We create optional sections with this patch. But we already have
optional subsections. Instead of having two mechanism that do the
same, we can just generalize it.
For subsections we just change:
- Add a needed function to VMStateDescription
- Remove VMStateSubsection (after removal of the needed function
it is just a VMStateDescription)
- Adjust the whole tree, moving the needed function to the corresponding
VMStateDescription
Signed-off-by: Juan Quintela <quintela@redhat.com>
OSes typically write 0xdd/0xdf to turn the A20 line off and on. This
has bits 2-3-6-7 on, so that the output port subsection is migrated.
Change the reset value and migration default to include those four
bits, thus avoiding that the subsection is migrated.
This strictly speaking changes guest ABI, but the long time during which
we have not migrated the value means that the guests really do not care
much; so the change is for all machine types.
Reported-by: Igor Mammedov <imammedo@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This patch adds outport to VMState to allow correct saving and restoring
the state of PC keyboard controller.
Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Steps:
1.enable qemu debug print, using simply scprit as below:
grep "//#define DEBUG" * -rl | xargs sed -i "s/\/\/#define DEBUG/#define DEBUG/g"
2. make -j
3. get some warning:
hw/i2c/pm_smbus.c: In function 'smb_ioport_writeb':
hw/i2c/pm_smbus.c:142: warning: format '%04x' expects type 'unsigned int', but argument 2 has type 'hwaddr'
hw/i2c/pm_smbus.c:142: warning: format '%02x' expects type 'unsigned int', but argument 3 has type 'uint64_t'
hw/i2c/pm_smbus.c: In function 'smb_ioport_readb':
hw/i2c/pm_smbus.c:209: warning: format '%04x' expects type 'unsigned int', but argument 2 has type 'hwaddr'
hw/intc/i8259.c: In function 'pic_ioport_read':
hw/intc/i8259.c:373: warning: format '%02x' expects type 'unsigned int', but argument 2 has type 'hwaddr'
hw/input/pckbd.c: In function 'kbd_write_command':
hw/input/pckbd.c:232: warning: format '%02x' expects type 'unsigned int', but argument 2 has type 'uint64_t'
hw/input/pckbd.c: In function 'kbd_write_data':
hw/input/pckbd.c:333: warning: format '%02x' expects type 'unsigned int', but argument 2 has type 'uint64_t'
hw/isa/apm.c: In function 'apm_ioport_writeb':
hw/isa/apm.c:44: warning: format '%x' expects type 'unsigned int', but argument 2 has type 'hwaddr'
hw/isa/apm.c:44: warning: format '%02x' expects type 'unsigned int', but argument 3 has type 'uint64_t'
hw/isa/apm.c: In function 'apm_ioport_readb':
hw/isa/apm.c:67: warning: format '%x' expects type 'unsigned int', but argument 2 has type 'hwaddr'
hw/timer/mc146818rtc.c: In function 'cmos_ioport_write':
hw/timer/mc146818rtc.c:394: warning: format '%02x' expects type 'unsigned int', but argument 3 has type 'uint64_t'
hw/i386/pc.c: In function 'port92_write':
hw/i386/pc.c:479: warning: format '%02x' expects type 'unsigned int', but argument 2 has type 'uint64_t'
Fix them.
Cc: qemu-trivial@nongnu.org
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
After previous Peter patch, they are redundant. This way we don't
assign them except when needed. Once there, there were lots of case
where the ".fields" indentation was wrong:
.fields = (VMStateField []) {
and
.fields = (VMStateField []) {
Change all the combinations to:
.fields = (VMStateField[]){
The biggest problem (appart from aesthetics) was that checkpatch complained
when we copy&pasted the code from one place to another.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Acked-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Bit 7 of Input Port is the keyboard inhibit switch.
0 means keyboard inhibited, while 1 means keyboard enabled.
Incidentaly, this also fixes an error encountered while booting
an Award BIOS: "Keyboard is locked out - Unlock the key".
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Drop it when there's no obvious reason why device_add could not work.
Else keep and document why.
* isa-fdc: drop
* i8042: drop, even though its I/O base is hardcoded (because you
could conceivably still add one to a board that has none), and even
though PC board code wires up the A20 line (because that wiring is
optional)
* port92: keep because it needs additional wiring by port92_init()
* mc146818rtc: keep because it needs to be wired up by rtc_init()
* m48t59_isa: keep because needs to be wired up by m48t59_init_isa()
* isa-pit, kvm-pit: keep (in their abstract base pic-common) because
the PIT needs additional wiring by board code, depending on HPET
presence
* pcspk: keep because of pointer property pit, and because realize
sets global pcspk_state
* vmmouse: keep because of pointer property ps2_mouse
* vmport: keep because realize sets global port_state
* isa-i8259, kvm-i8259: keep (in their abstract base pic-common),
because the PICs' IRQ input lines are set up by board code, and the
wiring of the slave to the master is hard-coded in device model code
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
In an ideal world, machines can be built by wiring devices together
with configuration, not code. Unfortunately, that's not the world we
live in right now. We still have quite a few devices that need to be
wired up by code. If you try to device_add such a device, it'll fail
in sometimes mysterious ways. If you're lucky, you get an
unmysterious immediate crash.
To protect users from such badness, DeviceClass member no_user used to
make device models unavailable with -device / device_add, but that
regressed in commit 18b6dad. The device model is still omitted from
help, but is available anyway.
Attempts to fix the regression have been rejected with the argument
that the purpose of no_user isn't clear, and it's prone to misuse.
This commit clarifies no_user's purpose. Anthony suggested to rename
it cannot_instantiate_with_device_add_yet_due_to_internal_bugs, which
I shorten somewhat to keep checkpatch happy. While there, make it
bool.
Every use of cannot_instantiate_with_device_add_yet gets a FIXME
comment asking for rationale. The next few commits will clean them
all up, either by providing a rationale, or by getting rid of the use.
With that done, the regression fix is hopefully acceptable.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Drop ISADeviceClass::init and the resulting no-op initfn and let
children implement their own realizefn. Adapt error handling.
Split off an instance_init where sensible.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Introduce type constant and cast macro to obsolete DO_UPCAST().
Prepares for ISA realizefn.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Message-id: 1367093935-29091-13-git-send-email-afaerber@suse.de
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Juan Quintela
Paolo Bonzini
Pavel Dovgalyuk
Gonglei
Hervé Poussineau
Markus Armbruster
Andreas Färber