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authorMarc Zyngier <marc.zyngier@arm.com>2017-06-09 13:49:46 +0200
committerMarc Zyngier <marc.zyngier@arm.com>2017-06-15 10:45:03 +0200
commite23f62f76acea232d4def5d4eb21709a2b575f14 (patch)
tree76bca23a065ddc730b24602a09c6ec69da6e8918 /Documentation/admin-guide
parentKVM: arm64: vgic-v3: Enable trapping of Group-0 system registers (diff)
downloadlinux-e23f62f76acea232d4def5d4eb21709a2b575f14.tar.xz
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KVM: arm64: Enable GICv3 Group-0 sysreg trapping via command-line
Now that we're able to safely handle Group-0 sysreg access, let's give the user the opportunity to enable it by passing a specific command-line option (vgic_v3.group0_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> Signed-off-by: Christoffer Dall <cdall@linaro.org>
Diffstat (limited to 'Documentation/admin-guide')
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 42fe395be6c8..88bdc421351f 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1829,6 +1829,10 @@
for all guests.
Default is 1 (enabled) if in 64-bit or 32-bit PAE mode.
+ kvm-arm.vgic_v3_group0_trap=
+ [KVM,ARM] Trap guest accesses to GICv3 group-0
+ system registers
+
kvm-arm.vgic_v3_group1_trap=
[KVM,ARM] Trap guest accesses to GICv3 group-1
system registers