From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=95.215.58.9 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794213170; b=C59QitygiYT4XzUwuvPjA79GM7wOYrUsxReLYk2cq6UJekBfrlBgcTvMYT5qhaE60w6i AXW3zdlcdAjgyqpM2d1BripPrSc4q9WM5G1fXLsP08WDNcV9md9wk7I7AHwEPUxSVWzVt IRsx6TIpB5Yn6tr2e9DCbTpQYkAvSPNwRoVz52Wi+DSbL1NxFxTgqnaOJ4fVVwkSK5riz eyjQB4MCKRvqcn4+h1fjY7VpoGCoSX89ofIilZFkCDBoOchoceMlovn/iOXFa7qMfZjJ5 6t+YpnMV89mhLQD898RaGFzj3y4cxw6gk/2L2ivMnMmwyD0pn7kxA2sU1wMNRFEIlcg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794213170; 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=Ut9Nym0C5U+5iZecBoNIMpMDQzMmxDB90w5AyEXvzQ0=; b=c2Q+YAWhBbeaNHNfNX1kWulbQQYzmcklbaho3xWSZYYwHTiLMO0VZ51G09ACDWf7/GA4 YbK/P/tPupaDeorkiXnh4LmGaNo51ijLjdTbrGQ0j1ia9mZ3xH1APoUJwPN4mREiWv3l6 +d+NJvzFvdOv1oDGE9D9sKjGN3FWNVzeyM3G6SzeSkR+U8Jv/V//v6mI6vgTBJExdpdgc HC5Fng9SW4sQLyQpzxQ+/4UATFLbAsLnYb24xvNDqyG59T+nHkhYxUfer78jt6XM7zoSR L1gsv0eVkVfbl7LCn/JyFqSsKBoIpDkPSGjI+R7BMKhSHCqqRTVvoV3tf++qoMhUy7g== 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="MGip1yh/"; arc=none smtp.remote-ip=95.215.58.9 Received: from mta1.migadu.com (out-9.mta1.migadu.com [95.215.58.9]) (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 908406082BE0 for ; Mon, 9 Nov 2026 08:32:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 908406082BE0 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=MGip1yh/ X-Envelope-To: linux-kernel@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=PSYHOaV+7+K1ZX7ZkDN48fB/sJAUPij7DWY83+YiVG4=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1794213167; v=1; x=1794817967; b=MGip1yh/CT47MbTuFklWtwk+2wVglhpOYoUuqDH6Pgc6pK0WVJZ7yDLlZYaYAF/+MMQL1r6d Xn/YeS5Tuaj1jc77YAMB7ZkYaMci6fmM6pVz54CujLzigCdIMsiKJc6K8u5m1IXbqd9HEkc/eXt 0sIb1gbqEcOP7RPwUuVIhTwQ= X-Envelope-To: linux-kernel@vger.kernel.org Received: by smtp.migadu.com with ESMTPS id f12ea6fb60e66e67; Mon, 09 Nov 2026 08:32:47 +0000 X-Mizu-Trace-ID: f12ea6fb60e66e67 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 14/16] KVM: arm64: Advertise ECBHB, TIDCP1, TTST and LVA to protected VMs Date: Mon, 9 Nov 2026 08:32:03 +0000 Message-ID: <20261109083205.806619-15-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: linux-kernel@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_ECBHB, FEAT_TIDCP1, FEAT_TTST and FEAT_LVA to protected VMs, capping VARange at LVA, since LVA3 requires FEAT_D128. TIDCP1's control, SCTLR_EL1.TIDCP, is switched with the rest of SCTLR_EL1. Signed-off-by: Fuad Tabba --- arch/arm64/kvm/hyp/nvhe/sys_regs.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c index 08805c7e4e5a7..8e9283dae3484 100644 --- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c +++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c @@ -170,7 +170,9 @@ static const struct pvm_ftr_bits pvmid_aa64mmfr1[] = { MAX_FEAT(ID_AA64MMFR1_EL1, SpecSEI, IMP), MAX_FEAT(ID_AA64MMFR1_EL1, ETS, IMP), MAX_FEAT(ID_AA64MMFR1_EL1, AFP, IMP), + MAX_FEAT(ID_AA64MMFR1_EL1, TIDCP1, IMP), MAX_FEAT(ID_AA64MMFR1_EL1, CMOW, IMP), + MAX_FEAT(ID_AA64MMFR1_EL1, ECBHB, IMP), FEAT_END }; @@ -178,6 +180,8 @@ static const struct pvm_ftr_bits pvmid_aa64mmfr2[] = { MAX_FEAT(ID_AA64MMFR2_EL1, CnP, IMP), MAX_FEAT(ID_AA64MMFR2_EL1, UAO, IMP), MAX_FEAT(ID_AA64MMFR2_EL1, IESB, IMP), + MAX_FEAT(ID_AA64MMFR2_EL1, VARange, 52), + MAX_FEAT_ENUM(ID_AA64MMFR2_EL1, ST, 48_47), MAX_FEAT(ID_AA64MMFR2_EL1, AT, IMP), MAX_FEAT(ID_AA64MMFR2_EL1, IDS, IMP), MAX_FEAT(ID_AA64MMFR2_EL1, TTL, IMP), -- 2.47.3