linux-toradex.git/include/xen/interface/xen.h, branch v4.4.5

xen/PMU: Initialization code for Xen PMU

2015-08-20T11:25:20+00:00

Map shared data structure that will hold CPU registers, VPMU context,
V/PCPU IDs of the CPU interrupted by PMU interrupt. Hypervisor fills
this information in its handler and passes it to the guest for further
processing.

Set up PMU VIRQ.

Now that perf infrastructure will assume that PMU is available on a PV
guest we need to be careful and make sure that accesses via RDPMC
instruction don't cause fatal traps by the hypervisor. Provide a nop
RDPMC handler.

For the same reason avoid issuing a warning on a write to APIC's LVTPC.

Both of these will be made functional in later patches.

Signed-off-by: Boris Ostrovsky 
Reviewed-by: David Vrabel 
Signed-off-by: David Vrabel

xen/PMU: Sysfs interface for setting Xen PMU mode

2015-08-20T11:24:26+00:00

Set Xen's PMU mode via /sys/hypervisor/pmu/pmu_mode. Add XENPMU hypercall.

Signed-off-by: Boris Ostrovsky 
Reviewed-by: Konrad Rzeszutek Wilk 
Signed-off-by: David Vrabel

xen: sync with xen headers

2015-08-20T11:24:16+00:00

Use the newest headers from the xen tree to get some new structure
layouts.

Signed-off-by: Juergen Gross 
Reviewed-by: David Vrabel 
Acked-by: Konrad Rzeszutek Wilk 
Signed-off-by: David Vrabel

xen: synchronize include/xen/interface/xen.h with xen

2015-03-16T14:49:13+00:00

The header include/xen/interface/xen.h doesn't contain all definitions
from Xen's version of that header. Update it accordingly.

Signed-off-by: Juergen Gross 
Reviewed-by: David Vrabel 
Signed-off-by: David Vrabel

xen: sync some headers with xen tree

2014-10-03T11:34:52+00:00

To be able to use an initially unmapped initrd with xen the following
header files must be synced to a newer version from the xen tree:

include/xen/interface/elfnote.h
include/xen/interface/xen.h

As the KEXEC and DUMPCORE related ELFNOTES are not relevant for the
kernel they are omitted from elfnote.h.

Signed-off-by: Juergen Gross 
Signed-off-by: David Vrabel

arm: xen: implement multicall hypercall support.

2014-04-24T12:09:46+00:00

As part of this make the usual change to xen_ulong_t in place of unsigned long.
This change has no impact on x86.

The Linux definition of struct multicall_entry.result differs from the Xen
definition, I think for good reasons, and used a long rather than an unsigned
long. Therefore introduce a xen_long_t, which is a long on x86 architectures
and a signed 64-bit integer on ARM.

Use uint32_t nr_calls on x86 for consistency with the ARM definition.

Build tested on amd64 and i386 builds. Runtime tested on ARM.

Signed-off-by: Ian Campbell 
Cc: Stefano Stabellini 
Cc: Konrad Rzeszutek Wilk 
Cc: Boris Ostrovsky 
Signed-off-by: David Vrabel

xen/events: Add the hypervisor interface for the FIFO-based event channels

2014-01-06T15:07:52+00:00

Add the hypercall sub-ops and the structures for the shared data used
in the FIFO-based event channel ABI.

The design document for this new ABI is available here:

    http://xenbits.xen.org/people/dvrabel/event-channels-H.pdf

In summary, events are reported using a per-domain shared event array
of event words.  Each event word has PENDING, LINKED and MASKED bits
and a LINK field for pointing to the next event in the event queue.

There are 16 event queues (with different priorities) per-VCPU.

Key advantages of this new ABI include:

- Support for over 100,000 events (2^17).
- 16 different event priorities.
- Improved fairness in event latency through the use of FIFOs.

The ABI is available in Xen 4.4 and later.

Signed-off-by: David Vrabel 
Reviewed-by: Konrad Rzeszutek Wilk 
Reviewed-by: Boris Ostrovsky

xen: event channel arrays are xen_ulong_t and not unsigned long

2013-02-20T13:45:07+00:00

On ARM we want these to be the same size on 32- and 64-bit.

This is an ABI change on ARM. X86 does not change.

Signed-off-by: Ian Campbell 
Cc: Jan Beulich 
Cc: Keir (Xen.org) 
Cc: Tim Deegan 
Cc: Stefano Stabellini 
Cc: linux-arm-kernel@lists.infradead.org
Cc: xen-devel@lists.xen.org
Cc: Konrad Rzeszutek Wilk 
Signed-off-by: Konrad Rzeszutek Wilk

xen/vga: add the xen EFI video mode support

2012-09-24T13:28:57+00:00

In order to add xen EFI frambebuffer video support, it is required to add
xen-efi's new video type (XEN_VGATYPE_EFI_LFB) case and handle it in the
function xen_init_vga and set the video type to VIDEO_TYPE_EFI to enable
efi video mode.

The original patch from which this was broken out from:
 http://marc.info/?i=4E099AA6020000780004A4C6@nat28.tlf.novell.com

Signed-off-by: Jan Beulich 
Signed-off-by: Tang Liang 
[v2: The original author is Jan Beulich and Liang Tang ported it to upstream]
Signed-off-by: Konrad Rzeszutek Wilk

Merge branch 'x86/platform' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into stable/for-linus-3.7

2012-09-12T15:14:33+00:00

* 'x86/platform' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (9690 commits)
  x86: Document x86_init.paging.pagetable_init()
  x86: xen: Cleanup and remove x86_init.paging.pagetable_setup_done()
  x86: Move paging_init() call to x86_init.paging.pagetable_init()
  x86: Rename pagetable_setup_start() to pagetable_init()
  x86: Remove base argument from x86_init.paging.pagetable_setup_start
  Linux 3.6-rc5
  HID: tpkbd: work even if the new Lenovo Keyboard driver is not configured
  Remove user-triggerable BUG from mpol_to_str
  xen/pciback: Fix proper FLR steps.
  uml: fix compile error in deliver_alarm()
  dj: memory scribble in logi_dj
  Fix order of arguments to compat_put_time[spec|val]
  xen: Use correct masking in xen_swiotlb_alloc_coherent.
  xen: fix logical error in tlb flushing
  xen/p2m: Fix one-off error in checking the P2M tree directory.
  powerpc: Don't use __put_user() in patch_instruction
  powerpc: Make sure IPI handlers see data written by IPI senders
  powerpc: Restore correct DSCR in context switch
  powerpc: Fix DSCR inheritance in copy_thread()
  powerpc: Keep thread.dscr and thread.dscr_inherit in sync
  ...