MFC r276428:
Replace bhyve's minimal RTC emulation with a fully featured one in vmm.ko.

MFC r276432:
Initialize all fields of 'struct vm_exception exception' before passing it
to vm_inject_exception().

MFC r276763:
Clear blocking due to STI or MOV SS in the hypervisor when an instruction is
emulated or when the vcpu incurs an exception.

MFC r277149:
Clean up usage of 'struct vm_exception' to only to communicate information
from userspace to vmm.ko when injecting an exception.

MFC r277168:
Fix typo (missing comma).

MFC r277309:
Make the error message explicit instead of just printing the usage if the
virtual machine name is not specified.

MFC r277310:
Simplify instruction restart logic in bhyve.

MFC r277359:
Fix a bug in libvmmapi 'vm_copy_setup()' where it would return success even
if the 'gpa' was in the guest MMIO region.

MFC r277360:
MOVS instruction emulation.

MFC r277626:
Add macro to identify AVIC capability (advanced virtual interrupt controller)
in AMD processors.

MFC r279220:
Don't close a block context if it couldn't be opened avoiding a null deref.

MFC r279225:
Add "-u" option to bhyve(8) to indicate that the RTC should maintain UTC time.

MFC r279227:
Emulate MSR 0xC0011024 when running on AMD processors.

MFC r279228:
Always emulate MSR_PAT on Intel processors and don't rely on PAT save/restore
capability of VT-x. This lets bhyve run nested in older VMware versions that
don't support the PAT save/restore capability.

MFC r279540:
Fix warnings/errors when building vmm.ko with gcc.

MFC r273683
Move the ACPI PM timer emulation into vmm.ko.

MFC r273706
Change the type of the first argument to the I/O emulation handlers to
'struct vm *'.

MFC r273710
Add a comment explaining the intent behind the I/O reservation [0x72-0x77].

MFC r273744
Add foo_genassym.c files to DPSRCS so dependencies for them are generated.
This ensures these objects are rebuilt to generate an updated header of
assembly constants if needed.

MFC r274045
If the start bit, PxCMD.ST, is cleared and nothing is in-flight then
PxCI, PxSACT, PxCMD.CCS and PxCMD.CR should be 0.

MFC r274076
Improve the ability to cancel an in-flight request by using an interrupt,
via SIGCONT, to force the read or write system call to return prematurely.

MFC r274330
To allow a request to be submitted from within the callback routine of
a completing one increase the total by 1 but don't advertise it.

MFC r274931
Change the lower bound for guest vmspace allocation to 0 instead of using
the VM_MIN_ADDRESS constant.

MFC r275817
For level triggered interrupts clear the PIC IRR bit when the interrupt pin
is deasserted.

MFC r275850
Fix 8259 IRQ priority resolver.

MFC r275952
Various 8259 device model improvements.

MFC r275965
Emulate writes to the IA32_MISC_ENABLE MSR.

MFC r267311, r267330, r267811, r267884

Turn on interrupt window exiting unconditionally when an ExtINT is being
injected into the guest.

Add helper functions to populate VM exit information for rendezvous and
astpending exits.

Provide APIs to directly get 'lowmem' and 'highmem' size directly.

Expose the amount of resident and wired memory from the guest's vmspace

MFC 260206:
Rework the DSDT generation code a bit to generate more accurate info about
LPC devices. Among other things, the LPC serial ports now appear as
ACPI devices.

MFC r256709:

Eliminate unconditional debug printfs.

Linux writes to these nominally read-only registers,
so avoid having bhyve write warning messages to stdout
when the reg writes can be safely ignored. Change the
WPRINTF to DPRINTF which is conditional.

Approved by: re (delphij)

MFC r276428:
Replace bhyve's minimal RTC emulation with a fully featured one in vmm.ko.

MFC r276432:
Initialize all fields of 'struct vm_exception exception' before passing it
to vm_inject_exception().

MFC r276763:
Clear blocking due to STI or MOV SS in the hypervisor when an instruction is
emulated or when the vcpu incurs an exception.

MFC r277149:
Clean up usage of 'struct vm_exception' to only to communicate information
from userspace to vmm.ko when injecting an exception.

MFC r277168:
Fix typo (missing comma).

MFC r277309:
Make the error message explicit instead of just printing the usage if the
virtual machine name is not specified.

MFC r277310:
Simplify instruction restart logic in bhyve.

MFC r277359:
Fix a bug in libvmmapi 'vm_copy_setup()' where it would return success even
if the 'gpa' was in the guest MMIO region.

MFC r277360:
MOVS instruction emulation.

MFC r277626:
Add macro to identify AVIC capability (advanced virtual interrupt controller)
in AMD processors.

MFC r279220:
Don't close a block context if it couldn't be opened avoiding a null deref.

MFC r279225:
Add "-u" option to bhyve(8) to indicate that the RTC should maintain UTC time.

MFC r279227:
Emulate MSR 0xC0011024 when running on AMD processors.

MFC r279228:
Always emulate MSR_PAT on Intel processors and don't rely on PAT save/restore
capability of VT-x. This lets bhyve run nested in older VMware versions that
don't support the PAT save/restore capability.

MFC r279540:
Fix warnings/errors when building vmm.ko with gcc.

MFC r273683
Move the ACPI PM timer emulation into vmm.ko.

MFC r273706
Change the type of the first argument to the I/O emulation handlers to
'struct vm *'.

MFC r273710
Add a comment explaining the intent behind the I/O reservation [0x72-0x77].

MFC r273744
Add foo_genassym.c files to DPSRCS so dependencies for them are generated.
This ensures these objects are rebuilt to generate an updated header of
assembly constants if needed.

MFC r274045
If the start bit, PxCMD.ST, is cleared and nothing is in-flight then
PxCI, PxSACT, PxCMD.CCS and PxCMD.CR should be 0.

MFC r274076
Improve the ability to cancel an in-flight request by using an interrupt,
via SIGCONT, to force the read or write system call to return prematurely.

MFC r274330
To allow a request to be submitted from within the callback routine of
a completing one increase the total by 1 but don't advertise it.

MFC r274931
Change the lower bound for guest vmspace allocation to 0 instead of using
the VM_MIN_ADDRESS constant.

MFC r275817
For level triggered interrupts clear the PIC IRR bit when the interrupt pin
is deasserted.

MFC r275850
Fix 8259 IRQ priority resolver.

MFC r275952
Various 8259 device model improvements.

MFC r275965
Emulate writes to the IA32_MISC_ENABLE MSR.

MFC r267311, r267330, r267811, r267884

Turn on interrupt window exiting unconditionally when an ExtINT is being
injected into the guest.

Add helper functions to populate VM exit information for rendezvous and
astpending exits.

Provide APIs to directly get 'lowmem' and 'highmem' size directly.

Expose the amount of resident and wired memory from the guest's vmspace

MFC 260206:
Rework the DSDT generation code a bit to generate more accurate info about
LPC devices. Among other things, the LPC serial ports now appear as
ACPI devices.

MFC r256709:

Eliminate unconditional debug printfs.

Linux writes to these nominally read-only registers,
so avoid having bhyve write warning messages to stdout
when the reg writes can be safely ignored. Change the
WPRINTF to DPRINTF which is conditional.

Approved by: re (delphij)