'num_free_bytes' is the number of non-allocated bytes below highest-allocation.
It's useful, together with the highest-allocation, to figure out how
fragmented the image is, and how likely it will run out-of-space soon.
For example when the highest allocation is high (almost end-of-disk), but
many bytes (clusters) are free, and can be re-allocated when neeeded, than
we know it's probably not going to reach end-of-disk-space soon.
Added bookkeeping to block-qcow2.c
Export it using BlockDeviceInfo
Show it upon 'info blockstats' if BlockDeviceInfo exists
Signed-off-by: Uri Lublin <uril@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6407 c046a42c-6fe2-441c-8c8c-71466251a162
We want to know the highest written offset for qcow2 images.
This gives a pretty good (and easy to calculate) estimation to how
much more allocation can be done for the block device.
It can be usefull for allocating more diskspace for that image
(if possible, e.g. lvm) before we run out-of-disk-space
Signed-off-by: Uri Lublin <uril@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6404 c046a42c-6fe2-441c-8c8c-71466251a162
The vm state handler needed updating after the recent vm state change
notification refactoring.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6403 c046a42c-6fe2-441c-8c8c-71466251a162
Exclude objects in the root directory and temporary stgit files.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6401 c046a42c-6fe2-441c-8c8c-71466251a162
make install-doc omits an explicit permission mask for the man-pages. This
defaults to have the executable bits set. Adding "-m 644" (for rw-r--r--)
fixes that.
Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6400 c046a42c-6fe2-441c-8c8c-71466251a162
Instead of copying to a temporary buffer, map guest memory for IDE DMA
transactions.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6398 c046a42c-6fe2-441c-8c8c-71466251a162
Most devices that are capable of DMA are also capable of scatter-gather.
With the memory mapping API, this means that the device code needs to be
able to access discontiguous host memory regions.
For block devices, this translates to vectored I/O. This patch implements
an aynchronous vectored interface for the qemu block devices. At the moment
all I/O is bounced and submitted through the non-vectored API; in the future
we will convert block devices to natively support vectored I/O wherever
possible.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6397 c046a42c-6fe2-441c-8c8c-71466251a162
In general, it is not possible to predict the size of of an I/O vector since
a contiguous guest region may map to a disconiguous host region. Add some
helpers to manage I/O vector growth.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6396 c046a42c-6fe2-441c-8c8c-71466251a162
The target memory mapping API may fail if the bounce buffer resources
are exhausted. Add a notification mechanism to allow clients to retry
the mapping operation when resources become available again.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6395 c046a42c-6fe2-441c-8c8c-71466251a162
Devices accessing large amounts of memory (as with DMA) will wish to obtain
a pointer to guest memory rather than access it indirectly via
cpu_physical_memory_rw(). Add a new API to convert target addresses to
host pointers.
In case the target address does not correspond to RAM, a bounce buffer is
allocated. To prevent the guest from causing the host to allocate unbounded
amounts of bounce buffer, this memory is limited (currently to one page).
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6394 c046a42c-6fe2-441c-8c8c-71466251a162
See each patch for individual Signed-off-by's/commit logs
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6392 c046a42c-6fe2-441c-8c8c-71466251a162
Removing the assumption about a single graphic console made
get_graphic_console return NULL when called by vga_screen_dump.
In this case returning NULL is correct but since NULL is not handled in
qemu_console_resize it causes a segmentation fault.
Just returning immediately from qemu_console_resize is sufficient to fix the
problem.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6390 c046a42c-6fe2-441c-8c8c-71466251a162
Hi all,
this patch fixes the curses interface: when we switch from one console
to another we need to change the displaystate width and height even
though in the curses case the backing buffer remains of the same size.
I am also putting back the call to text_console_resize in
text_console_invalidate so that resizeable text consoles can be properly
handled.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6389 c046a42c-6fe2-441c-8c8c-71466251a162
This version of the patch adds new option "werror" to -drive flag.
Possible values are:
report - report errors to a guest as IO errors
ignore - continue as if nothing happened
stop - stop VM on any error and retry last command on resume
enospc - stop vm on ENOSPC error and retry last command on resume
all other errors are reported to a guest.
Default is "report" to maintain current behaviour.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6388 c046a42c-6fe2-441c-8c8c-71466251a162
Allocate a DisplaySurface in dumb_display_init if none else does it.
The DisplaySurface will be used for the qemu monitor, serial and
parallel ports, etc.
Signed-off-by: Andrew May <acmay@acmay.homeip.net>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6387 c046a42c-6fe2-441c-8c8c-71466251a162
Switc vram unmapping in map_linear_vram to the simpler pattern used by
unmap_linear_vram.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6386 c046a42c-6fe2-441c-8c8c-71466251a162
We should not re-register the cirrus io-memory regions on each reset.
Moreover, this patch removes some dead code and pushes other static
field initializations from reset to init_common.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6385 c046a42c-6fe2-441c-8c8c-71466251a162
cirrus bitblt reset will stop and start dirty logging even when there is no
need; this causes full redraws.
avoid by only updating memory access when exiting cpu-to-video update mode.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6384 c046a42c-6fe2-441c-8c8c-71466251a162
Cleaned-up port from kvm-userspace: We have to stop any vram logging
while doing remaps. Otherwise the logger gets confused. This reward is
enormously accelerated cirrus vga in kvm mode.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6383 c046a42c-6fe2-441c-8c8c-71466251a162
Fix the broken text mode after reset by unmapping potentially mapped
vram.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6382 c046a42c-6fe2-441c-8c8c-71466251a162
Put archive utility (ar) invocations into a rule, and have it generate
quiet output by default.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6381 c046a42c-6fe2-441c-8c8c-71466251a162
Spew out less noise when compiling. This helps review make output for
information such as compilation warnings, rather than extra long compiler
invocations.
The full output can be generated by supplying a 'V=1' parameter to make.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6380 c046a42c-6fe2-441c-8c8c-71466251a162
Use generic rules where posssible, and a LINK macro where not.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6379 c046a42c-6fe2-441c-8c8c-71466251a162
Add a file for common makefile rules.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6378 c046a42c-6fe2-441c-8c8c-71466251a162
Instead of specifying the compilation command over and over, use a single
rule and adjust it as necessary using target specific target overrides.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6377 c046a42c-6fe2-441c-8c8c-71466251a162
OP_CFLAGS is no longer used, except for machine.c, where it is not needed.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6376 c046a42c-6fe2-441c-8c8c-71466251a162
It may lead to the issue when booting windows guests with acpi=1
if return the old pmsts.
Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6375 c046a42c-6fe2-441c-8c8c-71466251a162
However I think the following fix is cleaner: we do not need a
dumb_display_init that creates an empty DisplayChangeListener any more.
We do need a dumb_display_init that allocates a zeroed DisplayState
structure if none else does it.
Tested-by: Shin-ichiro KAWASAKI <kawasaki@juno.dti.ne.jp>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6369 c046a42c-6fe2-441c-8c8c-71466251a162
And use it for the malta emulation. Fix segfault introduced in
revision 6352.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6365 c046a42c-6fe2-441c-8c8c-71466251a162
