Re: [Xen-devel] [PATCH v3 2/2] x86/dmar: zap DMAR signature for dom0 once in TBOOT case

2018-08-21 Thread Tian, Kevin
> From: Jan Beulich [mailto:jbeul...@suse.com] > Sent: Tuesday, August 21, 2018 8:32 PM > > >>> On 21.08.18 at 11:11, wrote: > > @@ -490,10 +488,6 @@ int __init > tboot_parse_dmar_table(acpi_table_handler dmar_handler) > > rc = dmar_handler(dmar_table); > > xfree(dmar_table); > > > > -

Re: [Xen-devel] [PATCH v3 2/2] x86/dmar: zap DMAR signature for dom0 once in TBOOT case

2018-08-21 Thread Jan Beulich
>>> On 21.08.18 at 11:11, wrote: > @@ -490,10 +488,6 @@ int __init tboot_parse_dmar_table(acpi_table_handler > dmar_handler) > rc = dmar_handler(dmar_table); > xfree(dmar_table); > > -/* acpi_parse_dmar() zaps APCI DMAR signature in TXT heap table */ > -/* but dom0 will read

[Xen-devel] [PATCH v3 2/2] x86/dmar: zap DMAR signature for dom0 once in TBOOT case

2018-08-21 Thread Zhenzhong Duan
When TBOOT enabled, acpi_parse_dmar() called acpi_dmar_zap() to zap DMAR table, then tboot_parse_dmar_table() called acpi_dmar_zap() to zap it again. This is unnecessory, remove the second call. Some stale comments not right for current code are also removed. No functional change. Signed-off-by: