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Re: [kvm-unit-tests PATCH v2 06/16] arm/arm64: ITS: Test BASER


From: Andrew Jones
Subject: Re: [kvm-unit-tests PATCH v2 06/16] arm/arm64: ITS: Test BASER
Date: Mon, 13 Jan 2020 18:21:10 +0100

On Fri, Jan 10, 2020 at 03:54:02PM +0100, Eric Auger wrote:
> Add helper routines to parse and set up BASER registers.
> Add a new test dedicated to BASER<n> accesses.
> 
> Signed-off-by: Eric Auger <address@hidden>
> 
> ---
> 
> v2 -> v3:
> - remove everything related to memory attributes
> - s/dev_baser/coll_baser/ in report_info
> - add extra line
> - removed index filed in its_baser
> ---
>  arm/gic.c                | 21 ++++++++++-
>  arm/unittests.cfg        |  6 +++
>  lib/arm/asm/gic-v3-its.h | 14 +++++++
>  lib/arm/gic-v3-its.c     | 80 ++++++++++++++++++++++++++++++++++++++++
>  4 files changed, 120 insertions(+), 1 deletion(-)
> 
> diff --git a/arm/gic.c b/arm/gic.c
> index adeb981..3597ac3 100644
> --- a/arm/gic.c
> +++ b/arm/gic.c
> @@ -531,11 +531,26 @@ static void test_its_introspection(void)
>                   typer->collid_bits);
>       report(typer->eventid_bits && typer->deviceid_bits &&
>              typer->collid_bits, "ID spaces");
> -     report(!typer->hw_collections, "collections only in ext memory");
>       report_info("Target address format %s",
>                       typer->pta ? "Redist basse address" : "PE #");
>  }
>  
> +static void test_its_baser(void)
> +{
> +     struct its_baser *dev_baser, *coll_baser;
> +
> +     if (!gicv3_its_base()) {
> +             report_skip("No ITS, skip ...");
> +             return;
> +     }
> +
> +     dev_baser = its_lookup_baser(GITS_BASER_TYPE_DEVICE);
> +     coll_baser = its_lookup_baser(GITS_BASER_TYPE_COLLECTION);
> +     report(dev_baser && coll_baser, "detect device and collection BASER");
> +     report_info("device baser entry_size = 0x%x", dev_baser->esz);
> +     report_info("collection baser entry_size = 0x%x", coll_baser->esz);
> +}
> +
>  int main(int argc, char **argv)
>  {
>       if (!gic_init()) {
> @@ -571,6 +586,10 @@ int main(int argc, char **argv)
>               report_prefix_push(argv[1]);
>               test_its_introspection();
>               report_prefix_pop();
> +     } else if (strcmp(argv[1], "its-baser") == 0) {
> +             report_prefix_push(argv[1]);
> +             test_its_baser();
> +             report_prefix_pop();
>       } else {
>               report_abort("Unknown subtest '%s'", argv[1]);
>       }
> diff --git a/arm/unittests.cfg b/arm/unittests.cfg
> index bd20460..2234a0f 100644
> --- a/arm/unittests.cfg
> +++ b/arm/unittests.cfg
> @@ -128,6 +128,12 @@ smp = $MAX_SMP
>  extra_params = -machine gic-version=3 -append 'its-introspection'
>  groups = its
>  
> +[its-baser]
> +file = gic.flat
> +smp = $MAX_SMP
> +extra_params = -machine gic-version=3 -append 'its-baser'
> +groups = its

Do these tests need to be run separately from the its-introspection tests
for some reason? If not, then I'd combine them.

Thanks,
drew




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