linux/include
Vitaly Kuznetsov 2bc39970e9 x86/kvm/hyper-v: Introduce KVM_GET_SUPPORTED_HV_CPUID
With every new Hyper-V Enlightenment we implement we're forced to add a
KVM_CAP_HYPERV_* capability. While this approach works it is fairly
inconvenient: the majority of the enlightenments we do have corresponding
CPUID feature bit(s) and userspace has to know this anyways to be able to
expose the feature to the guest.

Add KVM_GET_SUPPORTED_HV_CPUID ioctl (backed by KVM_CAP_HYPERV_CPUID, "one
cap to rule them all!") returning all Hyper-V CPUID feature leaves.

Using the existing KVM_GET_SUPPORTED_CPUID doesn't seem to be possible:
Hyper-V CPUID feature leaves intersect with KVM's (e.g. 0x40000000,
0x40000001) and we would probably confuse userspace in case we decide to
return these twice.

KVM_CAP_HYPERV_CPUID's number is interim: we're intended to drop
KVM_CAP_HYPERV_STIMER_DIRECT and use its number instead.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-14 17:59:54 +01:00
..
acpi pci-v4.20-changes 2018-10-25 06:50:48 -07:00
asm-generic s390 updates for 4.20-rc2 2018-11-09 06:30:44 -06:00
clocksource
crypto KEYS: asym_tpm: extract key size & public key [ver #2] 2018-10-26 09:30:46 +01:00
drm drm, i915, amdgpu, bridge + core quirk 2018-11-02 10:58:20 -07:00
dt-bindings This time it looks like a quieter release cycle in the clk tree. I guess that's 2018-10-31 11:08:30 -07:00
keys KEYS: Move trusted.h to include/keys [ver #2] 2018-10-26 09:30:47 +01:00
kvm
linux kvm: introduce manual dirty log reprotect 2018-12-14 12:34:19 +01:00
math-emu
media media: Use wait_queue_head_t for media_request 2018-11-20 12:53:23 -05:00
memory
misc
net neighbour: Avoid writing before skb->head in neigh_hh_output() 2018-12-07 16:24:40 -08:00
pcmcia
ras
rdma First merge window pull request 2018-10-26 07:38:19 -07:00
scsi
soc ARM: SoC driver updates for 4.17 2018-10-29 15:16:01 -07:00
sound ALSA: pcm: Fix interval evaluation with openmin/max 2018-11-29 12:05:19 +01:00
target
trace While rewriting the function graph tracer, I discovered a design flaw that 2018-11-30 09:32:34 -08:00
uapi x86/kvm/hyper-v: Introduce KVM_GET_SUPPORTED_HV_CPUID 2018-12-14 17:59:54 +01:00
video
xen Revert "xen/balloon: Mark unallocated host memory as UNUSABLE" 2018-11-29 17:53:31 +01:00