kernel_optimize_test/include/xen
Mukesh Rathor ddc416cbc4 xen/pvh/x86: Define what an PVH guest is (v3).
Which is a PV guest with auto page translation enabled
and with vector callback. It is a cross between PVHVM and PV.

The Xen side defines PVH as (from docs/misc/pvh-readme.txt,
with modifications):

"* the guest uses auto translate:
 - p2m is managed by Xen
 - pagetables are owned by the guest
 - mmu_update hypercall not available
* it uses event callback and not vlapic emulation,
* IDT is native, so set_trap_table hcall is also N/A for a PVH guest.

For a full list of hcalls supported for PVH, see pvh_hypercall64_table
in arch/x86/hvm/hvm.c in xen.  From the ABI prespective, it's mostly a
PV guest with auto translate, although it does use hvm_op for setting
callback vector."

Also we use the PV cpuid, albeit we can use the HVM (native) cpuid.
However, we do have a fair bit of filtering in the xen_cpuid and
we can piggyback on that until the hypervisor/toolstack filters
the appropiate cpuids. Once that is done we can swap over to
use the native one.

We setup a Kconfig entry that is disabled by default and
cannot be enabled.

Note that on ARM the concept of PVH is non-existent. As Ian
put it: "an ARM guest is neither PV nor HVM nor PVHVM.
It's a bit like PVH but is different also (it's further towards
the H end of the spectrum than even PVH).". As such these
options (PVHVM, PVH) are never enabled nor seen on ARM
compilations.

Signed-off-by: Mukesh Rathor <mukesh.rathor@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2014-01-06 10:43:58 -05:00
..
interface xen/events: Add the hypervisor interface for the FIFO-based event channels 2014-01-06 10:07:52 -05:00
acpi.h xen / ACPI: notify xen when reduced hardware sleep is available 2013-07-31 14:22:35 +02:00
balloon.h xen/balloon: set a mapping for ballooned out pages 2013-08-09 11:23:24 -04:00
events.h xen/events: allow event channel priority to be set 2014-01-06 10:07:54 -05:00
features.h
gntalloc.h xen/gntalloc,gntdev: Add unmap notify ioctl 2011-02-14 14:16:17 -05:00
gntdev.h xen/gntalloc,gntdev: Add unmap notify ioctl 2011-02-14 14:16:17 -05:00
grant_table.h Merge commit 'v3.7-rc1' into stable/for-linus-3.7 2012-10-19 15:19:19 -04:00
hvc-console.h treewide: use __printf not __attribute__((format(printf,...))) 2011-10-31 17:30:54 -07:00
hvm.h xen: Convert printks to pr_<level> 2013-06-28 11:19:58 -04:00
page.h xen: allow balloon driver to use more than one memory region 2011-09-29 11:12:10 -04:00
platform_pci.h xen/pvhvm: Remove the xen_platform_pci int. 2014-01-03 14:54:53 -05:00
swiotlb-xen.h Merge remote-tracking branch 'stefano/swiotlb-xen-9.1' into stable/for-linus-3.13 2013-11-08 16:10:48 -05:00
tmem.h xen: tmem: enable Xen tmem shim to be built/loaded as a module 2013-04-30 17:04:01 -07:00
xen-ops.h swiotlb-xen: use xen_alloc/free_coherent_pages 2013-10-10 13:41:10 +00:00
xen.h xen/pvh/x86: Define what an PVH guest is (v3). 2014-01-06 10:43:58 -05:00
xenbus_dev.h xenbus: Add support for xenbus backend in stub domain 2012-05-21 09:53:18 -04:00
xenbus.h xenbus: delay xenbus frontend resume if xenstored is not running 2013-05-29 09:04:19 -04:00
xencomm.h xen: import arch generic part of xencomm 2008-04-24 23:57:32 +02:00