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

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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

Thanks,
drew

> +#endif
> +
>  	/* Start the iterations */
>  	iteration = 0;
>  	host_quit = false;
> -- 
> 2.34.1.575.g55b058a8bb-goog
> 
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> https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
> 

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