On Tue, May 14, 2013 at 03:13:42PM +0100, Marc Zyngier wrote:
> Let userspace play with the guest registers.
>
> Reviewed-by: Christopher Covington <cov@xxxxxxxxxxxxxx>
> Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
> --- /dev/null
> +++ b/arch/arm64/kvm/guest.c
...
> +static int get_core_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
> +{
> + __u32 __user *uaddr = (__u32 __user *)(unsigned long)reg->addr;
> + struct kvm_regs *regs = vcpu_gp_regs(vcpu);
> + int nr_regs = sizeof(*regs) / sizeof(__u32);
Was there any conclusion on using __u32 rather than __u64 here? At least
you should add a comment since it's slightly confusing.
--
Catalin
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