From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792789010; b=MQn+F7FmQazeMrETmKrABjfVpHJRN5Q+Rn8tV/qIb61Jh7P2zC8fFf4zHxB4xZtb9WR5 xS/kOiJbLBfqyusaq9UtXoURJGtQ+ertJJtUomKWpb31mfKOWW7Jcx1XrzRYhqKjlh5EY vG3uKEiSh5MVAPdFb9OhjxRG3/o1pPTQQ+D55TfSx8xklzobWlplB3xFiRb2Gfg2+EaeY y54BhsAfiid7MXsBCZencriKmmt2My5Nteo/qklRSMm+MAGnFaKbK6mbpBG+I98xgu+G2 OSDO34FKGjcDQ1Jjh4MwtHLHSJc2g95mgyKnSb190cnU7K985JeQC6rTbj2DQ3WHhPg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792789010; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:MIME-Version:Content-Transfer-Encoding; bh=sD3mGCV8BL/5Gs4RekCtJWpXYQNGxsgu5WEzJ4j9V4Q=; b=s5gPJJA3d3UeSXc/JUbHbSQYAFfSqSHGf1CzUfg2E2YK08DEXSM5H3BXbrXVezTeJ6aI lt9gIH6ePdV/1QwRrGiBqzX+JpeRG0BZySNoixxA1ehwZNh5AnwBNY/mt8ZdToSYIXFS4 IOuiy+KtKnOp74RNpoMboEdrsxLJYA9Js04oqqHbrOP78stBr+2qN6lgtTXhsVow6yilu kpejdFgchsgaa1awo+B96N9csDy86NCQMKsuPFswEGTtSW2BU8guJCeT6lPP0Fz8dYWH1 9HDqZU3Ge5or7b5PQRmD38XDAnCbXkv6QeK+w12u68OehpdGMarP8YkZGwkoF0yTG3g== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=g4gbhFtl; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AA8E3606A320 for ; Fri, 23 Oct 2026 20:56:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=g4gbhFtl Received: by smtp.kernel.org (Postfix) with ESMTPSA id 68A6B1F031E3; Fri, 23 Oct 2026 20:56:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792789009; bh=sD3mGCV8BL/5Gs4RekCtJWpXYQNGxsgu5WEzJ4j9V4Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=g4gbhFtlKRG0r7FgHGKnUjBLPTt/Q2V1eDztiygGkzorlssTf6GEBT9t2PH/cFwaW TdOv0fJ10WeX/MoGGjHkpVSXLqISkJc71exrhnvecBFOT5Skf/kKizslvBI/hdFPq7 a063iN3eKkL84VfiwGaXSx48rh9lurTlu75SUYXZW2YEuFOMHh3PyEzQ3QdLDTi0A5 IPl0DDhHkB4Vv4bgc0vyp4K0sjyJFrTH8s3wqyN+66yMV2WEF2xKE/H0SGRuVhJ0O3 6d/eaW+fkBJ09krzvqcJ6FlQaSQmQROiBm9Z39ZB4O9ev+2RwWYW+gKdQOCdixLI0a pST83PI1EX/7A== From: Oliver Upton To: kvmarm@lists.linux.dev Cc: Marc Zyngier , Joey Gouly , Suzuki K Poulose , Zenghui Yu , Wei-Lin Chang , Steffen Eiden , Fuad Tabba , Leonardo Bras , Oliver Upton Subject: [PATCH v2 15/28] KVM: arm64: nv: Respect HD when computing translated TCR Date: Fri, 23 Oct 2026 13:55:57 -0700 Message-ID: <20261023205610.1044532-16-oupton@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20261023205610.1044532-1-oupton@kernel.org> References: <20261023205610.1044532-1-oupton@kernel.org> X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit In a similar vein to the recent fix for FEAT_HAF, propagate the L1 hypervisor's setting for HD to the translated TCR_EL1 value, allowing FEAT_HAFDBS to be used by an L1 hypervisor in the EL2 translation regime. Signed-off-by: Oliver Upton --- arch/arm64/include/asm/kvm_nested.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/kvm_nested.h b/arch/arm64/include/asm/kvm_nested.h index d51d011fc68a..11944dfb204c 100644 --- a/arch/arm64/include/asm/kvm_nested.h +++ b/arch/arm64/include/asm/kvm_nested.h @@ -30,7 +30,8 @@ static inline u64 translate_tcr_el2_to_tcr_el1(u64 tcr) (tcr & TCR_EL2_ORGN0_MASK) | (tcr & TCR_EL2_IRGN0_MASK) | (tcr & TCR_EL2_T0SZ_MASK) | - ((tcr & TCR_EL2_HA) ? TCR_HA : 0); + ((tcr & TCR_EL2_HA) ? TCR_HA : 0) | + ((tcr & TCR_EL2_HD) ? TCR_HD : 0); } static inline u64 translate_cptr_el2_to_cpacr_el1(u64 cptr_el2) -- 2.47.3