Re: [Qemu-devel] [PATCH 0/9] tests: apci: consolidate and cleanup ACPI test code

[Igor Mammedov <imammedo@redhat.com>]

On Wed, 19 Dec 2018 11:38:36 -0500
"Michael S. Tsirkin" <mst@redhat.com> wrote:

> On Mon, Dec 10, 2018 at 07:10:06PM +0100, Igor Mammedov wrote:
> > While working on adding tests for virt/arm board (uefi/XSDT/64-bit table pointers),
> > I found it's rather difficult to deal with mixed ACPI testing code that we've
> > collected so far. So instead of just adding a pile of XSDT hacks on top, here
> > goes small refactoring series:
> >    * that removes dead code
> >    * replaces reading tables with a fetch per table everywhere instead of
> >      mix of field by field and whole table
> >    * consolidates the way tables are read (reduces code duplication)
> >    * test no longer depends on ACPI structures from QEMU (i.e. doesn't affected
> >      by mistakes there) 
> >    * fixiex FACS not beint compared against reference tables
> > Overall test is reduced on ~170LOC and hopefully it makes easier to add more
> > stuff on top.  
> 
> So this was posted outside the merge window - do you still want
> it merged? If yes pls repost.
no problem I'll wait for a couple of days for more comments on patches itself
and repost.

> Another idea I had for a while is to compare against expected
> files before iasl. Only disassemble on comparison failure.
I'll add that to my TODO list (it seems easy enough to implement quickly),
but so far starting VM is the largest time consumer and
with UEFI firmware it becomes even worse.

> 
> This will
> - speed the good path up
> - allow testing on systems without iasl (though debugging will be
>   harder)
> 
> > PS:
> > Series depends on '[PATCH v3 0/8] hw: acpi: RSDP fixes and refactoring'
> > to avoid nontrivial conflicts
> > 
> > PS2:
> > arm/virt test patches fill follow up a separate series on top of this one
> > for not to mix things up
> > 
> > 
> > CC: "Michael S. Tsirkin" <mst@redhat.com>
> > CC: Thomas Huth <thuth@redhat.com>
> > CC: Laurent Vivier <lvivier@redhat.com>
> > CC: Samuel Ortiz <sameo@linux.intel.com>
> > 
> > 
> > Igor Mammedov (9):
> >   tests: acpi: remove not used ACPI_READ_GENERIC_ADDRESS macro
> >   tests: acpi: use AcpiSdtTable::aml in consistent way
> >   tests: acpi: make sure FADT is fetched only once
> >   tests: acpi: simplify rsdt handling
> >   tests: acpi: reuse fetch_table() for fetching FACS and DSDT
> >   tests: acpi: reuse fetch_table() in vmgenid-test
> >   tests: smbios: fetch whole table in one step instead of reading it
> >     step by step
> >   tests: acpi: squash sanitize_fadt_ptrs() into test_acpi_fadt_table()
> >   tests: acpi: use AcpiSdtTable::aml instead of
> >     AcpiSdtTable::header::signature
> > 
> >  tests/acpi-utils.h       |  51 ++--------
> >  tests/acpi-utils.c       |  33 ++++--
> >  tests/bios-tables-test.c | 257 ++++++++++++-----------------------------------
> >  tests/vmgenid-test.c     |  63 ++++--------
> >  4 files changed, 116 insertions(+), 288 deletions(-)
> > 
> > -- 
> > 2.7.4