This should fix compilation problem in case of CONFIG_USER_ONLY.
Currently INIT/SIPI is handled in the context of CPU that sends IPI.
This patch changes this to handle them like all other events in a main
cpu exec loop. When KVM will gain thread per vcpu capability it will
be much more clear to handle those event by cpu thread itself and not
modify one cpu's state from the context of the other.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Support a new feature flag for indirect ring entries. These are ring
entries which point to a table of buffer descriptors.
The idea here is to increase the ring capacity by allowing a larger
effective ring size whereby the ring size dictates the number of
requests that may be outstanding, rather than the size of those
requests.
This should be most effective in the case of block I/O where we can
potentially benefit by concurrently dispatching a large number of
large requests. Even in the simple case of single segment block
requests, this results in a threefold increase in ring capacity.
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Change the vring descriptor helpers to take the physical
address of the descriptor table rather than a virtqueue.
This is needed in order to allow these helpers to be used
with an indirect descriptor table.
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The code how it is today, is totally painful to read and keep.
To begin with, the code is duplicated with the option rom loading
code that linux_boot and vga are already using.
This patch introduces a "bootable" state in NICInfo structure,
that we can use to keep track of whether or not a given nic should
be bootable, avoiding the introduction of yet another global state.
With that in hands, we move the code in vl.c to hw/pc.c, and use
the already existing infra structure to load those option roms.
Error checking code suggested by Mark McLoughlin
Signed-off-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Also zero pci_irq_levels on reset to avoid stuck irq after reset.
Based on 15a1956af9 by Gleb Natapov.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Also zero pci_irq_levels on reset to avoid stuck irq after reset.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Yaniv Kamay <ykamay@redhat.com>
The device is not reset on system reset currently.
Without this patch RHEL4.8 hangs after reboot if -usbdevice table
is in use.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
This reverts commit 3dcd219f09.
It is incorrect to call qemu_irq functions (or any other functions that
access other device state) during savevm/loadvm.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
vga_screen_dump_blank() was not generating a valid PPM file: the width of the
image made no sense (why it was multiplied by sizeof(uint32_t)?), and there was
only one sample per pixel, instead of three.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Section 10.8.25 ("START/STOP UNIT Command") of SFF-8020i states that
if the device is locked we should refuse to eject if the device is
locked.
ASC_MEDIA_REMOVAL_PREVENTED is the appropriate return in this case.
In order to stop itself from ejecting the media it is running from,
Fedora's installer (anaconda) requires the CDROMEJECT ioctl() to fail
if the drive has been previously locked.
See also https://bugzilla.redhat.com/501412
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This function is used to manage a PCI BAR, so make the more generic
pci_register_io_region() available to other uses.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The parameter is always zero except when registering the three internal
io regions (ROM, unassigned, notdirty). Remove the parameter to reduce
the API's power, thus facilitating future change.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
On reset:
Periodic Interrupt Enable (PIE) bit is cleared to zero
Alarm Interrupt Enable (AIE) bit is cleared to zero
Update ended Interrupt Flag (UF) bit is cleared to zero
Interrupt Request status Flag (IRQF) bit is cleared to zero
Periodic Interrupt Flag (PF) bit is cleared to zero
Alarm Interrupt Flag (AF) bit is cleared to zero
Square Wave output Enable (SQWE) zero
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Variable akitapda_machine is only used locally,
so the static attribute avoids a compiler warning.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
(patch is on top of "Apic creation should not depend on pci" series)
Currently cpu_index is used as cpu apic id on x86. This is incorrect
since apic ids not have to be continuous (they can also encode cpu
hierarchy information). This patch uses cpuid_apic_id for initial apic id
value. For now cpuid_apic_id is set to be equal to cpu_index so behaviour
is fully backward compatible, but it allows us to add qemu option to
provide other values for cpu apic id.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This new option may be used to disable the virtio-balloon device.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
SDL header files can be included in two different ways:
* like this: #include <SDL/SDL.h>
* like this: #include <SDL.h>
The 1st alternative is simple and works in many cases.
The 2nd alternative needs sdl-config to get the
correct compiler flags. It is the recommended way
to write SDL includes and standard for QEMU.
The patch fixes two non-standard SDL includes.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Needed for savevm/loadvm + migration: In that case the queue might
already have packets on (re-)connect. The guest wouldn't notify us
because notifications are only sent when stuffing a packet into an
empty queue.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Rationale: move device information from code to data structures.
v2: Adapt the drivers missed in the first version.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* net-queue: (28 commits)
virtio-net: Increase filter and control limits
virtio-net: Add new RX filter controls
virtio-net: MAC filter optimization
virtio-net: Fix MAC filter overflow handling
virtio-net: reorganize receive_filter()
virtio-net: Use a byte to store RX mode flags
virtio-net: Add version_id 7 placeholder for vnet header support
virtio-net: implement rx packet queueing
net: make use of async packet sending API in tap client
net: add qemu_send_packet_async()
net: split out packet queueing and flushing into separate functions
net: return status from qemu_deliver_packet()
net: add return value to packet receive handler
net: pass VLANClientState* as first arg to receive handlers
net: re-name vc->fd_read() to vc->receive()
net: add fd_readv() handler to qemu_new_vlan_client() args
net: only read from tapfd when we can send
net: vlan clients with no fd_can_read() can always receive
net: move the tap buffer into TAPState
net: factor tap_read_packet() out of tap_send()
...
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Increase the size of the perfect filter table and control queue depth.
This should give us more headroom in the MAC filter and is known to be
needed by at least one guest user. Increasing the control queue depth
allows a guest to feed several commands back to back if they so desire
rather than using the send and wait approach Linux uses.
Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
