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| author | James Morse <james.morse@arm.com> | 2016-04-27 17:47:02 +0100 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2016-11-17 09:49:37 +0800 |
| commit | 46b1c4a370fbdef15423ba645772ab7e5486d711 (patch) | |
| tree | 5225cc2ed58dddade8f01034aab77d387c21f21d /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | 09fa0a88d0a37d7b53ec1208a0c949d8ee3e6279 (diff) | |
arm64: kvm: Move lr save/restore from do_el2_call into EL1
Today the 'hvc' calling KVM or the hyp-stub is expected to preserve all
registers. KVM saves/restores the registers it needs on the EL2 stack using
do_el2_call(). The hyp-stub has no stack, later patches need to be able to
be able to clobber the link register.
Move the link register save/restore to the the call sites.
Signed-off-by: James Morse <james.morse@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
(cherry picked from commit 00a44cdaba0900c63a003e0c431f506f49376a90)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions