From nobody Thu Oct 2 19:01:41 2025 Received: from out-171.mta1.migadu.com (out-171.mta1.migadu.com [95.215.58.171]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B913E2D9794 for ; Fri, 12 Sep 2025 08:28:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757665686; cv=none; b=rqAa8eoONgyfDycmK9vK+v3brRZEt8eaDFTeLpiboCI0l2xaGzjKGE5RgGgIJ6v33bjUFakThVK2J04B2JVFZPwRvMjh0BkirjNKsk3Za5gcbEpQp1ACGNC+oUDRz30gjc8Kb872td6laMuaxJOdQupOEpJshNJGYS7217+0Gms= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757665686; c=relaxed/simple; bh=XPv2E+QqHbQDLO4EmTCQZMManpkJEAmxYKBnXLGB/Q8=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=DKd6gjzrTaGG44Yvfpi+jstFVTEpO7bOFmAY6QV90Nr9U840499QwXdZIx6DwLvFxZ1FhpL+cs55B6MFHMEFHp+flv9USztRPJExRpcCgLfcpSnu6x5Ek3FTMzj93b2CDKJTuZdAc0DfmtoMSRbeIqo0WR5Am36DOcP7gzYC/TY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=kDlamB2D; arc=none smtp.client-ip=95.215.58.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="kDlamB2D" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1757665671; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=iAQrbCqZZ4sOxWZdD0ZcXvxkxM3DekbLizKEk5JXiYI=; b=kDlamB2DmhQj2fTmsOmZiyKAroCsKWkXguZcNfTcNVtkG1bOz8NDZcVCf2adk4w6V4LPeR j6LjxuUCyJT2gCgG2RXhbV3aBg0/oeSKoo3tl0EB4Srxpgh3mVIWnr/kM8bC2uZsWeHNUj gjF97lNGZ34GseD0JoxAiDitli856yE= From: Itaru Kitayama Date: Fri, 12 Sep 2025 17:27:40 +0900 Subject: [PATCH] PMCR_EL0.N is RAZ/WI. At least a build failes in Ubuntu 22.04 LTS. Remove the set function. Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250912-selftest-fix3-v1-1-256710a5ae5b@linux.dev> X-B4-Tracking: v=1; b=H4sIAHvZw2gC/x2M0QpAQBAAf+XaZ1usdMevyIPYY0vo9pKSf7d5n KmZB5STsELnHkh8icqxG1SFg2kd94VRZmOgkpqyrQiVt5hZM0a5ayQfKTTs2zkQWHMmNv//+uF 9P1b0CzVfAAAA X-Change-ID: 20250912-selftest-fix3-27f285e79d82 To: Marc Zyngier , Oliver Upton , Joey Gouly , Suzuki K Poulose , Zenghui Yu , Paolo Bonzini , Shuah Khan Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Itaru Kitayama X-Migadu-Flow: FLOW_OUT Signed-off-by: Itaru Kitayama --- Seen a build failure with old Ubuntu 22.04 LTS, while the latest release has no build issue, a write to the bit fields is RAZ/WI, remove the function. --- tools/testing/selftests/kvm/arm64/vpmu_counter_access.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/tools/testing/selftests/kvm/arm64/vpmu_counter_access.c b/tool= s/testing/selftests/kvm/arm64/vpmu_counter_access.c index f16b3b27e32ed7ca57481f27d689d47783aa0345..56214a4430be90b3e1d840f2719= b22dd44f0b49b 100644 --- a/tools/testing/selftests/kvm/arm64/vpmu_counter_access.c +++ b/tools/testing/selftests/kvm/arm64/vpmu_counter_access.c @@ -45,11 +45,6 @@ static uint64_t get_pmcr_n(uint64_t pmcr) return FIELD_GET(ARMV8_PMU_PMCR_N, pmcr); } =20 -static void set_pmcr_n(uint64_t *pmcr, uint64_t pmcr_n) -{ - u64p_replace_bits((__u64 *) pmcr, pmcr_n, ARMV8_PMU_PMCR_N); -} - static uint64_t get_counters_mask(uint64_t n) { uint64_t mask =3D BIT(ARMV8_PMU_CYCLE_IDX); @@ -490,7 +485,6 @@ static void test_create_vpmu_vm_with_pmcr_n(uint64_t pm= cr_n, bool expect_fail) * Setting a larger value of PMCR.N should not modify the field, and * return a success. */ - set_pmcr_n(&pmcr, pmcr_n); vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_PMCR_EL0), pmcr); pmcr =3D vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(SYS_PMCR_EL0)); =20 --- base-commit: aae5a9834b388860844b294c70c8770dd26e528c change-id: 20250912-selftest-fix3-27f285e79d82 Best regards, --=20 Itaru Kitayama