get_page_type() on pagetable pages (pending support for preemptive
get_page_type(), as dom0 builder would be an awkward place to deal
with preemption).
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Must save all 64 bits of RBX, not just the EBX sub-part.
Based on bug diagnosis and patch by Juergen Keil <jk@tools.de>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
* Cleanly define a scratch area for temporary storage
* Raise Etherboot ROM out of the way of larger VGA BIOSes
Also detect virtual VGA adaptors more cleanly.
Signed-off-by: Jean Guyader <jean.guyader@eu.citrix.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Implement statistic interface for cx via sysctl & libxc. Provide a
easy way to collect processor cx info within dom0.
Signed-off-by: Wei Gang <gang.wei@intel.com>
Local APIC timer may stop at deep C state (C3/C4...) entry/exit. this
patch add the logic that use platform timer (HPET) to reenable local
APIC timer at C state entry/exit.
Signed-off-by: Wei Gang <gang.wei@intel.com>
Signed-off-by: Yu Ke <ke.yu@intel.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
- add S3 package in ACPI DSDT table. Guest OS will get S3 value from
this package and write the value to PM1A control register to
trigger S3 suspend.
- Add S3 resume logic in rombios post code. the CMOS shutdown register
is used to indicate if this is a S3 resume.
- if it is s3 resume, rombios will get wakeup vector from ACPI FACS
table and jump to wakeup vector. Per ACPI spec, the wakeup vector
jumping must be the forms CS:IP, in which CS=3D(wakeup vector>>4)
IP=3D(wakeup vector)&0xF, for example, for vector=3D0x12345,
CS:IP=3D0x1234:0x5
Note: clobber_entry_point will clobber the post entry, which make S3
resume not work. We will directly jmp to POST Entry if it in S3
Resume path.
Signed-off-by: Yu Ke <ke.yu@intel.com>
Signed-off-by: Ke Liping <liping.ke@intel.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
- add S3 suspend logic in PM1A control register. when guest write
specific value to this register,
QEMU will trigger S3 sleep by
* reset all qemu device
* set CMOS shutdown status as S3 resume, so that rombios will do
S3 resume later
* request Xen to S3-suspend the guest
Signed-off-by: Yu Ke <ke.yu@intel.com>
Signed-off-by: Liping Ke <liping.ke@intel.com?
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Changeset 17289:d97e61001d81: introduced vfb configuration parameter
videoram, defaulting to zero. Value zero was interpreted as
unlimited. Changeset 17630:53195719f762 accidentally dropped the
special case for zero, which broke guests that don't specify videoram,
or specify videoram=0. Restore the old behavior.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
We do this by emulating the NMI mask which blocks NMI delivery until
next IRET on native hardware.
Signed-off-by: Gianluca Guida <gianluca.guida@eu.citrix.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
The reservation of space for the kexec area in
kexec_reserve_area is incorrect. It specifies the
start address and size to reserve_e820_mem when
the args should be start and end.
Bug found and fixed by Dave Anderson.
Signed-off-by: Bill Burns <bburns@redhat.com>
Handle 64bit operations in stdvga instead of throwing away the
upper 32bits.
This fixes some noisy xen messages like "invalid io size: 8".
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
compilation fix of 17669:d0817f08599a.
The change set needs the definition of do_get_pm_info().
Define the stub function.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Sampling and collecting dynamic Px statistic data, including
Px state value, Px count, Px residency time, Px transition
matrix, etc. Provide Px statistic data to user through libxc.
Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
This patch fixes several bugs in serial.c
(1) A typo in serial_save() where qemu_get_8s is called (should be
qemu_put_8s)
(2) No support provided in serial_load() for version_id == 1 (should
unmarshal a 1 byte s->divider and should provide a default value
for s->fcr)
(3) Call serial_ioport_write() to initialize s->fcr. It is not
sufficient to load its value; other hidden values (such as
s->recv_fifo.itl) must be re-initialized.
Signed-off-by: Ben Guthro <bguthro@virtualiron.com>
Signed-off-by: Robert Phillips <rphillips@virtualiron.com>
The device configurations of suspended virtual machines are
inaccessible even though for example the UUIDs of the VIFs and VBDs
are known and returned when VM.get_VIFs()/get_VBDs() is called, though
when trying to access their records for example, then handle is
reported as being invalid. This patch fixes this.
Signed-off-by: Stefan Berger <stefanb@us.ibm.com>
According to ACPI spec., x_firmware_waking_vector in FACS is for
waking up in protected mode and firmware_waking_vector is for in real
mode. Xen once use x_firmware_waking_vector which can make S3 failed
on some platform. This patch fixed the bug by using non-x one.
Signed-off-by: Huacai Chen <huacai.chen@intel.com>
The recent fix to validate the frontend's frame buffer description
neglected to limit the frame buffer size correctly. This lets a
malicious frontend make the backend attempt to map an arbitrary amount
of guest memory, which could be useful for a denial of service attack
against dom0.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
1. use jump table to dispatch virtualization faults.
2. for virtualization faults, handler is executed with psr.i=0, psr.ic=0,
psr.bn=0. less context switch.
3. use register stack instead of memory stack to switch context.
4. Use C code to handle faults as possible, to reduce maintanance efforts,
remove assembly handlers for rsm , ssm, mov to psr, mov to rr.
5. add fast path C handler for rsm, ssm, mov to psr, rfi.
Signed-off-by: Anthony Xu <anthony.xu@intel.com>
fix sal emulation, SAL_SET_VECTORS, SAL_MC_SET_PARAMS.
It allowed any domains to change system wide state. But only
dom0 is able to change it.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
This patch removes warnings in replace_grant_host_mapping().
> mm.c: In function 'replace_grant_host_mapping':
> mm.c:2194: warning: 'new_page_mfn' may be used uninitialized in this function
> mm.c:2190: warning: 'old_pte.pte' may be used uninitialized in this function
> mm.c:2188: warning: 'cur_pte.pte' may be used uninitialized in this function
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
The code for working out the base address of a 64-bit BAR currently
puts the two halves together in the wrong order and leaves the type
bits in the resulting value. It also treats
PCI_BASE_ADDRESS_MEM_TYPE_64 as a flag rather than an enumeration
value.
Signed-off-by: Neil Turton <nturton@solarflare.com>
Based on initialized cpufreq infrustructure, setup a timer on
each PSD domain, periodicly sample cpu load and driver cpu to
some Px state according to cpu load and cpu coordination.
Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
Initializing basic Px data structure, setup cpufreq infrastructure:
* cpufreq data structure initializing, including freq table and policy;
* basic driver and tools, to measure freq or drive to Px target;
* setup _PSD domain to coordinately work;
Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
Add platform op hypercall case to get ACPI Px info from dom0.
Chose Px controller from dom0 (cpufreq=dom0-kernel)
or hypervisor (cpufreq=xen).
Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
A domain fails to restore on IA64 since cset 17524:18727843db60.
This patch fixes it temporarily. Guest CPUID configuration for IA64
might be implemented in the future.
Signed-off-by: Kouya Shimura <kouya@jp.fujitsu.com>
Keir Fraser
Isaku Yamahata