KVM: arm64: Remove __hyp_text macro, use build rules instead
authorDavid Brazdil <dbrazdil@google.com>
Thu, 25 Jun 2020 13:14:19 +0000 (14:14 +0100)
committerMarc Zyngier <maz@kernel.org>
Sun, 5 Jul 2020 17:38:45 +0000 (18:38 +0100)
commitc50cb04303cb88c517715b078e3e010c024af1a5
tree8b0ecfb937dbe66af0b99e884b6d7a1dbe3541c8
parentc04dd455eb311d2d289c9d81d080eaf11a06cebf
KVM: arm64: Remove __hyp_text macro, use build rules instead

With nVHE code now fully separated from the rest of the kernel, the effects of
the __hyp_text macro (which had to be applied on all nVHE code) can be
achieved with build rules instead. The macro used to:
  (a) move code to .hyp.text ELF section, now done by renaming .text using
      `objcopy`, and
  (b) `notrace` and `__noscs` would negate effects of CC_FLAGS_FTRACE and
      CC_FLAGS_SCS, respectivelly, now those flags are  erased from
      KBUILD_CFLAGS (same way as in EFI stub).

Note that by removing __hyp_text from code shared with VHE, all VHE code is now
compiled into .text and without `notrace` and `__noscs`.

Use of '.pushsection .hyp.text' removed from assembly files as this is now also
covered by the build rules.

For MAINTAINERS: if needed to re-run, uses of macro were removed with the
following command. Formatting was fixed up manually.

  find arch/arm64/kvm/hyp -type f -name '*.c' -o -name '*.h' \
       -exec sed -i 's/ __hyp_text//g' {} +

Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200625131420.71444-15-dbrazdil@google.com
17 files changed:
arch/arm64/include/asm/kvm_emulate.h
arch/arm64/include/asm/kvm_hyp.h
arch/arm64/kvm/hyp/aarch32.c
arch/arm64/kvm/hyp/entry.S
arch/arm64/kvm/hyp/fpsimd.S
arch/arm64/kvm/hyp/hyp-entry.S
arch/arm64/kvm/hyp/include/hyp/debug-sr.h
arch/arm64/kvm/hyp/include/hyp/switch.h
arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h
arch/arm64/kvm/hyp/nvhe/Makefile
arch/arm64/kvm/hyp/nvhe/debug-sr.c
arch/arm64/kvm/hyp/nvhe/switch.c
arch/arm64/kvm/hyp/nvhe/sysreg-sr.c
arch/arm64/kvm/hyp/nvhe/timer-sr.c
arch/arm64/kvm/hyp/nvhe/tlb.c
arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c
arch/arm64/kvm/hyp/vgic-v3-sr.c