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12 years agokvm tools: Use correct config defines
Sasha Levin [Wed, 9 Nov 2011 14:42:20 +0000 (16:42 +0200)]
kvm tools: Use correct config defines

For some reason some of the defines were set to HAS_VIRTIO instead of HAS_AIO.

This broke raw blk device.

Reported-and-tested-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Remove async flag from QCOW
Sasha Levin [Wed, 9 Nov 2011 12:00:49 +0000 (14:00 +0200)]
kvm tools: Remove async flag from QCOW

QCOW disk image async flag was erroneously enabled, while QCOW doesn't support
async ops yet.

This has caused a hang when booting QCOW images.

Reported-and-tested-by: Richard -rw- Weinberger <richard.weinberger@gmail.com>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Add missing 9p rename handler
Sasha Levin [Mon, 7 Nov 2011 15:54:12 +0000 (17:54 +0200)]
kvm tools: Add missing 9p rename handler

This adds a rename handler which actually allows us to rename files in the
guest.

Reported-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Add missing 9p remove handler
Sasha Levin [Mon, 7 Nov 2011 15:54:11 +0000 (17:54 +0200)]
kvm tools: Add missing 9p remove handler

This adds a remove handler which actually allows us to unlink files in the
guest.

Reported-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokconfig: Update 'make kvmconfig'
Sasha Levin [Sat, 5 Nov 2011 04:36:31 +0000 (06:36 +0200)]
kconfig: Update 'make kvmconfig'

Adds missing deps.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Fix VESA BIOS mode info
Cyrill Gorcunov [Fri, 4 Nov 2011 06:48:06 +0000 (10:48 +0400)]
kvm tools: Fix VESA BIOS mode info

Some VGA data such as VESA info needs a proper tuning for addresses
passed on kernel requests.  We returned linear addresses there while
spec points out that far pointers are needed.

This fixes a long-standing issue that caused Linux kernel to never exit
the mode scanning loop in arch/x86/boot/video-vesa.c::vesa_probe()
because returned mode info table segment/offset pair was bogus. The
issue triggered on some machines when CONFIG_FB_VESA was disabled.

Also use already VESA structures defined in <boot/vesa.h> header now
that we no longer use the struct to store VESA BIOS data.

Reported-by: Pekka Enberg <penberg@kernel.org>
CC: Sasha Levin <levinsasha928@gmail.com>
CC: Ingo Molnar <mingo@elte.hu>
CC: Asias He <asias.hejun@gmail.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
[ penberg@kernel.org: minor cleanups to setup_vga_rom() ]
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agoconfig: Add 'make kvmconfig'
Sasha Levin [Thu, 27 Oct 2011 12:07:14 +0000 (14:07 +0200)]
config: Add 'make kvmconfig'

This patch adds 'make kvmconfig' which allows to add KVM guest support
to a config file.

This allows for easier testing of configurations under virtualized
environments.

Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: <linux-kbuild@vger.kernel.org>
Cc: <linux-kernel@vger.kernel.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Michal Marek <mmarek@suse.cz>
Suggested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Use native vectored AIO in virtio-blk
Sasha Levin [Wed, 2 Nov 2011 05:41:14 +0000 (07:41 +0200)]
kvm tools: Use native vectored AIO in virtio-blk

This patch hooks AIO support into virtio-blk, allowing for faster IO.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
[ penberg@kernel.org: wrap libaio include with CONFIG_HAS_AIO ]
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Add aio read write functions
Sasha Levin [Wed, 2 Nov 2011 05:41:13 +0000 (07:41 +0200)]
kvm tools: Add aio read write functions

This patch adds basic native vectored AIO functions.

These functions should be optimized to process multiple io
requests at once.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Hook virtio-blk completion to disk op completion
Sasha Levin [Wed, 2 Nov 2011 05:41:12 +0000 (07:41 +0200)]
kvm tools: Hook virtio-blk completion to disk op completion

This patch connects the completion processing in virtio-blk to the completion
notification coming from disk image.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Split io request from completion
Sasha Levin [Wed, 2 Nov 2011 05:41:11 +0000 (07:41 +0200)]
kvm tools: Split io request from completion

This patch splits IO request processing from completion notification.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Remove qcow nowrite function
Sasha Levin [Wed, 2 Nov 2011 05:41:10 +0000 (07:41 +0200)]
kvm tools: Remove qcow nowrite function

It is no longer needed due to previous changes.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Add optional callback on disk op completion
Sasha Levin [Wed, 2 Nov 2011 05:41:09 +0000 (07:41 +0200)]
kvm tools: Add optional callback on disk op completion

This patch adds an optional callback to be called when a disk op completes.

Currently theres not much use for it, but it is the infrastructure for adding
aio support.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Modify behaviour on missing ops ptr
Sasha Levin [Wed, 2 Nov 2011 05:41:08 +0000 (07:41 +0200)]
kvm tools: Modify behaviour on missing ops ptr

In case a read or write op ptr is missing simply ignore it instead of
critically failing. This provides an easier way to prevent read or write
in specific scenarios.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Modify disk ops usage
Sasha Levin [Wed, 2 Nov 2011 05:41:07 +0000 (07:41 +0200)]
kvm tools: Modify disk ops usage

This patch modifies the definition and usage of ops for read only, mmap and
regular IO.

There is no longer a mix between iov and mmap, and read only no longer implies
mmap (although it will try to use it first).

This allows for more flexibility defining different ops for different
scenarios.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Remove the non-iov interface from disk image ops
Sasha Levin [Wed, 2 Nov 2011 05:41:06 +0000 (07:41 +0200)]
kvm tools: Remove the non-iov interface from disk image ops

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Switch to using an enum for disk image types
Sasha Levin [Wed, 2 Nov 2011 05:41:05 +0000 (07:41 +0200)]
kvm tools: Switch to using an enum for disk image types

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Remove dead code virt_queue__trigger_irq()
Asias He [Mon, 31 Oct 2011 14:39:42 +0000 (22:39 +0800)]
kvm tools: Remove dead code virt_queue__trigger_irq()

This function is not used anymore. Instead, We are using
virtio_pci__signal_vq() to trigger interrupt right now.

Signed-off-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Fix ndev mutex and condition variable initialization
Asias He [Mon, 31 Oct 2011 14:39:41 +0000 (22:39 +0800)]
kvm tools: Fix ndev mutex and condition variable initialization

This patch fixes the initialization of the following variables:

   ndev->io_tx_lock
   ndev->io_rx_lock
   ndev->io_tx_cond
   ndev->io_rx_cond

Signed-off-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Fix a vertical indentation for net/uip/udp.c
Asias He [Mon, 31 Oct 2011 14:39:40 +0000 (22:39 +0800)]
kvm tools: Fix a vertical indentation for net/uip/udp.c

Signed-off-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Use macro in uip_tx_do_ipv4()
Asias He [Mon, 31 Oct 2011 14:39:39 +0000 (22:39 +0800)]
kvm tools: Use macro in uip_tx_do_ipv4()

Use marcro instead of magic number in uip_tx_do_ipv4()

Signed-off-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Drop unused variable in struct uip_buf
Asias He [Mon, 31 Oct 2011 14:39:38 +0000 (22:39 +0800)]
kvm tools: Drop unused variable in struct uip_buf

'u32 payload' is not used, so drop it.

Signed-off-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Cleanup ghost socket files
Sasha Levin [Fri, 28 Oct 2011 09:01:55 +0000 (11:01 +0200)]
kvm tools: Cleanup ghost socket files

Clean ghost socket files as part of the regular connection process.

This fixes the bug of 'kvm list' failing with "Failed connecting to instance"
when ghost socket files existed.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Handle only relevant events in epoll
Sasha Levin [Fri, 28 Oct 2011 09:01:54 +0000 (11:01 +0200)]
kvm tools: Handle only relevant events in epoll

Handle only new incoming data for listener and stop fds, treat all other
events as error events which close the socket.

This fixes the bug where a 'kvm list' could have hanged because a close
event in the listener fd have been treated as a new connection.

Cc: Osier Yang <jyang@redhat.com>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Fix MSI-X table size set up
Asias He [Thu, 27 Oct 2011 13:14:33 +0000 (21:14 +0800)]
kvm tools: Fix MSI-X table size set up

We at most have VIRTIO_PCI_MAX_VQ entries for virt queue,
VIRTIO_PCI_MAX_CONFIG entries for config.

To quote the PCI spec:

    System software reads this field to determine the
    MSI-X Table Size N, which is encoded as N-1.
    For example, a returned value of "00000000011"
    indicates a table size of 4.

So, we should set table size to

    VIRTIO_PCI_MAX_VQ + VIRTIO_PCI_MAX_CONFIG - 1

not

    VIRTIO_PCI_MAX_VQ + VIRTIO_PCI_MAX_CONFIG

Acked-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Set correct virtio pci device class code
Asias He [Thu, 27 Oct 2011 12:47:28 +0000 (20:47 +0800)]
kvm tools: Set correct virtio pci device class code

All the virtio pci device is set to class code 0x010000, this is wrong.
This patch sets the correct class code and makes lspci report correct
class type. For example, the net device:

Before:
$ lspci
00:03.0 SCSI storage controller: Red Hat, Inc Virtio network device

After:
$ lspci
00:03.0 Ethernet controller: Red Hat, Inc Virtio network device

Acked-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Beautify kvm list output
Osier Yang [Wed, 26 Oct 2011 06:02:11 +0000 (14:02 +0800)]
kvm tools: Beautify kvm list output

With the patch, output of "kvm list" will be:

% ./kvm list
   PID NAME                 STATE
------------------------------------
 5270 test                 running
      test                 shut off
      default              shut off

"not running" is changed into "shut off", as it might
be other states which are "not running" in future? such
as "paused".

Signed-off-by: Osier Yang <jyang@redhat.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Use ARRAY_SIZE helper to count serial devices
Cyrill Gorcunov [Thu, 27 Oct 2011 06:35:17 +0000 (10:35 +0400)]
kvm tools: Use ARRAY_SIZE helper to count serial devices

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Fix kvm__set_dir() to include trailing slash
Pekka Enberg [Wed, 26 Oct 2011 14:12:51 +0000 (17:12 +0300)]
kvm tools: Fix kvm__set_dir() to include trailing slash

All of our code expects kvm__get_dir() to return a path with a trailing slash.
This fixes "kvm run" and "kvm setup" making directories such as
"$HOME/.kvmtoolsdefault" for guest rootfs.

Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Fix 'kvm run' when run the first time
Pekka Enberg [Tue, 25 Oct 2011 20:53:14 +0000 (23:53 +0300)]
kvm tools: Fix 'kvm run' when run the first time

The realpath() function returns NULL if directory does not exists. This patch
changes kvm__set_dir() to call mkdir() to make sure the directory is there.
This fixes 'kvm run' breakage when run the very first time.

Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Avoid overwriting socket files with same name
Sasha Levin [Tue, 25 Oct 2011 13:21:49 +0000 (15:21 +0200)]
kvm tools: Avoid overwriting socket files with same name

This patch prevents overwriting socket files by running two instances with
the same name.

Reported-by: Osier Yang <jyang@redhat.com>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Improve "kvm list" default output
Pekka Enberg [Tue, 25 Oct 2011 12:20:09 +0000 (15:20 +0300)]
kvm tools: Improve "kvm list" default output

This patch changes 'kvm list' default output to look as follows:

  [penberg@tux kvm]$ ./kvm list
    PID GUEST
   8156 guest-8156
        default (not running)
        test-box (not running)

Acked-by: Cyrill Gorcunov <gorcunov@gmail.com>
Acked-by: Sasha Levin <levinsasha928@gmail.com>
Cc: Asias He <asias.hejun@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Improve "kvm setup" info and error messages
Pekka Enberg [Tue, 25 Oct 2011 11:59:55 +0000 (14:59 +0300)]
kvm tools: Improve "kvm setup" info and error messages

This patch improves the output of 'kvm setup' as follows:

  [penberg@tux kvm]$ ./kvm setup

  kvm setup creates a new rootfs under /home/penberg//.kvm-tools/.
  This can be used later by the '-d' parameter of 'kvm run'.

   usage: kvm setup [name]

  [penberg@tux kvm]$ ./kvm setup test-box
  A new rootfs 'test-box' has been created in '/home/penberg//.kvm-tools/test-box'.

  You can now start it by running the following command:

    kvm run -d test-box

  [penberg@tux kvm]$ ./kvm setup test-box
  Unable to create rootfs in /home/penberg//.kvm-tools/test-box: File exists

Acked-by: Cyrill Gorcunov <gorcunov@gmail.com>
Acked-by: Sasha Levin <levinsasha928@gmail.com>
Cc: Asias He <asias.hejun@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Kill double slash from kvm__get_dir()
Pekka Enberg [Tue, 25 Oct 2011 12:09:02 +0000 (15:09 +0300)]
kvm tools: Kill double slash from kvm__get_dir()

In preparation for showing kvm__get_dir() path to the user, kill the
unnecessary double slash to make the output more readable.

Acked-by: Cyrill Gorcunov <gorcunov@gmail.com>
Acked-by: Sasha Levin <levinsasha928@gmail.com>
Cc: Asias He <asias.hejun@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Fix SDL exit on window close
Sasha Levin [Tue, 25 Oct 2011 11:46:47 +0000 (13:46 +0200)]
kvm tools: Fix SDL exit on window close

We've changed IPC to use sockets instead of signals, but the process of
closing the SDL window was still trigerring an exit signal causing
an ugly message and not cleaning up after itself.

This patch switches that to use the proper method of cleaning up.

Reported-by: Osier Yang <jyang@redhat.com>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Add method to stop ipc thread
Sasha Levin [Tue, 25 Oct 2011 11:30:53 +0000 (13:30 +0200)]
kvm tools: Add method to stop ipc thread

Stop the ipc thread when shutting down the hypervisor.

This solves a bug where the .sock files weren't removed upon shutdown.

Reported-by: Osier Yang <jyang@redhat.com>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Simplify msi message handling
Sasha Levin [Mon, 24 Oct 2011 08:23:34 +0000 (11:23 +0300)]
kvm tools: Simplify msi message handling

This patch simplifies passing around msi messages by using
'struct kvm_irq_routing_msi' for storing of msi messages instead
of passing all msi parameters around.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools, bios: Don't include glibc headers
Pekka Enberg [Sun, 23 Oct 2011 07:03:19 +0000 (10:03 +0300)]
kvm tools, bios: Don't include glibc headers

We should not include glibc headers from BIOS code which can't rely on glibc at
runtime.

This patch fixes the following build breakage on 64-bit:

    CC       bios/e820.o
  In file included from /usr/include/features.h:387:0,
                   from /usr/include/unistd.h:26,
                   from include/kvm/util.h:12,
                   from bios/e820.c:5:
  /usr/include/gnu/stubs.h:7:27: fatal error: gnu/stubs-32.h: No such file or directory compilation terminated.
  make: *** [bios/bios.bin.elf] Error 1

when built without the 'glibc-devel.i686' package on Fedora, for example.

Cc: Asias He <asias.hejun@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Sasha Levin <levinsasha928@gmail.com>
Acked-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Allow piping debug output to file descriptor
Sasha Levin [Fri, 21 Oct 2011 10:24:58 +0000 (12:24 +0200)]
kvm tools: Allow piping debug output to file descriptor

This patch makes debug output go to a 'debug_fd' instead of stdout.

Doing so allows us to send the output to a different console when
required.

This patch also changes the behaviour of 'kvm debug' to show the debug
output in the console that executed the debug command instead of in the
console of the guest.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Move memory stat print to client
Sasha Levin [Sun, 16 Oct 2011 19:57:55 +0000 (21:57 +0200)]
kvm tools: Move memory stat print to client

So far we were printing memory statistics in the terminal of the guest,
this was annoying, confusing and inneficient.

This patch moves the print to the terminal which ran 'kvm stat'

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Switch to using UNIX sockets instead of signals
Sasha Levin [Sun, 16 Oct 2011 19:57:54 +0000 (21:57 +0200)]
kvm tools: Switch to using UNIX sockets instead of signals

This patch changes the IPC method to use UNIX sockets instead of
signals.

This allows for more flexibility in moving data between processes, for example
it would allow avoid printing output in the terminal of the guest.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Disable stack protector for BIOS code
Pekka Enberg [Tue, 18 Oct 2011 16:52:29 +0000 (19:52 +0300)]
kvm tools: Disable stack protector for BIOS code

This pach fixes the following build breakage on Ubuntu Linux, for example,
which enables GCC stack protector by default:

  CC       bios/int10.o
bios/int10.o: In function `vbe_get_info':
/home/penberg/linux-2.6/tools/kvm/bios/int10.c:120: undefined reference to `__stack_chk_fail'

Suggested-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools, bios: Fix BIOS to kernel memory copy
Pekka Enberg [Fri, 30 Sep 2011 15:53:48 +0000 (18:53 +0300)]
kvm tools, bios: Fix BIOS to kernel memory copy

This patch implements memcpy16() function that copies memory areas in 16-bit
real mode and converts bios/int10.c to use it instead of relying on GCC struct
memcpy to do the right thing.

Acked-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Asias He <asias.hejun@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Use kvm__get_dir() helper function
Pekka Enberg [Sun, 16 Oct 2011 18:22:49 +0000 (21:22 +0300)]
kvm tools: Use kvm__get_dir() helper function

This patch adds a kvm__get_dir() helper function that replaces open-coded uses
of HOME_DIR and KVM_PID_FILE_PATH.

Cc: Asias He <asias.hejun@gmail.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Use HOME_DIR and KVM_PID_FILE_PATH from <kvm/kvm.h>
Pekka Enberg [Sun, 16 Oct 2011 18:22:49 +0000 (21:22 +0300)]
kvm tools: Use HOME_DIR and KVM_PID_FILE_PATH from <kvm/kvm.h>

This patch removes duplicate defines from builtin-setup.c.

Cc: Asias He <asias.hejun@gmail.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Add support for the read operation of qcow and qcow2 compressed image
Lan Tianyu [Wed, 12 Oct 2011 13:00:03 +0000 (21:00 +0800)]
kvm tools: Add support for the read operation of qcow and qcow2 compressed image

This patch adds the decompression operation when confirming the qcow or
qcow2 image is compressed. This patch also divides the read cluster
fucntion into two which are respective for qcow and qcow2 in order to be
convenient to support these two kind images. Add some macros for qcow.

Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
[ penberg@kernel.org: make zlib optional ]
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Enable fast string operations
Sasha Levin [Fri, 14 Oct 2011 07:36:09 +0000 (09:36 +0200)]
kvm tools: Enable fast string operations

Recent kernels check for MSR_IA32_MISC_ENABLE_FAST_STRING in the
MSR_IA32_MISC_ENABLE MSR before enabling reps/movs memcpy.

So far we didn't set it, and got a slower memcpy and a warning:

[    0.000000] Disabled fast string operations

This patch enables fast string operations.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Add option to list rootfs in 'kvm list'
Sasha Levin [Thu, 13 Oct 2011 09:32:46 +0000 (11:32 +0200)]
kvm tools: Add option to list rootfs in 'kvm list'

Previously we would only list running instances, now that we create
rootfs instances it's appropriate to add a method to list them as
well.

Suggested-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Modify 'kvm setup' parameters
Sasha Levin [Thu, 13 Oct 2011 09:32:45 +0000 (11:32 +0200)]
kvm tools: Modify 'kvm setup' parameters

This patch makes the name as the default parameter, this makes usability
easier since this is the only parameter available at the moment anyway.

Suggested-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Add help and info messages to 'kvm setup'
Sasha Levin [Thu, 13 Oct 2011 09:32:44 +0000 (11:32 +0200)]
kvm tools: Add help and info messages to 'kvm setup'

Suggested-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Add basic help when starting 'kvm' without args
Sasha Levin [Thu, 13 Oct 2011 09:32:43 +0000 (11:32 +0200)]
kvm tools: Add basic help when starting 'kvm' without args

Suggested-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Improve compat message
Sasha Levin [Thu, 13 Oct 2011 09:32:42 +0000 (11:32 +0200)]
kvm tools: Improve compat message

Suggested-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Use compat message per device instead of per instance
Sasha Levin [Thu, 13 Oct 2011 09:32:41 +0000 (11:32 +0200)]
kvm tools: Use compat message per device instead of per instance

This prevents multiple messages for the same type of device.

Suggested-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Fix spelling mistake
Sasha Levin [Thu, 13 Oct 2011 09:32:40 +0000 (11:32 +0200)]
kvm tools: Fix spelling mistake

Suggested-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Move segment_to_flat() to kvm/segment.h
Pekka Enberg [Fri, 30 Sep 2011 15:37:59 +0000 (18:37 +0300)]
kvm tools: Move segment_to_flat() to kvm/segment.h

Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools, sdl: Fix "5" key
Alessandro Guido [Thu, 29 Sep 2011 12:59:19 +0000 (14:59 +0200)]
kvm tools, sdl: Fix "5" key

Use the right set2 scancode for the "5" key.

Signed-off-by: Alessandro Guido <ag@alessandroguido.name>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: NULL-terminate init env
Pekka Enberg [Thu, 29 Sep 2011 14:31:16 +0000 (17:31 +0300)]
kvm tools: NULL-terminate init env

This patch fixes 'kvm run' rootfs boot failures:

  Starting '/bin/sh'...
  Init failed: Bad address

Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Support multiple net devices
Sasha Levin [Wed, 28 Sep 2011 05:45:55 +0000 (08:45 +0300)]
kvm tools: Support multiple net devices

This patch adds support for multiple network devices. The command line syntax
changes to the following:

--network/-n [mode=tap/user/none][,guest_ip=ip][,host_ip=
ip][,guest_mac=mac][,script=file]

Each of the parameters is optional, and the config defaults to a TAP based
networking with a sequential MAC.

Acked-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Fix up build instructions on Fedora
Pekka Enberg [Tue, 27 Sep 2011 14:12:47 +0000 (17:12 +0300)]
kvm tools: Fix up build instructions on Fedora

Fix up build instructions so that people can build the tool on fresh
installation of Fedora.

Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: Set active console before running /bin/sh
Sasha Levin [Tue, 27 Sep 2011 13:03:47 +0000 (16:03 +0300)]
kvm tools: Set active console before running /bin/sh

This patch sets active console to the serial console before running the
shell. Doing so fixes two issues:

* Fix job control.

* Set all env vars.

The user visible issues are less warnings (no more of this:
  sh: cannot set terminal process group (-1): Inappropriate ioctl for device
  sh: no job control in this shell)

A working 'top', and a working ctrl-c.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools, ui: Add some missing key codes
Alessandro Guido [Mon, 26 Sep 2011 11:12:12 +0000 (13:12 +0200)]
kvm tools, ui: Add some missing key codes

Add some missing keys to the SDL ui. This needed a bit of rework of
keyboard event handling since some of the new codes are multi-byte,
so I had to introduce a struct that keeps that information alongside
the code itself. Peculiar cases like PAUSE or PRNT SCRN are special
cased, however they aren't wired yet since I couldn't test them (I think
input grabbing is required to make them work).

Acked-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Alessandro Guido <ag@alessandroguido.name>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agokvm tools: don't use custom strtoul for hex numbers
Andy Shevchenko [Fri, 23 Sep 2011 14:53:44 +0000 (17:53 +0300)]
kvm tools: don't use custom strtoul for hex numbers

Cc: kvm@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Clear presence of performance-energy bias bit
Cyrill Gorcunov [Sun, 18 Sep 2011 07:33:33 +0000 (11:33 +0400)]
kvm tools: Clear presence of performance-energy bias bit

In case if host machine supports performance-energy bias
capability it should not be propagated to KVM hypervisor.

Otherwise the kernel tries to do read MSR_IA32_ENERGY_PERF_BIAS
register and cause kernel panic (general protection fault).

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Document steps to debug kernel using KGDB
Sasha Levin [Mon, 19 Sep 2011 11:05:56 +0000 (14:05 +0300)]
kvm tools: Document steps to debug kernel using KGDB

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
13 years agokvm tools: Fix INTx handling
Sasha Levin [Mon, 19 Sep 2011 10:40:45 +0000 (13:40 +0300)]
kvm tools: Fix INTx handling

Since we didn't raise the ISR INTx interrupts were sometimes ignored by
the guest. This caused hangs on boot when starting a guest without MSIX
support.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
13 years agokvm tools: Use correct subsys id in virtio-pci
Sasha Levin [Sun, 18 Sep 2011 18:25:51 +0000 (21:25 +0300)]
kvm tools: Use correct subsys id in virtio-pci

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
13 years agokvm tools: Use host's resolv.conf within the guest
Sasha Levin [Wed, 14 Sep 2011 16:28:26 +0000 (19:28 +0300)]
kvm tools: Use host's resolv.conf within the guest

Since kernel IP autoconfiguration doesn't set up /etc/resolv.conf, we'll
use the one located within the host, since this was anyway what we simulated
within the DHCP offer packets.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
13 years agokvm tools: Don't copy network autoconfiguration script
Sasha Levin [Wed, 14 Sep 2011 16:28:25 +0000 (19:28 +0300)]
kvm tools: Don't copy network autoconfiguration script

Network autoconfiguration was moved to the kernel, but the setup code still
tried to copy the script over to the rootfs. This prevented from /virt/ to
be properly created.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
13 years agokvm tools: Allow remapping guest TTY into host PTS
Sasha Levin [Fri, 16 Sep 2011 08:49:13 +0000 (11:49 +0300)]
kvm tools: Allow remapping guest TTY into host PTS

This patch adds the '-tty' option to 'kvm run' which allows the user to
remap a guest TTY into a PTS on the host.

Usage:
        'kvm run --tty [id]'

The tty will be mapped to a pts and will be printed on the screen:
        '  Info: Assigned terminal 1 to pty /dev/pts/X'

At this point, it is possible to communicate with the guest using that pty.

This is useful for debugging guest kernel using KGDB:

1. Run the guest:
        'kvm run -k [vmlinuz] -p "kgdboc=ttyS1 kgdbwait" --tty 1'

And see which PTY got assigned to ttyS1.

2. Run GDB on the host:
        'gdb [vmlinuz]'

3. Connect to the guest (from within GDB):
        'target remote /dev/pty/X'

4. Start debugging! (enter 'continue' to continue boot).

Cc: David Evensky <evensky@dancer.ca.sandia.gov>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
13 years agokvm tools: Don't use i8042 AUX port
Sasha Levin [Wed, 14 Sep 2011 07:24:53 +0000 (10:24 +0300)]
kvm tools: Don't use i8042 AUX port

We are enabling i8042 even without VNC or SDL so that we could use it's
reset method to reboot the guest.

AUX port might cause delays during boot. Disable it if the user didn't ask
for VNC or SDL.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Use kernel dhcp for network autoconfiguration
Sasha Levin [Wed, 14 Sep 2011 07:11:09 +0000 (10:11 +0300)]
kvm tools: Use kernel dhcp for network autoconfiguration

This patch removes the manual/usermode dhcp client configuration and instead
uses the DHCP client built within the kernel.

Since this client is tightly integrated with NFS (if NFS config is set), we
will add a specific NFS root addr in our DHCP offer to point it to a non
existent address so that we won't hang trying to poke it for our root.

Acked-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Fix 32bit build errors
Sasha Levin [Wed, 14 Sep 2011 08:17:27 +0000 (11:17 +0300)]
kvm tools: Fix 32bit build errors

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: remove addr_type - unused but set variable
Hagen Paul Pfeifer [Wed, 7 Sep 2011 18:48:37 +0000 (20:48 +0200)]
kvm tools: remove addr_type - unused but set variable

Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net>
Cc: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Fix compat message formatting
Sasha Levin [Mon, 12 Sep 2011 17:25:29 +0000 (20:25 +0300)]
kvm tools: Fix compat message formatting

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Modify 'kvm run' to use virt fs
Sasha Levin [Mon, 12 Sep 2011 17:25:28 +0000 (20:25 +0300)]
kvm tools: Modify 'kvm run' to use virt fs

'kvm run' will now create a 'default' profile and boot into it.

Currently we boot into rw rootfs of the host, which is risky. Instead,
we can boot in a 'safe' enviroment with networking.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Add guestfs network autoconfiguration
Sasha Levin [Mon, 5 Sep 2011 23:23:55 +0000 (02:23 +0300)]
kvm tools: Add guestfs network autoconfiguration

Add a script to automatically configure networking in the guest.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Teach 'run' to handle guestfs
Sasha Levin [Mon, 5 Sep 2011 23:23:54 +0000 (02:23 +0300)]
kvm tools: Teach 'run' to handle guestfs

This patch allows to run previously created guestfs by simply specifying it
with the '-d' parameter.

This allows running guestfs which were created before using:

kvm setup -n [name]

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Attach default 'root=' only if required
Sasha Levin [Mon, 5 Sep 2011 23:23:53 +0000 (02:23 +0300)]
kvm tools: Attach default 'root=' only if required

This patch fixes a case where the 'root=' parameter was passed twice
when using virtio-9p root mode.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Fix 32bit warnings
Sasha Levin [Mon, 5 Sep 2011 23:23:52 +0000 (02:23 +0300)]
kvm tools: Fix 32bit warnings

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Remove unconditional warning in ivshmem
Sasha Levin [Mon, 5 Sep 2011 23:23:51 +0000 (02:23 +0300)]
kvm tools: Remove unconditional warning in ivshmem

This patch prevents printing a warning if ivshmem device wasn't requested.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Add ivshmem device
Sasha Levin [Mon, 29 Aug 2011 12:25:00 +0000 (15:25 +0300)]
kvm tools: Add ivshmem device

The patch adds an ivshmem device which can be used to share memory between
guests on the same host.

This implementation is lacking inter-guest communication which should be
implemented later once information regarding the client-server protocol is
gathered, though infrastructure used to add and remove clients already exists
in the patch (but isn't used anywhere).

Patch is based on David Evansky's shmem device.

Original-patch-by: David Evensky <evensky@sandia.gov>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools, setup: Create private directory
Hagen Paul Pfeifer [Wed, 24 Aug 2011 22:26:23 +0000 (00:26 +0200)]
kvm tools, setup: Create private directory

If ~/.kvm-tools is not already created all successive mkdir calls will fail.
Fix this by create the directory explicitly.

Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools, setup: Create /tmp in guest filesystems
Pekka Enberg [Wed, 24 Aug 2011 15:25:04 +0000 (18:25 +0300)]
kvm tools, setup: Create /tmp in guest filesystems

Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Introduce 'kvm setup' command
Pekka Enberg [Wed, 24 Aug 2011 13:23:38 +0000 (16:23 +0300)]
kvm tools: Introduce 'kvm setup' command

This patch implements 'kvm setup' command that can be used to setup a guest
filesystem that shares system libraries and binaries from host filesystem in
read-only mode.

You can setup a new shared rootfs guest with:

  ./kvm setup -n default

and launch it with:

  ./kvm run --9p /,hostfs -p "init=virt/init" -d ~/.kvm-tools/default/

We want to teach 'kvm run' to be able to launch guest filesystems by name in
the future. Furthermore, 'kvm run' should setup a 'default' filesystem and use
it by default unless the user specifies otherwise.

Cc: Asias He <asias.hejun@gmail.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: MSI-X fixes
Sasha Levin [Tue, 23 Aug 2011 19:28:53 +0000 (22:28 +0300)]
kvm tools: MSI-X fixes

Several fixes in this patch:

* Don't ignore function level and per-vector masking. We're not
supposed to signal when masked and not doing so will improve
performance a bit (in addition to behaving correctly).

* Implement the missing PBA array. 'lspci -vv' will now show the correct
output:
Capabilities: [40] MSI-X: Enable+ Count=5 Masked-
Vector table: BAR=1 offset=00000000
PBA: BAR=3 offset=00000000

* Checking whether MSI-X is enabled or not is done by probing the
corresponding bit within the PCI header instead of trying to track
the status ourselves.

* Fallback to INTx if MSI-X isn't enabled.

* Use correct max size for MSI-X table.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Add entry to MAINTAINERS file
Pekka Enberg [Wed, 24 Aug 2011 14:51:08 +0000 (17:51 +0300)]
kvm tools: Add entry to MAINTAINERS file

Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Separate pci layer out of virtio-console
Sasha Levin [Wed, 24 Aug 2011 09:09:10 +0000 (12:09 +0300)]
kvm tools: Separate pci layer out of virtio-console

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Move ioeventfd registration to virtio-pci
Sasha Levin [Wed, 24 Aug 2011 09:09:09 +0000 (12:09 +0300)]
kvm tools: Move ioeventfd registration to virtio-pci

This patch removed ioeventfd registration from devices and moves it
to a single place in virtio-pci layer.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools, 9p: Fix walk to prepare correct path name
Aneesh Kumar K.V [Mon, 22 Aug 2011 09:35:34 +0000 (15:05 +0530)]
kvm tools, 9p: Fix walk to prepare correct path name

Fix walk operation with multiple names.

Acked-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools, 9p: Implement 9p2000.L extensions
Aneesh Kumar K.V [Mon, 22 Aug 2011 09:35:33 +0000 (15:05 +0530)]
kvm tools, 9p: Implement 9p2000.L extensions

This patch implement dotl protocol for the server. 9p2000.L enables better
interop with Linux client and offers larger set of features.

Acked-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Separate virtio-pci layer out of virtio-blk
Sasha Levin [Mon, 22 Aug 2011 12:58:18 +0000 (15:58 +0300)]
kvm tools: Separate virtio-pci layer out of virtio-blk

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Separate virtio-pci layer out of virtio-9p
Sasha Levin [Mon, 22 Aug 2011 12:58:17 +0000 (15:58 +0300)]
kvm tools: Separate virtio-pci layer out of virtio-9p

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Separate virtio-pci layer out of virtio-balloon
Sasha Levin [Mon, 22 Aug 2011 12:58:16 +0000 (15:58 +0300)]
kvm tools: Separate virtio-pci layer out of virtio-balloon

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Separate virtio-pci layer out of virtio-net
Sasha Levin [Mon, 22 Aug 2011 12:58:15 +0000 (15:58 +0300)]
kvm tools: Separate virtio-pci layer out of virtio-net

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Separate virtio-pci layer out of virtio-rng
Sasha Levin [Mon, 22 Aug 2011 12:58:14 +0000 (15:58 +0300)]
kvm tools: Separate virtio-pci layer out of virtio-rng

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Separate virtio-pci layer
Sasha Levin [Mon, 22 Aug 2011 12:58:13 +0000 (15:58 +0300)]
kvm tools: Separate virtio-pci layer

This patch builds a virtio-pci layer which can be used by virtio
devices as a layer to interact with virtio-pci. The purpose of the
patch is to separate the common virtio-pci layer from being replicated
in all virtio devices.

The new layer provides a callback interface to receive information about
virtio events.

This allows us to share the entire functionality of virtio-pci throughout all
virtio devices, for example - we don't need to implement MSI-X for each device
and can just do it once for virtio-pci.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Fix offset calculation for config space and MSI-X
Sasha Levin [Sun, 21 Aug 2011 10:16:35 +0000 (13:16 +0300)]
kvm tools: Fix offset calculation for config space and MSI-X

This patch makes offsets for virtio config space and MSI-X dynamic.

The change should fix the wrong usage of MSI-X space as virtio
config space.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Add helper to retrieve the field used in virtio config space
Sasha Levin [Sun, 21 Aug 2011 10:16:34 +0000 (13:16 +0300)]
kvm tools: Add helper to retrieve the field used in virtio config space

This patch adds a helper used to retrieve the type of field used when guest
is writing or reading from virtio config space.

Since the config space is dynamic, it may change during runtime - so we must
calculate it before every read/write.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Add guest compatability warning to virtio-balloon
Sasha Levin [Thu, 18 Aug 2011 12:18:37 +0000 (15:18 +0300)]
kvm tools: Add guest compatability warning to virtio-balloon

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
13 years agokvm tools: Add guest compatability warning to virtio-console
Sasha Levin [Thu, 18 Aug 2011 12:18:36 +0000 (15:18 +0300)]
kvm tools: Add guest compatability warning to virtio-console

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>