[PATCH 0/4] target/ppc: powerpc_excp improvements (9/9)

[Fabiano Rosas]

This is the last part of this series of changes to the exceptions
code.

First two patches remove the powerpc_excp_legacy function which is not
needed anymore and move some of the common code from the individual
powerpc_excp_* functions into powerpc_excp.

Third patch makes the sanity check against msr_mask generic to check
all MSR bits.

Last patch removes excp_model from the AIL code for BookS. We now have
only two instances left of excp_model being used as an identifier for
specific CPUs.

== Next steps ==

I'll work on the next steps which include some cleanups to cpu_init
and hopefully moving into separate files for each CPU family.

I'm also thinking about some changes to the POWERPC_FAMILY macro to
remove the _FAMILY part, since this code has been used for a long time
to create single CPUs instead of a whole family. I think the
separation we have now with the exception models better represents the
concept of family. So I would rather call the macro POWERPC_CPU and
add (if needed) a new field 'family' to the class. With that and
having one family per file, we would be able to remove the excp_model
enum altogether by adding a pointer to powerpc_excp like we have for
init_proc.

I'll put all of that in an RFC so we can discuss.

Thanks

Fabiano Rosas (4):
  target/ppc: Remove powerpc_excp_legacy
  target/ppc: powerpc_excp: Move common code to the caller function
  target/ppc: Assert if MSR bits differ from msr_mask during exceptions
  target/ppc: books: Remove excp_model argument from ppc_excp_apply_ail

 target/ppc/excp_helper.c | 623 ++-------------------------------------
 1 file changed, 31 insertions(+), 592 deletions(-)

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2.34.1