Instead of having two has_error fields in QEMUFile & QEMUBufferedFile,
reuse the 1st one. Notice that the one in buffered_file is only set
after a file operation.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
buffered_close 's' variable is of type QEMUFileBuffered, and
wait_for_unfreeze() expect to receive a MigrationState, that
'coincidentaly' is s->opaque.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Although migrate_fd_put_buffer() sets MIG_STATE_ERROR if it failed,
since migrate_fd_put_notify() isn't checking error of underlying
QEMUFile, those resources are kept open. This patch checks it and
calls migrate_fd_error() in case of error.
Signed-off-by: Yoshiaki Tamura <tamura.yoshiaki@lab.ntt.co.jp>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Once there, make sure that if we already know that there is one error,
just call migration_fd_cleanup() with the ERROR state.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
QEMUFile * is only intended for migration nowadays. Using it for
anything else just adds pain and a layer of buffers for no good
reason.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
This reverts commit eb60260de0.
Conflicts:
savevm.c
We changed qemu_peek_byte() prototype, just fixed the rejects.
Signed-off-by: Juan Quintela<quintela@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
We add qemu_peek_buffer, that is identical to qemu_get_buffer, just
that it don't update f->buf_index.
We add a paramenter to qemu_peek_byte() to be able to peek more than
one byte.
Once this is done, to see if we have a subsection we look:
- 1st byte is QEMU_VM_SUBSECTION
- 2nd byte is a length, and is bigger than section name
- 3rd element is a string that starts with section_name
So, we shouldn't have false positives (yes, content could still get us
wrong but probabilities are really low).
v2:
- Alex Williamsom found that we could get negative values on index.
- Rework code to fix that part.
- Rewrite qemu_get_buffer() using qemu_peek_buffer()
v3:
- return "done" on error case
v4:
- fix qemu_file_skip() off by one.
Signed-off-by: Juan Quintela <quintela@redhat.com>
This patch will make moving code on next patches and having checkpatch
happy easier.
Signed-off-by: Juan Quintela<quintela@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
We will need on next patch to be able to lookahead on next patch
v2: rename "used" to "pending" (Alex Williams)
Signed-off-by: Juan Quintela<quintela@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Fix the restoring of VFP registers on vmload.
Signed-off-by: Dmitry Koshelev <karaghiozis@gmail.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
[peter.maydell: improved commit message a little]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Implement the fused multiply-accumulate instructions (VFMA, VFMS,
VFNMA, VFNMS) which are new in VFPv4.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Implement fused multiply-add as a softfloat primitive. This implements
"a+b*c" as a single step without any intermediate rounding; it is
specified in IEEE 754-2008 and implemented in a number of CPUs.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add support for UDIV and SDIV in ARM mode. This is a new optional
feature for A profile cores (Thumb mode has had UDIV and SDIV for
M profile cores for some time).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Rename the ARM_FEATURE_DIV feature bit to _THUMB_DIV, to
make room for a new feature switch enabling DIV in the ARM
encoding. (Cores may implement either (a) no divide insns
(b) divide insns in Thumb encodings only (c) divide insns
in both ARM and Thumb encodings.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Clean up the decoding of the v6 media multiply space so that we UNDEF
on unassigned encodings rather than randomly interpreting them as
some instruction in this space.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Indeed, the result is known to be always positive.
Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
It should be a matter of allowing the transition POSTMIGRATE ->
FINISH_MIGRATE, but it turns out that the VM won't do the
transition the second time because it's already stopped.
So this commit also adds vm_stop_force_state() which performs
the transition even if the VM is already stopped.
While there also allow other states to migrate.
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
qemu_savevm_state() has some logic to stop the VM and to (or not to)
resume it. But this seems to be a big noop, as qemu_savevm_state()
is only called by do_savevm() when the VM is already stopped.
So, let's drop qemu_savevm_state()'s stop VM logic.
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
The user may already have paused the VM before starting the
migration process. If s/he does that, then the state will be
'paused' when we finish the migration process. In that case
we want to transition from 'paused' to 'postmigrate' as the
latter is now the real reason why the VM is stopped.
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
No target-specific bits remaining, let's move it over.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This allows to drop various stubs and move the i8359 into hwlib.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This key cleanup step requires to move the IRQ debugging bit from
i8259_set_irq directly to the per-PIC pic_set_irq, to pass the PIC
parameters (I/O base, ELCR address and mask, master/slave mode) as
qdev properties, and to interconnect the PICs with their environment via
GPIO pins.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
