[SCM] GNU Mach branch, master, updated. v1.8-554-g6a46db9f

[Samuel Thibault]

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- Log -----------------------------------------------------------------
commit 6a46db9fe035c26ab549bc0b681469fc650141d6
Author: Luca Dariz <luca@orpolo.org>
Date:   Sun Feb 12 18:28:18 2023 +0100

    move kernel virtual address space to upper addresses
    
    * i386/i386/vm_param.h: adjust constants to the new kernel map
      - the boothdr.S code already sets up a temporary map to higher
        addresses, so we can use INIT_VM_MIN_KERNEL_ADDRESS as in xen
      - increase the kernel map size to accomodate for bigger structures
        and more memory
      - adjust kernel max address and directmap limit
    * i386/i386at/biosmem.c: enable directmap check also on x86_64
    * i386/include/mach/i386/vm_param.h: increase user virtual memory
      limit as it's not conflicting with the kernel's anymore
    * i386/intel/pmap.h: adjust lin2pdenum_cont() and INTEL_PTE_PFN to the
      new kernel map
    * x86_64/Makefrag.am: change KERNEL_MAP_BASE to be above 4G, and
      according to mcmodel=kernel. This will allow to use the full memory
      address space.
    Message-Id: <20230212172818.1511405-10-luca@orpolo.org>

-----------------------------------------------------------------------

Summary of changes:
 i386/i386/vm_param.h              | 20 ++++++++++++++++----
 i386/i386at/biosmem.c             |  2 --
 i386/include/mach/i386/vm_param.h |  2 +-
 i386/intel/pmap.h                 | 12 ++++++++++--
 x86_64/Makefrag.am                | 12 ++++++------
 5 files changed, 33 insertions(+), 15 deletions(-)


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