Attached patch allows to pass arguments to xenconsoled
via XENCONSOLED_TRACE env. variable analogous to xenstored.
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
When a p2m superpage entry is shattered, it's important not to
unshadow any parts of the 2MB region that are still there afterwards.
Otherwise shattering a superpage that contains the guest's top-level
pagetable will cause the guest to be killed.
Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com>
This ensures correct actions will be taken if init_vtd_hw()
fails. Especially, when 'iommu=force' is used, Xen should not
boot if init_vtd_hw() fails.
Signed-off-by: Weidong Han <weidong.han@intel.com>
On ia64, direct Linux boot is not supported, and 'Flash.fd' or
'guest_firmware.bin' has been used as a value of the 'kernel'
option. Cset:17016 ignores those strings and overrides them with
"/usr/lib/xen/boot/hvmloader".
Signed-off-by: Kazuhiro Suzuki <kaz@jp.fujitsu.com>
Signed-off-by: KUWAMURA Shin'ya <kuwa@jp.fujitsu.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
I noticed that parallel scrubbing pages is not efficient
due to spinlock contention. (also memory bandwidth?)
Actually heap_lock becomes a bottleneck.
In my investigation, it often takes 1 millisec just to acquire
the lock on ia64 with 8cpus. It's very wasteful.
Signed-off-by: Kouya Shimura <kouya@jp.fujitsu.com>
Straight port from Linus's tree:
commit 4b9f12a3779c548b68bc9af7d94030868ad3aa1b
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Thu Jul 24 17:29:00 2008 -0700
x86/oprofile/nmi_int: add Nehalem to list of ppro cores
..otherwise oprofile will fall back on that poor timer interrupt.
Also replace the unreadable chain of if-statements with a
"switch()"
statement instead. It generates better code, and is a lot clearer.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
We're printing out the ACPI table signature after we overwrite it
with "OEMx". Let's print it out before so we know that the table was.
Also limit print to 4 chars so we don't get garbage output.
Signed-off-by: Alex Williamson <alex.williamson@hp.com>
x86 IOMMU support added a lot of assumptions about what PCI buses look
like and where to find bridge devices. On ia64, we don't yet have
virtualization friendly IOMMUs, so for the moment, we just want to
keep "unsafe" PV PCI pass through working as well as it did in Xen
3.2. Looking at the code, it almost seems like x86 has thrown out
support for the old style driver domain. Things that don't
necessarily work on every PCI compliant architecture:
* You can't assume that just because there's a device at 01:01.0
that there's also a bridge at 01:00.0 and blow-up when you
don't find it. On HP ia64 boxes, PCI root bridges are not
necessarily exposed as a PCI device. This pretty much means
we can't call into any of the "FLR" code paths.
* BAR alignment: it's hard to have BAR alignment when your page
size is 16k. This wasn't a requirement for previous PV driver
domains, so I assume it's only for IOMMU support.
This is ugly, so I'm open to suggestions. It seems that all of these
architecture checks could be replaced by checking some "iommu_present"
variable to test whether the extra requirements are necessary.
Signed-off-by: Alex Williamson <alex.williamson@hp.com>
There is a small bug on the serial emulation code that prevents kgdb
from working correctly over the serial.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
We can decide to make off_t 64bit instead of implementing the LFS
tricks. Name corresponding functions foo64 to permit simple caml
programs linking.
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
I've never been sure why we have such a big scary warning around this,
when I have yet to see any system that does provide opcode decoding.
Let's remove it.
Signed-off-by: Alex Williamson <alex.williamson@hp.com>
On bootup, I get a couple of these:
(XEN) ACPI Warning (tbutils-0219): Incorrect checksum in table [APIC] - CE, should be 04 [20070126]
(XEN) ACPI Warning (tbutils-0219): Incorrect checksum in table [APIC] - CE, should be 04 [20070126]
I don't remember seeing them before, but they're pretty easy to fix.
The problem is we update the lsapics, causing the checksum to be wrong,
then we look for platform interrupt sources, which spits out a warning,
and finally we look for the MADT again to fix the checksum, which also
prints a warning. If we grab a pointer to the MADT before these, we can
update the checksum after each step and avoid the warnings.
Signed-off-by: Alex Williamson <alex.williamson@hp.com>
We have boxes that report EFI version 2.00 now, so adopt upstream linux
patch to only warn on versions less that 1.00. Based on linux-2.6.git
873ec746158403af82c57ce26780166aafc159e1.
Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Stub out new hypercalls in the hypervisor. The only odd one here is
map/unmap_pirq. This seems to be for MSI support, which I don't believe
we currently support for driver domains, so this is actually similar to
the x86 code path. The tools code doesn't allow us to return -ENOSYS
here :(
Signed-off-by: Alex Williamson <alex.williamson@hp.com>
To guarantee that the percpu is pinned down,
move its virtual address from the xen identity mapped area
to the xen va area which is pinned by DTR[IA64_TR_KERNEL].
Then unnecessary tlb miss fault will be avoided.
Sometimes per cpu area is accessed from very critial
point where tlb miss isn't allowed.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Make the 'iommu' boot parameter take a comma separated value
indicating whether iommu is required to boot and whether to enable
iommu for pv domains.
Signed-off-by: Espen Skoglund <espen.skoglund@netronome.com>
Add "iommu=1" option in grub, due to VT-d is not enabled by default.
In addition, describes how to enable MSI/MSI-x for assigned devices.
Signed-off-by: Weidong Han <weidong.han@intel.com>
Currently we are trying to read the same value twice in the
serial_load function, this patch fixes that.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Keir Fraser
Isaku Yamahata