On 22.01.2020 02:59, Bobby Eshleman wrote:
> --- /dev/null
> +++ b/xen/arch/riscv/sysctl.c
> @@ -0,0 +1,31 @@
> +/******************************************************************************
> + * Arch-specific sysctl.c
> + *
> + * System management operations. For use by node control stack.
> + *
> + * Copyright (c) 2012, Citrix Systems
> + */
> +
> +#include <xen/types.h>
> +#include <xen/lib.h>
> +#include <xen/errno.h>
> +#include <xen/hypercall.h>
> +#include <public/sysctl.h>
> +
> +void arch_do_physinfo(struct xen_sysctl_physinfo *pi) { }
> +
> +long arch_do_sysctl(struct xen_sysctl *sysctl,
> + XEN_GUEST_HANDLE_PARAM(xen_sysctl_t) u_sysctl)
> +{
> + return -ENOSYS;
At the example of this (there may be more in this series) - -EOPNOTSUPP
please. Only top level hypercall handlers ought to produce -ENOSYS, for
major hypercall numbers with no handler.
Jan
