previous event. We enter an infinite loop if the original failed
injection cannot be fixed up by Xen (e.g., because it's not a shadow
pagetable issue).
The RHEL4 HVM guest hang issue was actually a side effect of
change-set 9699. In the rhel4 guest hang rc.sysinit init-script was
calls kmodule program to probe the hardware. The kmodule uses the kudzu
library call probeDevices(). For probing the graphics hardware in the
vbe_get_mode_info() function, sets up the environment and goes into the
vm86 mode to do the int x10 call. For returning back to protected mode
it sets up a int 0xff call. At the time of calling the int 0xff the
guest process pages were not filled up. And it was causing an infinite
loop of vmexits with the IDT_VECTORING_INFO on the int 0xff instruction.
The reason for the infinite loop is changeset 9699. With that
the guest page fault was always getting overridden by the int 0xff gp
fault coming from the IDT_VECTORING_INFO. With the attached patch if VMM
is injecting exceptions like page faults or gp faults then
IDT_VECTORING_INFO field does not override it, and that breaks the
vmexit infinite loop for the rhel4.
Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
Signed-off-by: Jun Nakajima <jun.nakajima@intel.com>
Signed-off-by: Edwin Zhai <edwin.zhai@intel.com>
In the Xen 2.0.x compatibility section of xend (where we try to parse
the s-expressions if they came from an SXP configuration file for Xen
2.0.x), the wrong variable is referenced. This fix corrects the python
script to use the correct variable.
Thanks to Mike Wright for reporting this.
Signed-off-by: Ryan Wilson <hap9@epoch.ncsc.mil>
substitutions. This allows a Xen-patched Linux to build when /bin/sh
is a POSIX shell other than bash.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
When you generate non-linear skb's as netback does, it is up to you
to ensure that truesize reflects the size of paged part of the skb.
Otherwise socket memory accounting in Linux falls apart.
Thanks to the new check that David Miller added to TCP we were able
to catch this bug.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Changeset 9889:42a8e3101c6c reorganized the code on this file, and
missed this spin_unlock_irq(). Without this patch, my machine hangs
completely during boot. With this, it works.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
during a context switch to the SVM domain's vcpu. This patch also
initializes the tlb_control to 1 for the initial do_launch().
Signed-off-by: Tom Woller <thomas.woller@amd.com>
creating domains with networking very easy. This patch:
1) Adds new XenDevice class, with the XenNetDevice subclass. These
classes represent devices for xm-test and are tied to XenDomains.
This can eventually be used for block devices as well. Currently,
devices must be added to domains prior to starting the domain. The
attach and detach needs to be handled.
2) Adds a new NetConfig class to handle configuring the network
environment in which the tests run. This patch only handles ranges
of IPs in a bridged environment. DHCP needs to be added as well as
handling NAT and routed environments.
3) Modifies XenDomain class to handle XenDevices.
4) Adds new configuration options for defining a range of IPs, their
network address, and their netmask.
5) Removes the old Network.py and Network class.
6) Modifies the existing tests to use the new infrastructure.
7) Adds some documentation to help creating domains.
Signed-off-by: Daniel Stekloff <dsteklof@us.ibm.com>
in XenDomain. The devices we will add, like network, will need to run
console commands when a domain is started. So I have made console be
a part of domain object, which it's tied to anyway.
Signed-off-by: Daniel Stekloff <dsteklof@us.ibm.com>
it as HVM or PV rather than using the config time option. The forthcoming
XenNetDevice will need to check. This is also the first step toward running
PV and HVM domains at the same time.
Signed-off-by: Daniel Stekloff <dsteklof@us.ibm.com>
NULL. This problem fixes errors that occur when linking Mini-OS with
ANSI standard code that uses stddef.h.
Signed-off-by: Keir Fraser <keir@xensource.com>
- moves the TPM frontend completely into the char/tpm directory where it
is a plug-in to the generic TPM driver
- removes a now obsolete include file
- adapts part of the documentation
- fixes some locking problems where copy_to/from_user was called with
IRQs blocked
Signed-off-by: Stefan Berger <stefanb@us.ibm.com>
including removing memory leaks concerning these areas. Also fixes
problem where the HSA MSR was not initialized properly for cores>0.
Signed-off-by: Tom Woller <thomas.woller@amd.com>
If a transaction end command fails, the semaphore which keeps track
of whether we're in a transaction or not was not getting updated.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
copy_from/to_user while preventing interrupts and fix allocation of
memory from within a task and other issues.
Signed-off-by: Stefan Berger <stefanb@us.ibm.com>
domUs with 64MB of memory,
and assume that all of that memory is available in the domU. They then
perform various xm memset tests
based on the assumed starting conditions.
When netback & blkback are comiled into the domU kernel, they eat about
5MB. This mismatch will cause
01_memset_basic_pos.test to fail every time. 03_memset_random_pos.test
will probably fail, but can
pass with some lucky numbers from the random number generator.
This patch changes both tests to read the starting memory allocation from
the balloon driver in the domU.
Signed-off-by: Jim Dykman <dykman@us.ibm.com>
leading bits are set or clear. It additionally changes the formatting so that trailing spaces are avoided, and it
suppresses the printing of empty records. It also prevents combining records with identical EIP but from different
domains.
It further changes the type of some variables from plain int to unsigned int, as that is yielding more efficient code
on x86-64 (signed 32-bit array indices require explicit sign extension, whereas in most cases an extra copy can be
avoided when the index type is unsigned, since all 32-bit operations already zero-extend their results).
Signed-off-by: Jan Beulich <jbeulich@novell.com>
legible. It additionally changes the formatting so that trailing spaces are avoided.
Also changing the type of some variables from plain int to unsigned int, as that is yielding more efficient code on
x86-64 (signed 32-bit array indices require explicit sign extension, whereas in most cases an extra copy can be avoided
when the index type is unsigned, since all 32-bit operations already zero-extend their results).
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Make header path for kernel's privcmd/evtchn headers generic.
Remove pointless xi_*() interface that was using private libxc
interfaces.
Signed-off-by: John Levon <john.levon@sun.com>
a) 64-bit switch_to scheduler macro (by Aravindh Puthiyaparambil)
b) implements 64-bit hypervisor_callback
c) fixes thread creation issues (thread_starter used to perform
initialisation)
Signed-off-by: Grzegorz Milos <gm281@cam.ac.uk>
operation automatically gets you a fresh page at the same
pseudo-physical address as Keir suggested.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
expected. Xend actually creates two children and the XEND_DAEMONIZE
flag only prevents one of the children from being created. This
patch causes none of the children to be created. With this patch,
Xend functionality is performed in the process executed from the
command line (i.e., /usr/sbin/xend). This patch makes it possible to
debug Xend with pdb.
Signed-off-by: Randy Thelen <rthelen@netapp.com>
