[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [PATCH v4 3/4] x86_64/mm: map and unmap page tables in share_hotadd_m2p_table
From: Wei Liu <wei.liu2@xxxxxxxxxx> Fetch lYe by mapping and unmapping lXe instead of using the direct map, which is now done via the lYe_from_lXe() helpers. Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx> Signed-off-by: Hongyan Xia <hongyxia@xxxxxxxxxx> Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx> --- Changed in v2: - the introduction of the macros is now lifted to a previous patch. --- xen/arch/x86/x86_64/mm.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/xen/arch/x86/x86_64/mm.c b/xen/arch/x86/x86_64/mm.c index 41755ded26..cfaeae84e9 100644 --- a/xen/arch/x86/x86_64/mm.c +++ b/xen/arch/x86/x86_64/mm.c @@ -166,14 +166,14 @@ static int share_hotadd_m2p_table(struct mem_hotadd_info *info) v += n << PAGE_SHIFT ) { n = L2_PAGETABLE_ENTRIES * L1_PAGETABLE_ENTRIES; - l3e = l4e_to_l3e(idle_pg_table[l4_table_offset(v)])[ - l3_table_offset(v)]; + l3e = l3e_from_l4e(idle_pg_table[l4_table_offset(v)], + l3_table_offset(v)); if ( !(l3e_get_flags(l3e) & _PAGE_PRESENT) ) continue; if ( !(l3e_get_flags(l3e) & _PAGE_PSE) ) { n = L1_PAGETABLE_ENTRIES; - l2e = l3e_to_l2e(l3e)[l2_table_offset(v)]; + l2e = l2e_from_l3e(l3e, l2_table_offset(v)); if ( !(l2e_get_flags(l2e) & _PAGE_PRESENT) ) continue; m2p_start_mfn = l2e_get_mfn(l2e); @@ -194,11 +194,11 @@ static int share_hotadd_m2p_table(struct mem_hotadd_info *info) v != RDWR_COMPAT_MPT_VIRT_END; v += 1 << L2_PAGETABLE_SHIFT ) { - l3e = l4e_to_l3e(idle_pg_table[l4_table_offset(v)])[ - l3_table_offset(v)]; + l3e = l3e_from_l4e(idle_pg_table[l4_table_offset(v)], + l3_table_offset(v)); if ( !(l3e_get_flags(l3e) & _PAGE_PRESENT) ) continue; - l2e = l3e_to_l2e(l3e)[l2_table_offset(v)]; + l2e = l2e_from_l3e(l3e, l2_table_offset(v)); if ( !(l2e_get_flags(l2e) & _PAGE_PRESENT) ) continue; m2p_start_mfn = l2e_get_mfn(l2e); -- 2.24.1.AMZN
|
![]() |
Lists.xenproject.org is hosted with RackSpace, monitoring our |