On Mar 28, 2007, at 2:39 PM, Christian Ehrhardt wrote:
Hi,
I'm curently implementing H_PERFMON and found some code in the file
arch/powerpc/of_handler/papr.S which is not clear for me by just
reading it ;)
This is code for the OF stub that we but in Dom0 address space, it
usually only needs to perform console hcalls, there is no reason to
add the H_PERFMON hcall to this code, this code runs in a domain NOT
Xen.
I "guessed" this line together for H_PERFMON based on the other
lines around there, but what would the following line really do?
"PAPR(5, 1,papr_h_perfmon, H_PERFMON)"
This will create a C callable function (papr_h_perfmon) written in
assembler that for an hcall that takes 5 arguements and returns a
single result value.
Is it correct and if not why?
It is correct, but unecessary, please do not bother.
I assume it's some kind of registering xen implemented papr hooks
right?
Nope
-JX
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