arm64 fixes for 6.3-rc1

Hi Linus,

Could you please pull the changes below? There are a few arm64 fixes that turned up during the merging window or just before it opened. They are based on top of the arm64-upstream tag I sent last week. There is a near conflict in arch/arm64/Kconfig but it seems that git is smart enough to figure it out. Thanks.

The following changes since commit d54170812ef1c80e0fa3ed3e554a0bbfc2920d9d:

arm64: fix .idmap.text assertion for large kernels (2023-02-20 18:23:35 +0000)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux tags/arm64-fixes

for you to fetch changes up to 010338d729c1090036eb40d2a60b7b7bce2445b8:

arm64: kaslr: don't pretend KASLR is enabled if offset < MIN_KIMG_ALIGN (2023-02-28 11:21:04 +0000)

----------------------------------------------------------------
arm64 fixes:

- In copy_highpage(), only reset the tag of the destination pointer if KASAN_HW_TAGS is enabled so that user-space MTE does not interfere with KASAN_SW_TAGS (which relies on top-byte-ignore).

- Remove warning if SME is detected without SVE, the kernel can cope with such configuration (though none in the field currently).

- In cfi_handler(), pass the ESR_EL1 value to die() for consistency with other die() callers.

- Disable HUGETLB_PAGE_OPTIMIZE_VMEMMAP on arm64 since the pte manipulation from the generic vmemmap_remap_pte() does not follow the required ARM break-before-make sequence (clear the pte, flush the TLBs, set the new pte). It may be re-enabled once this sequence is sorted.

- Fix possible memory leak in the arm64 ACPI code if the SMCCC version and conduit checks fail.

- Forbid CALL_OPS with CC_OPTIMIZE_FOR_SIZE since gcc ignores -falign-functions=N with -Os.

- Don't pretend KASLR is enabled if offset < MIN_KIMG_ALIGN as no randomisation would actually take place.

----------------------------------------------------------------
Ard Biesheuvel (1):
arm64: kaslr: don't pretend KASLR is enabled if offset < MIN_KIMG_ALIGN

Catalin Marinas (1):
arm64: mm: hugetlb: Disable HUGETLB_PAGE_OPTIMIZE_VMEMMAP

Mark Brown (1):
arm64/fpsimd: Remove warning for SME without SVE

Mark Rutland (1):
arm64: ftrace: forbid CALL_OPS with CC_OPTIMIZE_FOR_SIZE

Peter Collingbourne (1):
arm64: Reset KASAN tag in copy_highpage with HW tags only

Sangmoon Kim (1):
arm64: pass ESR_ELx to die() of cfi_handler

Sudeep Holla (1):
arm64: acpi: Fix possible memory leak of ffh_ctxt

 arch/arm64/Kconfig              |  4 ++--
 arch/arm64/include/asm/memory.h | 11 +++++++++++
 arch/arm64/kernel/acpi.c        |  8 ++++----
 arch/arm64/kernel/cpufeature.c  |  2 +-
 arch/arm64/kernel/fpsimd.c      |  3 ---
 arch/arm64/kernel/kaslr.c       |  2 +-
 arch/arm64/kernel/traps.c       |  2 +-
 arch/arm64/mm/copypage.c        |  3 ++-
 8 files changed, 22 insertions(+), 13 deletions(-)

Catalin