From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=95.215.58.32 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794213186; b=xbFJhbHXXOAvnPRRgA4FuZD1XQdyZCN6gXAT2wGKMLcwi4eiJ9dlxbpO2nLhY46jfcoc 3izsidUChzRzz8WegEhRoIgVgr6Oc806byDYVUABYw+iHcRpAM0bqwYrGfRrAhf5GTCHh zrvgPHaNo/w5avKzsSq+LSnS7ZUY0q3vqdm1xw20JvJi/6AWnGDhKeUrT/vWZ6oWsh9kD QIC+GlYgkZCvkrH0OMQ6fv/f5ZCdhia+hRGtmTs9oD5Xrz5nU5udttmDzgSUMZ6L8lh1o atQ85ZnNtuPBDsHAfSO4tPXJdWNirWmHSSrsvazsO+vhjZbQHcaB/Umq2Jpz5pDkbwA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794213186; h=DMARC-Filter:X-Envelope-To:DKIM-Signature:X-Envelope-To:Received: X-Mizu-Trace-ID:X-Migadu-Flow:From:To:Cc:Subject:Date:Message-ID: X-Mailer:In-Reply-To:References:MIME-Version: Content-Transfer-Encoding; bh=tscIvS/2uNNzd7geDNK8rFMHpCV6KI9seOh0hyrqpj4=; b=wFeJUFpv4LVftULW591CPsOD+tbnrCOl9tL7iDkVR9l5QlslwzAHA4riwt6JgJ6FCvE4 KyhT33jaCSIOLmMdFjR5mu7mnFsHH/NPf3YRiCwCWGDPa+3cM1IrJuc+EETJNTDuu3Fmr fX+2p32jpCjbdwah39MP4xjbiwelZzExgF5G5Zyxguz3EivyQb7kzX56TWFP+WE/Op7WL PeFdegN1CjTCrfKu+RKlW/cuLsgsxTSeV13wo6MwgGSHITBlma58ATfKSXJ+naCuekTF1 bQW3HEjhM1LJ6zatEN3Suut6KTuLq2dd4A9RNI1XJ2y+p/3kqeo8FlWDPYbZT3H+HHg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=lCVV2COP; arc=none smtp.remote-ip=95.215.58.32 Received: from mta1.migadu.com (out-32.mta1.migadu.com [95.215.58.32]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DA217606EEA6 for ; Mon, 9 Nov 2026 08:33:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org DA217606EEA6 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, unprotected) header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=lCVV2COP X-Envelope-To: kvm@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=eF62gDKoO96Jep9ah+yCAh5pGqTeJMWdIW2pxz+Y0j0=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1794213184; v=1; x=1794817984; b=lCVV2COPcREcfPIqIy+ml7BL5xVtiP5cYTiQnEyk294NekzyHaPPiytxLaSElUyfIQQ3hD2q QnfhdOZ5/Tik3ujuYGUcu9Vefi2Ra2MSWI2ltgguozLFXhce/Oz80UI3KQWXUM9E0gYMTi8Q20l rFYnaqsGVHpV5Vz6gUjdc9zY= X-Envelope-To: kvm@vger.kernel.org Received: by smtp.migadu.com with ESMTPS id 41f2f89c3729ba68; Mon, 09 Nov 2026 08:33:03 +0000 X-Mizu-Trace-ID: 41f2f89c3729ba68 X-Migadu-Flow: FLOW_OUT From: Fuad Tabba To: Marc Zyngier , Oliver Upton , kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org Cc: Joey Gouly , Suzuki K Poulose , Zenghui Yu , Steffen Eiden , Catalin Marinas , Will Deacon , Mark Rutland , Vincent Donnefort , Fuad Tabba , kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 16/16] KVM: arm64: Advertise ECV, HAFT and ETS3 to protected VMs Date: Mon, 9 Nov 2026 08:32:05 +0000 Message-ID: <20261109083205.806619-17-fuad.tabba@linux.dev> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20261109083205.806619-1-fuad.tabba@linux.dev> References: <20261109083205.806619-1-fuad.tabba@linux.dev> X-Mailing-List: kvm@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Advertise FEAT_ECV, FEAT_HAFT and FEAT_ETS3 to protected VMs, with ECV capped at IMP and HAFDBS at HAFT, since CNTPOFF and HDBSS only add EL2 and EL3 controls. ECV's self-synchronised counter views trap under the same controls as CNTPCT_EL0 and CNTVCT_EL0, which kvm_handle_cntxct() emulates. Signed-off-by: Fuad Tabba --- arch/arm64/kvm/hyp/nvhe/sys_regs.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c index a0f6737ff8f16..4ab0ee50eea20 100644 --- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c +++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c @@ -173,16 +173,17 @@ static const struct pvm_ftr_bits pvmid_aa64mmfr0[] = { MAX_FEAT(ID_AA64MMFR0_EL1, TGRAN4, IMP), MAX_FEAT(ID_AA64MMFR0_EL1, TGRAN16, IMP), MAX_FEAT(ID_AA64MMFR0_EL1, TGRAN64, IMP), + MAX_FEAT(ID_AA64MMFR0_EL1, ECV, IMP), FEAT_END }; static const struct pvm_ftr_bits pvmid_aa64mmfr1[] = { - MAX_FEAT(ID_AA64MMFR1_EL1, HAFDBS, DBM), + MAX_FEAT(ID_AA64MMFR1_EL1, HAFDBS, HAFT), MAX_FEAT_ENUM(ID_AA64MMFR1_EL1, VMIDBits, 16), MAX_FEAT(ID_AA64MMFR1_EL1, HPDS, HPDS2), MAX_FEAT(ID_AA64MMFR1_EL1, PAN, PAN3), MAX_FEAT(ID_AA64MMFR1_EL1, SpecSEI, IMP), - MAX_FEAT(ID_AA64MMFR1_EL1, ETS, IMP), + MAX_FEAT(ID_AA64MMFR1_EL1, ETS, ETS3), MAX_FEAT(ID_AA64MMFR1_EL1, AFP, IMP), MAX_FEAT(ID_AA64MMFR1_EL1, TIDCP1, IMP), MAX_FEAT(ID_AA64MMFR1_EL1, CMOW, IMP), -- 2.47.3