kernel/linux.git/include/linux/kvm_host.h, branch linux-4.3.y

KVM: Provide function for VCPU lookup by id

2015-12-09T19:34:34+00:00

commit db27a7a37aa0b1f8b373f8b0fb72a2ccaafb85b7 upstream. Let's provide a function to lookup a VCPU by id. Reviewed-by: Christian Borntraeger Reviewed-by: Dominik Dingel Signed-off-by: David Hildenbrand Signed-off-by: Christian Borntraeger [split patch from refactoring patch] Signed-off-by: Greg Kroah-Hartman

KVM: make halt_poll_ns per-vCPU

2015-09-06T14:27:10+00:00

Change halt_poll_ns into per-VCPU variable, seeded from module parameter, to allow greater flexibility. Signed-off-by: Wanpeng Li Signed-off-by: Paolo Bonzini

KVM: document memory barriers for kvm->vcpus/kvm->online_vcpus

2015-07-30T14:02:54+00:00

Signed-off-by: Paolo Bonzini

KVM: move code related to KVM_SET_BOOT_CPU_ID to x86

2015-07-29T12:27:21+00:00

This is another remnant of ia64 support. Signed-off-by: Paolo Bonzini

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: introduce vcpu_debug = kvm_debug + vcpu context

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

vcpu_debug is useful macro like kvm_debug but additionally includes vcpu context inside output. 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: count number of assigned devices

2015-07-10T11:25:26+00:00

If there are no assigned devices, the guest PAT are not providing any useful information and can be overridden to writeback; VMX always does this because it has the "IPAT" bit in its extended page table entries, but SVM does not have anything similar. Hook into VFIO and legacy device assignment so that they provide this information to KVM. Reviewed-by: Alex Williamson Tested-by: Joerg Roedel Signed-off-by: Paolo Bonzini

KVM: implement multiple address spaces

2015-06-05T15:26:35+00:00

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: add vcpu-specific functions to read/write/translate GFNs

2015-06-05T15:26:34+00:00

We need to hide SMRAM from guests not running in SMM. Therefore, all uses of kvm_read_guest* and kvm_write_guest* must be changed to use different address spaces, depending on whether the VCPU is in system management mode. We need to introduce a new family of functions for this purpose. For now, the VCPU-based functions have the same behavior as the existing per-VM ones, they just accept a different type for the first argument. Later however they will be changed to use one of many "struct kvm_memslots" stored in struct kvm, through an architecture hook. VM-based functions will unconditionally use the first memslots pointer. Whenever possible, this patch introduces slot-based functions with an __ prefix, with two wrappers for generic and vcpu-based actions. The exceptions are kvm_read_guest and kvm_write_guest, which are copied into the new functions kvm_vcpu_read_guest and kvm_vcpu_write_guest. Reviewed-by: Radim Krčmář Signed-off-by: Paolo Bonzini

KVM: x86: stubs for SMM support

2015-06-04T14:01:45+00:00

This patch adds the interface between x86.c and the emulator: the SMBASE register, a new emulator flag, the RSM instruction. It also adds a new request bit that will be used by the KVM_SMI ioctl. Reviewed-by: Radim Krčmář Signed-off-by: Paolo Bonzini