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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2018-03-02 08:16:30 +0000 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2018-03-14 18:29:14 +0000 |
| commit | 76600428c3677659e3c3633bb4f2ea302220a275 (patch) | |
| tree | df639ed37502b799ddefc22f2c9993d420d3bfca /virt/kvm/arm/vgic/vgic-v2.c | |
| parent | 413aa807ae39fed7e387c175d2d0ae9fcf6c0c9d (diff) | |
| download | blackbird-op-linux-76600428c3677659e3c3633bb4f2ea302220a275.tar.gz blackbird-op-linux-76600428c3677659e3c3633bb4f2ea302220a275.zip | |
KVM: arm/arm64: Reduce verbosity of KVM init log
On my GICv3 system, the following is printed to the kernel log at boot:
kvm [1]: 8-bit VMID
kvm [1]: IDMAP page: d20e35000
kvm [1]: HYP VA range: 800000000000:ffffffffffff
kvm [1]: vgic-v2@2c020000
kvm [1]: GIC system register CPU interface enabled
kvm [1]: vgic interrupt IRQ1
kvm [1]: virtual timer IRQ4
kvm [1]: Hyp mode initialized successfully
The KVM IDMAP is a mapping of a statically allocated kernel structure,
and so printing its physical address leaks the physical placement of
the kernel when physical KASLR in effect. So change the kvm_info() to
kvm_debug() to remove it from the log output.
While at it, trim the output a bit more: IRQ numbers can be found in
/proc/interrupts, and the HYP VA and vgic-v2 lines are not highly
informational either.
Cc: <stable@vger.kernel.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Christoffer Dall <cdall@kernel.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'virt/kvm/arm/vgic/vgic-v2.c')
| -rw-r--r-- | virt/kvm/arm/vgic/vgic-v2.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/virt/kvm/arm/vgic/vgic-v2.c b/virt/kvm/arm/vgic/vgic-v2.c index c32d7b93ffd1..e9d840a75e7b 100644 --- a/virt/kvm/arm/vgic/vgic-v2.c +++ b/virt/kvm/arm/vgic/vgic-v2.c @@ -410,7 +410,7 @@ int vgic_v2_probe(const struct gic_kvm_info *info) kvm_vgic_global_state.type = VGIC_V2; kvm_vgic_global_state.max_gic_vcpus = VGIC_V2_MAX_CPUS; - kvm_info("vgic-v2@%llx\n", info->vctrl.start); + kvm_debug("vgic-v2@%llx\n", info->vctrl.start); return 0; out: |
