Otherwise, ioemu can be out of sync with the hypervisor after
restoring guest state, if INTx lines were asserted when the state was
saved. This prevents ioemu from setting the line to zero in Xen
(because it thinks the line is already zero). This can allow th eguest
to enter an endless IRQ loop and hang.
Signed-off-by: Kazuhiro Suzuki <kaz@jp.fujitsu.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Windows on ia64 can't boot since cset 17397:61a3e041ea12.
The memory for video RAM must be added as the x86 does.
Signed-off-by: Kouya Shimura <kouya@jp.fujitsu.com>
Avoids deadlocks by avoiding calling into scheduler recursively
(__trace_var() is sometimes called with scheduler locks held).
Signed-off-by: Naoki Nishiguchi <nisiguti@jp.fujitsu.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
When a domain wants to use a tap:ioemu disk but has no device model,
start a tapdisk-ioemu instance as provider. Also, move the creation
and removal of communication pipes to xend so that qemu-dm doesn't
need the unwanted SIGHUP handler anymore.
Signed-off-by: Kevin Wolf <kwolf@suse.de>
This patch extends the ACM binary policy format with an embedded hash
of the corresponding XML policy in order to tie them together. This
allows xend to determine whether it has the correct XML policy in its
repository and react appropriately if it does not have it.
Signed-off-by: Stefan Berger <stefanb@us.ibm.com>
The typo is benign because sh_page_fault() gates the call to
shadow_get_and_create_l1e() on an equivalent test.
Signed-off-by: Tim Deegan <tim.deegan@citrix.com>
When a domain wants to use a tap:ioemu disk but has no device model,
start a tapdisk-ioemu instance as provider. Also, move the creation
and removal of communication pipes to xend so that qemu-dm doesn't
need the unwanted SIGHUP handler anymore.
Signed-off-by: Kevin Wolf <kwolf@suse.de>
Also clean up cmpxchg() callback handling so we can get rid of teh
specific cmpxchg8b handler.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
1. We cannot rely on BSF/BSR leaving the destination register intact
if the source is zero (according to Intel manuals)
2. We race clear_bit() in find_first_bit(), which may occur after
SCAS but before BSF. So we must handle zero input to BSF.
Signed-off-by: Naoki Nishiguchi <nisiguti@jp.fujitsu.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
than discard characters in the console daemon buffers.
New option: -o, --overflow-data=discard|keep
This option changes the behaviour when dealing with data that overflow
the max capacity of the buffer. If overflow-data is set to discard
(the default), the current behaviour is used: we discard some data in
the middle of the buffer.
If overflow-data is set to keep, we stop listening to the ring until
we free some space in the buffer. This can cause the ring to fill up
and the guest kernel internal buffer to fill up as well. When this
happens the guest kernel stops reading characters from the console
device so the application generating data hangs. When xenconsoled
resumes reading from the ring, the guest kernel will be able to resume
reading from the console device as well. At that point the guest
application will be allowed to continue.
The risk of making this behaviour the default is that existing kernel
drivers may assume they can rely on timely ring updates by the console
daemon and thus themselves block on the ring being emptied.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Run check_blktap_sharing() only when a disk is added to guest with blktap.
A check_blktap_sharing() doesn't have to be run when a disk is removed.
Signed-off-by: Hirofumi Tsujimura <tsujimura.hirof@jp.fujitsu.com>
Signed-off-by: Takanori Kasai <kasai.takanori@jp.fujitsu.com>
In addr_to_dma_page_maddr(), pte should not be used after
unmap_vtd_domain_page(parent). In addition, timeout is added in some
infinite loops.
Signed-off-by: Weidong Han <weidong.han@intel.com>
If a hang-up of a guest OS occurs, we will restart the guest OS by
using
the following commands.
1. xm destroy
2. xm create or xm start
To reduce the number of xm commands to use, this patch adds a new
command. The command is "xm reset". The command executes destruction
of a domain, and then creation of the domain.
Signed-off-by: Masaki Kanno <kanno.masaki@jp.fujitsu.com>
Added undocumented fields and methods for default_netmask and
default_gateway to the Network class. Remove an unimplemented method
from the XSPolicy class and remove the 'optional' from 'oldlabel'
parameters.
Signed-off-by: Stefan Berger <stefanb@us.ibm.com>
changeset e1962ac0fb1c breaks cross-builds because it assumes the
system strip tool applies to the generated binaries. This assumption
isn't made anywhere else in the xen tools build.
Signed-off-by: Aron Griffis <aron@hp.com>
on the stack. This allows us to add emulation for a number of extra
FPU opcodes without inflating the executable code size.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
MSI interrupt will be triggered on IO page fault and the fault address
will be written into an in-memory event log buffer automatically by
hardware. This patch handles the MSI interrupt simply by reading event
log entry and printing out the parsed result.
Signed-off-by: Wei Wang <wei.wang2@amd.com>
- Move MTRR MSR initialisation into hvmloader.
- Simplify initialisation logic by overlaying UC on default WB rather
than vice versa.
- Clean up hypervisor HVM MTRR/PAE code's interface with rest of
hypervisor.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
which with the offset support also permits to expose the VGA vram and
non-shared vram throught PVFB at the same time, switching between both
as appropriate.
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
Keir Fraser