From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-189.mta0.migadu.com (out-189.mta0.migadu.com [91.218.175.189]) (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 8F3C9223DD5 for ; Mon, 16 Jun 2025 23:06:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.189 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750115190; cv=none; b=g2G9CDX5sr1amNKqL/CJTwxOD+OIN0aR3Xxm4MQFddwDwo499h19ORVJLKSIWnTu8e+Z+RTpQRDQgaIj6m2JdV55fsTEeh/OiH0JkwdlcXkRwGUPJuMFs81lg5Bv815rVGGBAtd7VuxnHLkTQT+93gBiG3aFh2yTvhbjQ5g6ZHg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750115190; c=relaxed/simple; bh=tcxJrBQThmJXpzrxEP1b0alQaWlChu5xzeKdJB4B078=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Ozh0GLu1DVSEvt1+Z5HoIOGS4VLfcN7Pk/hy6SckAF/+KeLAJtawXJjM8MS/OhiuZYMN7YaujGH4oJab7RbCP7S9tW8PUZbnI4Njazii0+dPbEB6rVTZVE8BOef50WpnBG/KhNFfNQp2r3T8tJiqeGyc15gclVWgcr2/8iLJ0ZE= 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=FSHL3ijw; arc=none smtp.client-ip=91.218.175.189 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="FSHL3ijw" 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=1750115185; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=5l6UQN67gdtTgOANxxhIo1cbeQBSAgTDOgoJBDvC88U=; b=FSHL3ijwZYHiyda2aPBpVFQcX+axMWTMbJA5wePlmF04sNYTqUuf4ewijj3IqWSo14HZKO ksr9JCbvIov6UkAmPR3odMTYGRZzVJeBoh6//LWJLGTKx+m7E32zmmo2yPl330zY2INqA5 hkKLrW9zykOVY7PLUnxlZ/0Ga7Df+WY= From: Oliver Upton To: kvmarm@lists.linux.dev Cc: Marc Zyngier , Joey Gouly , Suzuki K Poulose , Zenghui Yu , Oliver Upton Subject: [PATCH v2 22/27] KVM: arm64: Advertise support for FEAT_DoubleFault2 Date: Mon, 16 Jun 2025 16:03:03 -0700 Message-Id: <20250616230308.1192565-23-oliver.upton@linux.dev> In-Reply-To: <20250616230308.1192565-1-oliver.upton@linux.dev> References: <20250616230308.1192565-1-oliver.upton@linux.dev> Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT KVM's external abort injection now respects the exception routing wreckage due to FEAT_DoubleFault2. Advertise the feature. Signed-off-by: Oliver Upton --- arch/arm64/kvm/sys_regs.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index b3e6a7034b64..9d4fe892e8b4 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -1613,7 +1613,6 @@ static u64 __kvm_read_sanitised_id_reg(const struct kvm_vcpu *vcpu, val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_GCS); val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_THE); val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_MTEX); - val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_DF2); val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_PFAR); val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_MPAM_frac); break; @@ -2884,7 +2883,6 @@ static const struct sys_reg_desc sys_reg_descs[] = { ID_AA64PFR0_EL1_FP)), ID_FILTERED(ID_AA64PFR1_EL1, id_aa64pfr1_el1, ~(ID_AA64PFR1_EL1_PFAR | - ID_AA64PFR1_EL1_DF2 | ID_AA64PFR1_EL1_MTEX | ID_AA64PFR1_EL1_THE | ID_AA64PFR1_EL1_GCS | -- 2.39.5