I also added a one-liner that causes xenbus_dev_(error|fatal) to output
to the kernel log buffer (and thus syslog) which was invaluable to me
while debugging (by default, error messages only appear in xenstore).
Signed-off-by: Ryan Wilson <hap9@epoch.ncsc.mil>
save/restore/migrate iterations.
Should fix various crashes observed with save/restore/migrate of multi
VCPU guests.
Signed-off-by: Steven Hand <steven@xensource.com>
domain0. Provide a temporary glue between our swiotlb
implementation and x86/64's dma_ops dynamic dma-mapping
infrastructure.
Signed-off-by: Keir Fraser <keir@xensource.com>
We check it is a member of a small set of permitted hypercalls.
Fix libxenstat to not use multicalls (not permitted, and not
need for efficiency in libxenstat).
Based on an original patch by Chris Wright.
Signed-off-by: Keir Fraser <keir@xensource.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
It has been superceded by run-time flag
XENFEAT_auto_translated_physmap.
This patch changes behaviour slightly:
1. set_pmd/set_pgd/set_pud always use mmu_ops, even when
XENFEAT_writable_page_tables is available. Unclear whether
we want to add a test to avoid this.
2. xen_l1_entry_update always uses mmu_op. Again, could gate
this on XENFEAT_writable_page_tables.
3. We always pin/unpin pagetables. Could gate this on a
new XENFEAT flag.
Signed-off-by: Keir Fraser <keir@xensource.com>
!console_use_vt. The dummy_con just confuses the VT
implementation and you get no console output without manually
specifying a console= boot parameter.
Signed-off-by: Keir Fraser <keir@xensource.com>
Also fix the i386 play_dead() function to call idle_task_exit(),
which ensures the CPU exits while running the init_mm. Otherwise
other tasks may get stuck.
Signed-off-by: Ryan Grimm <grimm@us.ibm.com>
Signed-off-by: Keir Fraser <keir@xensource.com>
Remove the export of evtchn_do_upcall().
Given the constraints on the use of this function (should run at least
with irqcount adjusted properly, preferrably also on irq stack), it
doesn't seem reasonable for this function to be exported.
From: Jan Beulich <JBeulich@novell.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
Add a call to exit_idle() when evtchn_do_upcall() calls
evtchn_device_upcall() instead of do_IRQ().
From: Jan Beulich <JBeulich@novell.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
Especially in the light of the recent no-idle-tick preparations in
native x86-64 it is important that exit_idle() has proper state
available. For this reason, the processor's irqcount must be adjusted
within upcalls, and for consistency and similarity with native code
this call should also execute on the processor's irq stack.
At once the patch slightly simplifies the pre-existing code by copying
%rdi into %rsp instead of adding 8 to %rsp, and by using %rdi instead
of %rsp (avoiding a needless resource dependency) for storing the event
mask.
From: Jan Beulich <JBeulich@novell.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
Change /proc/xen/xsd_mfn to /proc/xen/xsd_kva containing the kernel
virtual address of the dom0 xenstore page. Update xenstored to use
/proc/xen/xsd_kva.
Signed-off-by: Keir Fraser <keir@xensource.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
thread, it must not be used in code that can be called in the context
switch path (otherwise the 32-bitness of the outgoing task is used
here rather then the 32-bitness of the incoming one, possibly
resulting in large parts of the page tables not getting converted to
read-only).
Signed-off-by: Jan Beulich <JBeulich@novell.com>
It saves very little space, no distro will disable it
in their unified build, and it's rather a pain to
implement it properly.
I've left the PRIVILEGED_GUEST option for now, as it
provides some indication of where our platform-bringup
hacks are in our Linux tree. We may wish to exclude
those from upstream merge in the first instance.
Signed-off-by: Keir Fraser <keir@xensource.com>
This boots dom0 and domU on an rx2600.
Revert several files that were accidentally reverted by the merge-ups
(that weren't fixed by cset 8743). Those are included here with the
2.6.15 patch re-applied as well as changes between 2.6.15 and 2.6.16-rc2.
Specifically, these are pal.h, processor.h and system.h.
This patch also reverts changes to include/asm-ia64/hypercall.h and
hypervisor.h from cset 8742.
Signed-off-by: Alex Williamson <alex.williamson@hp.com>
with those coming from the 2.6.15 kernel. Some files can now be
taken from 2.6.15 directly and can therefore be removed.
Signed-off-by: Stefan Berger <stefanb@us.ibm.com>
