shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-07 19:30:30 +09:00
Code Issues Packages Projects Releases Wiki Activity

UPSTREAM: arm64: Move .hyp.rodata outside of the _sdata.._edata range

Browse Source 
The HYP rodata section is currently lumped together with the BSS,
which isn't exactly what is expected (it gets registered with
kmemleak, for example).

Move it away so that it is actually marked RO. As an added
benefit, it isn't registered with kmemleak anymore.

Fixes: 380e18ade4 ("KVM: arm64: Introduce a BSS section for use at Hyp")
Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org #5.13
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20210802123830.2195174-2-maz@kernel.org
(cherry picked from commit eb48d154cd)
Signed-off-by: Will Deacon <willdeacon@google.com>
Bug: 198418208
Change-Id: I420244acc4c163fdc3173ae0e4965eb13b399c0d
This commit is contained in:
Marc Zyngier
2021-08-02 13:38:29 +01:00
committed by Will Deacon
parent 72c68f9380
commit e0dde8a26a
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm64/kernel/vmlinux.lds.S
View File

@@ -181,6 +181,8 @@ SECTIONS
/* everything from this point to __init_begin will be marked RO NX */
RO_DATA(PAGE_SIZE)
HYPERVISOR_DATA_SECTIONS
idmap_pg_dir = .;
. += IDMAP_DIR_SIZE;
idmap_pg_end = .;
@@ -260,8 +262,6 @@ SECTIONS
_sdata = .;
RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_ALIGN)
HYPERVISOR_DATA_SECTIONS
/*
* Data written with the MMU off but read with the MMU on requires
* cache lines to be invalidated, discarding up to a Cache Writeback