Commit Graph

2 Commits

Author SHA1 Message Date
Jian Jun Chen
1d194ede61 hv: support reference time enlightenment
Two time related synthetic MSRs are implemented in this patch. Both of
them are partition wide MSR.
- HV_X64_MSR_TIME_REF_COUNT is read only and it is used to return the
  partition's reference counter value in 100ns units.
- HV_X64_MSR_REFERENCE_TSC is used to set/get the reference TSC page,
  a sequence number, an offset and a multiplier are defined in this
  page by hypervisor and guest OS can use them to calculate the
  normalized reference time since partition creation, in 100ns units.

Tracked-On: #3831
Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2019-10-22 10:09:16 +08:00
wenwumax
048155d3d6 hv: support minimum set of TLFS
This patch implements the minimum set of TLFS functionality. It
includes 6 vCPUID leaves and 3 vMSRs.

- 0x40000001 Hypervisor Vendor-Neutral Interface Identification
- 0x40000002 Hypervisor System Identity
- 0x40000003 Hypervisor Feature Identification
- 0x40000004 Implementation Recommendations
- 0x40000005 Hypervisor Implementation Limits
- 0x40000006 Implementation Hardware Features

- HV_X64_MSR_GUEST_OS_ID Reporting the guest OS identity
- HV_X64_MSR_HYPERCALL Establishing the hypercall interface
- HV_X64_MSR_VP_INDEX Retrieve the vCPU ID from hypervisor

Tracked-On: #3832
Signed-off-by: wenwumax <wenwux.ma@intel.com>
Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2019-10-22 10:09:16 +08:00