Re: [Qemu-devel] acpi-test: Warning! DSDT mismatch

["Michael S. Tsirkin" <mst@redhat.com>]

On Tue, Aug 08, 2017 at 08:38:18PM +0200, Thomas Huth wrote:
> On 08.08.2017 17:35, Michael S. Tsirkin wrote:
> > On Tue, Aug 08, 2017 at 04:48:26PM +0200, Thomas Huth wrote:
> >> On 05.08.2017 22:27, Aleksandr Bezzubikov wrote:
> >>> Unmask previously masked SHPC feature in _OSC method.
> >>>
> >>> Signed-off-by: Aleksandr Bezzubikov <zuban32s@gmail.com>
> >>> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
> >>> ---
> >>>  hw/i386/acpi-build.c | 4 ++--
> >>>  1 file changed, 2 insertions(+), 2 deletions(-)
> >>>
> >>> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> >>> index b9c245c..98dd424 100644
> >>> --- a/hw/i386/acpi-build.c
> >>> +++ b/hw/i386/acpi-build.c
> >>> @@ -1862,9 +1862,9 @@ static Aml *build_q35_osc_method(void)
> >>>  
> >>>      /*
> >>>       * Always allow native PME, AER (no dependencies)
> >>> -     * Never allow SHPC (no SHPC controller in this system)
> >>> +     * Allow SHPC (PCI bridges can have SHPC controller)
> >>>       */
> >>> -    aml_append(if_ctx, aml_and(a_ctrl, aml_int(0x1D), a_ctrl));
> >>> +    aml_append(if_ctx, aml_and(a_ctrl, aml_int(0x1F), a_ctrl));
> >>>  
> >>>      if_ctx2 = aml_if(aml_lnot(aml_equal(aml_arg(1), aml_int(1))));
> >>>      /* Unknown revision */
> >>>
> >>
> >> Since this patch has been merged, I now get a bunch of ugly warnings
> >> during "make check":
> >>
> >> acpi-test: Warning! DSDT mismatch. Actual [asl:/tmp/asl-T2ST4Y.dsl,
> >> aml:/tmp/aml-HVUT4Y], Expected [asl:/tmp/asl-00VT4Y.dsl,
> >> aml:tests/acpi-test-data/q35/DSDT].
> >> acpi-test: Warning! DSDT mismatch. Actual [asl:/tmp/asl-3BKN4Y.dsl,
> >> aml:/tmp/aml-CDKN4Y], Expected [asl:/tmp/asl-2CZM4Y.dsl,
> >> aml:tests/acpi-test-data/q35/DSDT.bridge].
> >> acpi-test: Warning! DSDT mismatch. Actual [asl:/tmp/asl-ZVPA4Y.dsl,
> >> aml:/tmp/aml-A3PA4Y], Expected [asl:/tmp/asl-F0QA4Y.dsl,
> >> aml:tests/acpi-test-data/q35/DSDT.ipmibt].
> >> acpi-test: Warning! DSDT mismatch. Actual [asl:/tmp/asl-TX7P4Y.dsl,
> >> aml:/tmp/aml-S97P4Y], Expected [asl:/tmp/asl-AIJP4Y.dsl,
> >> aml:tests/acpi-test-data/q35/DSDT.cphp].
> >> acpi-test: Warning! DSDT mismatch. Actual [asl:/tmp/asl-6J0C4Y.dsl,
> >> aml:/tmp/aml-DCZC4Y], Expected [asl:/tmp/asl-9I1C4Y.dsl,
> >> aml:tests/acpi-test-data/q35/DSDT.memhp].
> >>
> >> Did you maybe forget to update the ACPI test table according to the
> >> changes? (and why was this merged during hard-freeze at all? The
> >> ChangeLog text does not sound like a bug fix?)
> >>
> >>  Thomas
> > 
> > My bad will fix ASAP.
> 
> Thanks! ... while you're at it, maybe it would be better to turn the
> warnings into an g_assert() or something similar, too, so that they are
> fatal? Otherwise these errors apparently can sneak in without anybody
> noticing it...
> 
>  Thomas
> 

Nope, sorry.  They are warnings intentionally since getting expected
files out of sync or even failing to disassemble the actual ones
is not a necessarily an indication of a bug.

-- 
MST