[OmniOS-discuss] LX zones: configurations

[Dale Ghent]

If you are referring to things like VT-d, then no. VT-d is not relevant to this sort of virtualization and would provide no direct benefit to it. 

LX zones are quite literally a Linux kernel syscall compatibility/translation layer on top of the running illumos kernel. This layer is what takes syscalls from Linux apps/libc running inside a LX zone and either directly calls the corresponding illumos syscall if there's no difference between the two, or does what is needed to provide Linux semantics in the results if there isn't.

/dale

> On Jan 11, 2017, at 11:36 AM, Mini Trader <miniflowtrader at gmail.com> wrote:
> 
> If the hardware is there will it be used?
> 
> On Wed, Jan 11, 2017 at 11:33 AM Nahum Shalman <nshalman at omniti.com> wrote:
> On Wed, Jan 11, 2017 at 11:01 AM, Mini Trader <miniflowtrader at gmail.com> wrote:
> With respect to virtualization, should one be turning on any hardware specific feature for the VM to properly use LX or it doesn't matter?
> 
> LX doesn't require hardware virtualization support. LX zones are like other zones except that they use an emulated Linux system call table instead of a native illumos system call table.
> No actual Linux kernel is used so there's no need for the hardware shenanigans (and their associated performance costs) to trick Linux into thinking it's on hardware.
> 
> -Nahum
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