[Minios-devel] [UNIKRAFT PATCHv4 00/23] Follow up patches for Arm64 support series#1/5

[Jia He <justin.he@xxxxxxx>]

This series address following comments:
01: Remove the check of '--enable-default-pie' in Makefile.uk,
02: Use macro-ed helper to simplify ioreg_read/write,
03: Use the same declaration for _text and _end,
04: Address comments for D-Cache operation function,
05: Get virtual address bits from id_aa64mmfr0_el1.PARange,
06: Ensure stack alignment for exceptions from EL1,
07: Invalidate D-Cache for modified area only,
08: Disable D-Cache before doing any change,
09: Calculate L3 table and page table size by image size,
10: Remove a -Wstringop-overflow warning for strncpy,
11: Remove useless blank line,

Some comments that haven't been addressed:
01: Check the MIDR and avoid the erratum on affected platform
     via an alternative or jump table. -- This erreta framework
     is not only for Arm but also for x86. I think we'd better
     to discuss in community.
02: Enable FIFO support for PL011.
03: Compare the pointers of different type is behaviour undefined
04: Do obfuscates arithmetic for kernel image symbols.

If I forgot anything please remind me.

You can get the 1st series by:
git clone https://github.com/hejianet/Unikraft_arm64.git -b \
                wei_1st_series_v4

---
Changlog
v3 -> v4: 
1. Drop 04 and 24 patches in v3. patch 04 is gcc compiler
  optimization related, not a blocking issue. The resolution is  
  under discussion. Patch 24 is not concerned.
2. Restore x18,x19 after using them in patch v4 14/23.
3. Fix IMAGE_ROUNDUP_SHIFT from 20 to 21 in patch v4 18/23.
4. lots of checkpatch warning.

v2 -> v3: Rebase to the latest upstream base.

v1 -> v2:
1. Add URL link for "Use macro-ed helper to simplify ioreg_read/write",
2. Invalidate & clean Cache for memory that would be used,
3. Improve code and commit comments for calculate pagebable size,
4. Use macros to replace hardcode values,
5. Use lsr/lsl to simplify 2MB round up,
6. Do obfuscates arithmetic for kernel image symbols,
7. Clean up kernel image symbols for C files. 

Jia He (23):
  build: Remove the check of '--enable-default-pie' in Makefile.uk
  plat/include: Use macro-ed helper to simplify ioreg_read/write for
    Arm64
  plat/common: Move global variables defined in link scripts to a header
  plat: Clean up kernel image symbols
  plat/common: Remove earlycloberr from SYSREG_READ32 for Arm64
  plat/common: Clean and invalidate D-Cache only when boot for Arm64
  plat/common: Use correct dsb operation flag for Arm64
  plat/common: Add referred source code URL for cache operation
  plat/kvm: Correct invalid indent character for Arm64
  plat/kvm: Get VIRT_BITS from id_aa64mmfr0_el1.PARange for Arm64
  arch/include: Add a _regs member to save origial stack pointer
  plat/kvm: Add __TRAP_STACK_SIZE for stack pointer while exiting trap
  plat/kvm: Remove redundant space while entering trap for Arm
  plat/kvm: Force align the stack pointer for Arm64 EL1 exceptions
  plat/kvm: Rename pagetable.S to pagetable64.S for Arm64
  plat/kvm: Invalidate D-Cache that may have been modified for Arm64
  plat/kvm: arm64: Clear pagetable memory with boot stack
  plat/kvm: arm64: Calculate pagetable size dynamically by image size
  plat/kvm: arm64: Build L3 page table for range greater than 2MB
  plat/kvm: arm64: Support build L3 table for large image size
  plat/kvm: arm64: Remove needless semicolons in assembly
  plat/kvm: arm64: Ensure there is no stall data in cache when boot
  plat/kvm: arm64: Remove superfluous blank line

 Makefile.uk                                 |   8 +-
 arch/arm/arm64/include/uk/asm/lcpu.h        |  16 ++-
 plat/common/arm/cache64.S                   |  31 ++----
 plat/common/include/arm/arm64/cpu.h         |  58 ++++------
 plat/common/include/arm/arm64/cpu_defs.h    |  16 ++-
 plat/common/include/sections.h              |  96 ++++++++++++++++
 plat/kvm/Makefile.uk                        |   2 +-
 plat/kvm/arm/entry64.S                      |  77 +++++++++----
 plat/kvm/arm/exceptions.S                   |  73 ++++++++++---
 plat/kvm/arm/{pagetable.S => pagetable64.S} | 115 +++++++++++++-------
 plat/kvm/arm/setup.c                        |  12 +-
 plat/kvm/include/kvm-arm/arm64/mm.h         |  14 ++-
 plat/kvm/memory.c                           |  23 ++--
 plat/kvm/x86/setup.c                        |   6 +-
 plat/xen/arm/setup.c                        |   6 +-
 plat/xen/include/xen-arm/mm.h               |   3 +-
 plat/xen/include/xen-x86/mm.h               |  21 ++--
 plat/xen/memory.c                           |  22 ++--
 plat/xen/x86/mm.c                           |  17 ++-
 plat/xen/x86/setup.c                        |   2 +-
 20 files changed, 405 insertions(+), 213 deletions(-)
 create mode 100644 plat/common/include/sections.h
 rename plat/kvm/arm/{pagetable.S => pagetable64.S} (84%)

-- 
2.17.1


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