[kvm-unit-tests PATCH v2 0/6] Misc assembly fixes and cleanups

From: Alexandru Elisei <alexandru.elisei@arm.com>
To: drjones@redhat.com, kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu
Cc: andre.przywara@arm.com
Subject: [kvm-unit-tests PATCH v2 0/6] Misc assembly fixes and cleanups
Date: Mon, 22 Mar 2021 15:06:35 +0000	[thread overview]
Message-ID: <20210322150641.58878-1-alexandru.elisei@arm.com> (raw)

This series is mostly fixes and cleanups for things I found when playing
with EFI support. Most of them I hope are fairly self-explanatory.

What is clearly aimed at running on baremetal is patch #2 ("arm/arm64:
Remove dcache_line_size global variable"), which is needed because the
startup environment is different for EFI apps and we're going to need to do
cache maintenance before setup() is run.

Patch #4 ("lib: arm64: Consolidate register definitions to sysreg.h") is
there to make importing register definitions and other header files from
Linux (like el2_setup.h) easier by switching to the same layout. And arm
is already using sysreg.h for SCTLR fields.

Changes in v2:
* Gathered Reviewed-by tags, thank you!
* For patch #2 ("arm/arm64: Remove dcache_line_size global variable"), I've
  modified the commit message to mention the change in parameters for
  dcache_by_line_op, I've added the proper header guards to
  lib/arm/asm/assembler.h and I've changed raw_dcache_line_size to use ubfx
  instead of ubfm.

Alexandru Elisei (6):
  arm64: Remove unnecessary ISB when writing to SPSel
  arm/arm64: Remove dcache_line_size global variable
  arm/arm64: Remove unnecessary ISB when doing dcache maintenance
  lib: arm64: Consolidate register definitions to sysreg.h
  arm64: Configure SCTLR_EL1 at boot
  arm64: Disable TTBR1_EL1 translation table walks

 lib/arm/asm/assembler.h       | 53 ++++++++++++++++++++++++++++++++++
 lib/arm/asm/processor.h       |  7 -----
 lib/arm64/asm/arch_gicv3.h    |  6 ----
 lib/arm64/asm/assembler.h     | 54 +++++++++++++++++++++++++++++++++++
 lib/arm64/asm/pgtable-hwdef.h |  1 +
 lib/arm64/asm/processor.h     | 17 -----------
 lib/arm64/asm/sysreg.h        | 24 ++++++++++++++++
 lib/arm/setup.c               |  7 -----
 arm/cstart.S                  | 19 ++----------
 arm/cstart64.S                | 28 +++++++-----------
 10 files changed, 145 insertions(+), 71 deletions(-)
 create mode 100644 lib/arm/asm/assembler.h
 create mode 100644 lib/arm64/asm/assembler.h

-- 
2.31.0