user/sven/linux.git/Documentation/virtual, branch stable/4.3.y

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

2015-08-22T21:57:59Z

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

2015-07-23T06:27:06Z

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: enable KVM_CAP_SET_GUEST_DEBUG

2015-07-21T11:50:43Z

Finally advertise the KVM capability for SET_GUEST_DEBUG. Once arm support is added this check can be moved to the common kvm_vm_ioctl_check_extension() code. Signed-off-by: Alex Bennée Acked-by: Christoffer Dall Signed-off-by: Marc Zyngier

KVM: arm64: guest debug, add SW break point support

2015-07-21T11:47:08Z

This adds support for SW breakpoints inserted by userspace. We do this by trapping all guest software debug exceptions to the hypervisor (MDCR_EL2.TDE). The exit handler sets an exit reason of KVM_EXIT_DEBUG with the kvm_debug_exit_arch structure holding the exception syndrome information. It will be up to userspace to extract the PC (via GET_ONE_REG) and determine if the debug event was for a breakpoint it inserted. If not userspace will need to re-inject the correct exception restart the hypervisor to deliver the debug exception to the guest. Any other guest software debug exception (e.g. single step or HW assisted breakpoints) will cause an error and the VM to be killed. This is addressed by later patches which add support for the other debug types. Signed-off-by: Alex Bennée Reviewed-by: Christoffer Dall Signed-off-by: Marc Zyngier

KVM: arm: guest debug, add stub KVM_SET_GUEST_DEBUG ioctl

2015-07-21T11:47:08Z

This commit adds a stub function to support the KVM_SET_GUEST_DEBUG ioctl. Any unsupported flag will return -EINVAL. For now, only KVM_GUESTDBG_ENABLE is supported, although it won't have any effects. Signed-off-by: Alex Bennée . Reviewed-by: Christoffer Dall Signed-off-by: Marc Zyngier

KVM: add comments for kvm_debug_exit_arch struct

2015-07-21T11:47:08Z

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

KVM: x86: mark legacy PCI device assignment as deprecated

2015-06-05T15:26:39Z

Follow up to commit e194bbdf362ba7d53cfd23ba24f1a7c90ef69a74. Suggested-by: Bandan Das Suggested-by: Alex Williamson Signed-off-by: Paolo Bonzini

KVM: x86: add SMM to the MMU role, support SMRAM address space

2015-06-05T15:26:37Z

This is now very simple to do. The only interesting part is a simple trick to find the right memslot in gfn_to_rmap, retrieving the address space from the spte role word. The same trick is used in the auditing code. The comment on top of union kvm_mmu_page_role has been stale forever, so remove it. Speaking of stale code, remove pad_for_nice_hex_output too: it was splitting the "access" bitfield across two bytes and thus had effectively turned into pad_for_ugly_hex_output. Reviewed-by: Radim Krčmář Signed-off-by: Paolo Bonzini

KVM: implement multiple address spaces

2015-06-05T15:26:35Z

Only two ioctls have to be modified; the address space id is placed in the higher 16 bits of their slot id argument. As of this patch, no architecture defines more than one address space; x86 will be the first. Reviewed-by: Radim Krčmář Signed-off-by: Paolo Bonzini

KVM: x86: API changes for SMM support

2015-06-04T14:01:11Z

This patch includes changes to the external API for SMM support. Userspace can predicate the availability of the new fields and ioctls on a new capability, KVM_CAP_X86_SMM, which is added at the end of the patch series. Reviewed-by: Radim Krčmář Signed-off-by: Paolo Bonzini