When creating an HVM domain, if e.g. another domain is created before
qemu allocates video memory, the extra 8MB memory ballooning is not
available any more, because it got consumed by the other domain.
This fixes it by taking video memory from the main memory:
- make hvmloader use e820_malloc to reserve some of the main memory
and notify ioemu of its address through the Xen platform PCI card.
- add XENMAPSPACE_mfn to the xen_add_to_physmap memory op, to allow
ioemu to move the MFNs between the original position and the PCI
mapping, when LFB acceleration is disabled/enabled
- add a remove_from_physmap memory op, to allow ioemu to unmap it
completely for the case of old guests with acceleration disabled.
- add xc_domain_memory_translate_gpfn_list to libxc to allow ioemu to
get the MFNs of the video memory.
- have xend save the PCI memory space instead of ioemu: if a memory
page is there, the guest can access it like usual memory, so xend
can safely be responsible to save it. The extra benefit is that
live migration will apply the logdirty optimization there too.
- handle old saved images, populating the video memory from ioemu if
really needed.
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
pass for the HVM guest to successfully boot.
Currently only one test (REP INS across page boundaries) but more will
be added in future.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
OSPM (particularly the S3 firmware_waking_vector).
TODO: rombios must enter protected mode to fetch the vector on S3 resume.
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>
- 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>
- 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>
In particular:
- BIOS release date
- BIOS characteristics
- BIOS extended characteristics (Targeted Content Distribution is
required to be specified to pass WHQL).
- CPU speed
Based on a patch by Kamala Narasimhan <kamala.narasimhan@citrix.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Some versions of Windows 2000 only support no more than 15 cpus in
ACPI table, otherwise it will cause a BSOD
KMODE_EXCEPTION_NOT_HANDLED. This patch decrease the cpu count in the
ACPI DSDT to 15.
Signed-off-by: Xu Dongxiao <dongxiao.xu@intel.com>
At the same time, fix the ACPI processor IDs in the Processor objects.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
No need to generate the correct number dynamically since
present/not-present can be determined from the MADT. What *is*
required is that we have a Processor Object for every present
processor. We statically declare 16 Objects, which should be plenty
for now.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
** Currently only 2 virtual hotplug pci slots(6~7) are created so more
than 2 vtd dev can't be hotplugged, but we can easily extend it in
future.
Three new commands are added:
"xm pci-list domid" show the current assigned vtd device, like:
VSlt domain bus slot func
0x6 0x0 0x02 0x00 0x0
"xm pci-detach" hot remove the specified vtd device by the virtual
slot, like:
xm pci-detach EdwinHVMDomainVtd 6
"xm pci-attach DomainID dom bus dev func [vslot]" hot add a new vtd
device in the vslot. If no vslot specified, a free slot will be picked
up. e.g. to insert '0000:03:00.0':
xm pci-attach EdwinHVMDomainVtd 0 3 0 0
** guest pci hotplug
linux: pls. use 2.6.X and enable ACPI PCI hotplug ( Bus options=> PCI
hotplug => ACPI PCI hotplug driver )
windows: 2000/xp/2003/vista are all okay
Signed-off-by: Zhai Edwin <edwin.zhai@intel.com>
A new platform variable 'hpet' is added, which defaults to 0 for new
guests (that is, hpet disabled). Default is off (no hpet) because
hpet is currently less accurate in keeping time than PIT (because no
timer_mode adjustments).
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
tools/firmware/etherboot by default (the dependency of eb_roms.h on
Config does not seem to always prevent the build from going ahead, for
some reason).
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
HVM-guest boot time. Also make a few PCI0 resource ResourceProducer
type -- this seems to be specified by some randomly-sampled real ACPI
systems.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
This patch adds extboot to Xen. It should be pretty harmless as the
moment because it's never enabled. extboot allows arbitrary block
devices to be used to boot guests including SCSI and PV disks. I've
tested it with both Windows and Linux guests in QEMU.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
hvmloader is modified to dynamically detect this, allowing possibility
of optional full vmxassist replacement in 3.2 stable branch in future.
Currently 'vmxassist=y' is not much use since no replacement is
implemented.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
- portability fix in Makefile: mkhex is not bash specific
- GNU od separates column with one blank, BSD od uses eight blanks.
Change sed to deal with this.
- Add a fourth sed to fix a build error on NetBSD
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
Keir Fraser
Keir Fraser
kfraser@localhost.localdomain
Tim Deegan