Instead of each subarch doing its own thing, add an API for queuing an
injection, and manage failed exception injection centerally (i.e., if
an inject failed due to a shadow page fault, we need to requeue it).
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Signed-off-by: NNick Piggin <npiggin@suse.de>
Cc: kvm-devel@lists.sourceforge.net
Cc: avi@qumranet.com
Cc: linux-kernel@vger.kernel.org
Signed-off-by: NAvi Kivity <avi@qumranet.com>

This abstracts the detail of x86 hlt and INIT modes into a function.
Signed-off-by: NHollis Blanchard <hollisb@us.ibm.com>
Acked-by: NCarsten Otte <cotte@de.ibm.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Signed-off-by: NHollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Signed-off-by: NHollis Blanchard <hollisb@us.ibm.com>
Acked-by: NCarsten Otte <cotte@de.ibm.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Signed-off-by: NHollis Blanchard <hollisb@us.ibm.com>
Acked-by: NCarsten Otte <cotte@de.ibm.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

iosapic supports an additional mmio EOI register compared to ioapic.
Signed-off-by: NZhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Change
  dest_Loest_Prio -> IOAPIC_LOWEST_PRIORITY
  dest_Fixed -> IOAPIC_FIXED

the original names are x86 specific, while the ioapic code will be reused
for ia64.
Signed-off-by: NZhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

This patch replaces lapic structure with kvm_vcpu in ioapic.c, making ioapic
independent of the local apic, as required by ia64.
Signed-off-by: NZhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

This patch removes the KVM specific defines for MSR_EFER that were being used
in the svm support file and migrates all references to use instead the ones
from the kernel headers that are used everywhere else and that have the same
values.
Signed-off-by: NCarlo Marcelo Arenas Belon <carenas@sajinet.com.pe>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Currently, make headers_check barfs due to <asm/kvm.h>, which <linux/kvm.h>
includes, not existing.  Rather than add a zillion <asm/kvm.h>s, export kvm.h
only if the arch actually supports it.
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Signed-off-by: NZhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Other archs doesn't need it.
Signed-off-by: NZhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Unify the special instruction switch with the regular instruction switch,
and the two byte special instruction switch with the regular two byte
instruction switch.  That makes it much easier to find an instruction or
the place an instruction needs to be added in.
Signed-off-by: NAvi Kivity <avi@qumranet.com>

The rep prefix cleanup left two switch () statements next to each other.
Unify them.
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Currently rep processing is handled somewhere in the middle of instruction
processing.  Move it to a sensible place.
Signed-off-by: NAvi Kivity <avi@qumranet.com>

This patch fixes a small issue where sturctures:
	kvm_pic_state
	kvm_ioapic_state

are defined inside x86 specific code and may or may not
be defined in anyway for other architectures. The problem
caused is one cannot compile userspace apps (ex. libkvm)
for other archs since a size cannot be determined for these
structures.
Signed-off-by: NJerone Young <jyoung5@us.ibm.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Add emulation for the cmps instruction.  This lets OpenBSD boot on kvm.
Signed-off-by: NGuillaume Thouvenin <guillaume.thouvenin@ext.bull.net>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Previous patches have removed the dependency on cr2; we can now stop passing
it to the emulator and rename uses to 'memop'.
Signed-off-by: NSheng Yang <sheng.yang@intel.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Mark guest pages as accessed when removed from the shadow page tables for
better lru processing.
Signed-off-by: NIzik Eidus <izike@qumranet.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

mmio was already handled in kvm_arch_vcpu_ioctl_run(), so no need to check
again.
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Current implementation is to toggle, which is incorrect.  Patch ported from
corresponding Xen code.
Signed-off-by: NAvi Kivity <avi@qumranet.com>

cmps and scas instructions accept repeat prefixes F3 and F2. So in
order to emulate those prefixed instructions we need to be able to know
if prefixes are REP/REPE/REPZ or REPNE/REPNZ. Currently kvm doesn't make
this distinction. This patch introduces this distinction.
Signed-off-by: NGuillaume Thouvenin <guillaume.thouvenin@ext.bull.net>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Non-x86 archs don't need this mechanism. Move it to arch, and
keep its interface in common.
Signed-off-by: NZhang Xiantao <xiantao.zhang@intel.com>
Acked-by: NCarsten Otte <cotte@de.ibm.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

The state of SECONDARY_VM_EXEC_CONTROL shouldn't depend on in-kernel IRQ chip,
this patch fix this.
Signed-off-by: NSheng Yang <sheng.yang@intel.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

The current cpuid management suffers from several problems, which inhibit
passing through the host feature set to the guest:

 - No way to tell which features the host supports

  While some features can be supported with no changes to kvm, others
  need explicit support.  That means kvm needs to vet the feature set
  before it is passed to the guest.

 - No support for indexed or stateful cpuid entries

  Some cpuid entries depend on ecx as well as on eax, or on internal
  state in the processor (running cpuid multiple times with the same
  input returns different output).  The current cpuid machinery only
  supports keying on eax.

 - No support for save/restore/migrate

  The internal state above needs to be exposed to userspace so it can
  be saved or migrated.

This patch adds extended cpuid support by means of three new ioctls:

 - KVM_GET_SUPPORTED_CPUID: get all cpuid entries the host (and kvm)
   supports

 - KVM_SET_CPUID2: sets the vcpu's cpuid table

 - KVM_GET_CPUID2: gets the vcpu's cpuid table, including hidden state

[avi: fix original KVM_SET_CPUID not removing nx on non-nx hosts as it did
      before]
Signed-off-by: NDan Kenigsberg <danken@qumranet.com>
Signed-off-by: NAvi Kivity <avi@qumranet.com>

We don't want the meaning of guest userspace changing under our feet.
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Rename the awkwardly named variable.
Signed-off-by: NAvi Kivity <avi@qumranet.com>

These are traditionally named 'page', but even more traditionally, that name
is reserved for variables that point to a 'struct page'.  Rename them to 'sp'
(for "shadow page").
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Converting last uses along the way.
Signed-off-by: NAvi Kivity <avi@qumranet.com>

No longer used.
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Instead of passing an hpa, pass a regular struct page.
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Converting a frame number to an address is tricky since the data type changes
size.  Introduce a function to do it.  This fixes an actual bug when
accessing guest ptes.
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Signed-off-by: NAvi Kivity <avi@qumranet.com>

Since set_pte() is now the only caller of set_pte_common(), merge the two
functions.
Signed-off-by: NAvi Kivity <avi@qumranet.com>

It is now identical to set_pte().
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Similar information is available in the gfn parameter, so use that.
Signed-off-by: NAvi Kivity <avi@qumranet.com>

Signed-off-by: NAvi Kivity <avi@qumranet.com>

Instead of repretitively open-coding this.
Signed-off-by: NAvi Kivity <avi@qumranet.com>