diff options
| author | Marc Zyngier <marc.zyngier@arm.com> | 2017-06-09 13:49:46 +0200 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2017-06-15 10:45:03 +0200 |
| commit | e23f62f76acea232d4def5d4eb21709a2b575f14 (patch) | |
| tree | 76bca23a065ddc730b24602a09c6ec69da6e8918 /virt | |
| parent | KVM: arm64: vgic-v3: Enable trapping of Group-0 system registers (diff) | |
| download | linux-e23f62f76acea232d4def5d4eb21709a2b575f14.tar.xz linux-e23f62f76acea232d4def5d4eb21709a2b575f14.zip | |
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 'virt')
| -rw-r--r-- | virt/kvm/arm/vgic/vgic-v3.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/virt/kvm/arm/vgic/vgic-v3.c b/virt/kvm/arm/vgic/vgic-v3.c index 39046ee5be25..828ca7f9a060 100644 --- a/virt/kvm/arm/vgic/vgic-v3.c +++ b/virt/kvm/arm/vgic/vgic-v3.c @@ -438,6 +438,12 @@ out: DEFINE_STATIC_KEY_FALSE(vgic_v3_cpuif_trap); +static int __init early_group0_trap_cfg(char *buf) +{ + return strtobool(buf, &group0_trap); +} +early_param("kvm-arm.vgic_v3_group0_trap", early_group0_trap_cfg); + static int __init early_group1_trap_cfg(char *buf) { return strtobool(buf, &group1_trap); |