linux-kernel - [RFC kvm-unit-tests 13/27] arm: selftest: realm: skip pabt test when running in a realm

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Message-ID: <20230127114108.10025-14-joey.gouly@arm.com>
Date:   Fri, 27 Jan 2023 11:40:54 +0000
From:   Joey Gouly <joey.gouly@....com>
To:     Andrew Jones <andrew.jones@...ux.dev>, <kvmarm@...ts.linux.dev>,
        <kvm@...r.kernel.org>
CC:     <joey.gouly@....com>, Alexandru Elisei <alexandru.elisei@....com>,
        Christoffer Dall <christoffer.dall@....com>,
        Fuad Tabba <tabba@...gle.com>,
        Jean-Philippe Brucker <jean-philippe@...aro.org>,
        Joey Gouly <Joey.Gouly@....com>, Marc Zyngier <maz@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Oliver Upton <oliver.upton@...ux.dev>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Quentin Perret <qperret@...gle.com>,
        Steven Price <steven.price@....com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        "Thomas Huth" <thuth@...hat.com>, Will Deacon <will@...nel.org>,
        Zenghui Yu <yuzenghui@...wei.com>,
        <linux-coco@...ts.linux.dev>, <kvmarm@...ts.cs.columbia.edu>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: [RFC kvm-unit-tests 13/27] arm: selftest: realm: skip pabt test when running in a realm

From: Alexandru Elisei <alexandru.elisei@....com>

The realm manager treats instruction aborts as fatal errors, skip this
test.

Signed-off-by: Alexandru Elisei <alexandru.elisei@....com>
Signed-off-by: Joey Gouly <joey.gouly@....com>
---
 arm/selftest.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arm/selftest.c b/arm/selftest.c
index 6f825add..174f2ebc 100644
--- a/arm/selftest.c
+++ b/arm/selftest.c
@@ -18,6 +18,7 @@
 #include <asm/smp.h>
 #include <asm/mmu.h>
 #include <asm/barrier.h>
+#include <asm/rsi.h>
 
 static cpumask_t ready, valid;
 
@@ -392,11 +393,17 @@ static void check_vectors(void *arg __unused)
 					  user_psci_system_off);
 #endif
 	} else {
+		if (is_realm()) {
+			report_skip("pabt test not supported in a realm");
+			goto out;
+		}
+
 		if (!check_pabt_init())
 			report_skip("Couldn't guess an invalid physical address");
 		else
 			report(check_pabt(), "pabt");
 	}
+out:
 	exit(report_summary());
 }
 
-- 
2.17.1