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| author | Quentin Perret <qperret@google.com> | 2021-03-19 13:01:15 +0300 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2021-03-19 15:01:20 +0300 |
| commit | 380e18ade4a51334e8806160e6f0fdfaca0b4428 (patch) | |
| tree | fe82cfb30031b7030df54e9fc6360d14fcb32587 /tools/perf/scripts/python/stackcollapse.py | |
| parent | 7aef0cbcdcd0995efde9957b3eda9f31a219613d (diff) | |
| download | linux-380e18ade4a51334e8806160e6f0fdfaca0b4428.tar.xz | |
KVM: arm64: Introduce a BSS section for use at Hyp
Currently, the hyp code cannot make full use of a bss, as the kernel
section is mapped read-only.
While this mapping could simply be changed to read-write, it would
intermingle even more the hyp and kernel state than they currently are.
Instead, introduce a __hyp_bss section, that uses reserved pages, and
create the appropriate RW hyp mappings during KVM init.
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210319100146.1149909-8-qperret@google.com
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
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