Re: [Xen-devel] [PATCH v2 6/9] xen: move VCPUOP_register_vcpu_info to common code

[Julien Grall <julien.grall@xxxxxxxxxx>]

On 03/26/2013 02:47 PM, Stefano Stabellini wrote:

> +int map_vcpu_info(struct vcpu *v, unsigned long gfn, unsigned offset)
> +{
> +    struct domain *d = v->domain;
> +    void *mapping;
> +    vcpu_info_t *new_info;
> +    struct page_info *page;
> +    int i;
> +
> +    if ( offset > (PAGE_SIZE - sizeof(vcpu_info_t)) )
> +        return -EINVAL;
> +
> +    if ( v->vcpu_info_mfn != INVALID_MFN )
> +        return -EINVAL;
> +
> +    /* Run this command on yourself or on other offline VCPUS. */
> +    if ( (v != current) && !test_bit(_VPF_down, &v->pause_flags) )
> +        return -EINVAL;
> +
> +    page = get_page_from_gfn(d, gfn, NULL, P2M_ALLOC);

This patch doesn't compile on x86. get_page_from_gfn is missing.

Adding #include <asm/p2m.h> on top of the file (common/domain.c)
resolves the compilation error.

Julien


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