that OFFLINE is only sent if the ONLINE event has been sent. Secondly, this
fixes one possible cause of the reopened bug #549 as it prevents be->netif
being dereferenced inside netback_uevent. Early reports suggest that this is
not the only cause of #549, so that bug remains open for now.
Signed-off-by: Ewan Mellor <ewan@xensource.com>
module has a tri-state configuration so it can be a loadable module.
Views the hypervisor as hardware device, uses sysfs as a scripting
interface for user space tools that need these attributes.
Some user space apps, particularly for systems management, need to
know if their kernel is running in a virtual machine and if so in
what type of virtual machine. This property is contained in the
file /sys/hypervisor/type.
The file hypervisor_sysfs.c creates a generic hypervisor subsystem
that can be linked to by any hypervisor. The file xen_sysfs.c exports
the xen-specific attributes.
Signed-off-by: Mike D. Day <ncmike@us.ibm.com>
legacy hypercall in that it takes a pointer to a block of extra arguments
rather than an opaque unsigned long. The old hypercall still exists, for
backwards compatibility.
The new hypercall supports new sub-command SCHEDOP_poll, which can be used to
wait on a set of event-channel ports with an optional timeout. This is exported
in XenLinux as HYPERVISOR_poll, and used in the pcifront driver to wait on a
response from the pciback driver.
Can also be used for debuggers. :-)
Signed-off-by: Keir Fraser <keir@xensource.com>
Signed-off-by: John Levon <john.levon@sun.com>
final increment of the cpu local processed_system_time to move the cpu
local system time ahead a bit further than expected - but still proper
wrt. wall clock time.
This gives problems on a next timer interrupt, when stolen and blocked
both get rounded up and end up incrementing the per cpu
processed_system_time too far.
These simple checks make sure that the cpu local processed_system_time
never gets advanced too far. Not advancing the variable now should be
fine, since we'll increment it at the next timer tick...
This patch has made the "time went backwards" error messages go away
completely.
Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Keir Fraser <keir@xensource.com>
the low half before the high half. Otherwise the compiler may reorder the writes
and validation in Xen will fail.
From: Jan Beulich
Signed-off-by: Keir Fraser <keir@xensource.com>
is invoked. This causes a problem in the resume part of a suspend-resume
cycle due to the backend not seeing that a state in the frontend was
set. This patch fixes this in the TPM frontend driver.
Signed-off-by: Stefan Berger <stefanb@us.ibm.com>
Instead of putting the page outside of the guests pseudo-physical address
space, we put it next to the other pages filled by the domain builder,
such that the page is already mapped in the initial pagetables and/or a
lowmem-type memory mapping.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
PCI config writes to succeed by default. Currently this is the only way to allow
control of a device that has device-specific registers in the config space from
a driver domain.
echo Y >/sys/module/pciback/parameters/permissive
Signed-off-by: Keir Fraser <keir@xensource.com>
Many of the changes to entry.S can be removed because we don't support
CONFIG_PREEMPT anymore.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
