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Add support for whpx accelerator to qemu builder 

Windows Hypervisor Platform (WHPX) is the Windows counterpart to HVF and
KVM. It's an operating system provided component that provides
virtualization acceleration support.

This is kind of the missing counterpart to https://github.com/hashicorp/packer/pull/6193.
QEMU 2.12 also added support for WHPX.

There's no support for libvirt on Windows so nothing was added in those
areas.

The popular QEMU for Windows distribution does not have WHPX support
built-in for legal reasons as the maintainer does not wish to use or
obtain any part of Microsoft's SDK to compile the distribution.
This commit is contained in:
Nelson Chen 2018-12-25 22:49:42 -08:00
parent 141f3b29f3
commit b39f398fda
2 changed files with 9 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
builder/qemu/builder.go
View File

@ -28,6 +28,7 @@ var accels = map[string]struct{}{
"xen": {},
"hax": {},
"hvf": {},
"whpx": {},
}
var netDevice = map[string]bool{
@ -274,7 +275,7 @@ func (b *Builder) Prepare(raws ...interface{}) ([]string, error) {
if _, ok := accels[b.config.Accelerator]; !ok {
errs = packer.MultiErrorAppend(
errs, errors.New("invalid accelerator, only 'kvm', 'tcg', 'xen', 'hax', 'hvf', or 'none' are allowed"))
errs, errors.New("invalid accelerator, only 'kvm', 'tcg', 'xen', 'hax', 'hvf', 'whpx', or 'none' are allowed"))
}
if _, ok := netDevice[b.config.NetDevice]; !ok {

10
website/source/docs/builders/qemu.html.md.erb
View File

@ -107,7 +107,7 @@ Linux server and have not enabled X11 forwarding (`ssh -X`).
### Optional:
- `accelerator` (string) - The accelerator type to use when running the VM.
This may be `none`, `kvm`, `tcg`, `hax`, `hvf`, or `xen`. The appropriate
This may be `none`, `kvm`, `tcg`, `hax`, `hvf`, `whpx`, or `xen`. The appropriate
software must have already been installed on your build machine to use the
accelerator you specified. When no accelerator is specified, Packer will try
to use `kvm` if it is available but will default to `tcg` otherwise.
@ -116,12 +116,16 @@ Linux server and have not enabled X11 forwarding (`ssh -X`).
upstream issue which can be tracked
[here](https://github.com/intel/haxm/issues/20).
-> The `hvf` accelerator is new and experimental as of
-> The `hvf` and `whpx` accelerator are new and experimental as of
[QEMU 2.12.0](https://wiki.qemu.org/ChangeLog/2.12#Host_support).
You may encounter issues unrelated to Packer when using it. You may need to
You may encounter issues unrelated to Packer when using these. You may need to
add [ "-global", "virtio-pci.disable-modern=on" ] to `qemuargs` depending on the
guest operating system.
-> For `whpx`, note that [Stefan Weil's QEMU for Windows distribution](https://qemu.weilnetz.de/w64/)
does not include WHPX support and users may need to compile or source a
build of QEMU for Windows themselves with WHPX support.
- `boot_command` (array of strings) - This is an array of commands to type
when the virtual machine is first booted. The goal of these commands should
be to type just enough to initialize the operating system installer. Special