Commit Graph

31260 Commits

Author SHA1 Message Date
qiaonuohan
4ab23a9182 Define the architecture for compressed dump format
Signed-off-by: Ekaterina Tumanova <tumanova@linux.vnet.ibm.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28 11:52:03 -05:00
qiaonuohan
b53ccc30c4 dump: make kdump-compressed format available for 'dump-guest-memory'
Make monitor command 'dump-guest-memory' be able to dump in kdump-compressed
format. The command's usage:

  dump [-p] protocol [begin] [length] [format]

'format' is used to specified the format of vmcore and can be:
1. 'elf': ELF format, without compression
2. 'kdump-zlib': kdump-compressed format, with zlib-compressed
3. 'kdump-lzo': kdump-compressed format, with lzo-compressed
4. 'kdump-snappy': kdump-compressed format, with snappy-compressed
Without 'format' being set, it is same as 'elf'. And if non-elf format is
specified, paging and filter is not allowed.

Note:
  1. The kdump-compressed format is readable only with the crash utility and
     makedumpfile, and it can be smaller than the ELF format because of the
     compression support.
  2. The kdump-compressed format is the 6th edition.

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28 11:52:03 -05:00
qiaonuohan
d12f57ec66 dump: add API to write dump pages
functions are used to write page to vmcore. vmcore is written page by page.
page desc is used to store the information of a page, including a page's size,
offset, compression format, etc.

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28 11:52:03 -05:00
qiaonuohan
64cfba6a47 dump: add APIs to operate DataCache
DataCache is used to store data temporarily, then the data will be written to
vmcore. These functions will be called later when writing data of page to
vmcore.

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28 11:52:03 -05:00
qiaonuohan
d0686c7291 dump: add API to write dump_bitmap
functions are used to write 1st and 2nd dump_bitmap of kdump-compressed format,
which is used to indicate whether the corresponded page is existed in vmcore.
1st and 2nd dump_bitmap are same, because dump level is specified to 1 here.

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28 11:52:03 -05:00
qiaonuohan
298f116827 dump: add API to write dump header
the functions are used to write header of kdump-compressed format to vmcore.
Header of kdump-compressed format includes:
1. common header: DiskDumpHeader32 / DiskDumpHeader64
2. sub header: KdumpSubHeader32 / KdumpSubHeader64
3. extra information: only elf notes here

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28 11:52:03 -05:00
qiaonuohan
7aad248d35 dump: add members to DumpState and init some of them
add some members to DumpState that will be used in writing vmcore in
kdump-compressed format. some of them, like page_size, will be initialized
in the patch.

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28 11:52:03 -05:00
qiaonuohan
607dacd0a0 dump: add support for lzo/snappy
kdump-compressed format supports three compression format, zlib/lzo/snappy.
Currently, only zlib is available. This patch is used to support lzo/snappy.
'--enable-lzo/--enable-snappy' is needed to be specified with configure to make
lzo/snappy available for qemu

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28 11:52:03 -05:00
qiaonuohan
4835ef7784 dump: add API to write elf notes to buffer
the function can be used by write_elf32_notes/write_elf64_notes to write notes
to a buffer. If fd_write_vmcore is used, write_elf32_notes/write_elf64_notes
will write elf notes to vmcore directly. Instead, if buf_write_note is used,
elf notes will be written to opaque->note_buf at first.

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28 11:49:02 -05:00
qiaonuohan
5d31babe5c dump: add API to write vmcore
Function is used to write vmcore in flatten format. In flatten format, data is
written block by block, and in front of each block, a struct
MakedumpfileDataHeader is stored there to indicate the offset and size of the
data block.

struct MakedumpfileDataHeader {
    int64_t offset;
    int64_t buf_size;
};

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28 11:49:02 -05:00
qiaonuohan
fda053875e dump: add API to write header of flatten format
flatten format will be used when writing kdump-compressed format. The format is
also used by makedumpfile, you can refer to the following URL to get more
detailed information about flatten format of kdump-compressed format:
http://sourceforge.net/projects/makedumpfile/

The two functions here are used to write start flat header and end flat header
to vmcore, and they will be called later when flatten format is used.

struct MakedumpfileHeader stored at the head of vmcore is used to indicate the
vmcore is in flatten format.

struct MakedumpfileHeader {
    char signature[16];     /* = "makedumpfile" */
    int64_t type;           /* = 1 */
    int64_t version;        /* = 1 */
};

And struct MakedumpfileDataHeader, with offset and buf_size set to -1, is used
to indicate the end of vmcore in flatten format.

struct MakedumpfileDataHeader {
    int64_t offset;         /* = -1 */
    int64_t buf_size;       /* = -1 */
};

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28 11:49:02 -05:00
qiaonuohan
6a519918b3 dump: add argument to write_elfxx_notes
write_elf32_notes/wirte_elf64_notes use fd_write_vmcore to write elf notes to
vmcore. Adding parameter "WriteCoreDumpFunction f" makes it available to choose
the method of writing elf notes

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28 11:49:02 -05:00
qiaonuohan
b5ba1cc626 dump: const-qualify the buf of WriteCoreDumpFunction
WriteCoreDumpFunction is a function pointer that points to the function used to
write content in "buf" into core file, so "buf" should be const-qualify.

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28 11:49:02 -05:00
Richard Henderson
cb48da7f81 target-i386: Fix ucomis and comis memory access
We were loading 16 bytes for both single and double-precision
scalar comparisons.

Reported-by: Alexander Bluhm <bluhm@openbsd.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-02-28 08:44:26 -08:00
Richard Henderson
4e47e39ab0 target-i386: Fix SSE status flag corruption
When we restore the mxcsr register with FXRSTOR, or set it with gdb,
we need to update the various SSE status flags in CPUX86State

Reported-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-02-28 08:44:01 -08:00
Richard Henderson
d2fe51bda8 target-i386: Fix CC_OP_CLR vs PF
Parity should be set for a zero result.

Cc: qemu-stable@nongnu.org
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-02-28 08:43:15 -08:00
Luiz Capitulino
fbb0621a0f MAINTAINERS: update status for HMP, QAPI and QMP trees
This commit updates the status for the HMP, QAPI and QMP trees from
"Supported" to "Maintained".

In practice this means that patch review and pull requests may take
longer. Also, I'll rely more on reviewers such as Eric Blake so that
I'm able to send pull requests regularly.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28 11:41:43 -05:00
Fam Zheng
cd159d0954 QMP: Allow dot separated dict path arguments in qmp-shell
As another convenience to allow using commands that expect a dict as
argument, this patch adds support for foo.bar=value syntax, similar to
command line argument style:

  (QEMU) blockdev-add options.driver=file options.id=drive1 options.filename=...

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-28 11:41:43 -05:00
Fam Zheng
d844a7b656 modules: Fix building with --enable-modules
Compiling util/modules.c with modules enabled fails now.

Fix it by including qemu-common.h before #ifdef testing in module.c.

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-id: 1393453893-12125-1-git-send-email-famz@redhat.com
Reviewed-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-28 12:30:13 +00:00
Peter Maydell
9fbee91a13 Merge remote-tracking branch 'remotes/kvm/uq/master' into staging
* remotes/kvm/uq/master:
  KVM: Use return value for error print

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-27 16:00:31 +00:00
Peter Maydell
73795cea96 Updates include:
- Coverify fixes for vfio & pci-assign (Markus)
  - VFIO blacklisting support for known brokwn PCI option ROMs (Bandan)
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Merge remote-tracking branch 'remotes/awilliam/tags/vfio-pci-for-qemu-20140226.0' into staging

Updates include:
 - Coverify fixes for vfio & pci-assign (Markus)
 - VFIO blacklisting support for known brokwn PCI option ROMs (Bandan)

# gpg: Signature made Wed 26 Feb 2014 18:15:28 GMT using RSA key ID 3BB08B22
# gpg: Can't check signature: public key not found

* remotes/awilliam/tags/vfio-pci-for-qemu-20140226.0:
  vfio: blacklist loading of unstable roms
  qdev-monitor: set DeviceState opts before calling realize
  pci-assign: Fix potential read beyond buffer on -EBUSY
  vfio: Fix overrun after readlink() fills buffer completely

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-27 11:31:52 +00:00
Mark Cave-Ayland
af87bf290f sun4m: Add Sun CG3 framebuffer initialisation function
In order to allow the user to choose the framebuffer for sparc-softmmu, add
-vga tcx and -vga cg3 options to the QEMU command line. If no option is
specified, the default TCX framebuffer is used.

Since proprietary FCode ROMs use a resolution of 1152x900, slightly relax the
validation rules to allow both displays to be initiated at the higher
resolution used by these ROMs upon request (OpenBIOS FCode ROMs default to
the normal QEMU sun4m default resolution of 1024x768).

Finally move any fprintf(stderr ...) statements in the areas affected by this
patch over to the new error_report() function.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
CC: Blue Swirl <blauwirbel@gmail.com>
CC: Anthony Liguori <aliguori@amazon.com>
CC: Peter Maydell <peter.maydell@linaro.org>
CC: Bob Breuer <breuerr@mc.net>
CC: Artyom Tarasenko <atar4qemu@gmail.com>
2014-02-27 10:01:41 +00:00
Mark Cave-Ayland
9eb08a435a sun4m: Add Sun CG3 framebuffer and corresponding OpenBIOS FCode ROM
The CG3 framebuffer is a simple 8-bit framebuffer for use with operating
systems such as early Solaris that do not have drivers for TCX.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
CC: Blue Swirl <blauwirbel@gmail.com>
CC: Anthony Liguori <aliguori@amazon.com>
CC: Peter Maydell <peter.maydell@linaro.org>
CC: Bob Breuer <breuerr@mc.net>
CC: Artyom Tarasenko <atar4qemu@gmail.com>
2014-02-27 10:01:41 +00:00
Mark Cave-Ayland
ead4cf04f8 sun4m: fix slavio timer RUN/STOP bit
The sun4m architecture has one 'system' timer and one timer per CPU.
The CPU timers can be configured in two modes:

  * 22 bits Counter/Timer. Periodic interrupts.
  * 54 bits User timer. For profiling. In this mode, the Run/Stop bit
    controls the timer.

The run/stop bit controls the timer only when it is in "User" mode, but
its state shall be persistent.

Signed-off-by: Olivier Danet <odanet@caramail.com>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2014-02-27 10:01:41 +00:00
Mark Cave-Ayland
f9681f116c sun4m: Set HostID in NVRAM
On SparcStations, the HostID field in the NVRAM is equal to the last
three bytes of the MAC address (which is also stored in the NVRAM).

This constant is used as an identification/serial number on Solaris.

Signed-off-by: Olivier Danet <odanet@caramail.com>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2014-02-27 10:01:40 +00:00
Thomas Huth
7f00eb30fe s390x/ipl: Fix crash of ELF images with arbitrary entry points
When loading S390 kernels, the current code expects an ELF file with the
start address 0x10000. Other ELF files cause a segmentation fault. To avoid
these crashes, we should get the start address from the ELF file instead
of always using a hard-coded address.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27 09:51:26 +01:00
Frank Blaschka
1eecf41b3e s390x/kvm: Rework priv instruction handlers
The current implementation uses the second byte of the instruction
to identify the instruction handler. This is not sufficient to
support instructions not starting with 0xb2. This patch
adds separate handlers for 0xb2, 0xb9 and 0xeb to be able to
support the full instruction set.

Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27 09:51:26 +01:00
Thomas Huth
04c2b5168e s390x/kvm: Add missing SIGP CPU RESET order
The SIGP order CPU RESET was still missing in the list of our
supported handler. This patch now adds a simple implementation,
by using the cpu_reset() function that is already available in
target-s390x/cpu.c.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27 09:51:26 +01:00
Thomas Huth
f7d3e46676 s390x/kvm: Rework SIGP INITIAL CPU RESET handler
The s390_cpu_initial_reset() function had two deficiencies: First, it
used an ioctl for the destination CPU, and this ioctl could block
nearly forever, as long as the destination CPU was running in the SIE
loop. Second, it also cleared the general purpose registers - something
it should not do according to the Principles of Operations.
Since we've already got another function for the initial CPU reset in
cpu.c, we can also use that function instead. And by using run_on_cpu()
for executing this code, we make sure that the destination CPU is
correctly kicked out of kernel mode now.

Suggested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27 09:51:26 +01:00
Thomas Huth
49f5c9e98a s390x/cpu: Use ioctl to reset state in the kernel
Some of the state in the kernel can not be reset from QEMU yet.
For this we've got to use the KVM_S390_INITIAL_RESET ioctl to make
sure that the state in the kernel is set to the right values during
initial CPU reset, too.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27 09:51:26 +01:00
Christian Borntraeger
0ca3611221 s390-ccw.img: new binary rom to match latest fixes
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27 09:51:26 +01:00
Christian Borntraeger
5d739a4787 s390-ccw.img: Fix sporadic errors with ccw boot image - initialize css
We have to set the cssid to 0, otherwise the stsch code will
return an operand exception without the m bit. In the same way
we should set m=0.

This case was triggered in some cases during reboot, if for some
reason the location of blk_schid.cssid contains 1 and m was 0.
Turns out that the qemu elf loader does not zero out the bss section
on reboot.

The symptom was an dump of the old kernel with several areas
overwritten. The bootloader does not register a program check
handler, so bios exception jumped back into the old kernel.

Lets just use a local struct with a designed initializer. That
will guarantee that all other subelements are initialized to 0.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-02-27 09:51:26 +01:00
Christian Borntraeger
d1028f1b5b s390-ccw.img: Fix sporadic reboot hangs: Initialize next_idx
The current code does not initialize next_idx in the virtio ring.
As the ccw bios will always use guest memory at a fixed location,
this queue might != 0 after a reboot.
Lets make the initialization explicit.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-02-27 09:51:25 +01:00
Heinz Graalfs
c804c2a717 s390x/event-facility: exploit realize/unrealize
init/exit functionality of abstract SCLPEvent class is now exploiting
realize/unrealize.

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27 09:51:25 +01:00
Heinz Graalfs
6fbef18a4c s390x/event-facility: add support for live migration
Add support for live migration using VMStateDescription.

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27 09:51:25 +01:00
Heinz Graalfs
477a72a1ef s390x/event-facility: code restructure
Code restructure in order to simplify class hierarchy
  - remove S390SCLPDevice abstract base class
    and move function pointers into new SCLPEventFacilityClass
  - implement SCLPEventFacility as SysBusDevice
  - use define constants for instance creation strings

The following ascii-art shows the class structure wrt the SCLP EventFacility
before (CURRENT) and after the restructure (NEW):

----
CURRENT:

   "s390-sclp-events-bus"
   +-------------------------+
   |      SCLPEventsBus      |
   |-------------------------|
   |BusState qbus            |
   +-------------------------+

   +-------------------------+
   |   SCLPEventFacility     |  - to be replaced by new SCLPEventFacility,
   |-------------------------|    which will be a SysBusDevice
   |SCLPEventsBus sbus       |
   |DeviceState *qdev        |
   |unsigned int receive_mask|
   +-------------------------+

   +-------------------------+
   |   S390SCLPDeviceClass   |  - to be replaced by new SCLPEventFacilityClass
   |-------------------------|
   |DeviceClass qdev         |
   |*(init)()                |
   +-------------------------+

   "s390-sclp-event-facility"
             |
         instance-of
             |
             V
   "s390-sclp-device"           - this is an abstract class
   +-------------------------+
   |     S390SCLPDevice   (A)|  - to be replaced by new SCLPEventFacility
   |-------------------------|
   |SysBusDevice busdev      |
   |SCLPEventFacility *ef    |
   |                         |
   |*(sclp_command_handler)()|  - these 2 go to new SCLPEventFacilityClass
   |*(event_pending)()       |
   +-------------------------+

----
NEW:

   "s390-sclp-events-bus"
   +-------------------------+
   |      SCLPEventsBus      |
   |-------------------------|
   |BusState qbus            |
   +-------------------------+

   +-------------------------+
   | SCLPEventFacilityClass  |
   |-------------------------|
   |DeviceClass parent_class |
   |                         |
   |*(init)()                |
   |*(command_handler)()     |
   |*(event_pending)()       |
   +-------------------------+

   "s390-sclp-event-facility"
   +-------------------------+
   |   SCLPEventFacility     |
   |-------------------------|
   |SysBusDevice parent_class|
   |SCLPEventsBus sbus       |
   |unsigned int receive_mask|
   +-------------------------+

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27 09:51:25 +01:00
Heinz Graalfs
65e526c24e s390x/event-facility: some renaming
Do some renaming to shorten some identifiers and to emphasize sclp.

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27 09:51:25 +01:00
Thomas Huth
e8803d93df s390x/sclp: Fixed setting of condition code register
In the SCLP handler function, the condition code register must
only be set if no exception occured.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27 09:51:25 +01:00
Thomas Huth
6e25280216 s390x/sclp: Add missing checks to SCLP handler
If the 51 most significant bits of the SCCB address are zero or equal to
the prefix, we should throw an specification exception, too.
Also moved the check for privileged mode to sclp_service_call() to have
all program checks in one place now.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27 09:51:25 +01:00
Thomas Huth
a0fa2cb8cc s390x/sclp: Fixed the size of sccb and code parameter
The pointer to the SCCB should not be limited to 32 bits only.
In contrast to this, the command word parameter is only 32 bits
(the upper 32 bits should be ignored).

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27 09:51:25 +01:00
Christian Borntraeger
9da45bb217 s390x/eventfacility: mask out commands
As a followup to commit 5f04c14a10
(s390-sclp: Define New SCLP Codes) we should mask the sclp command
not only in base sclp, but also in the event facility.

Based on an initial patch from Ralf Hoppe.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27 09:51:25 +01:00
Thomas Huth
77319f2263 s390x/virtio-hcall: Specification exception for illegal subcodes
So far, the DIAG 500 hypervisor call was only setting -EINVAL in
R2 when a guest tried to call this function with an illegal subcode.
This patch now changes the behavior so that a specification exception
is thrown instead, since this is the common behavior of other DIAG
functions (and other CPU instructions) when being called with illegal
parameters.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27 09:51:25 +01:00
Thomas Huth
f2c55d1735 s390x/virtio-hcall: Add range check for hypervisor call
The handler for diag 500 did not check whether the requested function
was in the supported range, so illegal values could crash QEMU in the
worst case.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
CC: qemu-stable@nongnu.org
2014-02-27 09:51:25 +01:00
Thomas Huth
0788082a4b s390x/kvm: Fixed bad SIGP SET-ARCHITECTURE handler
The SET-ARCHITECTURE handler in QEMU caused a program interruption.
This is wrong according to the "Principles of Operations" specification
(since SIGP should never cause a program interrupt) and was likely only
introduced for debugging purposes. Since we handle SET-ARCHITECTURE in
the kernel already and only dropped to user space in case of bad mode
parameters, we should just report INVALID PARAMETER in QEMU instead.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27 09:51:25 +01:00
Dominik Dingel
819bd3091e s390x/async_pf: Check for apf extension and enable pfault
S390 can also use async page faults, to enhance guest scheduling.
In case of live migration we want to disable the feature and let
all pending request finish.

Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27 09:51:25 +01:00
Jens Freimann
3a553fc658 s390x/kvm: implement floating-interrupt controller device
This patch implements a floating-interrupt controller device (flic)
which interacts with the s390 flic kvm_device.

Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27 09:51:25 +01:00
Christian Borntraeger
216db403d0 update linux headers to kvm/next
This updates the kvm headers to
commit d3714010c307d26df251c45be9cd12ab6d41f0c4
    KVM: x86: emulator_cmpxchg_emulated should mark_page_dirty
in kvm/next.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27 09:50:45 +01:00
Peter Maydell
2ce5868ca1 target-arm queue:
* fixes for various Coverity-spotted bugs
  * support new KVM device control API for VGIC
  * support KVM VGIC save/restore/migration
  * more AArch64 system mode foundations
  * support ARMv8 CRC instructions for A32/T32
  * PL330 minor fixes and cleanup
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20140226' into staging

target-arm queue:
 * fixes for various Coverity-spotted bugs
 * support new KVM device control API for VGIC
 * support KVM VGIC save/restore/migration
 * more AArch64 system mode foundations
 * support ARMv8 CRC instructions for A32/T32
 * PL330 minor fixes and cleanup

# gpg: Signature made Wed 26 Feb 2014 17:51:32 GMT using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"

* remotes/pmaydell/tags/pull-target-arm-20140226: (45 commits)
  dma/pl330: implement dmaadnh instruction
  dma/pl330: Fix buffer depth
  dma/pl330: Add event debugging printfs
  dma/pl330: Rename parent_obj
  dma/pl330: printf format type sweep.
  dma/pl330: Fix misleading type
  dma/pl330: Delete overly verbose debug printf
  target-arm: Add support for AArch32 ARMv8 CRC32 instructions
  include/qemu/crc32c.h: Rename include guards to match filename
  target-arm: Add utility function for checking AA32/64 state of an EL
  target-arm: Implement AArch64 view of CPACR
  target-arm: A64: Implement MSR (immediate) instructions
  target-arm: Store AIF bits in env->pstate for AArch32
  target-arm: A64: Implement WFI
  target-arm: Get MMU index information correct for A64 code
  target-arm: Implement AArch64 OSLAR_EL1 sysreg as WI
  target-arm: Implement AArch64 dummy breakpoint and watchpoint registers
  target-arm: Implement AArch64 ID and feature registers
  target-arm: Implement AArch64 generic timers
  target-arm: Implement AArch64 MPIDR
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-26 22:53:51 +00:00
Peter Maydell
6f6831f61a migration/next for 20140225
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Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20140225' into staging

migration/next for 20140225

# gpg: Signature made Tue 25 Feb 2014 14:04:31 GMT using RSA key ID 5872D723
# gpg: Can't check signature: public key not found

* remotes/juanquintela/tags/migration/20140225:
  rdma: rename 'x-rdma' => 'rdma'
  Fix two XBZRLE corruption issues
  Fix vmstate_info_int32_le comparison/assign
  qemu_file: use fwrite() correctly

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-26 22:31:10 +00:00
Peter Maydell
bc3fbad816 Net patches
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Merge remote-tracking branch 'remotes/stefanha/tags/net-pull-request' into staging

Net patches

# gpg: Signature made Tue 25 Feb 2014 13:32:33 GMT using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/net-pull-request:
  virtio-net: use qemu_get_queue() where possible
  vhost_net: use offload API instead of bypassing it
  net: remove implicit peer from offload API
  net: Disable netmap backend when not supported
  net: add offloading support to netmap backend
  net: make tap offloading callbacks static
  net: virtio-net and vmxnet3 use offloading API
  net: TAP uses NetClientInfo offloading callbacks
  net: extend NetClientInfo for offloading
  net: change vnet-hdr TAP prototypes
  opencores_eth: flush queue whenever can_receive can go from false to true

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-26 20:04:37 +00:00