The (no_asm) for corres goals is now properly enforced, which means
it is now really necessary to provide terminal corres rules in their
proper form.
Signed-off-by: Gerwin Klein <gerwin.klein@proofcraft.systems>
This also renames most of the corres* methods to corresK* methods,
including corressimp -> corresKsimp.
Signed-off-by: Gerwin Klein <gerwin.klein@proofcraft.systems>
This also moves several lemmas required for obj_range'_disjoint
to Invariants_H
Signed-off-by: Michael McInerney <michael.mcinerney@proofcraft.systems>
wp rules for most operators such as return, get, gets are named
return_wp, get_wp, etc. Then when, whenE, unless, unlessE operators had
an additional hoare_.. prefix that this commit removes for more
consistency.
Signed-off-by: Gerwin Klein <gerwin.klein@proofcraft.systems>
According to the RISC-V spec, PageTablePTEs must have the access,
dirty, and user bits set to 0. This means that
- there is no user attribute that can be set on PageTablePTEs
(removed from Haskell spec)
- the encoding for PageTablePTEs in C must have 0 in these fields
instead of 1.
See PR seL4/seL4#880 for discussion and corresponding C changes.
Signed-off-by: Gerwin Klein <gerwin.klein@proofcraft.systems>
findVSpaceForASIDAssert is needed for modeling the hardware ASID lookup
on ARM. None of AARCH64, RISCV64, X64 use that mechanism and the
function is unused. There are some proof about it, but those are unused
as well. This commit removes all of these.
Signed-off-by: Gerwin Klein <gerwin.klein@proofcraft.systems>
Three main thrusts:
- speed up the `updateMDB_the_lot` chain by using more targeted
proof methods
- drastically reduce goal size by removing unused assumptions when
that becomes possible (this is the largest overall speed win)
- use `subgoal` to unblock interactive proof progress
Signed-off-by: Gerwin Klein <gerwin.klein@proofcraft.systems>
Add a bundle for global word simp set changes -- unfortunately we
can't actually do this globally, because they are mostly simp rule
removals which will be overwritten by theory merges. So this new
l4v_word_lib bundle will have to be activated/unbundled multiple times.
Signed-off-by: Gerwin Klein <gerwin.klein@proofcraft.systems>
This includes replacing previous ASpec names for such constants with
the names used in Haskell/ExecSpec to avoid duplication. This also
makes some of the proofs slightly more generic.
Signed-off-by: Gerwin Klein <gerwin.klein@proofcraft.systems>
Proofs now don't care about numDomains, except for a small interface in
Invariants_H. The interface is currently by convention only, and has no
enforcement capabilities.
Signed-off-by: Rafal Kolanski <rafal.kolanski@proofcraft.systems>
- in VSpace_R
- the same method added to each arch; would be good to unify via
arch split in the future
- also includes some style cleanup
Signed-off-by: Miki Tanaka <miki.tanaka@data61.csiro.au>
- this introduces idle_tcb' which is defined directly using tcb fields
- backport from MCS ARM Refine
Signed-off-by: Miki Tanaka <miki.tanaka@data61.csiro.au>
Importing Init_R into ADT_H was causing EmptyFail_H to fail. Since
no other theories actually depend on Init_R we can instead include
it in the Refine session directly.
Signed-off-by: Mitchell Buckley <mitchell.alan.buckley@gmail.com>
Describe an extremely simple abstract kernel state, and haskell state
that obey the state relation. These states are `zeroed` in the sense
that they have empty heaps, and default values of 0, False, None, []
and similar in all fields.
These states do not satisfy invs or invs', and this is not as strong
a result as showing that kernel initial states satisfy the state
relation, but it is a good sanity check on the relation itself.
Signed-off-by: Mitchell Buckley <mitchell.buckley@data61.csiro.au>
Ideally all corres lemmas of the form
`corres rrel P P' my_abstract_function myHaskellFunction`
should be named `myHaskellFunction_corres`.
This commit renames over 200 lemmas to match this style.
Signed-off-by: Mitchell Buckley <mitchell.alan.buckley@gmail.com>
Co-authored-by: Victor Phan <Victor.Phan@data61.csiro.au>
Gerwin Klein
Corey Lewis
Michael McInerney
Rafal Kolanski
Ryan Barry
Ryan Barry
Miki Tanaka
Mitchell Buckley
Mitchell Buckley