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2142 Commits

Author SHA1 Message Date
Joel Beeren 40f4818d40 arm-hyp haskell: correct makeArchFaultMessage for VGICMaintenance faults 2017-06-19 14:32:39 +10:00
Gerwin Klein c63ba94746 arm-hyp crefine: close 1 sorry in VSpace_C 2017-06-19 14:32:39 +10:00
Miki Tanaka 11d7a7ab62 arm-hyp crefine: change names of vcpu ccorres rules, vpcuDisable_ccorres -> vcpu_disable_ccorres, etc. 
similarly for vcpu_save, vcpu_enable, and vcpu_restore
 2017-06-19 14:32:39 +10:00
Miki Tanaka 082295491e arm-hyp crefine: vcpu_disable_ccorres done 2017-06-19 14:32:39 +10:00
Alejandro Gomez-Londono 57c20b69b4 arm-hyp crefine: Finalise_C sorry free 2017-06-19 14:32:39 +10:00
Joel Beeren e1c3e764f8 arm-hyp crefine: narrowed down sorries in Ipc_C to specific subgoals 2017-06-19 14:32:39 +10:00
Matthew Brecknell 35df51dd8f arm-hyp refine: prove word lemmas relating to duplicate page table entries 2017-06-19 14:32:39 +10:00
Matthew Brecknell 9ea2232d11 Word_Lib: miscellaneous conditional injectivity rules 2017-06-19 14:32:39 +10:00
Matthew Brecknell 0bbfb85d85 Word_Lib: add le_mask_shiftl_le_mask 2017-06-19 14:32:39 +10:00
Joel Beeren 220fa70586 arm-hyp crefine: cleared sorries in Tcb_C 2017-06-19 14:32:38 +10:00
Joel Beeren 0c40f5bbb6 arm-hyp crefine: cleared 3 sorries in Tcb_C 2017-06-19 14:32:38 +10:00
Rafal Kolanski 87ac6d5508 arm-hyp crefine: decodeVCPUSetTCB_ccorres 
+ perform
 2017-06-19 14:32:38 +10:00
Gerwin Klein 2d4f1158cd arm-hyp crefine: reduce Retype_C to 1 sorry 2017-06-19 14:32:38 +10:00
Gerwin Klein f27921bccb arm-hyp crefine: Schedule_C sorry-free 2017-06-19 14:32:38 +10:00
Gerwin Klein c81c652f00 arm-hyp crefine: (minor) reduce Syscall to vgicMaintenance sorry 2017-06-19 14:32:38 +10:00
Rafal Kolanski 7769026872 arm-hyp crefine: decodeVCPUWriteReg_ccorres 
+ perform
 2017-06-19 14:32:38 +10:00
Gerwin Klein b82014766a arm-hyp refine: fix resolveVAddr breakage 2017-06-19 14:32:38 +10:00
Gerwin Klein 0afd65ea55 arm-hyp crefine: close resolveVAddr sorry 2017-06-19 14:32:38 +10:00
Gerwin Klein 31984563d5 arm-hyp: switch quick_and_dirty back on for Refine 
(until those sorries are done)
 2017-06-19 14:32:38 +10:00
Gerwin Klein 85053b2580 arm-hyp refine: new vs_valid_duplicates 
The Haskell invariant now describes the page mappings necessary for LargePage
and SuperSection. Updates to refine/* to repair the corresponding fallout.

This commit moves some of the largePagePTEOffset et al lemmas from CRefine up
into Refine.

A small number of small but fiddly word lemmas are currently still sorried.
 2017-06-19 14:32:38 +10:00
Gerwin Klein 7bb68406d6 arm-hyp design/skel: define pageBase manually 
pageBase is now generic in Haskell, but since PAddr, VPtr etc all map to word
in Isabelle, the generic type declaration would lead to an error.

Only necessary in ARM_HYP, but could be done in ARM as well if necessary.
 2017-06-19 14:32:38 +10:00
Gerwin Klein 424df79856 arm-hyp haskell: resolveVAddr needs to mask 
LargePages and SuperSections are not duplicated as in normal ARM, so we need
to mask to get to the base address.
 2017-06-19 14:32:38 +10:00
Gerwin Klein cbc528beba arm-hyp haskell: make LargePage and SuperSection contiguous 
In HYP mode, large pages and super sections are encoded by a set of small
pages and section entries that have the contiguous bit set. The hardware must
be able to ignore that bit and still make the correct translation, so they
most point to the correct base address in each entry, instead of being
duplicates as in normal (non-HYP) mode.
 2017-06-19 14:32:38 +10:00
Rafal Kolanski f09ba20de5 arm-hyp crefine: decodeVCPUReadReg_ccorres 
Integrated into decodeVCPUInvocation.
 2017-06-19 14:32:38 +10:00
Rafal Kolanski 29b20dc71a arm-hyp crefine: add extended wp rules for readVCPUReg to Move 2017-06-19 14:32:37 +10:00
Rafal Kolanski daea169e14 arm-hyp crefine: invokeVCPUReadReg_ccorres 
Significantly complicated, needing multiple updates from kernel team to get
the reply mechanism right.
 2017-06-19 14:32:37 +10:00
Alejandro Gomez-Londono 11a709caa4 arm-hyp crefine: associateVCPUTCB_ccorres + dissociateVCPUTCB_ccorres + others 
* sanitiseSetRegister_ccorres
  * vcpuInvalidateActive_ccorres
  * armHSCurVCPU_update_active_false_ccorres
  * + Other auxiliary lemmas
 2017-06-19 14:32:37 +10:00
Rafal Kolanski daa4e579e4 arm-hyp crefine: writeVCPUReg_ccorres 2017-06-19 14:32:37 +10:00
Rafal Kolanski 2ef0ba91db arm-hyp crefine: fix arg name for vcpu reg machine ops 
Was value_', should have been val_'.
 2017-06-19 14:32:37 +10:00
Rafal Kolanski 25b178e4bd arm-hyp crefine: solve_rf_sr_vcpu_update method 
Solves goals of the following shape (rf_sr on fields of VCPUs):
   ⟦ (σ, σ') ∈ rf_sr; ko_at' vcpu vcpuptr σ ⟧
    ⟹ (σ⦇ksPSpace := ksPSpace σ(vcpuptr ↦ KOArch (KOVCPU (f vcpu)))⦈,
       globals_update
        (t_hrs_'_update (hrs_mem_update (heap_update (Ptr &(vcpu_Ptr vcpuptr→[''some_field''])) val)))
        σ')
      ∈ rf_sr

I was not able to generalise this more. A rule would be better, but I don't
know how to bind one to the textual field lookup.

It's also slow, 10s per invocation, but at least it works.
 2017-06-19 14:32:37 +10:00
Rafal Kolanski d0eedd118b arm-hyp crefine: sorry resolveVAddr_ccorres due to C changes 2017-06-19 14:32:37 +10:00
Rafal Kolanski cb06acba7b arm-hyp crefine: readVCPUReg_ccorres 2017-06-19 14:32:37 +10:00
Rafal Kolanski 57c3c70437 arm-hyp crefine: add cvcpu_relation_regs_def 
expands cvcpu_relation into relations of VCPU registers
 2017-06-19 14:32:37 +10:00
Rafal Kolanski cce2e0805e arm-hyp crefine: add rewrites for C versions of vcpureg comparisons 
see: vcpureg_eq_use_types

Transforms (of_nat (fromEnum reg) = scast seL4_VCPUReg_SCTLR)
      into (reg = VCPURegSCTLR)
letting you do cases on reg. There are no cases for seL4_VCPUReg*.

Inspired by invocation_eq_use_types
 2017-06-19 14:32:37 +10:00
Rafal Kolanski 40057dff26 arm-hyp crefine: trivial generalisation in IpcCancel_C 
[] -> hs in setThreadState_ccorres
 2017-06-19 14:32:37 +10:00
Miki Tanaka 903417e288 arm-hyp crefine: some progress in VSpace_C 2017-06-19 14:32:37 +10:00
Miki Tanaka e35dcc6b97 arm-hyp crefine: fix return types (get_gic_vcpu_ctrl_vmcr, get_gic_vcpu_ctrl_apr) 2017-06-19 14:32:37 +10:00
Miki Tanaka 0af76b3242 arm-hyp crefine: update VSpace_R for new vcpu_disable (still with sorries) 2017-06-19 14:32:37 +10:00
Miki Tanaka c132fb331c arm-hyo Refine: fix vcouDisable_corres for spec updates 2017-06-19 14:32:37 +10:00
Miki Tanaka 69adb29a89 arm-hyp abstract: add missing isb machine op in vcpu_disable 2017-06-19 14:32:37 +10:00
Miki Tanaka 16b6f26483 arm-hyp haskell: add missing isb in vcpuDisable 2017-06-19 14:32:37 +10:00
Miki Tanaka ef6e2dc32c arm-hyp machine spec: get_gic_vcpu_ctrl_eisr1 shoud call get_gic_vcpu_ctrl_eisr1_val (fix) 2017-06-19 14:32:37 +10:00
Rafal Kolanski 188e0ddfc0 arm-hyp crefine: skeleton for decodeARMVCPUInvocation_ccorres 
Needs 4 VCPU-related ccorres rules and final precondition proof.
 2017-06-19 14:32:37 +10:00
Rafal Kolanski b46dbe8001 arm-hyp crefine: Arch_decodeInvocation_ccorres + decodeARMMMUInvocation_ccorres 
Repurposed nearly all of old Arch_decodeInvocation_ccorres into
decodeARMMMUInvocation_ccorres.
Educated guess at a stub for decodeARMVCPUInvocation_ccorres.
 2017-06-19 14:32:37 +10:00
Rafal Kolanski 16946993c6 arm-hyp crefine: resolveVAddr_ccorres 
Added valid_objs' to preconditions due to weakness of cpte_relation
w.r.t. large page base pointer alignment.
 2017-06-19 14:32:36 +10:00
Rafal Kolanski fa5bb8e4f4 arm-hyp crefine: createSafeMappingEntries_PTE_ccorres, some cleanup 2017-06-19 14:32:36 +10:00
Rafal Kolanski cff16ccf1e arm-hyp crefine: decodeARMPageDirectoryInvocation_ccorres 2017-06-19 14:32:36 +10:00
Rafal Kolanski 56f411c85d arm-hyp crefine: widen sorry in Arch_C 
Some accidental intermediate work got in at some point. Oops.
 2017-06-19 14:32:36 +10:00
Rafal Kolanski e7ce103775 arm-hyp crefine: widen sorry in VSpace_C due to C changes 2017-06-19 14:32:36 +10:00
Rafal Kolanski c172938247 arm-hyp crefine: finish decodeARMFrameInvocation_ccorres 2017-06-19 14:32:36 +10:00