Re: [Qemu-devel] [PATCH] expose paravirt feature list to cpuid

[Paul Brook]

> +#ifdef KVM_CPUID_SIGNATURE
> +    /* Paravirtualization CPUIDs */
> +    memcpy(signature, "KVMKVMKVM\0\0\0", 12);
> +    pv_ent->ebx = signature[0];
> +    pv_ent->ecx = signature[1];
> +    pv_ent->edx = signature[2];

This is broken on big-endian hosts.

I realise this code is currently only enabled for x86 hosts, however there's a 
good chance we'll want to implement something similar for normal qemu. At 
minimum it needs a comment saying that it's potentially broken.

Paul