Avi Kivity [Sun, 13 Nov 2011 13:05:28 +0000 (15:05 +0200)]
fw_cfg: convert to memory API
Because the new API doesn't allow overlapping regions with just different
access sizes, we have to create a new "combined" region for both control
and data, when the two share an ioport offset.
Avi Kivity [Sun, 13 Nov 2011 11:05:27 +0000 (13:05 +0200)]
memory: add MemoryRegionOps::valid.accepts
MemoryRegionOps::valid tries to declaratively specify which transactions
are accepted by the device/bus, however it is not completely generic. Add
a callback for special cases.
Max Filippov [Mon, 21 Nov 2011 00:54:58 +0000 (04:54 +0400)]
configure: check for EFD_NONBLOCK | EFD_CLOEXEC flags
Add check for the EFD_NONBLOCK and EFD_CLOEXEC flags to the
CONFIG_EVENTFD test.
This fixes the following build failure on Fedora 9:
CC event_notifier.o
event_notifier.c: In function `event_notifier_init':
event_notifier.c:21: error: `EFD_NONBLOCK' undeclared (first use in this function)
event_notifier.c:21: error: (Each undeclared identifier is reported only once
event_notifier.c:21: error: for each function it appears in.)
event_notifier.c:21: error: `EFD_CLOEXEC' undeclared (first use in this function)
make: *** [event_notifier.o] Error 1
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Avi Kivity [Tue, 15 Nov 2011 18:12:17 +0000 (20:12 +0200)]
configure: build position independent executables on x86-Linux hosts
Change the default on x86 Linux hosts to building PIE (position
independent executables); instead of restricting the option to
user-only targets, apply it to all targets.
In addition, set the relocation sections to read-only (relro) when
available; this reduces the attack surface by disallowing changes to
relocation tables at runtime.
While PIE reduces performance and relro increases load time, it
greatly improves security, with the potential to reduce a code
execution vulnerability to a self denial of service.
Non-x86 are not changed, as they require TCG changes; neither are
non-Linux, due to lack of test coverage.
Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Hongyong Zang [Mon, 21 Nov 2011 10:56:18 +0000 (18:56 +0800)]
ivshmem: fix PCI BAR2 registration during initialization
Ivshmem cannot work, and the command lspci cannot show ivshmem BAR2 in the guest.
As for pci_register_bar(), parameter MemoryRegion should be s->bar instead of s->ivshmem.
Reviewed-by: Avi Kivity <avi@redhat.com> Signed-off-by: Hongyong Zang <zanghongyong@huawei.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Only accesses to the MSI-X table must trigger a call to
msix_handle_mask_update, otherwise the vector
value might be out of range.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Mon, 14 Nov 2011 21:09:46 +0000 (15:09 -0600)]
qcow2: implement bdrv_invalidate_cache (v2)
We don't reopen the actual file, but instead invoke the close and open routines.
We specifically ignore the backing file since it's contents are read-only and
therefore immutable.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Mon, 14 Nov 2011 21:09:45 +0000 (15:09 -0600)]
block: allow migration to work with image files (v3)
Image files have two types of data: immutable data that describes things like
image size, backing files, etc. and mutable data that includes offset and
reference count tables.
Today, image formats aggressively cache mutable data to improve performance. In
some cases, this happens before a guest even starts. When dealing with live
migration, since a file is open on two machines, the caching of meta data can
lead to data corruption.
This patch addresses this by introducing a mechanism to invalidate any cached
mutable data a block driver may have which is then used by the live migration
code.
NB, this still requires coherent shared storage. Addressing migration without
coherent shared storage (i.e. NFS) requires additional work.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Mon, 14 Nov 2011 21:09:43 +0000 (15:09 -0600)]
migrate: add migration blockers
This lets different subsystems register an Error that is thrown whenever
migration is attempted. This works nicely because it gracefully supports
things like hotplug.
Right now, if multiple errors are registered, only one of them is reported.
I expect that for 1.1, we'll extend query-migrate to return all of the reasons
why migration is disabled at any given point in time.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Gerd Hoffmann [Fri, 11 Nov 2011 16:14:15 +0000 (17:14 +0100)]
usb-linux: fix /proc/bus/usb/devices scan
Commit 0c402e5abb8c2755390eee864b43a98280fc2453 is incomplete
and misses one of the two function pointer calls in
usb_host_scan_dev(). Add the additional port handling logic
to the other call too.
Spotted by Coverity.
Cc: Markus Armbruster <armbru@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Gerd Hoffmann [Mon, 21 Nov 2011 13:01:26 +0000 (14:01 +0100)]
usb-storage: don't try to send the status early.
Until recently all scsi commands sent to scsi-disk did either transfer
data or finished instantly. The correct implementation of
SYNCRONIZE_CACHE changed the picture though, and usb-storage needs
a fix to handle that case correctly.
Blue Swirl [Sun, 13 Nov 2011 11:11:52 +0000 (11:11 +0000)]
x86: fix pcmpestrm and pcmpistrm
Fix obvious typos (decrement and off-by-one error) in pcmpestrm and pcmpistrm
which resulted in infinite loop. Reported by Frank Mehnert,
spotted also by Coverity (bug 84752853).
Reported-by: Frank Mehnert <frank.mehnert@oracle.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
loader: Fix read_targphys() to behave when read() fails
Happily passes (size_t)-1 to rom_add_blob_fixed(), which promptly dies
attempting to malloc that much. Spotted by Coverity.
Bonus fix for ROMs larger than INT_MAX bytes: return ssize_t instead
of int. Bug can't bite, because the only user load_aout() limits ROM
size to an int value.
Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
In both cases, val is computed, but then not used in the
subsequent line, which then re-computes the quantity in
a different type (int32_t vs unsigned long).
Keep the computation type that's been working so far.
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Sat, 19 Nov 2011 11:17:58 +0000 (11:17 +0000)]
Merge branch 's390-1.0' of git://repo.or.cz/qemu/agraf
* 's390-1.0' of git://repo.or.cz/qemu/agraf:
s390x: initialize virtio dev region
tcg: Use TCGReg for standard tcg-target entry points.
tcg: Standardize on TCGReg as the enum for hard registers
s390x: Add shutdown for TCG s390-virtio machine
s390: Fix cpu shutdown for KVM
s390: fix short kernel command lines
s390: fix reset hypercall to reset the status
s390x: implement SIGP restart and shutdown
s390x: implement rrbe instruction properly
s390x: update R and C bits in storage key
s390x: make ipte 31-bit aware
s390x: add ldeb instruction
projects / thirdparty / qemu.git / log
