kernel.git/Documentation/virtual/kvm/api.txt, branch linux-3.19.y

Merge tag 'kvm-arm-for-3.19-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

2014-12-15T12:06:40Z

Second round of changes for KVM for arm/arm64 for v3.19; fixes reboot problems, clarifies VCPU init, and fixes a regression concerning the VGIC init flow. Conflicts: arch/ia64/kvm/kvm-ia64.c [deleted in HEAD and modified in kvmarm]

arm/arm64: KVM: Turn off vcpus on PSCI shutdown/reboot

2014-12-13T13:15:27Z

When a vcpu calls SYSTEM_OFF or SYSTEM_RESET with PSCI v0.2, the vcpus should really be turned off for the VM adhering to the suggestions in the PSCI spec, and it's the sane thing to do. Also, clarify the behavior and expectations for exits to user space with the KVM_EXIT_SYSTEM_EVENT case. Acked-by: Marc Zyngier Signed-off-by: Christoffer Dall

arm/arm64: KVM: Clarify KVM_ARM_VCPU_INIT ABI

2014-12-13T13:15:26Z

It is not clear that this ioctl can be called multiple times for a given vcpu. Userspace already does this, so clarify the ABI. Also specify that userspace is expected to always make secondary and subsequent calls to the ioctl with the same parameters for the VCPU as the initial call (which userspace also already does). Add code to check that userspace doesn't violate that ABI in the future, and move the kvm_vcpu_set_target() function which is currently duplicated between the 32-bit and 64-bit versions in guest.c to a common static function in arm.c, shared between both architectures. Acked-by: Marc Zyngier Signed-off-by: Christoffer Dall

arm/arm64: KVM: Correct KVM_ARM_VCPU_INIT power off option

2014-12-13T13:15:25Z

The implementation of KVM_ARM_VCPU_INIT is currently not doing what userspace expects, namely making sure that a vcpu which may have been turned off using PSCI is returned to its initial state, which would be powered on if userspace does not set the KVM_ARM_VCPU_POWER_OFF flag. Implement the expected functionality and clarify the ABI. Acked-by: Marc Zyngier Signed-off-by: Christoffer Dall

kvm: Documentation: remove ia64

2014-11-20T10:08:55Z

kvm/ia64 is gone, clean up Documentation too. Signed-off-by: Paolo Bonzini

kvm: drop unsupported capabilities, fix documentation

2014-11-03T11:07:29Z

No kernel ever reported KVM_CAP_DEVICE_MSIX, KVM_CAP_DEVICE_MSI, KVM_CAP_DEVICE_ASSIGNMENT, KVM_CAP_DEVICE_DEASSIGNMENT. This makes the documentation wrong, and no application ever written to use these capabilities has a chance to work correctly. The only way to detect support is to try, and test errno for ENOTTY. That's unfortunate, but we can't fix the past. Document the actual semantics, and drop the definitions from the exported header to make it easier for application developers to note and fix the bug. Signed-off-by: Michael S. Tsirkin Signed-off-by: Paolo Bonzini

KVM: PPC: BOOKE: Add one_reg documentation of SPRG9 and DBSR

2014-09-22T08:11:32Z

This was missed in respective one_reg implementation patch. Signed-off-by: Bharat Bhushan Signed-off-by: Alexander Graf

KVM: fix api documentation of KVM_GET_EMULATED_CPUID

2014-09-10T09:34:39Z

It looks like when this was initially merged it got accidentally included in the following section. I've just moved it back in the correct section and re-numbered it as other ioctls have been added since. Signed-off-by: Alex BennÃ©e Acked-by: Borislav Petkov Signed-off-by: Paolo Bonzini

KVM: document KVM_SET_GUEST_DEBUG api

2014-09-10T09:33:12Z

In preparation for working on the ARM implementation I noticed the debug interface was missing from the API document. I've pieced together the expected behaviour from the code and commit messages written it up as best I can. Signed-off-by: Alex BennÃ©e Signed-off-by: Paolo Bonzini

KVM: clarify the idea of kvm_dirty_regs

2014-08-25T12:35:29Z

This patch clarifies that kvm_dirty_regs are just a hint to the kernel and that the kernel might just ignore some flags and sync the values (like done for acrs and gprs now). Signed-off-by: David Hildenbrand Reviewed-by: Cornelia Huck Signed-off-by: Christian Borntraeger