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| author | Marc Zyngier <marc.zyngier@arm.com> | 2018-02-15 12:49:20 +0100 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2018-03-19 14:06:55 +0100 |
| commit | 4b472ffd1513407ee3607b8e638e8695e9b487ca (patch) | |
| tree | 08a8213a739f75191ec806452d18a7e6c712c8de /virt | |
| parent | arm64: KVM: Allow mapping of vectors outside of the RAM region (diff) | |
| download | linux-4b472ffd1513407ee3607b8e638e8695e9b487ca.tar.xz linux-4b472ffd1513407ee3607b8e638e8695e9b487ca.zip | |
arm64: Enable ARM64_HARDEN_EL2_VECTORS on Cortex-A57 and A72
Cortex-A57 and A72 are vulnerable to the so-called "variant 3a" of
Meltdown, where an attacker can speculatively obtain the value
of a privileged system register.
By enabling ARM64_HARDEN_EL2_VECTORS on these CPUs, obtaining
VBAR_EL2 is not disclosing the hypervisor mappings anymore.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'virt')
0 files changed, 0 insertions, 0 deletions