• K
    xen: Mark all initial reserved pages for the balloon as INVALID_P2M_ENTRY. · 6eaa412f
    Konrad Rzeszutek Wilk 提交于
    With this patch, we diligently set regions that will be used by the
    balloon driver to be INVALID_P2M_ENTRY and under the ownership
    of the balloon driver. We are OK using the __set_phys_to_machine
    as we do not expect to be allocating any P2M middle or entries pages.
    The set_phys_to_machine has the side-effect of potentially allocating
    new pages and we do not want that at this stage.
    
    We can do this because xen_build_mfn_list_list will have already
    allocated all such pages up to xen_max_p2m_pfn.
    
    We also move the check for auto translated physmap down the
    stack so it is present in __set_phys_to_machine.
    
    [v2: Rebased with mmu->p2m code split]
    Reviewed-by: NIan Campbell <ian.campbell@citrix.com>
    Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
    6eaa412f
mmu.c 59.2 KB