linux-toradex.git/include/uapi/linux/kvm.h, branch v4.4.93

kvm: add capability for any-length ioeventfds

2015-10-01T13:06:31+00:00

Cc: Gleb Natapov 
Cc: Paolo Bonzini 
Signed-off-by: Jason Wang 
Signed-off-by: Paolo Bonzini

KVM: x86: Add KVM exit for IOAPIC EOIs

2015-10-01T13:06:27+00:00

Adds KVM_EXIT_IOAPIC_EOI which allows the kernel to EOI
level-triggered IOAPIC interrupts.

Uses a per VCPU exit bitmap to decide whether or not the IOAPIC needs
to be informed (which is identical to the EOI_EXIT_BITMAP field used
by modern x86 processors, but can also be used to elide kvm IOAPIC EOI
exits on older processors).

[Note: A prototype using ResampleFDs found that decoupling the EOI
from the VCPU's thread made it possible for the VCPU to not see a
recent EOI after reentering the guest. This does not match real
hardware.]

Compile tested for Intel x86.

Signed-off-by: Steve Rutherford 
Signed-off-by: Paolo Bonzini

KVM: x86: Split the APIC from the rest of IRQCHIP.

2015-10-01T13:06:26+00:00

First patch in a series which enables the relocation of the
PIC/IOAPIC to userspace.

Adds capability KVM_CAP_SPLIT_IRQCHIP;

KVM_CAP_SPLIT_IRQCHIP enables the construction of LAPICs without the
rest of the irqchip.

Compile tested for x86.

Signed-off-by: Steve Rutherford 
Suggested-by: Andrew Honig 
Signed-off-by: Paolo Bonzini

Merge tag 'signed-kvm-ppc-next' of git://github.com/agraf/linux-2.6 into kvm-queue

2015-08-22T21:57:59+00:00

Patch queue for ppc - 2015-08-22

Highlights for KVM PPC this time around:

  - Book3S: A few bug fixes
  - Book3S: Allow micro-threading on POWER8

KVM: s390: more irq names for trace events

2015-07-29T09:02:34+00:00

This patch adds names for missing irq types to the trace events.
In order to identify adapter irqs, the define is moved from
interrupt.c to the other basic irq defines in uapi/linux/kvm.h.

Acked-by: Cornelia Huck 
Signed-off-by: David Hildenbrand 
Signed-off-by: Christian Borntraeger

kvm/x86: add sending hyper-v crash notification to user space

2015-07-23T06:27:06+00:00

Sending of notification is done by exiting vcpu to user space
if KVM_REQ_HV_CRASH is enabled for vcpu. At exit to user space
the kvm_run structure contains system_event with type
KVM_SYSTEM_EVENT_CRASH to notify about guest crash occurred.

Signed-off-by: Andrey Smetanin 
Signed-off-by: Denis V. Lunev 
Reviewed-by: Peter Hornyack 
CC: Paolo Bonzini 
CC: Gleb Natapov 
Signed-off-by: Paolo Bonzini

KVM: arm64: guest debug, HW assisted debug support

2015-07-21T11:50:43+00:00

This adds support for userspace to control the HW debug registers for
guest debug. In the debug ioctl we copy an IMPDEF registers into a new
register set called host_debug_state.

We use the recently introduced vcpu parameter debug_ptr to select which
register set is copied into the real registers when world switch occurs.

I've made some helper functions from hw_breakpoint.c more widely
available for re-use.

As with single step we need to tweak the guest registers to enable the
exceptions so we need to save and restore those bits.

Two new capabilities have been added to the KVM_EXTENSION ioctl to allow
userspace to query the number of hardware break and watch points
available on the host hardware.

Signed-off-by: Alex Bennée 
Reviewed-by: Christoffer Dall 
Signed-off-by: Marc Zyngier

KVM: add comments for kvm_debug_exit_arch struct

2015-07-21T11:47:08+00:00

Bring into line with the comments for the other structures and their
KVM_EXIT_* cases. Also update api.txt to reflect use in kvm_run
documentation.

Signed-off-by: Alex Bennée 
Reviewed-by: David Hildenbrand 
Reviewed-by: Andrew Jones 
Acked-by: Christoffer Dall 
Signed-off-by: Marc Zyngier

Merge tag 'kvm-arm-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

2015-06-19T15:15:24+00:00

KVM/ARM changes for v4.2:

- Proper guest time accounting
- FP access fix for 32bit
- The usual pile of GIC fixes
- PSCI fixes
- Random cleanups

kvm: remove one useless check extension

2015-06-17T08:46:28+00:00

We already check KVM_CAP_IRQFD in generic once enable CONFIG_HAVE_KVM_IRQFD,

kvm_vm_ioctl_check_extension_generic()
    |
    + switch (arg) {
    +   ...
    +   #ifdef CONFIG_HAVE_KVM_IRQFD
    +       case KVM_CAP_IRQFD:
    +   #endif
    +   ...
    +   return 1;
    +   ...
    + }
    |
    + kvm_vm_ioctl_check_extension()

So its not necessary to check this in arch again, and also fix one typo,
s/emlation/emulation.

Signed-off-by: Tiejun Chen 
Acked-by: Paolo Bonzini 
Signed-off-by: Christoffer Dall