guestrpc module to handle VMware backdoor port GuestRPC functionality

Convert existing FreeBSD vmware_hvcall function to take a channel
and parameter arguments.

Added vmware_guestrpc_cmd() to send

guestrpc module to handle VMware backdoor port GuestRPC functionality

Convert existing FreeBSD vmware_hvcall function to take a channel
and parameter arguments.

Added vmware_guestrpc_cmd() to send GuestRPC commands to the VMware
hypervisor. The sbuf argument is used for both the command to send
and to store the data to return to the caller.

The following KPIs can be used to get and set FreeBSD-specific guest
information in key/value pairs:
* vmware_guestrpc_set_guestinfo
- set a value into the guestinfo.fbsd.<keyword> key
* vmware_guestrpc_get_guestinfo
- get the value stored in the guestinfo.fbsd.<keyword> key

Add VMware devices to x86 NOTES

Reviewed by: jhb
Obtained from: Juniper Networks, Inc.
Differential Revision: https://reviews.freebsd.org/D44528

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sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

guestrpc module to handle VMware backdoor port GuestRPC functionality

Convert existing FreeBSD vmware_hvcall function to take a channel
and parameter arguments.

Added vmware_guestrpc_cmd() to send

guestrpc module to handle VMware backdoor port GuestRPC functionality

Convert existing FreeBSD vmware_hvcall function to take a channel
and parameter arguments.

Added vmware_guestrpc_cmd() to send GuestRPC commands to the VMware
hypervisor. The sbuf argument is used for both the command to send
and to store the data to return to the caller.

The following KPIs can be used to get and set FreeBSD-specific guest
information in key/value pairs:
* vmware_guestrpc_set_guestinfo
- set a value into the guestinfo.fbsd.<keyword> key
* vmware_guestrpc_get_guestinfo
- get the value stored in the guestinfo.fbsd.<keyword> key

Add VMware devices to x86 NOTES

Reviewed by: jhb
Obtained from: Juniper Networks, Inc.
Differential Revision: https://reviews.freebsd.org/D44528

show more ...

sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

Detect whether x2APIC on VMWare is usable without interrupt
redirection support. Older versions of the hypervisor mis-interpret
the cpuid format in ioapic registers when x2APIC is turned on, but IR

Detect whether x2APIC on VMWare is usable without interrupt
redirection support. Older versions of the hypervisor mis-interpret
the cpuid format in ioapic registers when x2APIC is turned on, but IR
is not used by the guest OS.

Based on: Linux commit 4cca6ea04d31c22a7d0436949c072b27bde41f86
Tested by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 2 months

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Rework virtual machine hypervisor detection.
- Move the existing code to x86/x86/identcpu.c since it is x86-specific.
- If the CPUID2_HV flag is set, assume a hypervisor is present and query
the 0x

Rework virtual machine hypervisor detection.
- Move the existing code to x86/x86/identcpu.c since it is x86-specific.
- If the CPUID2_HV flag is set, assume a hypervisor is present and query
the 0x40000000 leaf to determine the hypervisor vendor ID. Export the
vendor ID and the highest supported hypervisor CPUID leaf via
hv_vendor[] and hv_high variables, respectively. The hv_vendor[]
array is also exported via the hw.hv_vendor sysctl.
- Merge the VMWare detection code from tsc.c into the new probe in
identcpu.c. Add a VM_GUEST_VMWARE to identify vmware and use that in
the TSC code to identify VMWare.

Differential Revision: https://reviews.freebsd.org/D1010
Reviewed by: delphij, jkim, neel

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