[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH] gnttab/ARM: properly implement gnttab_create_status_page()
Prevent the "BUG_ON(page_get_owner(pg) != d)" in gnttab_unpopulate_status_frames() from triggering. Reported-by: 王磊 <lei19.wang@xxxxxxxxxxx> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx> --- It looks to me as if this was the only piece missing to make v2 grant tables work on ARM, but this was build tested only anyway. --- a/xen/include/asm-arm/grant_table.h +++ b/xen/include/asm-arm/grant_table.h @@ -21,7 +21,6 @@ int create_grant_host_mapping(unsigned l int replace_grant_host_mapping(unsigned long gpaddr, mfn_t mfn, unsigned long new_gpaddr, unsigned int flags); void gnttab_mark_dirty(struct domain *d, mfn_t mfn); -#define gnttab_create_status_page(d, t, i) do {} while (0) #define gnttab_release_host_mappings(domain) 1 static inline int replace_grant_supported(void) { @@ -84,6 +83,12 @@ static inline unsigned int gnttab_dom0_m virt_to_page((char *)(t)->shared_raw[i]), d, SHARE_rw); \ } while ( 0 ) +#define gnttab_create_status_page(d, t, i) \ + do { \ + share_xen_page_with_guest( \ + virt_to_page((char *)(t)->status[i]), d, SHARE_rw); \ + } while ( 0 ) + #define gnttab_shared_gmfn(d, t, i) \ gfn_x(((i) >= nr_grant_frames(t)) ? INVALID_GFN : (t)->arch.shared_gfn[i]) _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/xen-devel
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