Currently this just modifies the rule but not any of the proofs that use
it. The old version is kept for now but should be removed once all of
the proofs are updated.
Signed-off-by: Corey Lewis <Corey.Lewis@data61.csiro.au>
This brings the naming convention closer to the other architectures,
closer to the Haskell, and closer to the constant renames that happened
in C. It is, however, quite an invasive change.
kernelBase_addr -> pptrBase
kernelBase -> pptrBase
physMappingOffset -> ptrBaseOffset
Signed-off-by: Rafal Kolanski <rafal.kolanski@data61.csiro.au>
Remove resolve_address_bits'.simps from the simp set at the definition
site, instead of in the middle of the proofs.
Signed-off-by: Corey Lewis <Corey.Lewis@data61.csiro.au>
In Isabelle2020, when isabelle jedit is started without a session
context, e.g. `isabelle jedit -l ASpec`, theory imports with path
references cause the isabelle process to hang.
Since sessions now declare directories, Isabelle can find those files
without path reference and we therefore remove all such path references
from import statements. With this, `jedit` and `build` should work with
and without explicit session context as before.
Signed-off-by: Gerwin Klein <gerwin.klein@data61.csiro.au>
Isabelle2020 requires each session to declare it own set of directories that
may not overlap with other session's directories. This commit reorganises
files to comply with that requirement.
Signed-off-by: Gerwin Klein <gerwin.klein@data61.csiro.au>
Create ArchMove_R.thy for transporting arch specific lemmas (and generic
lemmas that are used somewhat specifically by one architecture) to theory
files before Refine.
Create Move_R.thy as an arch generic Refine theory file for transporting
generic lemmas to theory files before Refine.
Also delete some lemmas that have existed earlier already or are not
needed.
Rename Move.thy in CRefine to Move_C.thy for consistency.
Several constants are are added to the top level crunch_ignore statement in
Bits_R.thy, then removed from individual crunch statements across Refine and
CRefine.
diminished takes two caps and asserts that one is equal to the other
except that one may have fewer rights. We remove this definition and all
references to it, replacing diminished with equality.
Prior to this commit the kernel would always trigger a full reschedule
on setPriority. This change allows the kernel to attempt a direct
switch, avoiding invoking the scheduler.
Fixes a case where a thread can go from Running->Inactive->Restart and
use a restart PC that is out of date. An out of date restart PC occurs
when a thread was transitioned to running after being in a blocked
state, but was never scheduled and so did not execute the traps code
that updates the restart PC.
This also renames relevant register names for consistency across
architectures (FaultIP and NextIP).
arm ainvs: cleanup
Abbreviate Hoare triples that do not care about the return value and
whose pre and post conditions are the same.
x64 ainvs: cleanup
ainvs: cleanup
x64 ainvs: cleanup
drefine: cleanup
Corey Lewis
Rafal Kolanski
Gerwin Klein
Miki Tanaka
Victor Phan
MiladKetabi
Amirreza Zarrabi
Michael McInerney
Edward Pierzchalski
Matthew Brecknell
Japheth Lim