>>> On 1/22/2013 at 04:13 PM, John McKown <[email protected]> wrote: > OK, if I read and understood all the source, I wouldn't need to ask this. > > On Intel, the Kernel is invoked via an INT instruction. And it seems > to only use a single INT number at that; number 0x80 (128 decimal). > Does the zSeries version do the same, but using the SVC instruction > instead? Does it also only use one SVC number (which one)? Does it use > any of the more advanced facilities such as PC (non-ss or cp-ss), PR, > or access registers?
Linux on System z does use access registers because it sets up primary, secondary, etc. address spaces to keep kernel and user space memory isolated from each other. Mark Post ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
