Commit Graph

135 Commits

Author SHA1 Message Date
Andreas Färber
a0762859ae log: Change log_cpu_state[_mask]() argument to CPUState
Since commit 878096eeb2 (cpu: Turn
cpu_dump_{state,statistics}() into CPUState hooks) CPUArchState is no
longer needed.

Add documentation and make the functions available through qemu/log.h
outside NEED_CPU_H to allow use in qom/cpu.c. Moving them to qom/cpu.h
was not yet possible due to convoluted include paths, so that some
devices grow an implicit and unneeded dependency on qom/cpu.h for now.

Acked-by: Michael Walle <michael@walle.cc> (for lm32)
Reviewed-by: Richard Henderson <rth@twiddle.net>
[AF: Simplified mb_cpu_do_interrupt() and do_interrupt_all() changes]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09 21:33:04 +02:00
Anthony Liguori
dc11549ec2 pci,misc enhancements
This includes some pci enhancements:
 
 Better support for systems with multiple PCI root buses
 FW cfg interface for more robust pci programming in BIOS
 Minor fixes/cleanups for fw cfg and cross-version migration -
     because of dependencies with other patches
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'mst/tags/for_anthony' into staging

pci,misc enhancements

This includes some pci enhancements:

Better support for systems with multiple PCI root buses
FW cfg interface for more robust pci programming in BIOS
Minor fixes/cleanups for fw cfg and cross-version migration -
    because of dependencies with other patches

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

# gpg: Signature made Sun 07 Jul 2013 03:11:18 PM CDT using RSA key ID D28D5469
# gpg: Can't check signature: public key not found

# By David Gibson (10) and others
# Via Michael S. Tsirkin
* mst/tags/for_anthony:
  pci: Fold host_buses list into PCIHostState functionality
  pci: Remove domain from PCIHostBus
  pci: Simpler implementation of primary PCI bus
  pci: Add root bus parameter to pci_nic_init()
  pci: Add root bus argument to pci_get_bus_devfn()
  pci: Replace pci_find_domain() with more general pci_root_bus_path()
  pci: Use helper to find device's root bus in pci_find_domain()
  pci: Abolish pci_find_root_bus()
  pci: Move pci_read_devaddr to pci-hotplug-old.c
  pci: Cleanup configuration for pci-hotplug.c
  pvpanic: fix fwcfg for big endian hosts
  pvpanic: initialization cleanup
  MAINTAINERS: s/Marcelo/Paolo/
  e1000: cleanup process_tx_desc
  pc_piix: cleanup init compat handling
  pc: pass PCI hole ranges to Guests
  pci: store PCI hole ranges in guestinfo structure
  range: add Range structure

Message-id: 1373228271-31223-1-git-send-email-mst@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-08 08:00:23 -05:00
Paolo Bonzini
5444e768ee add a header file for atomic operations
We're already using them in several places, but __sync builtins are just
too ugly to type, and do not provide seqcst load/store operations.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:49 +02:00
Michael S. Tsirkin
3459a62521 pci: store PCI hole ranges in guestinfo structure
Will be used to pass hole ranges to guests.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-07-04 10:40:56 +03:00
Michael S. Tsirkin
620ac82eb0 range: add Range structure
Sometimes we need to pass ranges around, add a
handy structure for this purpose.

Note: memory.c defines its own concept of AddrRange structure for
working with 128 addresses.  It's necessary there for doing range math.
This is not needed for most users: struct Range is
much simpler, and is only used for passing the range around.

Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-07-04 10:40:56 +03:00
Paolo Bonzini
6046c62086 int128: optimize and add test cases
For add, the carry only requires checking one of the arguments.
For sub and neg, we can similarly optimize computation of the
carry.

For ge, we can just do lexicographic order.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-02 08:17:01 +02:00
Anthony Liguori
8a9c98aedc Merge remote-tracking branch 'afaerber/qom-cpu' into staging
# By Andreas Färber
# Via Andreas Färber
* afaerber/qom-cpu: (24 commits)
  cpu: Turn cpu_unassigned_access() into a CPUState hook
  hwaddr: Make hwaddr type usable beyond softmmu
  cpu: Change qemu_init_vcpu() argument to CPUState
  cpus: Change qemu_dummy_start_vcpu() argument to CPUState
  cpus: Change qemu_kvm_start_vcpu() argument to CPUState
  cpus: Change cpu_handle_guest_debug() argument to CPUState
  gdbstub: Set gdb_set_stop_cpu() argument to CPUState
  kvm: Change kvm_cpu_exec() argument to CPUState
  kvm: Change kvm_handle_internal_error() argument to CPUState
  cpu: Turn cpu_dump_{state,statistics}() into CPUState hooks
  cpus: Change qemu_kvm_init_cpu_signals() argument to CPUState
  kvm: Change kvm_set_signal_mask() argument to CPUState
  cpus: Change qemu_kvm_wait_io_event() argument to CPUState
  cpus: Change cpu_thread_is_idle() argument to CPUState
  cpu: Change cpu_exit() argument to CPUState
  kvm: Change cpu_synchronize_state() argument to CPUState
  kvm: Change kvm_cpu_synchronize_state() argument to CPUState
  gdbstub: Simplify find_cpu()
  cpu: Guard cpu_{save,load}() definitions
  target-openrisc: Register VMStateDescription for OpenRISCCPU
  ...
2013-06-28 11:48:09 -05:00
Andreas Färber
878096eeb2 cpu: Turn cpu_dump_{state,statistics}() into CPUState hooks
Make cpustats monitor command available unconditionally.

Prepares for changing kvm_handle_internal_error() and kvm_cpu_exec()
arguments to CPUState.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28 13:25:12 +02:00
Stefan Hajnoczi
5dae8e5fb8 notify: add NotiferWithReturn so notifier list can abort
notifier_list_notify() has no return value.  This is fine when we just
want to invoke side-effects.

Sometimes it's useful for notifiers to produce a return value.  This
allows notifiers to "veto" an operation and will be used by the block
layer before-write notifier.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-06-28 09:20:26 +02:00
Stefan Weil
87e613ea9e audio: Replace static functions in header file by macros, remove GCC_ATTR
Using macros instead of static functions for dolog and for ldebug
simplifies the code and can also reduce the total code size.

GCC_ATTR was only used in audio_int.h, so it is now unused and
the definition can be removed from compiler.h.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-06-21 22:52:50 +04:00
Paolo Bonzini
052e87b073 memory: make section size a 128-bit integer
So far, the size of all regions passed to listeners could fit in 64 bits,
because artificial regions (containers and aliases) are eliminated by
the memory core, leaving only device regions which have reasonable sizes

An IOMMU however cannot be eliminated by the memory core, and may have
an artificial size, hence we may need 65 bits to represent its size.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-20 16:32:47 +02:00
Markus Armbruster
a86b35f992 qemu-option: check_params() is now unused, drop it
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Message-id: 1371208516-7857-3-git-send-email-armbru@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-19 14:10:42 -05:00
Markus Armbruster
f3eededb2f log.h: Supply missing includes
<stdio.h> has always been missing.  Rest missed in commit eeacee4.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Laszlo "ever the optimist" Ersek <lersek@redhat.com>
Message-id: 1370610036-10577-3-git-send-email-armbru@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-14 08:58:57 -05:00
Markus Armbruster
b293796fd7 error-report.h: Supply missing include
Missed in commit e5924d8.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Laszlo "ever the optimist" Ersek <lersek@redhat.com>
Message-id: 1370610036-10577-2-git-send-email-armbru@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-14 08:58:56 -05:00
Andreas Färber
6d4d3ae77d memory_mapping: Move MemoryMappingList typedef to qemu/typedefs.h
This will avoid issues with hwaddr and ram_addr_t when including
sysemu/memory_mapping.h for CONFIG_USER_ONLY, e.g., from qom/cpu.h.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-11 17:58:03 +02:00
Anthony Liguori
e47dccc64b pci: misc cleanups
This includes some pci-related cleanups,
 and fw cfg cleanups which will be useful for on-going
 pci related work.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'mst/tags/for_anthony' into staging

pci: misc cleanups

This includes some pci-related cleanups,
and fw cfg cleanups which will be useful for on-going
pci related work.

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

# gpg: Signature made Sun 02 Jun 2013 02:46:52 PM CDT using RSA key ID D28D5469
# gpg: Can't check signature: public key not found

# By Michael S. Tsirkin (8) and Laszlo Ersek (1)
# Via Michael S. Tsirkin
* mst/tags/for_anthony:
  pvpanic: use FWCfgState explicitly
  fw_cfg: fw_cfg is a singleton
  fw_cfg: add API to find FW cfg object
  fw_cfg: move typedef to qemu/typedefs.h
  refer to FWCfgState explicitly
  apic: rename apic specific bitopts
  firmware_abi: move to include/hw/nvram/
  dec.c - move to pci-bridge
  q35: set fw_name

Message-id: 1370202787-3712-1-git-send-email-mst@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-04 09:26:29 -05:00
Michael S. Tsirkin
45936c8b79 fw_cfg: move typedef to qemu/typedefs.h
Less header dependencies this way.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-06-02 18:14:14 +03:00
Laszlo Ersek
e2ea3515a9 osdep: add qemu_get_local_state_pathname()
This function returns ${prefix}/var/RELATIVE_PATHNAME on POSIX-y systems,
and <CSIDL_COMMON_APPDATA>/RELATIVE_PATHNAME on Win32.

http://msdn.microsoft.com/en-us/library/bb762494.aspx

  [...] This folder is used for application data that is not user
  specific. For example, an application can store a spell-check
  dictionary, a database of clip art, or a log file in the
  CSIDL_COMMON_APPDATA folder. [...]

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2013-05-30 11:37:37 -05:00
Michael Tokarev
997aba8e25 remove some double-includes
Some source files #include the same header more than
once for no good reason.  Remove second #includes in
such cases.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-05-18 16:35:12 +04:00
Paolo Bonzini
e7a09b92b7 osdep: introduce qemu_anon_ram_free to free qemu_anon_ram_alloc-ed memory
We switched from qemu_memalign to mmap() but then we don't modify
qemu_vfree() to do a munmap() over free().  Which we cannot do
because qemu_vfree() frees memory allocated by qemu_{mem,block}align.

Introduce a new function that does the munmap(), luckily the size is
available in the RAMBlock.

Reported-by: Amos Kong <akong@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Amos Kong <akong@redhat.com>
Message-id: 1368454796-14989-3-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-14 08:53:31 -05:00
Paolo Bonzini
6eebf958ab osdep, kvm: rename low-level RAM allocation functions
This is preparatory to the introduction of a separate freeing API.

Reported-by: Amos Kong <akong@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Amos Kong <akong@redhat.com>
Message-id: 1368454796-14989-2-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-05-14 08:53:31 -05:00
Igor Mitsyanko
98b2d199c1 osdep.h: include sys/types.h for ssize_t definition
sys/types.h is taken out from "ifdef __OpenBSD__" guard. It should be
safe for other systems, according to following survey:
http://hacks.owlfolio.org/header-survey/

This fixes build for CONFIG_IOVEC-less systems (mingw).

Signed-off-by: Igor Mitsyanko <i.mitsyanko@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-05-12 13:25:55 +04:00
Jeff Cody
8e1b02b8ef qemu: add castagnoli crc32c checksum algorithm
This adds the Castagnoli CRC32C algorithm, using the 0x11EDC6F41
polynomial.

This is extracted from the linux kernel cryptographic crc32.c module.

The algorithm is based on:

Castagnoli93: Guy Castagnoli and Stefan Braeuer and Martin Herrman
             "Optimization of Cyclic Redundancy-Check Codes with 24
              and 32 Parity Bits", IEEE Transactions on Communication,
              Volume 41, Number 6, June 1993

Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-05-03 10:31:58 +02:00
Paolo Bonzini
9adea5f7f7 win32: add readv/writev emulation
Commit e9d8fbf (qemu-file: do not use stdio for qemu_fdopen, 2013-03-27)
introduced a usage of writev, which mingw32 does not have.  Even though
qemu_fdopen itself is not used on mingw32, the future-proof solution is
to add an implementation of it.  This is simple and similar to how we
emulate sendmsg/recvmsg in util/iov.c.

Some files include osdep.h without qemu-common.h, so move the definition
of iovec to osdep.h too, and include osdep.h from qemu-common.h
unconditionally (protection against including files when NEED_CPU_H is
defined is not needed since the removal of AREG0).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-29 10:52:36 +02:00
Ed Maste
e4dcd8ace1 Remove unnecessary FreeBSD #include
sys/param.h was included to define __FreeBSD_version, but the conditional
using it was removed by commit d05ef16045
(Brad Smith, "Allow clock_gettime() monotonic clock to be utilized on more
OS's"), so the include is no longer needed here.

Signed-off-by: Ed Maste <emaste@freebsd.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1366906631-2680-1-git-send-email-emaste@freebsd.org
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-25 14:45:46 -05:00
Anthony Liguori
6165daa4c8 Merge remote-tracking branch 'bonzini/scsi-next' into staging
# By Paolo Bonzini (5) and others
# Via Paolo Bonzini
* bonzini/scsi-next:
  vhost-scsi-s390: new device supporting the tcm_vhost Linux kernel module
  vhost-scsi-ccw: new device supporting the tcm_vhost Linux kernel module
  vhost-scsi-pci: new device supporting the tcm_vhost Linux kernel module
  vhost-scsi: new device supporting the tcm_vhost Linux kernel module
  virtio: simplify Makefile conditionals
  virtio-scsi: create VirtIOSCSICommon
  vhost: Add vhost_commit callback for SeaBIOS ROM region re-mapping
  scsi: VMWare PVSCSI paravirtual device implementation
  scsi: avoid assertion failure on VERIFY command

Message-id: 1366381460-6041-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-22 08:05:05 -05:00
Paolo Bonzini
292c8e50d5 virtio-scsi: create VirtIOSCSICommon
This patch refactors existing virtio-scsi code into VirtIOSCSICommon
in order to allow virtio_scsi_init_common() to be used by both internal
virtio_scsi_init() and external vhost-scsi-pci code.

Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Asias He <asias@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-19 16:17:56 +02:00
Alexey Kardashevskiy
ea44910eef bswap: fix compiler warning
The bswap functions use memcpy but the bswap.h header itself does not seem to
include it in some configuration such as cross compiling for powerpc64
on x86_64 machine.

The patch explicitly includes string.h.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-04-19 11:28:22 +02:00
Paolo Bonzini
b421d9c6ab memory: move core typedefs to qemu/typedefs.h
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-15 18:19:26 +02:00
Paolo Bonzini
dccfcd0e5f sysemu: avoid proliferation of include/ subdirectories
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-15 18:19:25 +02:00
Aurelien Jarno
5d6f5cdd8a aes: make Td[0-5] and Te[0-5] tables non static
Remove static attribute to Td[0-5] and Te[0-5] tables so that they
can be used outside of aes.c. Change their type from u32 to uint32_t,
to keep the u32 udef local to aes.c. Prefix them with AES_ so that they
do not conflict with other symbols.

Reviewed-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2013-04-13 13:51:57 +02:00
Aurelien Jarno
753d9b82c5 aes: move aes.h from include/block to include/qemu
Move aes.h from include/block to include/qemu to show it can be reused
by other subsystems.

Cc: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2013-04-13 13:51:57 +02:00
Brad Smith
d05ef16045 Allow clock_gettime() monotonic clock to be utilized on more OS's
Allow the clock_gettime() code using monotonic clock to be utilized on
more POSIX compliannt OS's. This started as a fix for OpenBSD which was
listed in one function as part of the previous hard coded list of OS's
for the functions to support but not in the other.

Signed-off-by: Brad Smith <brad@comstyle.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20130405003748.GH884@rox.home.comstyle.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-04 20:22:45 -05:00
Stefan Hajnoczi
f9e8cacc55 oslib-posix: rename socket_set_nonblock() to qemu_set_nonblock()
The fcntl(fd, F_SETFL, O_NONBLOCK) flag is not specific to sockets.
Rename to qemu_set_nonblock() just like qemu_set_cloexec().

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-04-02 11:47:37 -04:00
Paolo Bonzini
99835e0084 compiler: fix warning with GCC 4.8.0
GCC 4.8.0 introduces a new warning:

    block/qcow2-snapshot.c: In function 'qcow2_write_snapshots’:
    block/qcow2-snapshot.c:252:18: error: typedef 'qemu_build_bug_on__253'
              locally defined but not used [-Werror=unused-local-typedefs]
         QEMU_BUILD_BUG_ON(offsetof(QCowHeader, snapshots_offset) !=
                  ^
    cc1: all warnings being treated as errors

(Caret diagnostics aren't perfect yet with macros... :)) Work around it
with __attribute__((unused)).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1364391272-1128-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-27 10:10:14 -05:00
Kevin Wolf
f17c90bed1 nbd: Keep hostname and port separate
The NBD block supports an URL syntax, for which a URL parser returns
separate hostname and port fields. It also supports the traditional qemu
syntax encoded in a filename. Until now, after parsing the URL to get
each piece of information, a new string is built to be fed to socket
functions.

Instead of building a string in the URL case that is immediately parsed
again, parse the string in both cases and use the QemuOpts interface to
qemu-sockets.c.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2013-03-22 17:51:31 +01:00
Kevin Wolf
e62be8888a qemu-socket: Make socket_optslist public
Allow other users to create the QemuOpts needed for inet_connect_opts().

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2013-03-22 17:51:31 +01:00
Stefan Hajnoczi
5f3aa1ff47 main-loop: add qemu_get_aio_context()
It is very useful to get the main loop AioContext, which is a static
variable in main-loop.c.

I'm not sure whether qemu_get_aio_context() will be necessary in the
future once devices focus on using their own AioContext instead of the
main loop AioContext, but for now it allows us to refactor code to
support multiple AioContext while actually passing the main loop
AioContext.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2013-03-15 16:07:50 +01:00
Kevin Wolf
376609cc6c qemu-option: Add qemu_opts_absorb_qdict()
This adds a function that adds all entries of a QDict to a QemuOpts if
the keys are known, and leaves only the rest in the QDict.

This way a single QDict of -drive options can be processed in multiple
places (generic block layer, block driver, backing file block driver,
etc.), where each part picks the options it knows. If at the end of the
process the QDict isn't empty, the user specified an invalid option.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-03-15 16:07:49 +01:00
Gerd Hoffmann
3ecc059dcd chardev: add udp support to qapi
This patch adds 'udp' support to qapi.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-03-13 10:27:46 +01:00
Stefan Berger
4549a8b7ee Add a TPM Passthrough backend driver implementation
This patch is based of off version 9 of Stefan Berger's patch series
  "QEMU Trusted Platform Module (TPM) integration"
and adds a new backend driver for it.

This patch adds a passthrough backend driver for passing commands sent to the
emulated TPM device directly to a TPM device opened on the host machine.
Thus it is possible to use a hardware TPM device in a system running on QEMU,
providing the ability to access a TPM in a special state (e.g. after a Trusted
Boot).

This functionality is being used in the acTvSM Trusted Virtualization Platform
which is available on [1].

Usage example:
  qemu-system-x86_64 -tpmdev passthrough,id=tpm0,path=/dev/tpm0 \
                     -device tpm-tis,tpmdev=tpm0 \
                     -cdrom test.iso -boot d

Some notes about the host TPM:
The TPM needs to be enabled and activated. If that's not the case one
has to go through the BIOS/UEFI and enable and activate that TPM for TPM
commands to work as expected.
It may be necessary to boot the kernel using tpm_tis.force=1 in the boot
command line or 'modprobe tpm_tis force=1' in case of using it as a module.

Regards,
Andreas Niederl, Stefan Berger

[1] http://trustedjava.sourceforge.net/

Signed-off-by: Andreas Niederl <andreas.niederl@iaik.tugraz.at>
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
Reviewed-by: Joel Schopp <jschopp@linux.vnet.ibm.com>
Message-id: 1361987275-26289-6-git-send-email-stefanb@linux.vnet.ibm.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-12 13:40:55 -05:00
Paolo Bonzini
13c7b2da07 qemu-file: check exit status when closing a pipe QEMUFile
This is what exec_close does.  Move this to the underlying QEMUFile.

Reviewed-by: Orit Wasserman <owasserm@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-03-11 13:32:02 +01:00
Paolo Bonzini
52e850dea9 block-migration: add lock
Some state is shared between the block migration code and its AIO
callbacks.  Once block migration will run outside the iothread,
the block migration code and the AIO callbacks will be able to
run concurrently.  Protect the critical sections with a separate
lock.  Do the same for completed_sectors, which can be used from
the monitor.

Reviewed-by: Orit Wasserman <owasserm@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-03-11 13:32:01 +01:00
Anthony Liguori
6e72a00f90 Merge remote-tracking branch 'bonzini/hw-dirs' into staging
* bonzini/hw-dirs:
  sh: move files referencing CPU to hw/sh4/
  ppc: move more files to hw/ppc
  ppc: move files referencing CPU to hw/ppc/
  m68k: move files referencing CPU to hw/m68k/
  i386: move files referencing CPU to hw/i386/
  arm: move files referencing CPU to hw/arm/
  hw: move boards and other isolated files to hw/ARCH
  ppc: express FDT dependency of pSeries and e500 boards via default-configs/
  build: always link device_tree.o into emulators if libfdt available
  hw: include hw header files with full paths
  ppc: do not use ../ in include files
  vt82c686: vt82c686 is not a PCI host bridge
  virtio-9p: remove PCI dependencies from hw/9pfs/
  virtio-9p: use CONFIG_VIRTFS, not CONFIG_LINUX
  hw: move device-hotplug.o to toplevel, compile it once
  hw: move qdev-monitor.o to toplevel directory
  hw: move fifo.[ch] to libqemuutil
  hw: move char backends to backends/

Conflicts:
	backends/baum.c
	backends/msmouse.c
	hw/a15mpcore.c
	hw/arm/Makefile.objs
	hw/arm/pic_cpu.c
	hw/dataplane/event-poll.c
	hw/dataplane/virtio-blk.c
	include/char/baum.h
	include/char/msmouse.h
	qemu-char.c
	vl.c

Resolve conflicts caused by header movements.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-10 19:56:35 -05:00
MORITA Kazutaka
bf1c852aa9 move socket_set_nodelay to osdep.c
Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-03-04 09:54:17 +01:00
Paolo Bonzini
fd7f0d6617 hw: move fifo.[ch] to libqemuutil
fifo.c is generic code that can be easily unit tested.  So it
belongs in libqemuutil.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-03-01 13:53:10 +01:00
Peter Maydell
989b697ddd qemu-log: default to stderr for logging output
Switch the default for qemu_log logging output from "/tmp/qemu.log"
to stderr. This is an incompatible change in some sense, but logging
is mostly used for debugging purposes so it shouldn't affect production
use. The previous behaviour can be obtained by adding "-D /tmp/qemu.log"
to the command line.

This change requires us to:
 * update all the documentation/help text (we take the opportunity
   to smooth out minor inconsistencies between the phrasing in
   linux-user/bsd-user/system help messages)
 * make linux-user and bsd-user defer to qemu-log for the default
   logging destination rather than overriding it themselves
 * ensure that all logfile closing is done via qemu_log_close()
   and that that function doesn't close stderr
as well as the obvious change to the behaviour of do_qemu_set_log()
when no logfile name has been specified.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1361901160-28729-1-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-02-26 13:31:47 -06:00
Peter Maydell
632314c49c qemu-log: Remove qemu_log_try_set_file() and its users
Remove the function qemu_log_try_set_file() and its users (which
are all in TCG code generation functions for various targets).
This function was added to abstract out code which was originally
written as "if (!logfile) logfile = stderr;" in order that BUG:
case code which did an unguarded "fprintf(logfile, ...)" would
not crash if debug logging was not enabled. Since those direct
uses of logfile have also been abstracted away into qemu_log()
calls which check for a NULL logfile, there is no need for the
target-* files to mess with the user's chosen logging settings.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Acked-by: Michael Walle <michael@walle.cc>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-02-23 09:42:14 +00:00
Stefan Hajnoczi
a3e4b4a809 iohandler: switch to GPollFD
Convert iohandler_select_fill() and iohandler_select_poll() to use
GPollFD instead of rfds/wfds/xfds.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-id: 1361356113-11049-7-git-send-email-stefanha@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-02-21 16:17:31 -06:00
Richard Henderson
f540166b7d host-utils: Use __int128_t for mul[us]64
Replace some x86_64 specific inline assembly with something that
all 64-bit hosts ought to optimize well.  At worst this becomes
a call to the gcc __multi3 routine, which is no worse than our
implementation in util/host-utils.c.

With gcc 4.7, we get identical code generation for x86_64.  We
now get native multiplication on ia64 and s390x hosts.  With minor
improvements to gcc we can get it for ppc64 as well.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-02-17 14:28:57 +00:00