From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 C3A243921CD for ; Tue, 23 Jun 2026 18:42:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782240129; cv=none; b=RIzqyCvCWNeQE1rvxy35BgIAKRg2HoRrO1krPC4LhymJPPUEyjZL/0SIc8Yu5+sidJDuA2HSNgO/8WeZICiqTNKScbimwUgBFri/fBtb7M+pYKWAgZB3Wu6RoBSGG9acOW3ENM9tDLGcr6W/u1F6xXbBVafQLMPRVjVutgtsbuU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782240129; c=relaxed/simple; bh=L9EbqIoXi4lqgtbOixu3i8NrKxi9s2ptBYnh9f5vtAQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=HkHBpxQCNx4QDLzmTxHwM0TlwDB6/v2lqqRun8f+c83HWvORIRrmZMAwYqo6Bw2SBuA2KlB98qlYEHcIlNp+EPb3iwH751rrxHw9qfYEWuBxmhLdM9c40kBED0CLHmUlovZzBgeJ6viSQPGLSxtM0WSN7MeQFi2N3OUnh7qhJSI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Qe2KoZCb; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Qe2KoZCb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9029A1F00ADB; Tue, 23 Jun 2026 18:42:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1782240128; bh=uFsoeteNkL3H+lvIgeRxBhDFR2gGdf02bV1mVkRZEmM=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Qe2KoZCbvRI2nyctF+uTUIak0ja8vnA3mI4YELMomKqbBX2qK5gxswZBnZXyMJyln KYojzmbnqier8GH4lDPbTOvmDJsyD2h9/WJFzVGmzb+4mcphcqPwZ7xbLxQUU1l1bx nzOYG4+aTufY1d+vqBCI1uRCJawAjAWJlTpWDTUcG7rAk96OU2rp4htDhcjRtWS1Ms r+5c37NQKIZmkhpFKoHhee61RGLFp1khvw4V8TLHSc406PzOefO5rnQBha63g+KFsh i+MewHJ6RL1EZagg5636i+ESRx6R/XvZ5Y9FoGM7LaUpjV8uxuK2G6qME2qiPYDnMA m1E29kJtIfCvA== From: Oliver Upton To: kvmarm@lists.linux.dev Cc: Marc Zyngier , Joey Gouly , Suzuki K Poulose , Zenghui Yu , Wei-Lin Chang , Steffen Eiden , Oliver Upton Subject: [PATCH 16/22] KVM: arm64: nv: Expose FEAT_HAFDBS Date: Tue, 23 Jun 2026 11:41:55 -0700 Message-ID: <20260623184201.1518871-17-oupton@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260623184201.1518871-1-oupton@kernel.org> References: <20260623184201.1518871-1-oupton@kernel.org> Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Everything is in place now to support hardware dirty state management. Flip the corresponding bit and advertise the feature to the guest. Signed-off-by: Oliver Upton --- arch/arm64/kvm/nested.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/kvm/nested.c b/arch/arm64/kvm/nested.c index 4d128003ae7a..2408d604a1e1 100644 --- a/arch/arm64/kvm/nested.c +++ b/arch/arm64/kvm/nested.c @@ -1790,7 +1790,7 @@ u64 limit_nv_id_reg(struct kvm *kvm, u32 reg, u64 val) if (test_bit(KVM_ARM_VCPU_HAS_EL2_E2H0, kvm->arch.vcpu_features)) val &= ~ID_AA64MMFR1_EL1_VH; - val = ID_REG_LIMIT_FIELD_ENUM(val, ID_AA64MMFR1_EL1, HAFDBS, AF); + val = ID_REG_LIMIT_FIELD_ENUM(val, ID_AA64MMFR1_EL1, HAFDBS, DBM); break; case SYS_ID_AA64MMFR2_EL1: -- 2.47.3