Re: [PATCH v2 4/5] kvm: selftests: aarch64: fix some vgic related comments

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On Wed, Jan 26, 2022 at 07:08:57PM -0800, Ricardo Koller wrote:
> Fix the formatting of some comments and the wording of one of them (in
> gicv3_access_reg).
> 
> Signed-off-by: Ricardo Koller <ricarkol@xxxxxxxxxx>
> Reported-by: Reiji Watanabe <reijiw@xxxxxxxxxx>
> Cc: Andrew Jones <drjones@xxxxxxxxxx>
> Reviewed-by: Andrew Jones <drjones@xxxxxxxxxx>

I didn't give my r-b to this patch before, but you can keep it, because
here's another one

Reviewed-by: Andrew Jones <drjones@xxxxxxxxxx>

> ---
>  tools/testing/selftests/kvm/aarch64/vgic_irq.c   | 12 ++++++++----
>  tools/testing/selftests/kvm/lib/aarch64/gic_v3.c | 10 ++++++----
>  tools/testing/selftests/kvm/lib/aarch64/vgic.c   |  3 ++-
>  3 files changed, 16 insertions(+), 9 deletions(-)
> 
> diff --git a/tools/testing/selftests/kvm/aarch64/vgic_irq.c b/tools/testing/selftests/kvm/aarch64/vgic_irq.c
> index 0106fc464afe..f0230711fbe9 100644
> --- a/tools/testing/selftests/kvm/aarch64/vgic_irq.c
> +++ b/tools/testing/selftests/kvm/aarch64/vgic_irq.c
> @@ -306,7 +306,8 @@ static void guest_restore_active(struct test_args *args,
>  	uint32_t prio, intid, ap1r;
>  	int i;
>  
> -	/* Set the priorities of the first (KVM_NUM_PRIOS - 1) IRQs
> +	/*
> +	 * Set the priorities of the first (KVM_NUM_PRIOS - 1) IRQs
>  	 * in descending order, so intid+1 can preempt intid.
>  	 */
>  	for (i = 0, prio = (num - 1) * 8; i < num; i++, prio -= 8) {
> @@ -315,7 +316,8 @@ static void guest_restore_active(struct test_args *args,
>  		gic_set_priority(intid, prio);
>  	}
>  
> -	/* In a real migration, KVM would restore all GIC state before running
> +	/*
> +	 * In a real migration, KVM would restore all GIC state before running
>  	 * guest code.
>  	 */
>  	for (i = 0; i < num; i++) {
> @@ -503,7 +505,8 @@ static void guest_code(struct test_args *args)
>  		test_injection_failure(args, f);
>  	}
>  
> -	/* Restore the active state of IRQs. This would happen when live
> +	/*
> +	 * Restore the active state of IRQs. This would happen when live
>  	 * migrating IRQs in the middle of being handled.
>  	 */
>  	for_each_supported_activate_fn(args, set_active_fns, f)
> @@ -840,7 +843,8 @@ int main(int argc, char **argv)
>  		}
>  	}
>  
> -	/* If the user just specified nr_irqs and/or gic_version, then run all
> +	/*
> +	 * If the user just specified nr_irqs and/or gic_version, then run all
>  	 * combinations.
>  	 */
>  	if (default_args) {
> diff --git a/tools/testing/selftests/kvm/lib/aarch64/gic_v3.c b/tools/testing/selftests/kvm/lib/aarch64/gic_v3.c
> index e4945fe66620..263bf3ed8fd5 100644
> --- a/tools/testing/selftests/kvm/lib/aarch64/gic_v3.c
> +++ b/tools/testing/selftests/kvm/lib/aarch64/gic_v3.c
> @@ -19,7 +19,7 @@ struct gicv3_data {
>  	unsigned int nr_spis;
>  };
>  
> -#define sgi_base_from_redist(redist_base) 	(redist_base + SZ_64K)
> +#define sgi_base_from_redist(redist_base)	(redist_base + SZ_64K)
>  #define DIST_BIT				(1U << 31)
>  
>  enum gicv3_intid_range {
> @@ -105,7 +105,8 @@ static void gicv3_set_eoi_split(bool split)
>  {
>  	uint32_t val;
>  
> -	/* All other fields are read-only, so no need to read CTLR first. In
> +	/*
> +	 * All other fields are read-only, so no need to read CTLR first. In
>  	 * fact, the kernel does the same.
>  	 */
>  	val = split ? (1U << 1) : 0;
> @@ -160,8 +161,9 @@ static void gicv3_access_reg(uint32_t intid, uint64_t offset,
>  
>  	GUEST_ASSERT(bits_per_field <= reg_bits);
>  	GUEST_ASSERT(!write || *val < (1U << bits_per_field));
> -	/* Some registers like IROUTER are 64 bit long. Those are currently not
> -	 * supported by readl nor writel, so just asserting here until then.
> +	/*
> +	 * This function does not support 64 bit accesses. Just asserting here
> +	 * until we implement readq/writeq.
>  	 */
>  	GUEST_ASSERT(reg_bits == 32);
>  
> diff --git a/tools/testing/selftests/kvm/lib/aarch64/vgic.c b/tools/testing/selftests/kvm/lib/aarch64/vgic.c
> index b3a0fca0d780..79864b941617 100644
> --- a/tools/testing/selftests/kvm/lib/aarch64/vgic.c
> +++ b/tools/testing/selftests/kvm/lib/aarch64/vgic.c
> @@ -150,7 +150,8 @@ static void vgic_poke_irq(int gic_fd, uint32_t intid,
>  		attr += SZ_64K;
>  	}
>  
> -	/* All calls will succeed, even with invalid intid's, as long as the
> +	/*
> +	 * All calls will succeed, even with invalid intid's, as long as the
>  	 * addr part of the attr is within 32 bits (checked above). An invalid
>  	 * intid will just make the read/writes point to above the intended
>  	 * register space (i.e., ICPENDR after ISPENDR).
> -- 
> 2.35.0.rc0.227.g00780c9af4-goog
> 




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