Re: RFC/patch portability: split kvm_vm_ioctl v3

Carsten Otte
2007-10-30T12:18:58Z

Dong, Eddie wrote:
> OK, so how can a device inform kernel for an IRQ in S390?
Oooh, that is a looong explanation. If you want to peek at it, see
http://publibz.boulder.ibm.com/epubs/pdf/a2278324.pdf . Chapter 6
covers Interruptions. I'd recommend to start with reading external
interruptions, because that is the one we'll be primarily be using
with kvm. External interruptions are used for things like timers,
hypercalls, and IPIs. The "Program Interruption Coditions" are also
worth reading, they cover things similar to general protection fault
on x86. Chapter 11 covers a different type of Interruptions, such as
error detection of hardware failures and hot-standby component
failover. Chapter 16 is also of interrest, it covers I/O interruptions.

Whenever you see me in person (next kvm forum maybe?), you are invited
to a lot of beer: I'll bring pen and paper and try to give you an
overview while we get drunk :-).

so long,
Carsten