 'off'. The default behavior for filter is 'on'.

For some types of filters, they may need to react to status changing,
So here, we introduced status changing callback/notifier for filter class.

We will skip the disabled ('off') filter when delivering packets in net layer.

Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Yang Hongyang <hongyang.yang@easystack.cn>
Signed-off-by: Jason Wang <jasowang@redhat.com>
8 years agorocker: allow user to specify rocker world by property
Jiri Pirko [Thu, 25 Feb 2016 14:31:58 +0000 (15:31 +0100)]
rocker: allow user to specify rocker world by property

Add property to specify rocker world. All ports will be assigned to this
world.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
8 years agorocker: add name field into WorldOps ale let world specify its name
Jiri Pirko [Thu, 25 Feb 2016 14:31:57 +0000 (15:31 +0100)]
rocker: add name field into WorldOps ale let world specify its name

Also use this in world_name getter function.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
8 years agorocker: return -ENOMEM in case of some world alloc fails
Jiri Pirko [Thu, 25 Feb 2016 14:31:56 +0000 (15:31 +0100)]
rocker: return -ENOMEM in case of some world alloc fails

Until now, 0 is returned in this error case. Fix it ro return -ENOMEM.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
8 years agorocker: forbid to change world type
Jiri Pirko [Thu, 25 Feb 2016 14:31:55 +0000 (15:31 +0100)]
rocker: forbid to change world type

Port to world assignment should be permitted only by qemu user. Driver
should not be able to do it, so forbid that possibility.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
8 years agonet: netmap: probe netmap interface for virtio-net header
Vincenzo Maffione [Wed, 24 Feb 2016 10:30:41 +0000 (11:30 +0100)]
net: netmap: probe netmap interface for virtio-net header

Previous implementation of has_ufo, has_vnet_hdr, has_vnet_hdr_len, etc.
did not really probe for virtio-net header support for the netmap
interface attached to the backend. These callbacks were correct for
VALE ports, but incorrect for hardware NICs, pipes, monitors, etc.

This patch fixes the implementation to work properly with all kinds
of netmap ports.

Signed-off-by: Vincenzo Maffione <v.maffione@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
8 years agonet: simplify net_init_tap_one logic
Paolo Bonzini [Thu, 25 Feb 2016 23:05:57 +0000 (00:05 +0100)]
net: simplify net_init_tap_one logic

net_init_tap_one receives in vhostfdname a fd name from vhostfd= or
vhostfds=, or NULL if there is no vhostfd=/vhostfds=.  It is simpler
to just check vhostfdname, than it is to check for vhostfd= or
vhostfds=.  This also calms down Coverity, which otherwise thinks
that monitor_fd_param could dereference a NULL vhostfdname.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
8 years agoMAINTAINERS: Add entries for include/net/ files
Thomas Huth [Thu, 25 Feb 2016 11:56:24 +0000 (12:56 +0100)]
MAINTAINERS: Add entries for include/net/ files

The include/net/ files correspond to the files in the net/ directory,
thus there should be corresponding entries in the MAINTAINERS file.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
8 years agonet: filter: correctly remove filter from the list during finalization
Jason Wang [Mon, 15 Feb 2016 04:52:34 +0000 (12:52 +0800)]
net: filter: correctly remove filter from the list during finalization

Qemu may crash when we want to add two filters on the same netdev but
the initialization of second fails (e.g missing parameters):

./qemu-system-x86_64 -netdev user,id=un0 \
 -object filter-buffer,id=f0,netdev=un0,interval=10 \
 -object filter-buffer,id=f1,netdev=un0
Segmentation fault (core dumped)

This is because we don't check whether or not the filter was in the
list of netdev. This patch fixes this.

Cc: Yang Hongyang <hongyang.yang@easystack.cn>
Reviewed-by: Yang Hongyang <hongyang.yang@easystack.cn>
Signed-off-by: Jason Wang <jasowang@redhat.com>
8 years agonet: ne2000: check ring buffer control registers
Prasad J Pandit [Wed, 24 Feb 2016 06:11:33 +0000 (11:41 +0530)]
net: ne2000: check ring buffer control registers

Ne2000 NIC uses ring buffer of NE2000_MEM_SIZE(49152)
bytes to process network packets. Registers PSTART & PSTOP
define ring buffer size & location. Setting these registers
to invalid values could lead to infinite loop or OOB r/w
access issues. Add check to avoid it.

Reported-by: Yang Hongke <yanghongke@huawei.com>
Tested-by: Yang Hongke <yanghongke@huawei.com>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
8 years agorng: switch request queue to QSIMPLEQ
Ladi Prosek [Thu, 3 Mar 2016 13:16:11 +0000 (14:16 +0100)]
rng: switch request queue to QSIMPLEQ

QSIMPLEQ supports appending to tail in O(1) and is intrusive so
it doesn't require extra memory allocations for the bookkeeping
data.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Ladi Prosek <lprosek@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Message-Id: <1457010971-24771-1-git-send-email-lprosek@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
8 years agoMerge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
Peter Maydell [Tue, 8 Mar 2016 04:53:36 +0000 (04:53 +0000)]
Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* RAMBlock vs. MemoryRegion cleanups from Fam
* mru_section optimization from Fam
* memory.txt improvements from Peter and Xiaoqiang
* i8257 fix from Hervé
* -daemonize fix
* Cleanups and small fixes from Alex, Praneith, Wei

# gpg: Signature made Mon 07 Mar 2016 17:08:59 GMT using RSA key ID 78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"

* remotes/bonzini/tags/for-upstream:
  scsi-bus: Remove tape command from scsi_req_xfer
  kvm/irqchip: use bitmap utility for gsi tracking
  MAINTAINERS: Add entry for include/sysemu/kvm*.h
  doc/memory.txt: correct description of MemoryRegionOps fields
  doc/memory.txt: correct a logic error
  icount: possible options for sleep are on or off
  exec: Introduce AddressSpaceDispatch.mru_section
  exec: Factor out section_covers_addr
  exec: Pass RAMBlock pointer to qemu_ram_free
  memory: Drop MemoryRegion.ram_addr
  memory: Implement memory_region_get_ram_addr with mr->ram_block
  memory: Move assignment to ram_block to memory_region_init_*
  exec: Return RAMBlock pointer from allocating functions
  i8257: fix Terminal Count status
  log: do not log if QEMU is daemonized but without -D

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agoscsi-bus: Remove tape command from scsi_req_xfer
Alex Pyrgiotis [Mon, 7 Mar 2016 15:50:22 +0000 (15:50 +0000)]
scsi-bus: Remove tape command from scsi_req_xfer

Remove the RECOVER_BUFFERED_DATA command from the list of commands that
are handled by scsi_req_xfer(). Given that this command is
tape-specific, it should be handled only by scsi_stream_req_xfer().

Signed-off-by: Alex Pyrgiotis <apyrgio@arrikto.com>
Message-Id: <1457365822-22435-1-git-send-email-apyrgio@arrikto.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 years agokvm/irqchip: use bitmap utility for gsi tracking
Wei Yang [Sun, 6 Mar 2016 01:57:25 +0000 (01:57 +0000)]
kvm/irqchip: use bitmap utility for gsi tracking

By using utilities in bitops and bitmap, this patch tries to make it more
friendly to audience. No functional change.

Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Message-Id: <1457229445-25954-1-git-send-email-richard.weiyang@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 years agoMAINTAINERS: Add entry for include/sysemu/kvm*.h
Thomas Huth [Thu, 25 Feb 2016 12:33:25 +0000 (13:33 +0100)]
MAINTAINERS: Add entry for include/sysemu/kvm*.h

The include/sysemu/kvm*.h header files should be part of
the overall KVM section.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1456403605-26587-1-git-send-email-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 years agodoc/memory.txt: correct description of MemoryRegionOps fields
Peter Maydell [Fri, 26 Feb 2016 08:40:51 +0000 (16:40 +0800)]
doc/memory.txt: correct description of MemoryRegionOps fields

Probably what happened was that when the API was being designed it
started off with an 'aligned' field, and then later the field name
and semantics were changed but the docs weren't updated to match.

Similarly, cpu_register_io_memory() does not exist anymore, so
clarify the documentation for .old_mmio.

Reported-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 years agodoc/memory.txt: correct a logic error
xiaoqiang zhao [Fri, 26 Feb 2016 08:40:51 +0000 (16:40 +0800)]
doc/memory.txt: correct a logic error

In the regions overlap example, region B has a higher priority thus
should has a larger priority number than C.

Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com>
Message-Id: <1456476051-15121-1-git-send-email-zxq_yx_007@163.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 years agoicount: possible options for sleep are on or off
Pranith Kumar [Fri, 26 Feb 2016 15:16:51 +0000 (10:16 -0500)]
icount: possible options for sleep are on or off

icount sleep takes on or off as options. A few places mention sleep=no
which is not accepted. This patch corrects them.

Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Message-Id: <1456499811-16819-1-git-send-email-bobby.prani@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 years agoexec: Introduce AddressSpaceDispatch.mru_section
Fam Zheng [Tue, 1 Mar 2016 06:18:24 +0000 (14:18 +0800)]
exec: Introduce AddressSpaceDispatch.mru_section

Under heavy workloads the lookup will likely end up with the same
MemoryRegionSection from last time. Using a pointer to cache the result,
like ram_list.mru_block, significantly reduces cost of
address_space_translate.

During address space topology update, as->dispatch will be reallocated
so the pointer is invalidated automatically.

Perf reports a visible drop on the cpu usage, because phys_page_find is
not called.  Before:

   2.35%  qemu-system-x86_64       [.] phys_page_find
   0.97%  qemu-system-x86_64       [.] address_space_translate_internal
   0.95%  qemu-system-x86_64       [.] address_space_translate
   0.55%  qemu-system-x86_64       [.] address_space_lookup_region

After:

   0.97%  qemu-system-x86_64       [.] address_space_translate_internal
   0.97%  qemu-system-x86_64       [.] address_space_lookup_region
   0.84%  qemu-system-x86_64       [.] address_space_translate

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <1456813104-25902-8-git-send-email-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 years agoexec: Factor out section_covers_addr
Fam Zheng [Tue, 1 Mar 2016 06:18:23 +0000 (14:18 +0800)]
exec: Factor out section_covers_addr

This will be shared by the next patch.

Also add a comment explaining the unobvious condition on "size.hi".

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <1456813104-25902-7-git-send-email-famz@redhat.com>
[Small change to the comment. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 years agoexec: Pass RAMBlock pointer to qemu_ram_free
Fam Zheng [Tue, 1 Mar 2016 06:18:22 +0000 (14:18 +0800)]
exec: Pass RAMBlock pointer to qemu_ram_free

The only caller now knows exactly which RAMBlock to free, so it's not
necessary to do the lookup.

Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <1456813104-25902-6-git-send-email-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 years agomemory: Drop MemoryRegion.ram_addr
Fam Zheng [Tue, 1 Mar 2016 06:18:21 +0000 (14:18 +0800)]
memory: Drop MemoryRegion.ram_addr

All references to mr->ram_addr are replaced by
memory_region_get_ram_addr(mr) (except for a few assertions that are
replaced with mr->ram_block).

Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <1456813104-25902-5-git-send-email-famz@redhat.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 years agomemory: Implement memory_region_get_ram_addr with mr->ram_block
Fam Zheng [Tue, 1 Mar 2016 06:18:20 +0000 (14:18 +0800)]
memory: Implement memory_region_get_ram_addr with mr->ram_block

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <1456813104-25902-4-git-send-email-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 years agomemory: Move assignment to ram_block to memory_region_init_*
Fam Zheng [Tue, 1 Mar 2016 06:18:19 +0000 (14:18 +0800)]
memory: Move assignment to ram_block to memory_region_init_*

We don't force "const" qualifiers with pointers in QEMU, but it's still
good to keep a clean function interface. Assigning to mr->ram_block is
in this sense ugly - one initializer mutating its owning object's state.

Move it to memory_region_init_*, where mr->ram_addr is assigned.

Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <1456813104-25902-3-git-send-email-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 years agoexec: Return RAMBlock pointer from allocating functions
Fam Zheng [Tue, 1 Mar 2016 06:18:18 +0000 (14:18 +0800)]
exec: Return RAMBlock pointer from allocating functions

Previously we return RAMBlock.offset; now return the pointer to the
whole structure.

ram_block_add returns void now, error is completely passed with errp.

Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <1456813104-25902-2-git-send-email-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 years agoi8257: fix Terminal Count status
Hervé Poussineau [Thu, 25 Feb 2016 12:45:32 +0000 (13:45 +0100)]
i8257: fix Terminal Count status

When a DMA transfer is done (ie all bytes have been transfered), the corresponding
Terminal Count bit must be set in the status register.
This bit is already cleared in i8257_read_cont and i8257_write_cont when required.

This fixes (at least) floppy transfer in IBM 40p firmware, which checks in DMA
controller if everything went fine.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Message-Id: <1456404332-31556-1-git-send-email-hpoussin@reactos.org>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 years agolog: do not log if QEMU is daemonized but without -D
Paolo Bonzini [Mon, 29 Feb 2016 11:18:40 +0000 (12:18 +0100)]
log: do not log if QEMU is daemonized but without -D

Commit 96c33a4 ("log: Redirect stderr to logfile if deamonized",
2016-02-22) wanted to move stderr of a daemonized QEMU to the file
specified with -D.

However, if -D was not passed, the patch had the side effect of not
redirecting stderr to /dev/null.  This happened because qemu_logfile
was set to stderr rather than the expected value of NULL.  The fix
is simply in the "if" condition of do_qemu_set_log; the "if" for
closing the file is also changed to match.

Reported-by: Jan Tomko <jtomko@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
8 years agoMerge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2016-03-04' into staging
Peter Maydell [Sun, 6 Mar 2016 11:53:27 +0000 (11:53 +0000)]
Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2016-03-04' into staging

QAPI patches for 2016-03-04

# gpg: Signature made Sat 05 Mar 2016 09:47:19 GMT using RSA key ID EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"

* remotes/armbru/tags/pull-qapi-2016-03-04:
  qapi: Drop useless 'data' member of unions
  chardev: Drop useless ChardevDummy type
  qapi: Avoid use of 'data' member of QAPI unions
  ui: Shorten references into InputEvent
  util: Shorten references into SocketAddress
  chardev: Shorten references into ChardevBackend
  qapi: Update docs to match recent generator changes
  qapi-visit: Expose visit_type_FOO_members()
  qapi: Rename 'fields' to 'members' in generated C code
  qapi: Rename 'fields' to 'members' in generator
  qapi-dealloc: Reduce use outside of generated code
  qmp-shell: fix pretty printing of JSON responses

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agoqapi: Drop useless 'data' member of unions
Eric Blake [Thu, 3 Mar 2016 16:16:52 +0000 (09:16 -0700)]
qapi: Drop useless 'data' member of unions

We started moving away from the use of the 'void *data' member
in the C union corresponding to a QAPI union back in commit
544a373; recent commits have gotten rid of other uses.  Now
that it is completely unused, we can remove the member itself
as well as the FIXME comment.  Update the testsuite to drop the
negative test union-clash-data.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1457021813-10704-11-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
8 years agochardev: Drop useless ChardevDummy type
Eric Blake [Fri, 4 Mar 2016 15:42:40 +0000 (08:42 -0700)]
chardev: Drop useless ChardevDummy type

Commit d0d7708b made ChardevDummy be an empty wrapper type around
ChardevCommon.  But there is no technical reason for this indirection,
so simplify the code by directly using the base type.

Also change the fallback assignment to assign u.null rather than
u.data, since a future patch will remove the data member of the C
struct generated for QAPI unions.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1457106160-23614-1-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
8 years agoqapi: Avoid use of 'data' member of QAPI unions
Eric Blake [Thu, 3 Mar 2016 16:16:50 +0000 (09:16 -0700)]
qapi: Avoid use of 'data' member of QAPI unions

QAPI code generators currently create a 'void *data' member as
part of the anonymous union embedded in the C struct corresponding
to a QAPI union.  However, directly assigning to this member of
the union feels a bit fishy, when we can assign to another member
of the struct instead.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1457021813-10704-9-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
8 years agoui: Shorten references into InputEvent
Eric Blake [Thu, 3 Mar 2016 16:16:49 +0000 (09:16 -0700)]
ui: Shorten references into InputEvent

An upcoming patch will alter how simple unions, like InputEvent, are
laid out, which will impact all lines of the form 'evt->u.XXX'
(expanding it to the longer 'evt->u.XXX.data').  For better
legibility in that patch, and less need for line wrapping, it's better
to use a temporary variable to reduce the effect of a layout change to
just the variable initializations, rather than every reference within
an InputEvent.

There was one instance in hid.c:hid_pointer_event() where the code
was referring to evt->u.rel inside the case label where evt->u.abs
is the correct name; thankfully, both members of the union have the
same type, so it happened to work, but it is now cleaner.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1457021813-10704-8-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
8 years agoutil: Shorten references into SocketAddress
Eric Blake [Thu, 3 Mar 2016 16:16:48 +0000 (09:16 -0700)]
util: Shorten references into SocketAddress

An upcoming patch will alter how simple unions, like SocketAddress,
are laid out, which will impact all lines of the form 'addr->u.XXX'
(expanding it to the longer 'addr->u.XXX.data').  For better
legibility in that patch, and less need for line wrapping, it's better
to use a temporary variable to reduce the effect of a layout change to
just the variable initializations, rather than every reference within
a SocketAddress.  Also, take advantage of some C99 initialization where
it makes sense (simplifying g_new0() to g_new()).

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1457021813-10704-7-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
8 years agochardev: Shorten references into ChardevBackend
Eric Blake [Thu, 3 Mar 2016 16:16:47 +0000 (09:16 -0700)]
chardev: Shorten references into ChardevBackend

An upcoming patch will alter how simple unions, like ChardevBackend,
are laid out, which will impact all lines of the form 'backend->u.XXX'
(expanding it to the longer 'backend->u.XXX.data').  For better
legibility in that patch, and less need for line wrapping, it's better
to use a temporary variable to reduce the effect of a layout change to
just the variable initializations, rather than every reference within
a ChardevBackend.  It doesn't hurt that this also makes the code more
consistent: some clients touched here already had a temporary variable
but weren't using it.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-By: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1457021813-10704-6-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
8 years agoqapi: Update docs to match recent generator changes
Eric Blake [Thu, 3 Mar 2016 16:16:46 +0000 (09:16 -0700)]
qapi: Update docs to match recent generator changes

Several commits have been changing the generator, but not updating
the docs to match:
- The implicit tag member is named "type", not "kind".  Screwed up in
commit 39a1815.
- Commit 9f08c8ec made list types lazy, and thereby dropped
UserDefOneList if nothing explicitly uses the list type.
- Commit 51e72bc1 switched the parameter order with 'name' occurring
earlier.
- Commit e65d89bf changed the layout of UserDefOneList.
- Prefer the term 'member' over 'field'.
- We now expose visit_type_FOO_members() for objects.
- etc.

Rework the examples to show slightly more output (we don't want to
show too much; that's what the testsuite is for), and regenerate the
output to match all recent changes.  Also, rearrange output to show
.h files before .c (understanding the interface first often makes
the implementation easier to follow).

Reported-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1457021813-10704-5-git-send-email-eblake@redhat.com>

8 years agoqapi-visit: Expose visit_type_FOO_members()
Eric Blake [Thu, 3 Mar 2016 16:16:45 +0000 (09:16 -0700)]
qapi-visit: Expose visit_type_FOO_members()

Dan Berrange reported a case where he needs to work with a
QCryptoBlockOptions union type using the OptsVisitor, but only
visit one of the branches of that type (the discriminator is not
visited directly, but learned externally).  When things were
boxed, it was easy: just visit the variant directly, which took
care of both allocating the variant and visiting its members, then
store that pointer in the union type.  But now that things are
unboxed, we need a way to visit the members without allocation,
done by exposing visit_type_FOO_members() to the user.

Before the patch, we had quite a bit of code associated with
object_members_seen to make sure that a declaration of the helper
was in scope before any use of the function.  But now that the
helper is public and declared in the header, the .c file no
longer needs to worry about topological sorting (the helper is
always in scope), which leads to some nice cleanups.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1457021813-10704-4-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
8 years agoqapi: Rename 'fields' to 'members' in generated C code
Eric Blake [Thu, 3 Mar 2016 16:16:44 +0000 (09:16 -0700)]
qapi: Rename 'fields' to 'members' in generated C code

C types and JSON objects don't have fields, but members.  We
shouldn't gratuitously invent terminology.  This patch is a
strict renaming of static genarated functions, plus the naming
of the dummy filler member for empty structs, before the next
patch exposes some of that naming to the rest of the code base.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1457021813-10704-3-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
8 years agoqapi: Rename 'fields' to 'members' in generator
Eric Blake [Thu, 3 Mar 2016 16:16:43 +0000 (09:16 -0700)]
qapi: Rename 'fields' to 'members' in generator

C types and JSON objects don't have fields, but members.  We
shouldn't gratuitously invent terminology.  This patch is a
strict renaming of generator code internals (including testsuite
comments), before later patches rename C interfaces.

No change to generated code with this patch.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1457021813-10704-2-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
8 years agoqapi-dealloc: Reduce use outside of generated code
Eric Blake [Tue, 23 Feb 2016 21:14:33 +0000 (14:14 -0700)]
qapi-dealloc: Reduce use outside of generated code

No need to roll our own use of the dealloc visitors when we can
just directly use the qapi_free_FOO() functions that do what we
want in one line.

In net.c, inline net_visit() into its remaining lone caller.

After this patch, test-visitor-serialization.c is the only
non-generated file that needs to use a dealloc visitor, because
it is testing low level aspects of the visitor interface.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1456262075-3311-2-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
8 years agoqmp-shell: fix pretty printing of JSON responses
Daniel P. Berrange [Tue, 23 Feb 2016 10:51:46 +0000 (10:51 +0000)]
qmp-shell: fix pretty printing of JSON responses

Pretty printing of JSON responses is important to be able to understand
large responses from query commands in particular. Unfortunately this
was broken during the addition of the verbose flag in

  commit 1ceca07e48ead0dd2e41576c81d40e6a91cafefd
  Author: John Snow <jsnow@redhat.com>
  Date:   Wed Apr 29 15:14:04 2015 -0400

    scripts: qmp-shell: Add verbose flag

This is because that change turned the python data structure into a
formatted JSON string before the pretty print was given it. So we're
just pretty printing a string, which is a no-op.

The original pretty printer would output python objects.

(QEMU) query-chardev
{   u'return': [   {   u'filename': u'vc',
                       u'frontend-open': False,
                       u'label': u'parallel0'},
                   {   u'filename': u'vc',
                       u'frontend-open': True,
                       u'label': u'serial0'},
                   {   u'filename': u'unix:/tmp/qemp,server',
                       u'frontend-open': True,
                       u'label': u'compat_monitor0'}]}

This fixes the problem by switching to outputting pretty formatted JSON
text instead. This has the added benefit that the pretty printed output
is now valid JSON text. Due to the way the verbose flag was handled, the
pretty printing now applies to the command sent, as well as its response:

(QEMU) query-chardev
{
    "execute": "query-chardev",
    "arguments": {}
}
{
    "return": [
        {
            "frontend-open": false,
            "label": "parallel0",
            "filename": "vc"
        },
        {
            "frontend-open": true,
            "label": "serial0",
            "filename": "vc"
        },
        {
            "frontend-open": true,
            "label": "compat_monitor0",
            "filename": "unix:/tmp/qmp,server"
        }
    ]
}

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1456224706-1591-1-git-send-email-berrange@redhat.com>
Tested-by: Kashyap Chamarthy <kchamart@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
[Bonus fix: multiple -p now work]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
8 years agoMerge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20160304' into...
Peter Maydell [Fri, 4 Mar 2016 11:46:32 +0000 (11:46 +0000)]
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20160304' into staging

target-arm queue:
 * Correct handling of writes to CPSR from gdbstub in user mode
 * virt: lift maximum RAM limit to 255GB
 * sdhci: implement reset
 * virt: if booting in Secure mode, provide secure-only RAM, make first
   flash device secure-only, and assume the EL3 boot rom will handle PSCI
 * bcm2835: use explicit endianness accessors rather than ldl/stl_phys
 * support big-endian in system mode for ARM
 * implement SETEND instruction
 * arm_gic: implement the GICv2 GICC_DIR register
 * fix SRS bug: only trap from S-EL1 to EL3 if specified mode is Mon

# gpg: Signature made Fri 04 Mar 2016 11:38:53 GMT using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>"
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"

* remotes/pmaydell/tags/pull-target-arm-20160304: (30 commits)
  target-arm: Only trap SRS from S-EL1 if specified mode is MON
  hw/intc/arm_gic.c: Implement GICv2 GICC_DIR
  arm: boot: Support big-endian elfs
  loader: Add data swap option to load-elf
  loader: load_elf(): Add doc comment
  loader: add API to load elf header
  target-arm: implement BE32 mode in system emulation
  target-arm: implement setend
  target-arm: introduce tbflag for endianness
  target-arm: a64: Add endianness support
  target-arm: introduce disas flag for endianness
  target-arm: pass DisasContext to gen_aa32_ld*/st*
  target-arm: implement SCTLR.EE
  linux-user: arm: handle CPSR.E correctly in strex emulation
  linux-user: arm: set CPSR.E/SCTLR.E0E correctly for BE mode
  arm: cpu: handle BE32 user-mode as BE
  target-arm: cpu: Move cpu_is_big_endian to header
  target-arm: implement SCTLR.B, drop bswap_code
  linux-user: arm: pass env to get_user_code_*
  linux-user: arm: fix coding style for some linux-user signal functions
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agotarget-arm: Only trap SRS from S-EL1 if specified mode is MON
Ralf-Philipp Weinmann [Fri, 4 Mar 2016 11:30:22 +0000 (11:30 +0000)]
target-arm: Only trap SRS from S-EL1 if specified mode is MON

Commit cbc0326b6fb9 caused SRS instructions executed from Secure
EL1 to trap to EL3 even if the specified mode was not monitor mode.

According to the ARMv8 Architecture reference manual [F6.1.203], ALL
of the following conditions need to be met for SRS to trap to EL3:
* It is executed at Secure PL1.
* The specified mode is monitor mode.
* EL3 is using AArch64.

Correct the condition governing the trap to EL3 to check the
specified mode.

Signed-off-by: Ralf-Philipp Weinmann <ralf+devel@comsecuris.com>
Message-id: 20160222224251.GA11654@beta.comsecuris.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: tweaked comment text to read 'specified mode'; edited
 commit message]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agohw/intc/arm_gic.c: Implement GICv2 GICC_DIR
Peter Maydell [Fri, 4 Mar 2016 11:30:22 +0000 (11:30 +0000)]
hw/intc/arm_gic.c: Implement GICv2 GICC_DIR

The GICv2 introduces a new CPU interface register GICC_DIR, which
allows an OS to split the "priority drop" and "deactivate interrupt"
parts of interrupt completion. Implement this register.
(Note that the register is at offset 0x1000 in the CPU interface,
which means it is on a different 4K page from all the other registers.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Sergey Fedorov <serge.fdrv@gmail.com>
Message-id: 1456854176-7813-1-git-send-email-peter.maydell@linaro.org

8 years agoarm: boot: Support big-endian elfs
Peter Crosthwaite [Fri, 4 Mar 2016 11:30:21 +0000 (11:30 +0000)]
arm: boot: Support big-endian elfs

Support ARM big-endian ELF files in system-mode emulation. When loading
an elf, determine the endianness mode expected by the elf, and set the
relevant CPU state accordingly.

With this, big-endian modes are now fully supported via system-mode LE,
so there is no need to restrict the elf loading to the TARGET
endianness so the ifdeffery on TARGET_WORDS_BIGENDIAN goes away.

Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: fix typo in comments]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agoloader: Add data swap option to load-elf
Peter Crosthwaite [Fri, 4 Mar 2016 11:30:21 +0000 (11:30 +0000)]
loader: Add data swap option to load-elf

Some CPUs are of an opposite data-endianness to other components in the
system. Sometimes elfs have the data sections layed out with this CPU
data-endianness accounting for when loaded via the CPU, so byte swaps
(relative to other system components) will occur.

The leading example, is ARM's BE32 mode, which is is basically LE with
address manipulation on half-word and byte accesses to access the
hw/byte reversed address. This means that word data is invariant
across LE and BE32. This also means that instructions are still LE.
The expectation is that the elf will be loaded via the CPU in this
endianness scheme, which means the data in the elf is reversed at
compile time.

As QEMU loads via the system memory directly, rather than the CPU, we
need a mechanism to reverse elf data endianness to implement this
possibility.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8 years agoloader: load_elf(): Add doc comment
Peter Crosthwaite [Fri, 4 Mar 2016 11:30:21 +0000 (11:30 +0000)]
loader: load_elf(): Add doc comment

Document the usage of load_elf() for clarity on current features.

Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>