linux-toradex.git/arch/x86/include/uapi/asm/vmx.h, branch v4.0.2

KVM: VMX: Add PML support in VMX

2015-01-30T08:39:54+00:00

This patch adds PML support in VMX. A new module parameter 'enable_pml' is added
to allow user to enable/disable it manually.

Signed-off-by: Kai Huang 
Reviewed-by: Xiao Guangrong 
Signed-off-by: Paolo Bonzini

KVM: nVMX: Add nested msr load/restore algorithm

2015-01-08T21:45:14+00:00

Several hypervisors need MSR auto load/restore feature.
We read MSRs from VM-entry MSR load area which specified by L1,
and load them via kvm_set_msr in the nested entry.
When nested exit occurs, we get MSRs via kvm_get_msr, writing
them to L1`s MSR store area. After this, we read MSRs from VM-exit
MSR load area, and load them via kvm_set_msr.

Signed-off-by: Wincy Van 
Signed-off-by: Paolo Bonzini

kvm: x86: handle XSAVES vmcs and vmexit

2014-12-05T12:57:33+00:00

Initialize the XSS exit bitmap.  It is zero so there should be no XSAVES
or XRSTORS exits.

Signed-off-by: Wanpeng Li 
Reviewed-by: Radim Krčmář 
Signed-off-by: Paolo Bonzini

kvm: vmx: handle invvpid vm exit gracefully

2014-10-24T11:21:17+00:00

On systems with invvpid instruction support (corresponding bit in
IA32_VMX_EPT_VPID_CAP MSR is set) guest invocation of invvpid
causes vm exit, which is currently not handled and results in
propagation of unknown exit to userspace.

Fix this by installing an invvpid vm exit handler.

This is CVE-2014-3646.

Cc: stable@vger.kernel.org
Signed-off-by: Petr Matousek 
Signed-off-by: Paolo Bonzini

KVM: x86: Update symbolic exit codes

2013-08-13T14:58:42+00:00

Add decoding for INVEPT and reorder the list according to the reason
numbers.

Signed-off-by: Jan Kiszka 
Signed-off-by: Paolo Bonzini

nEPT: Nested INVEPT

2013-08-07T13:57:42+00:00

If we let L1 use EPT, we should probably also support the INVEPT instruction.

In our current nested EPT implementation, when L1 changes its EPT table
for L2 (i.e., EPT12), L0 modifies the shadow EPT table (EPT02), and in
the course of this modification already calls INVEPT. But if last level
of shadow page is unsync not all L1's changes to EPT12 are intercepted,
which means roots need to be synced when L1 calls INVEPT. Global INVEPT
should not be different since roots are synced by kvm_mmu_load() each
time EPTP02 changes.

Reviewed-by: Xiao Guangrong 
Signed-off-by: Nadav Har'El 
Signed-off-by: Jun Nakajima 
Signed-off-by: Xinhao Xu 
Signed-off-by: Yang Zhang 
Signed-off-by: Gleb Natapov 
Signed-off-by: Paolo Bonzini

KVM: nVMX: Add preemption timer support

2013-03-14T08:01:21+00:00

Provided the host has this feature, it's straightforward to offer it to
the guest as well. We just need to load to timer value on L2 entry if
the feature was enabled by L1 and watch out for the corresponding exit
reason.

Reviewed-by: Paolo Bonzini 
Signed-off-by: Jan Kiszka 
Signed-off-by: Gleb Natapov

Merge tag 'kvm-3.9-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2013-02-24T21:07:18+00:00

Pull KVM updates from Marcelo Tosatti:
 "KVM updates for the 3.9 merge window, including x86 real mode
  emulation fixes, stronger memory slot interface restrictions, mmu_lock
  spinlock hold time reduction, improved handling of large page faults
  on shadow, initial APICv HW acceleration support, s390 channel IO
  based virtio, amongst others"

* tag 'kvm-3.9-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (143 commits)
  Revert "KVM: MMU: lazily drop large spte"
  x86: pvclock kvm: align allocation size to page size
  KVM: nVMX: Remove redundant get_vmcs12 from nested_vmx_exit_handled_msr
  x86 emulator: fix parity calculation for AAD instruction
  KVM: PPC: BookE: Handle alignment interrupts
  booke: Added DBCR4 SPR number
  KVM: PPC: booke: Allow multiple exception types
  KVM: PPC: booke: use vcpu reference from thread_struct
  KVM: Remove user_alloc from struct kvm_memory_slot
  KVM: VMX: disable apicv by default
  KVM: s390: Fix handling of iscs.
  KVM: MMU: cleanup __direct_map
  KVM: MMU: remove pt_access in mmu_set_spte
  KVM: MMU: cleanup mapping-level
  KVM: MMU: lazily drop large spte
  KVM: VMX: cleanup vmx_set_cr0().
  KVM: VMX: add missing exit names to VMX_EXIT_REASONS array
  KVM: VMX: disable SMEP feature when guest is in non-paging mode
  KVM: Remove duplicate text in api.txt
  Revert "KVM: MMU: split kvm_mmu_free_page"
  ...

UAPI: (Scripted) Disintegrate arch/x86/include/asm

2012-12-14T22:37:13+00:00

Signed-off-by: David Howells 
Acked-by: Arnd Bergmann 
Acked-by: Thomas Gleixner 
Acked-by: Michael Kerrisk 
Acked-by: Paul E. McKenney 
Acked-by: Dave Jones