with accesses by teh hypervisor itself. All users of cf8/cfc go
through new access functions which take the appropriate spinlock.
Based on a patch by Haitao Shan <haitao.shan@intel.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
While trying to run a 32-bit PV domU on a 64-bit hypervisor, I
triggered an assert in the hypervisor. The assert dealt with the
maximum number of grants that a domU can have. I made the hypervisor
a bit more graceful by returning an error rather than asserting.
Signed-off-by: Michael Abd-El-Malek <mabdelmalek@cmu.edu>
100HZ PIT timer interrupt set a 10ms upper limit for C state
residency, which makes Xen not power friendly. This patch disable PIT
timer interrupt in the conditions:
- CPU has APIC support, and
- PIT is not used as platform time source
Signed-off-by: Yu Ke <ke.yu@intel.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Jiffies will be obsolete in x86 after PIT timer interupt is disabled,
so this patch replace jiffies usage with NOW() API.
Signed-off-by: Yu Ke <ke.yu@intel.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
definitely does not leak out of tools/libxc. Return to the
ioemu/osdep.c way of checking for posix_memalign() as this works on
Solaris.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
mlock()ed across other hypercall invocations, to avoid aliasing with
other hypercall arguments, causing spurious unlocking.
Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com>
Windows VMs. Return an error if the guest OS tries to transmit a
packet with the transmitter disabled, so that it doesn't spin forever
waiting for it to complete.
Signed-off-by: Steven Smith <Steven.Smith@eu.citrix.com>
Allows TLB entries to be retained across VM entry and VM exit, and Xen
can now identify distinct address spaces through a new
virtual-processor ID (VPID) field of the VMCS.
Signed-off-by: Xin Li <xin.b.li@intel.com>
Signed-off-by: Jun Nakajima <jun.nakajima@intel.com>
Signed-off-by: Xiaohui Xin <Xiaohui.xin@intel.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
This is done separately from moving the other utilities into the
mutlicall since ls is slightly different and was already separate.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
This removes threading from libxenstore.a (but not libxenstore.so)
since pthreads is incompatible with static linking and none of the
command line clients require threads anyway.
It is now possible to build these utilities statically with a uclibc
toolchain which is useful for small userspace utility domains.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
We use the EPT page table as P2M (guest physical to machine
mapping), removing the linear page table when EPT is used for the
domain (see the new file p2m-ept.c). We did this by adding three
operations in the p2m_domain. If VT-d is enabled, the EPT page table
will be used as the VT-d page table as well (i.e. shared).
Signed-off-by: Xin Li <xin.b.li@intel.com>
Signed-off-by: Jun Nakajima <jun.nakajima@intel.com>
Signed-off-by: Xiaohui Xin <Xiaohui.xin@intel.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Currently, tap:ioemu can only be used for domains which have a device
model running. This isn't the case for all domains. The most important
of the missing domains is Dom0 which needs acces e.g. to extract the
kernel from the domain's image.
tapdisk-ioemu is a tool compiled from ioemu source plus a small
wrapper which handles tap:ioemu access for domains without device
model (currently Dom0). You must start tapdisk-ioemu manually before
trying to attach a tap:ioemu disk to Dom0 at the moment. A patch to
blktapctrl will follow to automatically start tapdisk-ioemu when
needed.
Signed-off-by: Kevin Wolf <kwolf@suse.de>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
If xm shutdown command is passed the domain ID, it should still wait
for the shutdown completion of the domain if passed option --wait.
Signed-off-by: Masaki Kanno <kanno.masaki@jp.fujitsu.com>
I have written a patch to split the current meaning of
"dom0-min-mem = 0" to a new option "enable-dom0-ballooning".
Signed-off-by: Masaki Kanno <kanno.masaki@jp.fujitsu.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser