allocate_ondemand can be used to allocate addresse space. Primarily
used for mapping MFNs, it can also be used e.g. to map grant refs.
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
Currently xen hypervisor cpufreq can only query APERF/MPERF on running
cpu, which will result in system broken when query on non-current
cpu. This patch fix the APERF/MPERF query bug on non-current cpu.
Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
Currently xen cpufreq has a bug when handleing _psd HW_ALL,
which will result in system broken when _psd HW_ALL.
This patch fix this bug by handling _psd HW_ALL in same way as
SW_ALL coordiantion, for the seek of safety.
Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
Since hpet_broadcast_exit has been moved after interrupt enabled in C3
case, so adjust the handler of hpet broadcast to adapt to this.
Meanwhile, remove a freqently executed debug print line to simplify
the serial output.
Signed-off-by: Wei Gang <gang.wei@intel.com>
When passthrough device is hot removed from HVM domain by "xm
pci-detach" command, following issues occur. The patch fixes them.
- Allocated memory is not deallocated.
- Unbind interrupt with invalid interrupt pin.
- MSI-X memory mapped register area is not unmapped.
Signed-off-by: Yuji Shimada <shimada-yxb@necst.nec.co.jp>
Printing VT-d tables requires map_domain_page() which can not be
called from interrupt context (on x86_32).
Signed-off-by: Espen Skoglund <espen.skoglund@netronome.com>
While plugging a xend memory lead (c/s 18030), I introduced a bug in
the case of managed domains. Managed domains continue to exist after
shutdown and thus should not have their associated VMMetrics object
destroyed until deleted.
The bug actually manifested by a new -> start -> shutdown -> delete
sequence of operations. Shutdown destroyed the VMMetrics object and
delete tried to do the same :-):
Signed-off-by: Jim Fehlig <jfehlig@novell.com>
Also, ensure update_vcpu_system_time() triggers at least once for any
given vcpu, even if the TSC stamp is zero.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
This option should only be used on machines where TSC is known to be
synchronized across all processors. A future TODO is to dynamically
determine if this is the case.
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Local APIC timer may stop at deep C state (C3/C4...) entry. Initial
HPET broadcast working in legacy replacing mode, broke RTC intr, so
was bypassed. This patch add the logic that use platform timer (PIT)
to reenable local APIC timer at C state entry/exit.
Currently, only keep PIT enabled with 100Hz freq. The next step is
trying to dynamically enable/disable PIT while needed, and give it
lower freq.
Signed-off-by: Yu Ke <ke.yu@intel.com>
Signed-off-by: Tian Kevin <kevin.tian@intel.com>
Signed-off-by: Wei Gang <gang.wei@intel.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
1) If the device is PCIe endpoint and supports PCIe FLR, we use that;
else
2) if the device is PCIe endpoint, and all functions on the
device are assigned to the same guest, we use the immediate parent
bus's Secondary Bus Reset to reset all functions of the device (here,
actually we require all the functions of the device be assigned to the
same guest); else
3) if the device is PCI endpoint and is on a host bus
(e.g. integrated devices), and if the device supports PCI Advanced
Capabilities, we use that for FLR; else
4) we use the Secondary Bus Reset (if the PCI device is behind a
PCI/PCI-X bridge, then all devices behind the uppermost such PCI/PCI-X
bridge above this device must be co-assigned).
Signed-off-by: Dexuan Cui <dexuan.cui@intel.com>
Keir Fraser