[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: IOCTL_PRIVCMD_MMAPBATCH on Xen 4.13.0
I've been looking a bit deeper in the Xen kernel. The mapping is failed in ./arch/x86/mm/p2m.c:p2m_get_page_from_gfn(), /* Error path: not a suitable GFN at all */ if ( !p2m_is_ram(*t) && !p2m_is_paging(*t) && !p2m_is_pod(*t) ) { gdprintk(XENLOG_ERR, "p2m_get_page_from_gfn2: %d is_ram %ld is_paging %ld is_pod %ld\n", *t, p2m_is_ram(*t), p2m_is_paging(*t), p2m_is_pod(*t) ); return NULL; } *t is 4, which translates to p2m_mmio_dm it looks like p2m_get_page_from_gfn() is not ready to handle this case for dom0. -- Manuel Bouyer <bouyer@xxxxxxxxxxxxxxx> NetBSD: 26 ans d'experience feront toujours la difference --
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