[kvm-unit-tests PATCH v2 00/13] Enable EFI support

[Andrew Jones]

This series starts with some fixes for backtraces for bugs found
when tracing with riscv EFI builds. The series then brings EFI
support to riscv, basing the approach heavily on arm64's support
(including arm64's improvements[1]). It should now be possible
to launch tests from EFI-capable bootloaders.

[1] https://lore.kernel.org/all/20240305164623.379149-20-andrew.jones@linux.dev/

v2:
 - Rebase on v3 of arm's efi improvement series
 - Just make base_address a weak function rather than duplicate it
 - Always preserve .so files (they're useful for debug)
 - Build the sieve test for EFI
 - Pick up a couple tags

Thanks,
drew

Andrew Jones (13):
  riscv: Call abort instead of assert on unhandled exceptions
  riscv: show_regs: Prepare for EFI images
  treewide: lib/stack: Fix backtrace
  treewide: lib/stack: Make base_address arch specific
  riscv: Import gnu-efi files
  riscv: Tweak the gnu-efi imported code
  riscv: Enable building for EFI
  riscv: efi: Switch stack in _start
  efi: Add support for obtaining the boot hartid
  riscv: Refactor setup code
  riscv: Enable EFI boot
  riscv: efi: Add run script
  riscv: efi: Use efi-direct by default

 configure                     |  12 +-
 lib/arm/stack.c               |  13 +--
 lib/arm64/stack.c             |  12 +-
 lib/efi.c                     |  33 ++++++
 lib/elf.h                     |   5 +
 lib/riscv/asm/setup.h         |   5 +
 lib/riscv/processor.c         |  11 +-
 lib/riscv/setup.c             | 170 +++++++++++++++++++++-------
 lib/riscv/stack.c             |  30 +++--
 lib/s390x/stack.c             |  12 +-
 lib/stack.c                   |   8 +-
 lib/stack.h                   |  24 +++-
 lib/x86/stack.c               |  12 +-
 riscv/Makefile                |  27 ++++-
 riscv/cstart.S                |   4 +
 riscv/efi/crt0-efi-riscv64.S  | 205 ++++++++++++++++++++++++++++++++++
 riscv/efi/elf_riscv64_efi.lds | 142 +++++++++++++++++++++++
 riscv/efi/reloc_riscv64.c     |  91 +++++++++++++++
 riscv/efi/run                 | 106 ++++++++++++++++++
 riscv/flat.lds                |   1 +
 riscv/run                     |   2 +-
 21 files changed, 828 insertions(+), 97 deletions(-)
 create mode 100644 riscv/efi/crt0-efi-riscv64.S
 create mode 100644 riscv/efi/elf_riscv64_efi.lds
 create mode 100644 riscv/efi/reloc_riscv64.c
 create mode 100755 riscv/efi/run

-- 
2.44.0