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KVM: arm64: Enable GICv3 common sysreg trapping via command-line

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Now that we're able to safely handle common sysreg access, let's
give the user the opportunity to enable it by passing a specific
command-line option (vgic_v3.common_trap).

Tested-by: Alexander Graf <agraf@suse.de>
Acked-by: David Daney <david.daney@cavium.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Christoffer Dall <cdall@linaro.org>
Signed-off-by: Christoffer Dall <cdall@linaro.org>
This commit is contained in:
Marc Zyngier
2017-06-09 12:49:53 +01:00
parent 6293d6514d
commit ff89511ef2
3 changed files with 15 additions and 1 deletions
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4
Documentation/admin-guide/kernel-parameters.txt
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@@ -1837,6 +1837,10 @@
[KVM,ARM] Trap guest accesses to GICv3 group-1
system registers
kvm-arm.vgic_v3_common_trap=
[KVM,ARM] Trap guest accesses to GICv3 common
system registers
kvm-intel.ept= [KVM,Intel] Disable extended page tables
(virtualized MMU) support on capable Intel chips.
Default is 1 (enabled)