Peter A. G. Crosthwaite [Mon, 13 Aug 2012 10:04:07 +0000 (11:04 +0100)]
ssd0323: abort() instead of exit(1) on error.
To be more consistent with the newer ways of error signalling. That and SIGABT
is easier to debug with than exit(1).
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Mitsyanko Igor [Mon, 13 Aug 2012 10:04:07 +0000 (11:04 +0100)]
hw/sd.c: make sd_wp_addr() return bool
For the sake of code clarity
Signed-off-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Mitsyanko Igor [Mon, 13 Aug 2012 10:04:07 +0000 (11:04 +0100)]
hw/sd.c: make sd_dataready() return bool
For the sake of code clarity
Signed-off-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Mitsyanko Igor [Mon, 13 Aug 2012 10:04:06 +0000 (11:04 +0100)]
hw/sd.c: convert binary variables to bool
Several members of SDState have type int when they actually are binary variables.
Change type of these variables to bool to improve code readability. Change SD API
to be in consistency with new variables type.
Signed-off-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Mitsyanko Igor [Mon, 13 Aug 2012 10:04:06 +0000 (11:04 +0100)]
hw/sd.c: introduce wrapper for conversion address to wp group
Add wrapper function sd_addr_to_wpnum() to replace long address-->wg_group
conversion line.
Signed-off-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Mitsyanko Igor [Mon, 13 Aug 2012 10:04:06 +0000 (11:04 +0100)]
hw/sd.c: make sd_wp_addr() accept 64 bit address argument
Currently sd_wp_addr() accepts 32 bit address arguments therefore implicitly
restricting SD card address range. Change address argument type to uint64_t.
Signed-off-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Mitsyanko Igor [Mon, 13 Aug 2012 10:04:06 +0000 (11:04 +0100)]
hw/sd.c: convert wp_groups in SDState to bitfield
Representing each group write protection flag with only one bit instead of int
variable significantly reduces memory consumption.
Signed-off-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter A. G. Crosthwaite [Mon, 13 Aug 2012 10:04:05 +0000 (11:04 +0100)]
armv7m: Guard against no -kernel argument
A -kernel argument must be specified for this machine. Guard against no -kernel
argument. Previously gave an unhelpful "bad address" error message.
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Tested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Mon, 13 Aug 2012 10:04:05 +0000 (11:04 +0100)]
hw/armv7m_nvic: Fix incorrect default for num-irqs property
Fix an incorrect default value for the num-irqs property (we were
attempting to override it from the default set by the parent class
but not succeeding, which meant that the lm3s6965evb model would
assert on startup attempting to wire up nonexistent irq lines).
Instead of trying to override the parent's Property array, we
define an instance_init function which runs after default setup
but before user property setting and can just fix up the default
value in the gic_state struct.
Reported-by: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
Tested-by: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Anthony Liguori [Fri, 10 Aug 2012 03:16:10 +0000 (13:16 +1000)]
qom: Reimplement Interfaces
The current implementation of Interfaces is poorly designed. Each interface
that an object implements ends up being an object that's tracked by the
implementing object. There's all sorts of gymnastics to deal with casting
between these objects.
But an interface shouldn't be associated with an Object. Interfaces are global
to a class. This patch moves all Interface knowledge to ObjectClass eliminating
the relationship between Object and Interfaces.
Interfaces are now abstract (as they should be) but this is okay. Interfaces
essentially act as additional parents for the classes and are treated as such.
With this new implementation, we should fully support derived interfaces
including reimplementing an inherited interface.
PC: Rebased against qom-next merge Jun-2012.
PC: Removed replication of cast logic for interfaces, i.e. there is only
one cast function - object_dynamic_cast() (and object_dynamic_cast_assert())
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Peter A. G. Crosthwaite [Fri, 10 Aug 2012 03:16:11 +0000 (13:16 +1000)]
xilinx_axi*: Re-implemented interconnect
Re-implemented the interconnect between the Xilinx AXI ethernet and DMA
controllers. A QOM interface "stream" is created, for the two stream interfaces.
As per Edgars request, this is designed to be more generic than AXI-stream,
so in the future we may see more clients of this interface beyond AXI stream.
This is based primarily on Paolos original refactoring of the interconnect.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter A.G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Anthony Liguori [Sun, 12 Aug 2012 00:49:03 +0000 (19:49 -0500)]
Merge remote-tracking branch 'stefanha/trivial-patches' into staging
* stefanha/trivial-patches:
target-arm: Fix typos in comments
arm: translate: comment typo - s/middel/middle/
vl.c: Exit QEMU early if no machine is found
Anthony Liguori [Sun, 12 Aug 2012 00:48:50 +0000 (19:48 -0500)]
Merge remote-tracking branch 'kwolf/for-anthony' into staging
* kwolf/for-anthony:
qemu-iotests: skip 039 with ./check -nocache
block: add BLOCK_O_CHECK for qemu-img check
qcow2: mark image clean after repair succeeds
qed: mark image clean after repair succeeds
blockdev: flip default cache mode from writethrough to writeback
virtio-blk: disable write cache if not negotiated
virtio-blk: support VIRTIO_BLK_F_CONFIG_WCE
qemu-iotests: Save some sed processes
ahci: Fix sglist memleak in ahci_dma_rw_buf()
ahci: Fix ahci cdrom read corruptions for reads > 128k
virtio-blk: fix use-after-free while handling scsi commands
Anthony Liguori [Sat, 11 Aug 2012 22:11:23 +0000 (17:11 -0500)]
Merge remote-tracking branch 'bonzini/scsi-next' into staging
* bonzini/scsi-next:
scsi-disk: add support for the UNMAP command
scsi-disk: improve out-of-range LBA detection for WRITE SAME
scsi-disk: more assertions and resets for aiocb
virtio-scsi: do not compare 32-bit QEMU tags against 64-bit virtio-scsi tags
iscsi: Pick default initiator-name based on the name of the VM
iscsi: reorganize code for parse_initiator_name
iscsi: do not leak initiator_name
Blue Swirl [Thu, 9 Aug 2012 20:21:25 +0000 (20:21 +0000)]
configure: fix double check tests with Clang
Configuring with Clang compiler with -Werror would not work after
improved checks:
/tmp/qemu-conf--25992-.c:4:32: error: self-comparison always evaluates
to true [-Werror,-Wtautological-compare]
int main(void) { return preadv == preadv; }
/tmp/qemu-conf--25992-.c:13:26: error: self-comparison always
evaluates to true [-Werror,-Wtautological-compare]
return epoll_create1 == epoll_create1;
/tmp/qemu-conf--25992-.c:3:13: error: explicitly assigning a variable
of type 'char **' to itself [-Werror,-Wself-assign]
environ = environ;
Avoid the errors by adjusting the tests.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Peter Maydell [Wed, 18 Jul 2012 14:10:28 +0000 (15:10 +0100)]
configure: Check for -Werror causing failures when compiling tests
Add support for checking whether test case code can compile without
warnings, by recompiling each successful test with -Werror. If the
-Werror version doesn't pass, we bail out. This gives us the same
level of visibility of warnings in test code as --enable-werror
provides for the main compile.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Igor Mitsyanko [Fri, 10 Aug 2012 14:45:11 +0000 (18:45 +0400)]
exec.c: fix dirty bitmap reallocation
For each newly created RAM block, dirty bitmap is reallocated with g_realloc, which doesn't
make any promises on initial content of new extra data in returned buffer. In theory,
we initialize this new data with cpu_physical_memory_set_dirty_range() call. The
problem is, cpu_physical_memory_set_dirty_range() has a side effect of incrementing
ram_list.dirty_pages variable, but only for pages which are not already dirty. And
page "cleanliness" is determined using the same not yet uninitialized dirty bitmap
we've just reallocated. This results in inconsistency between real dirty page number
and value in ram_list.dirty_pages variable, which in turn could (and will) result
in errors during VM migration.
Zero initialize new dirty bitmap bytes to fix this problem.
Signed-off-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Stefan Hajnoczi [Fri, 10 Aug 2012 13:08:42 +0000 (14:08 +0100)]
Makefile: add qapi.py dependencies
Commit
427a1a2cb1d35b83b6302886f46289f6d617134d ("qapi: avoid reserved
keywords") modifies qapi.py, which is used by qapi-types.py and other
Python scripts. Because Makefile has no dependencies for qapi.py the
qapi code generator will not be rerun and the following build error is
produced:
net/slirp.c: In function ‘net_init_slirp’:
net/slirp.c:721:50: error: ‘NetdevUserOptions’ has no member named ‘q_restrict’
Fix this issue by adding the missing qapi.py dependencies.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Guan Xuetao [Fri, 10 Aug 2012 06:42:39 +0000 (14:42 +0800)]
unicore32-softmmu: Add a minimal curses screen support
This patch adds a minimal curses screen support for unicore32-softmmu.
We assume 80*30 screen size to minimize the implementation.
Two problems are not solved, but they are innocuous.
1. curses windows will be blank when switching to monitor screen and back
2. backspace is not handled yet
v1->v2: add extra handler for '\r'
Signed-off-by: Zhang Mengchi <zhangmengchi@mprc.pku.edu.cn>
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Guan Xuetao [Fri, 10 Aug 2012 06:42:38 +0000 (14:42 +0800)]
unicore32: Close dump-option of cpu_dump_state_ucf64 function
Since of tedious output, we close dump-option of cpu_dump_state_ucf64 function.
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Guan Xuetao [Fri, 10 Aug 2012 06:42:37 +0000 (14:42 +0800)]
unicore32: Disintegrate cpu_dump_state_ucf64 function
This patch disintegrates cpu_dump_state_ucf64 function from cpu_dump_state.
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Guan Xuetao [Fri, 10 Aug 2012 06:42:36 +0000 (14:42 +0800)]
unicore32: Split UniCore-F64 instruction helpers from helper.c
This patch just splits ucf64 instruction simulation helpers from
helper.c.
Also, two checkpatch warnings are solved.
v1->v2: adjust copyright information for new ucf64_helper.c
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Guan Xuetao [Fri, 10 Aug 2012 06:42:35 +0000 (14:42 +0800)]
unicore32-softmmu: Add is_default setting for puv3 machine
This patch sets is_default to 1 for puv3 machine, so that
find_default_machine() returns puv3 machine.
Thanks Dunrong for pointing it out.
Cc: Dunrong Huang <riegamaths@gmail.com>
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Guan Xuetao [Fri, 10 Aug 2012 06:42:34 +0000 (14:42 +0800)]
unicore32-softmmu: Add maintainer information for UniCore32 machine
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Guan Xuetao [Fri, 10 Aug 2012 06:42:33 +0000 (14:42 +0800)]
unicore32-softmmu: Add ps2 support
This patch adds ps2/keyboard support, and enables CONFIG_PCKBD.
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Guan Xuetao [Fri, 10 Aug 2012 06:42:32 +0000 (14:42 +0800)]
unicore32-softmmu: Add puv3 dma support
This patch adds puv3 dma (Direct Memory Access) support,
include dma device simulation for kernel booting.
v1->v2: Add initialization to ret in puv3_dma_read.
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Guan Xuetao [Fri, 10 Aug 2012 06:42:31 +0000 (14:42 +0800)]
unicore32-softmmu: Add puv3 pm support
This patch adds puv3 pm (power management) support,
include pm device simulation for kernel booting.
Thank Blue Swirl for pointing out the missing "break".
v1->v2: Add initialization to ret in puv3_pm_read.
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Guan Xuetao [Fri, 10 Aug 2012 06:42:30 +0000 (14:42 +0800)]
unicore32-softmmu: Add puv3 gpio support
This patch adds puv3 gpio (General Purpose Input/Output) support,
include gpio device simulation and its interrupt support.
v1->v2: Add initialization to ret in puv3_gpio_read.
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Guan Xuetao [Fri, 10 Aug 2012 06:42:29 +0000 (14:42 +0800)]
unicore32-softmmu: Add puv3 ostimer support
This patch adds puv3 ostimer support, include os timer
device simulation and ptimer support in puv3 machine.
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Guan Xuetao [Fri, 10 Aug 2012 06:42:28 +0000 (14:42 +0800)]
unicore32-softmmu: Add puv3 interrupt support
This patch adds puv3 interrupt support, include interrupt controler
device simulation and interrupt handler in puv3 machine.
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Guan Xuetao [Fri, 10 Aug 2012 06:42:27 +0000 (14:42 +0800)]
unicore32-softmmu: Add puv3 soc/board support
This patch only add puv3 soc/board support, which introduces puv3
machine description, and specifies console type.
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Guan Xuetao [Fri, 10 Aug 2012 06:42:26 +0000 (14:42 +0800)]
unicore32-softmmu: Make sure that kernel can access user space
As a matter of course, we need to access user space in kernel code,
so we need to correct load/store decoders to indicate correct memory
region.
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Guan Xuetao [Fri, 10 Aug 2012 06:42:25 +0000 (14:42 +0800)]
unicore32-softmmu: Implement softmmu specific functions
This patch implements softmmu specific functions, include tlb_fill,
switch_mode, do_interrupt and uc32_cpu_handle_mmu_fault.
So the full exception handlers and page table walking could work now.
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Andreas Färber [Fri, 10 Aug 2012 06:42:24 +0000 (14:42 +0800)]
target-unicore32: Drop UC32_CPUID macros
Any code that depends on a particular CPU type can now go through
callbacks on the QOM UniCore32CPUClass.
Signed-off-by: Andreas Färber <afaerber@suse.de
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Guan Xuetao [Fri, 10 Aug 2012 06:42:23 +0000 (14:42 +0800)]
unicore32-softmmu: Make UniCore32 cpuid & exceptions correct and runable
This patch initializes the cpuid to exactly correct value because
linux kernel will check it.
In addition, the exception types are specified in proper situations.
Then it could make exceptions generated correctly and timely.
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Guan Xuetao [Fri, 10 Aug 2012 06:42:22 +0000 (14:42 +0800)]
unicore32-softmmu: Add coprocessor 0(sysctrl) and 1(ocd) instruction support
Coprocessor 0 is system control coprocessor, and we need get/set its contents.
Also, all cache/tlb ops shoule be implemented here, but just ignored with no harm.
Coprocessor 1 is OCD (on-chip-debugger), which is used for faked console,
so we could output chars to this console without graphic card.
TODO: curses display should be added lator for screen output.
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Guan Xuetao [Fri, 10 Aug 2012 06:42:21 +0000 (14:42 +0800)]
unicore32-softmmu: Add unicore32-softmmu build support
This patch adds unicore32-softmmu build support, include configure,
makefile, arch_init, and all missing functions needed by softmmu.
Although all missing functions are empty, unicore32-softmmu could
be build successfully.
By
20120804: change QEMU_ARCH_UNICORE32 to 0x4000
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Peter Maydell [Mon, 6 Aug 2012 16:42:18 +0000 (17:42 +0100)]
target-arm: Fix typos in comments
Fix a variety of typos in comments in target-arm files.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Peter A. G. Crosthwaite [Mon, 6 Aug 2012 07:05:56 +0000 (17:05 +1000)]
arm: translate: comment typo - s/middel/middle/
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Dunrong Huang [Mon, 23 Jul 2012 16:42:20 +0000 (00:42 +0800)]
vl.c: Exit QEMU early if no machine is found
We check whether the variable machine is NULL or not before accessing
it. If machine is NULL, exit QEMU with an error, this can avoids a
segfault error.
Markus Armbruster <armbru@redhat.com> adds that the segfault can be
reproduced as follows:
$ qemu-system-xtensa -cpu help
Signed-off-by: Dunrong Huang <riegamaths@gmail.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Stefan Hajnoczi [Thu, 9 Aug 2012 12:05:57 +0000 (13:05 +0100)]
qemu-iotests: skip 039 with ./check -nocache
When the qemu-io --nocache option is used the 039 test case cannot abort
QEMU at a point where the image is dirty. Skip the test case.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Stefan Hajnoczi [Thu, 9 Aug 2012 12:05:56 +0000 (13:05 +0100)]
block: add BLOCK_O_CHECK for qemu-img check
Image formats with a dirty bit, like qed and qcow2, repair dirty image
files upon open with BDRV_O_RDWR. Performing automatic repair when
qemu-img check runs is not ideal because the bdrv_open() call repairs
the image before the actual bdrv_check() call from qemu-img.c.
Fix this "double repair" since it leads to confusing output from
qemu-img check. Tell the block driver that this image is being opened
just for bdrv_check(). This skips automatic repair and qemu-img.c can
invoke it manually with bdrv_check().
Update the golden output for qemu-iotests 039 to reflect the new
qemu-img check output.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Stefan Hajnoczi [Thu, 9 Aug 2012 12:05:55 +0000 (13:05 +0100)]
qcow2: mark image clean after repair succeeds
The dirty bit is cleared after image repair succeeds in qcow2_open().
Move this into qcow2_check() so that all callers benefit from this
behavior when fix mode is enabled.
This is necessary so qemu-img check can call .bdrv_check() and mark the
image clean.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Stefan Hajnoczi [Thu, 9 Aug 2012 12:05:54 +0000 (13:05 +0100)]
qed: mark image clean after repair succeeds
The dirty bit is cleared after image repair succeeds in qed_open().
Move this into qed_check() so that all callers benefit from this
behavior when fix=true.
This is necessary so qemu-img check can call .bdrv_check() and mark the
image clean.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Paolo Bonzini [Thu, 9 Aug 2012 14:07:21 +0000 (16:07 +0200)]
blockdev: flip default cache mode from writethrough to writeback
Now all major device models (IDE, SCSI, virtio) can choose between
writethrough and writeback at run-time, and virtio will even revert
to writethrough if the guest is not capable of sending flushes. So
we can change the default to writeback at last.
Tested, for lack of a better idea, with a breakpoint on bdrv_open
and all cache choices one by one.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Paolo Bonzini [Thu, 9 Aug 2012 14:07:20 +0000 (16:07 +0200)]
virtio-blk: disable write cache if not negotiated
If the guest does not support flushes, we should run in writethrough mode.
The setting is temporary until the next reset, so that for example the
BIOS will run in writethrough mode while Linux will run with a writeback
cache.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Paolo Bonzini [Thu, 9 Aug 2012 14:07:19 +0000 (16:07 +0200)]
virtio-blk: support VIRTIO_BLK_F_CONFIG_WCE
Also rename VIRTIO_BLK_F_WCACHE to VIRTIO_BLK_F_WCE for consistency with
the spec.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Kevin Wolf [Thu, 9 Aug 2012 11:17:14 +0000 (13:17 +0200)]
qemu-iotests: Save some sed processes
Instead of building a huge pipeline, just pass all expressions to a
single sed process.
Suggested-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Jason Baron [Fri, 3 Aug 2012 19:57:10 +0000 (15:57 -0400)]
ahci: Fix sglist memleak in ahci_dma_rw_buf()
I noticed that in hw/ide/ahci:ahci_dma_rw_buf() we do not free the sglist. Thus,
I've added a call to qemu_sglist_destroy() to fix this memory leak.
In addition, I've adeed a call in qemu_sglist_destroy() to 0 all of the sglist
fields, in case there is some other codepath that tries to free the sglist.
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Jason Baron [Fri, 3 Aug 2012 19:57:06 +0000 (15:57 -0400)]
ahci: Fix ahci cdrom read corruptions for reads > 128k
While testing q35, which has its cdrom attached to the ahci controller, I found
that the Fedora 17 install would panic on boot. The panic occurs while
squashfs is trying to read from the cdrom. The errors are:
[ 8.622711] SQUASHFS error: xz_dec_run error, data probably corrupt
[ 8.625180] SQUASHFS error: squashfs_read_data failed to read block
0x20be48a
I was also able to produce corrupt data reads using an installed piix based
qemu machine, using 'dd'. I found that the corruptions were only occuring when
then read size was greater than 128k. For example, the following command
results in corrupted reads:
dd if=/dev/sr0 of=/tmp/blah bs=256k iflag=direct
The > 128k size reads exercise a different code path than 128k and below. In
ide_atapi_cmd_read_dma_cb() s->io_buffer_size is capped at 128k. Thus,
ide_atapi_cmd_read_dma_cb() is called a second time when the read is > 128k.
However, ahci_dma_rw_buf() restart the read from offset 0, instead of at 128k.
Thus, resulting in a corrupted read.
To fix this, I've introduced 'io_buffer_offset' field in IDEState to keep
track of the offset. I've also modified ahci_populate_sglist() to take a new
3rd offset argument, so that the sglist is property initialized.
I've tested this patch using 'dd' testing, and Fedora 17 now correctly boots
and installs on q35 with the cdrom ahci controller.
Signed-off-by: Jason Baron <jbaron@redhat.com>
Tested-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Avi Kivity [Mon, 6 Aug 2012 12:49:03 +0000 (15:49 +0300)]
virtio-blk: fix use-after-free while handling scsi commands
The scsi passthrough handler falls through after completing a
request into the failure path, resulting in a use after free.
Reproducible by running a guest with aio=native on a block device.
Reported-by: Stefan Priebe <s.priebe@profihost.ag>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Bruce Rogers [Thu, 9 Aug 2012 18:47:40 +0000 (12:47 -0600)]
handle device help before accelerator set up
A command line device probe using just -device "?" gets processed
after qemu-kvm initializes the accelerator. If /dev/kvm is not
present, the accelerator check will fail (kvm is defaulted to on),
which causes libvirt to not be set up to handle qemu guests.
Moving the device help handling before the accelerator set up allows
the device probe to work in this configuration and libvirt succeeds
in setting up for a qemu hypervisor mode.
Signed-off-by: Bruce Rogers <brogers@suse.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Thu, 9 Aug 2012 18:44:49 +0000 (18:44 +0000)]
Merge branch 'x86cpu_qom_tcg_v2' of git://github.com/imammedo/qemu
* 'x86cpu_qom_tcg_v2' of git://github.com/imammedo/qemu:
target-i386: move tcg initialization into x86_cpu_initfn()
cleanup cpu_set_debug_excp_handler
target-xtensa: drop usage of prev_debug_excp_handler
target-i386: drop usage of prev_debug_excp_handler
Stefano Stabellini [Tue, 29 May 2012 03:35:24 +0000 (03:35 +0000)]
qemu_rearm_alarm_timer: do not call rearm if the next deadline is INT64_MAX
qemu_rearm_alarm_timer partially duplicates the code in
qemu_next_alarm_deadline to figure out if it needs to rearm the timer.
If it calls qemu_next_alarm_deadline, it always rearms the timer even if
the next deadline is INT64_MAX.
This patch simplifies the behavior of qemu_rearm_alarm_timer and removes
the duplicated code, always calling qemu_next_alarm_deadline and only
rearming the timer if the deadline is less than INT64_MAX.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Tested-by: Andreas Färber <andreas.faerber@web.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Max Filippov [Wed, 8 Aug 2012 23:31:38 +0000 (03:31 +0400)]
target-xtensa: make 'sim' to be the default machine
This fixes the following error:
$ qemu-system-xtensa -cpu help
Segmentation fault
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Max Filippov [Wed, 8 Aug 2012 10:07:14 +0000 (14:07 +0400)]
target-xtensa: make default CPU depend on target endianness
This makes usable default for -cpu option both for qemu-system-xtensa
and qemu-system-xtensaeb fixing the following error:
$ qemu-system-xtensaeb -M sim
Unable to find CPU definition
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Tested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Nathan Froyd [Thu, 7 Jun 2012 15:04:14 +0000 (15:04 +0000)]
MIPS: Correct FCR0 initialization
This change addresses a problem where QEMU incorrectly traps on
floating-point MADD group instructions with SIGILL, at least while
emulating MIPS32r2 processors. These instructions use the COP1X major
opcode and include ones like:
madd.d $f2,$f4,$f2,$f6
Here's Nathan's original analysis of the problem:
"QEMU essentially does:
d = find_cpu (cpu_string) // get CPU definition
fpu_init (env, d) // initialize fpu state (init FCR0, basically)
cpu_reset (env)
...and the cpu_reset call clears all interesting state that fpu_init
setup, then proceeds to reinitialize all the CP0 registers...but not
FCR0."
I have verified this change with system emulation running the GDB test
suite for the mips-sde-elf target (o32, big endian, 24Kf CPU emulated),
there were 55 progressions and no regressions.
Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Mon, 30 Jul 2012 17:46:06 +0000 (17:46 +0000)]
scsi-bus: remove overlapping entry
LOAD_UNLOAD and START_STOP have same value, so the table
entry is initialized twice. Spotted by Clang compiler.
Remove LOAD_UNLOAD entry since START_STOP entry already
represents both.
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Mon, 30 Jul 2012 17:28:04 +0000 (17:28 +0000)]
xilinx_axienet: avoid useless self-assignment
Statement s=s; makes little sense, remove it. Spotted by Clang
compiler.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Mon, 30 Jul 2012 15:51:17 +0000 (15:51 +0000)]
user: fix accidental AREG0 use
Global register AREG0 was always assumed to be usable in user-exec.c,
but this is incorrect for several targets.
Fix with #ifdeffery and by using other variables.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Mon, 30 Jul 2012 15:46:55 +0000 (15:46 +0000)]
qapi: avoid reserved keywords
Clang compiler complained about use of reserved word 'restrict' in SLIRP
and QAPI.
Prefix C keywords with "q_", adjust SLIRP accordingly.
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Mon, 30 Jul 2012 15:29:11 +0000 (15:29 +0000)]
sparc: fix expression with uninitialized initial value
err was uninitialized, it's not OK to use |=. Spotted by Clang
compiler.
Fix by implementing the earlier statement which initializes the variable.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Mon, 30 Jul 2012 15:24:23 +0000 (15:24 +0000)]
sparc: fix floppy TC line setup
The qemu_irq for Terminal Count (TC) line between FDC and Slavio misc
device was created only after use, spotted by Clang compiler. Also,
it was not created if the FDC didn't exist.
Rearrange code to fix order. Always create the TC line.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Hervé Poussineau [Sat, 4 Aug 2012 19:10:06 +0000 (21:10 +0200)]
esp: add Tekram DC-390 emulation (PC SCSI adapter)
Difference with AMD PCscsi is that DC-390 contains a EEPROM,
and that a romfile is available to add INT13 support.
This has been successfully tested on:
- MS DOS 6.22 (using DC390 ASPI driver)
- MS Windows 98 SE (using DC390 driver)
- MS Windows NT 3.1 (using DC390 driver)
- MS Windows NT 4.0 (using DC390 driver)
- hard disk and cdrom boot
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Hervé Poussineau [Sat, 4 Aug 2012 19:10:05 +0000 (21:10 +0200)]
Revert "pci: add some stubs"
This reverts commit
0883c5159f1df05d8761014f65451c3c3b77ebcf.
Those stubs were only used by PCI ESP emulation, which is now
not compiled on architectures which have no PCI bus support.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Hervé Poussineau [Sat, 4 Aug 2012 19:10:04 +0000 (21:10 +0200)]
esp: move PCI emulation to a new file esp-pci.c
sparc machines loose ability to instanciate PCI ESP SCSI adapter,
which is not a big loose as they don't have PCI bus support.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Hervé Poussineau [Sat, 4 Aug 2012 19:10:03 +0000 (21:10 +0200)]
esp: move some definitions to header file
These will be used by next commits.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Paolo Bonzini [Thu, 9 Aug 2012 09:00:22 +0000 (11:00 +0200)]
scsi-disk: add support for the UNMAP command
The unmap command can reuse the same infrastructure as MODE SELECT
for reading the descriptor list into memory. The descriptors are
processed sequentially.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Thu, 9 Aug 2012 11:34:53 +0000 (13:34 +0200)]
scsi-disk: improve out-of-range LBA detection for WRITE SAME
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Thu, 9 Aug 2012 09:33:26 +0000 (11:33 +0200)]
scsi-disk: more assertions and resets for aiocb
Leaving the aiocb to a non-NULL value leads to an assertion failure when
rerror/werror are set to stop or enospc, and the operation is retried.
scsi-disk checks that the aiocb member is NULL before filling it.
This patch correctly resets the aiocb to NULL values everywhere,
and adds the dual assertion that the aiocb was non-NULL before
calling bdrv_acct_done.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Wed, 8 Aug 2012 14:26:16 +0000 (16:26 +0200)]
virtio-scsi: do not compare 32-bit QEMU tags against 64-bit virtio-scsi tags
This patch fixes a problem in handling task management functions
in virtio-scsi. The cause of the problem is a mismatch between
the size of the tag in QEMU (32-bit) and virtio-scsi (64-bit).
Changing the QEMU size is hard because the migration format
uses 32 bits to store the tag; so just don't use the QEMU tag
(virtio-scsi only uses the tag for task management functions
anyway) and look up the full 64-bit tag in the hba_private field.
The reproducer is a bit obscure. If you cause an I/O timeout
(for example with rerror=stop and doing 'cont' on the monitor
continuously without fixing the error), sooner or later the
guest will try to abort the command and reissue it. At this
point, QEMU will report _two_ errors instead of one when you
hit 'c', because the first error has not been canceled correctly.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Ronnie Sahlberg [Mon, 6 Aug 2012 08:24:55 +0000 (18:24 +1000)]
iscsi: Pick default initiator-name based on the name of the VM
This patch updates the iscsi layer to automatically pick a 'unique'
initiator-name based on the name of the vm in case the user has not set
an explicit iqn-name to use.
Create a new function qemu_get_vm_name() that returns the name of the VM,
if specified.
This way we can thus create default names to use as the initiator name
based on the guest session.
If the VM is not named via the '-name' command line argument, the iscsi
initiator-name used wiull simply be
iqn.2008-11.org.linux-kvm
If a name for the VM was specified with the '-name' option, iscsi will
use a default initiatorname of
iqn.2008-11.org.linux-kvm:<name>
These names are just the default iscsi initiator name that qemu will
generate/use only when the user has not set an explicit initiator name
via the commandlines or config files.
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Paolo Bonzini [Mon, 6 Aug 2012 08:54:41 +0000 (10:54 +0200)]
iscsi: reorganize code for parse_initiator_name
Merge the occurrences of the "iqn.2008-11.org.linux-kvm" string
to avoid duplication.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Mon, 6 Aug 2012 08:52:22 +0000 (10:52 +0200)]
iscsi: do not leak initiator_name
The argument of iscsi_create_context is never freed by libiscsi,
which in fact calls strdup on it. Avoid a leak.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Anthony Liguori [Tue, 7 Aug 2012 14:46:40 +0000 (09:46 -0500)]
Merge remote-tracking branch 'kraxel/usb.58' into staging
* kraxel/usb.58:
usb-storage: fix SYNCHRONIZE_CACHE
usb-storage: improve debug logging
Anthony Liguori [Tue, 7 Aug 2012 14:46:24 +0000 (09:46 -0500)]
Merge remote-tracking branch 'kwolf/for-anthony' into staging
* kwolf/for-anthony:
qemu-img: use QemuOpts instead of QEMUOptionParameter in resize function
qemu-iotests: Be more flexible with image creation options
qemu-iotests: add 039 qcow2 lazy refcounts test
qemu-io: add "abort" command to simulate program crash
qcow2: implement lazy refcounts
qemu-iotests: ignore qemu-img create lazy_refcounts output
docs: add lazy refcounts bit to qcow2 specification
qcow2: introduce dirty bit
docs: add dirty bit to qcow2 specification
qemu-iotests: add qed.py image manipulation utility
qapi: generalize documentation of streaming commands
ide scsi: Mess with geometry only for hard disk devices
Gerd Hoffmann [Fri, 13 Jul 2012 09:38:13 +0000 (11:38 +0200)]
usb-storage: fix SYNCHRONIZE_CACHE
Commit
59310659073d85745854f2f10c4292555c5a1c51 is incomplete,
we'll arrive in the scsi command complete callback in CSW state
and must handle that case correctly.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Gerd Hoffmann [Fri, 13 Jul 2012 09:35:51 +0000 (11:35 +0200)]
usb-storage: improve debug logging
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Anthony Liguori [Tue, 7 Aug 2012 00:31:55 +0000 (19:31 -0500)]
slirp: fix build on mingw32
in_addr_t isn't available on mingw32. Just use an unsigned long instead. I
considered typedef'ing in_addr_t on mingw32 but this would potentially be
brittle if mingw32 did introduce the type.
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Dong Xu Wang [Mon, 6 Aug 2012 02:18:42 +0000 (10:18 +0800)]
qemu-img: use QemuOpts instead of QEMUOptionParameter in resize function
Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Kevin Wolf [Fri, 27 Jul 2012 13:14:28 +0000 (15:14 +0200)]
qemu-iotests: Be more flexible with image creation options
qemu-iotests already filters out image creation options that may be
present or not in order to get the same output in both cases. However,
often it only considers the default value of the option. Cover all valid
values instead so that ./check -o name=value can be used successfull for
all of them.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Stefan Hajnoczi [Fri, 27 Jul 2012 08:05:24 +0000 (09:05 +0100)]
qemu-iotests: add 039 qcow2 lazy refcounts test
This tests establishes the basic post-conditions of the qcow2 lazy
refcounts features:
1. If the image was closed normally, it is marked clean.
2. If an allocating write was performed and the image was not closed
normally, then it is marked dirty.
a. Written data can be read back successfully.
b. The image file can be repaired and will be marked clean again.
c. The image file is automatically repaired when opened read/write.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Stefan Hajnoczi [Fri, 27 Jul 2012 08:05:23 +0000 (09:05 +0100)]
qemu-io: add "abort" command to simulate program crash
Avoiding data loss and corruption is the top requirement for image file
formats. The qemu-io "abort" command makes it possible to simulate
program crashes and does not give the image format a chance to cleanly
shut down. This command is useful for data integrity test cases.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Stefan Hajnoczi [Fri, 27 Jul 2012 08:05:22 +0000 (09:05 +0100)]
qcow2: implement lazy refcounts
Lazy refcounts is a performance optimization for qcow2 that postpones
refcount metadata updates and instead marks the image dirty. In the
case of crash or power failure the image will be left in a dirty state
and repaired next time it is opened.
Reducing metadata I/O is important for cache=writethrough and
cache=directsync because these modes guarantee that data is on disk
after each write (hence we cannot take advantage of caching updates in
RAM). Refcount metadata is not needed for guest->file block address
translation and therefore does not need to be on-disk at the time of
write completion - this is the motivation behind the lazy refcount
optimization.
The lazy refcount optimization must be enabled at image creation time:
qemu-img create -f qcow2 -o compat=1.1,lazy_refcounts=on a.qcow2 10G
qemu-system-x86_64 -drive if=virtio,file=a.qcow2,cache=writethrough
Update qemu-iotests 031 and 036 since the extension header size changes
when we add feature bit table entries.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Stefan Hajnoczi [Fri, 27 Jul 2012 08:05:21 +0000 (09:05 +0100)]
qemu-iotests: ignore qemu-img create lazy_refcounts output
Hide the default lazy_refcounts=off output from qemu-img like we do with
other image creation options. This ensures that existing golden outputs
continue to pass despite the new option that has been added.
Note that this patch applies before the one that actually introduces the
lazy_refcounts=on|off option. This ensures git-bisect(1) continues to
work.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Stefan Hajnoczi [Fri, 27 Jul 2012 08:05:20 +0000 (09:05 +0100)]
docs: add lazy refcounts bit to qcow2 specification
The lazy refcounts bit indicates that this image can take advantage of
the dirty bit and that refcount updates can be postponed.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Stefan Hajnoczi [Fri, 27 Jul 2012 08:05:19 +0000 (09:05 +0100)]
qcow2: introduce dirty bit
This patch adds an incompatible feature bit to mark images that have not
been closed cleanly. When a dirty image file is opened a consistency
check and repair is performed.
Update qemu-iotests 031 and 036 since the extension header size changes
when we add feature bit table entries.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Stefan Hajnoczi [Fri, 27 Jul 2012 08:05:18 +0000 (09:05 +0100)]
docs: add dirty bit to qcow2 specification
The dirty bit will make it possible to perform lazy refcount updates,
where the image file is not kept consistent all the time. Upon opening
a dirty image file, it is necessary to perform a consistency check and
repair any incorrect refcounts.
Therefore the dirty bit must be an incompatible feature bit. We don't
want old programs accessing a file with stale refcounts.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Stefan Hajnoczi [Fri, 27 Jul 2012 08:01:27 +0000 (09:01 +0100)]
qemu-iotests: add qed.py image manipulation utility
The qed.py utility can inspect and manipulate QED image files. It can
be used for testing to see the state of image metadata and also to
inject corruptions into the image file. It also has a scrubbing feature
to copy just the metadata out of an image file, allowing users to share
broken image files without revealing data in bug reports.
This has lived in my local repo for a long time but could be useful
to others.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Paolo Bonzini [Tue, 24 Jul 2012 11:03:39 +0000 (13:03 +0200)]
qapi: generalize documentation of streaming commands
Talk about background operations in general, rather than specifically
about streaming.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Markus Armbruster [Thu, 12 Jul 2012 16:52:31 +0000 (18:52 +0200)]
ide scsi: Mess with geometry only for hard disk devices
Legacy -drive cyls=... are now ignored completely when the drive
doesn't back a hard disk device. Before, they were first checked
against a hard disk's limits, then ignored.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Paolo Bonzini [Mon, 6 Aug 2012 13:26:14 +0000 (15:26 +0200)]
virtio: fix vhost handling
Commit
b1f416aa8d870fab71030abc9401cfc77b948e8e breaks vhost_net
because it always registers the virtio_pci_host_notifier_read() handler
function on the ioeventfd, even when vhost_net.ko is using the ioeventfd.
The result is both QEMU and vhost_net.ko polling on the same eventfd
and the virtio_net.ko guest driver seeing inconsistent results:
# ifconfig eth0 192.168.0.1 netmask 255.255.255.0
virtio_net virtio0: output:id 0 is not a head!
To fix this, proceed the same as we do for irqfd: add a parameter to
virtio_queue_set_host_notifier_fd_handler and in that case only set
the notifier, not the handler.
Cc: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Tested-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Mon, 6 Aug 2012 18:59:59 +0000 (13:59 -0500)]
Merge remote-tracking branch 'kiszka/queues/slirp' into staging
* kiszka/queues/slirp:
slirp: Handle whole 127.0.0.0/8 network as local addresses.
Blue Swirl [Sat, 4 Aug 2012 17:58:23 +0000 (17:58 +0000)]
Merge branch 'axp-next' of git://repo.or.cz/qemu/rth
* 'axp-next' of git://repo.or.cz/qemu/rth:
alpha-linux-user: Fix the getpriority syscall
alpha-linux-user: Properly handle the non-rt sigprocmask syscall.
alpha-linux-user: Fix a3 error return with v0 error bypass.
linux-user: Translate pipe2 flags; add to strace
linux-user: Allocate the right amount of space for non-fixed file maps
linux-user: Handle O_SYNC, O_NOATIME, O_CLOEXEC, O_PATH
linux-user: Sync fcntl.h bits with the kernel
alpha-linux-user: Handle TARGET_SSI_IEEE_RAISE_EXCEPTION properly
alpha-linux-user: Work around hosted mmap allocation problems
alpha-linux-user: Fix signal handling
Richard Henderson [Thu, 7 Jun 2012 22:14:50 +0000 (15:14 -0700)]
alpha-linux-user: Fix the getpriority syscall
Alpha uses unbiased priority values in the syscall, with the a3
return value signaling error conditions. Therefore, properly
interpret the libc getpriority as needed for the guest rather
than passing the host value through unchanged.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Thu, 7 Jun 2012 22:02:49 +0000 (15:02 -0700)]
alpha-linux-user: Properly handle the non-rt sigprocmask syscall.
Name the syscall properly for QEMU, kernel source notwithstanding.
Fix syntax errors in the code thus enabled within do_syscall.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Thu, 7 Jun 2012 21:47:41 +0000 (14:47 -0700)]
alpha-linux-user: Fix a3 error return with v0 error bypass.
We were failing to initialize a3 for syscalls that bypass the
negative return value error check.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Sat, 2 Jun 2012 01:48:39 +0000 (18:48 -0700)]
linux-user: Translate pipe2 flags; add to strace
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Fri, 1 Jun 2012 23:07:52 +0000 (16:07 -0700)]
linux-user: Allocate the right amount of space for non-fixed file maps
If we let the kernel handle the implementation of mmap_find_vma,
via an anon mmap, we must use the size as indicated by the user
and not the size truncated to the filesize.
This happens often in ld.so, where we initially mmap the file to
the size of the text+data+bss to reserve an area, then mmap+fixed
over the top to properly handle data and bss.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Wed, 25 Jul 2012 21:30:34 +0000 (14:30 -0700)]
linux-user: Handle O_SYNC, O_NOATIME, O_CLOEXEC, O_PATH
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>