Re: [RFC PATCH 3/3] KVM: selftests: Add vgic initialization for dirty log perf test for ARM

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On Tue, Jan 11, 2022 at 1:55 AM Andrew Jones <drjones@xxxxxxxxxx> wrote:
>
> On Mon, Jan 10, 2022 at 09:04:41PM +0000, Jing Zhang wrote:
> > For ARM64, if no vgic is setup before the dirty log perf test, the
> > userspace irqchip would be used, which would affect the dirty log perf
> > test result.
> >
> > Signed-off-by: Jing Zhang <jingzhangos@xxxxxxxxxx>
> > ---
> >  tools/testing/selftests/kvm/dirty_log_perf_test.c | 10 ++++++++++
> >  1 file changed, 10 insertions(+)
> >
> > diff --git a/tools/testing/selftests/kvm/dirty_log_perf_test.c b/tools/testing/selftests/kvm/dirty_log_perf_test.c
> > index 1954b964d1cf..b501338d9430 100644
> > --- a/tools/testing/selftests/kvm/dirty_log_perf_test.c
> > +++ b/tools/testing/selftests/kvm/dirty_log_perf_test.c
> > @@ -18,6 +18,12 @@
> >  #include "test_util.h"
> >  #include "perf_test_util.h"
> >  #include "guest_modes.h"
> > +#ifdef __aarch64__
> > +#include "aarch64/vgic.h"
> > +
> > +#define GICD_BASE_GPA                        0x8000000ULL
> > +#define GICR_BASE_GPA                        0x80A0000ULL
> > +#endif
> >
> >  /* How many host loops to run by default (one KVM_GET_DIRTY_LOG for each loop)*/
> >  #define TEST_HOST_LOOP_N             2UL
> > @@ -200,6 +206,10 @@ static void run_test(enum vm_guest_mode mode, void *arg)
> >               vm_enable_cap(vm, &cap);
> >       }
> >
> > +#ifdef __aarch64__
> > +     vgic_v3_setup(vm, nr_vcpus, 64, GICD_BASE_GPA, GICR_BASE_GPA);
>                                     ^^ extra parameter
The patch is based on kvm/queue, which has a patch adding an extra
parameter nr_irqs.

>
> Thanks,
> drew
>
> > +#endif
> > +
> >       /* Start the iterations */
> >       iteration = 0;
> >       host_quit = false;
> > --
> > 2.34.1.575.g55b058a8bb-goog
> >
> > _______________________________________________
> > kvmarm mailing list
> > kvmarm@xxxxxxxxxxxxxxxxxxxxx
> > https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
> >
>

Thanks,
Jing



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