Message ID | 20230716-arm64-gcs-v1-27-bf567f93bba6@kernel.org (mailing list archive) |
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State | Handled Elsewhere |
Headers | show
Return-Path: <linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org> X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BAC7BEB64DD for <linux-riscv@archiver.kernel.org>; Sun, 16 Jul 2023 22:00:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=5J2YNO4zgc2Spd4dgqNmXTdhrRbw+pz5V9wwn3UIIMM=; b=enVZ0yUXJQabq3 RAsXd9EjKmhnTB/C9jS38fMD08qkpy8e4pUcf7iN0O3msmnKXfses+c2UKo0COdyTy97ikiYbfL9W klNAKRhe6+RHnjE/OcQemMqlN9ORb2v4Lv9GpgoiMimZO1hmEU6ejodtn/jz2pend7Y41yRfAR47w ySjaLaMLlskK2umE0rupmMjQ5v3YgKiujDSVXS1/lYSxK8c54hyqIQ12F6PNDgQxwHTf2NpIuZmGm JAsV1CnseJO2ZgClYqIykfoQZ5M1jdmjlyFojWDfo8wSg79H4WN6jcHrcnaFwuOn9iYOUxYb1mdky PW3pZwVf6bTveXYn4fig==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qL9mT-00Fwbv-2A; Sun, 16 Jul 2023 21:59:54 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qL9iO-00FtSb-1s; Sun, 16 Jul 2023 21:55:47 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 0D0B460EFB; Sun, 16 Jul 2023 21:55:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BB808C43391; Sun, 16 Jul 2023 21:55:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1689544539; bh=6C9vpUKzxaC1YPufnnUpE8qHeuHqYjFB9iVUxK25t6w=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=qRa+YtE7yvYvcODmiwXlBSh4F1vfSwmQsxOYCCQHdyb7+9c2QZaWomxYvuS8kAIhp 714G1h1smywg2+5j2TZEfjSY4jKrv7pSFsPmWoRlS0zeS6ohrJTmnPvVIi14ff21D8 JDffHX6QBQP9aOIkracyewUb01/PrSGXzH4WmI+M4og6H7vnCvlW8GNZs+SChNn2N3 CFO4IYgetGBzac0xoAbaU0lbR8qvrMLJ3zH0bVfQcPnzspiFpfFuWqBx87Ho0dw9Vh P14G/ouU2IXhzfq4tdx9JGoiCtFadeEMcbJpJfckv7oSDxvR+DrHoPw2gwKEtpbUZO WD42Obeggb7Jg== From: Mark Brown <broonie@kernel.org> Date: Sun, 16 Jul 2023 22:51:23 +0100 Subject: [PATCH 27/35] kselftest/arm64: Verify the GCS hwcap MIME-Version: 1.0 Message-Id: <20230716-arm64-gcs-v1-27-bf567f93bba6@kernel.org> References: <20230716-arm64-gcs-v1-0-bf567f93bba6@kernel.org> In-Reply-To: <20230716-arm64-gcs-v1-0-bf567f93bba6@kernel.org> To: Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, Jonathan Corbet <corbet@lwn.net>, Andrew Morton <akpm@linux-foundation.org>, Marc Zyngier <maz@kernel.org>, Oliver Upton <oliver.upton@linux.dev>, James Morse <james.morse@arm.com>, Suzuki K Poulose <suzuki.poulose@arm.com>, Arnd Bergmann <arnd@arndb.de>, Oleg Nesterov <oleg@redhat.com>, Eric Biederman <ebiederm@xmission.com>, Kees Cook <keescook@chromium.org>, Shuah Khan <shuah@kernel.org>, "Rick P. Edgecombe" <rick.p.edgecombe@intel.com>, Deepak Gupta <debug@rivosinc.com>, Ard Biesheuvel <ardb@kernel.org>, Szabolcs Nagy <Szabolcs.Nagy@arm.com> Cc: "H.J. Lu" <hjl.tools@gmail.com>, Paul Walmsley <paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, Albert Ou <aou@eecs.berkeley.edu>, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, kvmarm@lists.linux.dev, linux-fsdevel@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Mark Brown <broonie@kernel.org> X-Mailer: b4 0.13-dev-099c9 X-Developer-Signature: v=1; a=openpgp-sha256; l=1205; i=broonie@kernel.org; h=from:subject:message-id; bh=6C9vpUKzxaC1YPufnnUpE8qHeuHqYjFB9iVUxK25t6w=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBktGakI2DafnLEN0xPOYtS8rBwoQOkhbNIa3aIl3+T kLXsS3CJATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCZLRmpAAKCRAk1otyXVSH0C6mB/ wOqidQ+86Oz6oompV7K5g7vr0TQDYT17lne0KPFqCuXH52UJc3v5g1bWEBZCf72AIeUyxqIlXL1eo+ fCOPXyV5gx9kIxzNL5ZchfzMMppq9l2z8iGxIDidnZ6Rwu88A8zTi11YTTgcJawGzWSHPi5x0M4tYS kmZDonpfdL3p2LhjP7t0nhltgDjNqnE0LdDpgk1M6KoClhQX7tBC0Y++yuKtA8RVSwE87k+oaTYNUW ieQNE9JyTJnXTC1B5QfO3otl1F+D47QHyh9/+ktlmXTv5gfNRDIydVmDscZmRd4N7GYcn9T2SDLx4b kNoA3+dO/UVfdsAY+7oBJuc+B6wbTC X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230716_145542_409723_7842357F X-CRM114-Status: GOOD ( 11.59 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: <linux-riscv.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-riscv>, <mailto:linux-riscv-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-riscv/> List-Post: <mailto:linux-riscv@lists.infradead.org> List-Help: <mailto:linux-riscv-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-riscv>, <mailto:linux-riscv-request@lists.infradead.org?subject=subscribe> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" <linux-riscv-bounces@lists.infradead.org> Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org |
Series |
arm64/gcs: Provide support for GCS at EL0
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expand
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Context | Check | Description |
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conchuod/tree_selection | fail | Failed to apply to next/pending-fixes, riscv/for-next or riscv/master |
diff --git a/tools/testing/selftests/arm64/abi/hwcap.c b/tools/testing/selftests/arm64/abi/hwcap.c index d4ad813fed10..38844e4c5aae 100644 --- a/tools/testing/selftests/arm64/abi/hwcap.c +++ b/tools/testing/selftests/arm64/abi/hwcap.c @@ -39,6 +39,17 @@ static void cssc_sigill(void) asm volatile(".inst 0xdac01c00" : : : "x0"); } +static void gcs_sigill(void) +{ + unsigned long *gcspr; + + asm volatile( + "mrs %0, S3_3_C2_C5_1" + : "=r" (gcspr) + : + : "cc"); +} + static void mops_sigill(void) { char dst[1], src[1]; @@ -223,6 +234,14 @@ static const struct hwcap_data { .cpuinfo = "cssc", .sigill_fn = cssc_sigill, }, + { + .name = "GCS", + .at_hwcap = AT_HWCAP2, + .hwcap_bit = HWCAP2_GCS, + .cpuinfo = "gcs", + .sigill_fn = gcs_sigill, + .sigill_reliable = true, + }, { .name = "MOPS", .at_hwcap = AT_HWCAP2,
Add coverage of the GCS hwcap to the hwcap selftest, using a read of GCSPR_EL0 to generate SIGILL without having to worry about enabling GCS. Signed-off-by: Mark Brown <broonie@kernel.org> --- tools/testing/selftests/arm64/abi/hwcap.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)