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| author | Marc Zyngier <maz@kernel.org> | 2020-09-18 13:25:40 +0200 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2020-09-29 17:08:16 +0200 |
| commit | 29e8910a566aad3ee72f729e45842858d51ced8d (patch) | |
| tree | 24f724d8fc710a804931c0adcbe1418794491e56 /arch/arm64/kvm/arm.c | |
| parent | arm64: Rewrite Spectre-v4 mitigation code (diff) | |
| download | linux-29e8910a566aad3ee72f729e45842858d51ced8d.tar.xz linux-29e8910a566aad3ee72f729e45842858d51ced8d.zip | |
KVM: arm64: Simplify handling of ARCH_WORKAROUND_2
Owing to the fact that the host kernel is always mitigated, we can
drastically simplify the WA2 handling by keeping the mitigation
state ON when entering the guest. This means the guest is either
unaffected or not mitigated.
This results in a nice simplification of the mitigation space,
and the removal of a lot of code that was never really used anyway.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/kvm/arm.c')
| -rw-r--r-- | arch/arm64/kvm/arm.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index 46dc3d75cf13..b1bd2f4cd3e0 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -1549,10 +1549,6 @@ static int init_hyp_mode(void) } } - err = hyp_map_aux_data(); - if (err) - kvm_err("Cannot map host auxiliary data: %d\n", err); - return 0; out_err: |