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Sat, 07 Oct 2023 17:05:07 +0100 Date: Sat, 07 Oct 2023 17:05:05 +0100 Message-ID: <877cnymn9q.wl-maz@kernel.org> From: Marc Zyngier To: Zenghui Yu Cc: , , , , , , Subject: Re: [PATCH 1/2] KVM: arm64: selftest: Add the missing .guest_prepare() In-Reply-To: <20231007124043.626-1-yuzenghui@huawei.com> References: <20231007124043.626-1-yuzenghui@huawei.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/28.2 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: yuzenghui@huawei.com, kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, oliver.upton@linux.dev, james.morse@arm.com, suzuki.poulose@arm.com, ricarkol@google.com, wanghaibin.wang@huawei.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231007_090514_165222_C4868FA1 X-CRM114-Status: GOOD ( 13.01 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Sat, 07 Oct 2023 13:40:42 +0100, Zenghui Yu wrote: > > Running page_fault_test on a Cortex A72 fails with > > Test: ro_memslot_no_syndrome_guest_cas > Testing guest mode: PA-bits:40, VA-bits:48, 4K pages > Testing memory backing src type: anonymous > ==== Test Assertion Failure ==== > aarch64/page_fault_test.c:117: guest_check_lse() > pid=1944087 tid=1944087 errno=4 - Interrupted system call > 1 0x00000000004028b3: vcpu_run_loop at page_fault_test.c:682 > 2 0x0000000000402d93: run_test at page_fault_test.c:731 > 3 0x0000000000403957: for_each_guest_mode at guest_modes.c:100 > 4 0x00000000004019f3: for_each_test_and_guest_mode at page_fault_test.c:1108 > 5 (inlined by) main at page_fault_test.c:1134 > 6 0x0000ffff868e503b: ?? ??:0 > 7 0x0000ffff868e5113: ?? ??:0 > 8 0x0000000000401aaf: _start at ??:? > guest_check_lse() > > because we don't have a guest_prepare stage to check the presence of > FEAT_LSE and skip the related guest_cas testing, and we end-up failing in > GUEST_ASSERT(guest_check_lse()). > > Add the missing .guest_prepare() where it's indeed required. > > Signed-off-by: Zenghui Yu Acked-by: Marc Zyngier M. -- Without deviation from the norm, progress is not possible. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel