From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3E5B4606EEA1 for ; Mon, 9 Nov 2026 08:33:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=WsZ6GOQr; dkim=pass (1024-bit key, unprotected) header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=MGip1yh/ DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Unsubscribe-Post: List-Owner; bh=Ut9Nym0C5U+5iZecBoNIMpMDQzMmxDB90w5AyEXvzQ0=; b=WsZ6GOQrb/pTCF biKdKmqVFnvFaIWeN60SsDuaW3gnCkF7mQplqYGVw8hHY9ZvXmgbuHAPy1o+ClUFBJojwomqqGKDn g9d7Tw41a9nH+H1U2Q7nYpbaboKIlWp0LhafdCNxX75TiG8leiWw/i9779Bh832KV4gmfg+doVm/z QA0xnzWamPCvBNfj/sSdpixNQOBn0MdiOndbs8Ez9p7snTZ0VPySmnNaGdFEFMAhCb1IlNGiTOXlW 6XXXGkSHVFY2UVqcmDuu3eyTIRMJyKEG3GGjlGGhR/nmqgn0Xry4f0OvNmPZ9i/UhBiBkuNg4tNPP GBgZA7YK67MhJiWJ95XA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xQKoD-000000004Ze-2ah9; Mon, 09 Nov 2026 08:32:57 +0000 Received: from out-4.mta1.migadu.com ([95.215.58.4] helo=mta1.migadu.com) by bombadil.infradead.org with esmtps (Exim 4.100.1 #2 (Red Hat Linux)) id 1xQKo5-000000004QK-1bcv for linux-arm-kernel@lists.infradead.org; Mon, 09 Nov 2026 08:32:54 +0000 X-Envelope-To: linux-arm-kernel@lists.infradead.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-arm-kernel@lists.infradead.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-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261109_003251_705909_3D729013 X-CRM114-Status: UNSURE ( 8.90 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.1 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-18.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 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