[GIT PULL] arm64 fixes for 5.15-rc1

From: Catalin Marinas
Date: Fri Sep 10 2021 - 13:34:47 EST

Hi Linus,

Please pull the arm64 fixes below. Thanks.

The following changes since commit 65266a7c6abfa1ad915a362c41bf38576607f1f9:

Merge remote-tracking branch 'tip/sched/arm64' into for-next/core (2021-08-31 09:10:00 +0100)

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 85f58eb1889826b9745737718723a80b639e0fbd:

arm64: kdump: Skip kmemleak scan reserved memory for kdump (2021-09-10 11:58:59 +0100)

arm64 fixes:

- Limit the linear region to 51-bit when KVM is running in nVHE mode
otherwise, depending on the placement of the ID map, kernel-VA to
hyp-VA translations may produce addresses that either conflict with
other HYP mappings or generate addresses outside of the 52-bit
addressable range.

- Instruct kmemleak not to scan the memory reserved for kdump as this
range is removed from the kernel linear map and therefore not

Ard Biesheuvel (1):
arm64: mm: limit linear region to 51 bits for KVM in nVHE mode

Chen Wandun (1):
arm64: kdump: Skip kmemleak scan reserved memory for kdump

arch/arm64/mm/init.c | 22 +++++++++++++++++++++-
1 file changed, 21 insertions(+), 1 deletion(-)