KVM: arm/arm64: Reduce verbosity of KVM init log
commit
76600428c3677659e3c3633bb4f2ea302220a275 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>