From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 15868C36010 for ; Tue, 8 Apr 2025 19:27:59 +0000 (UTC) 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:Cc:To: Content-Transfer-Encoding:Content-Type:MIME-Version:Message-Id:Date:Subject: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=sty5Yv/Femd2TJXJbd+uftLVXZtVSCgledVFgZIlgV0=; b=RUhOeEE8KOQx54 2CcSROp/guC5mveiKfPCH5wz4STetwgmB0CVbiHRfla5fcQrcd528NSn4oKLrzqN4V3tLY6amqFoN +OAYAmolRS56+6Q4N8rskERIbQHKtw64Iadb6nmAlbO/JRYS4BFzD4r2OS0OLRSMzIS/CENxsx433 Ue1qlFxl01E1iafkaisMqkKiBuXWNcJX++7n+NZq5+IV05lYhnqCfo7TdlrMjXRVxvKXPh6YhUG6p cZ3pfPEpp3phhou/HWOptTv9yIwaUE/0iQkIb7GN2ZYkuQwrd5vqyrq8E/966ofG3DBJwGleH4S2u pMzljm8WGtD67TRu265Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1u2Ebu-00000005EuY-2kKz; Tue, 08 Apr 2025 19:27:50 +0000 Received: from nyc.source.kernel.org ([2604:1380:45d1:ec00::3]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1u2DaU-000000055qF-2Y7w for linux-arm-kernel@lists.infradead.org; Tue, 08 Apr 2025 18:22:20 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id DE688A48FBE; Tue, 8 Apr 2025 18:16:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 29BB9C4CEE5; Tue, 8 Apr 2025 18:22:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1744136537; bh=eHdcGx888xtlC48ZA5KqHMbjHiCFTZ5zjevtdOgk8Z4=; h=From:Subject:Date:To:Cc:From; b=BvFRBEcl5OsEQi7f/QftnXa7g9jZZyjRi+h36rRb9nVHmg7uJlE73TTQvQyRn5/lP CCz7CnVOGM7R1mJlPiucwR7aIBuRbyBA8yMv2ufrVMBRmykVP3EQ75eyC3F8NwhDMN LhW3o5eX67JkPQROJPeB7jNVqI0TVFzTFtevv1MLc1UoZiGRFLzeUWB+RSWJA38hsP oRVaxCgcVeA8c+hpq3bF0nDQqobZ8zTP8tsHJSbxOfXAKljc40pccb47pfcwGHJkE+ hIqBBtuoDHgcpr2TKjvym4QlMTkjr9TVqr2QOdw8p78oFppsq2kOWzTVxcpWc03L4f MNBYQrymw3lHg== From: Mark Brown Subject: [PATCH 5.15 v3 00/11] KVM: arm64: Backport of SVE fixes to v5.15 Date: Tue, 08 Apr 2025 19:09:55 +0100 Message-Id: <20250408-stable-sve-5-15-v3-0-ca9a6b850f55@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAHNm9WcC/2XNQQqDMBAF0KvIrBuZTIxKV71H6SLqRENFSyKhR bx7Q1YtLv985v0dAnvHAa7FDp6jC25dUlCXAvrJLCMLN6QMhKRRUS3CZrqZRYgstJBadHZodNX S0FsD6evl2bp3Fu+gS6nhka6TC9vqP3kmytxlsUI6iVEKFG01IGtrpUS6PdkvPJerHzMW6RdQZ 4ASoNCo2jStITR/wHEcX6/bJTb2AAAA X-Change-ID: 20250326-stable-sve-5-15-bfd75482dcfa To: Greg Kroah-Hartman , Marc Zyngier , James Morse , Suzuki K Poulose , Catalin Marinas , Will Deacon , Oleg Nesterov , Oliver Upton Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Mark Brown , Mark Rutland , Eric Auger , Wilco Dijkstra , Eric Auger , Florian Weimer , Fuad Tabba , Jeremy Linton , Paolo Bonzini , James Clark X-Mailer: b4 0.15-dev-c25d1 X-Developer-Signature: v=1; a=openpgp-sha256; l=2485; i=broonie@kernel.org; h=from:subject:message-id; bh=eHdcGx888xtlC48ZA5KqHMbjHiCFTZ5zjevtdOgk8Z4=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBn9WlLibYUDyzvWj6QR2m2X0cD8FPDQOXDzOCKdBw7 v4qG836JATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCZ/VpSwAKCRAk1otyXVSH0OjfB/ 961xgT1ybYDeYy1GntLMrAWWGvOVY3Q6F5R1f8BgjIVQ+5KfSEriODye3WBRgqL9Cb1g6qC74LsMvn Hb+y6f3wRTR+CFM9z3/i2ilTpyi/ffAa+H/9Vwt5vwNUyhldIN9VX1IcIVIk61ZbborgUYBYVBznK/ YJurG1b7TrVrQE6Ysipc3lmVl8wlGwJzO0UO95YPY4HVAKLFDvSSIYJ/95ClMxQrDGqFtcCM2hUgmu ari3U0Mn0VvEcUtH6hSs4tPZB53iSaxYHbRL2GzCZHS3jPpgmUVRzQlBfJvBkILhtnxU/N1mISnDck GPDKxyb+jQD7ob2iBuovmj2CMsmScy X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250408_112218_776899_F34C7143 X-CRM114-Status: UNSURE ( 9.94 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This series backports some recent fixes for SVE/KVM interactions from Mark Rutland to v5.15. Signed-off-by: Mark Brown --- Changes in v3: - Explicitly include "KVM: arm64: Always start with clearing SVE flag on load", it was included previously as part of a conflcit resolution. - Link to v2: https://lore.kernel.org/r/20250403-stable-sve-5-15-v2-0-30a36a78a20a@kernel.org Changes in v2: - Resend with Greg and the stable list added. - Link to v1: https://lore.kernel.org/r/20250402-stable-sve-5-15-v1-0-84d0e5ff1102@kernel.org --- Fuad Tabba (1): KVM: arm64: Calculate cptr_el2 traps on activating traps Marc Zyngier (2): KVM: arm64: Get rid of host SVE tracking/saving KVM: arm64: Always start with clearing SVE flag on load Mark Brown (4): KVM: arm64: Discard any SVE state when entering KVM guests arm64/fpsimd: Track the saved FPSIMD state type separately to TIF_SVE arm64/fpsimd: Have KVM explicitly say which FP registers to save arm64/fpsimd: Stop using TIF_SVE to manage register saving in KVM Mark Rutland (4): KVM: arm64: Unconditionally save+flush host FPSIMD/SVE/SME state KVM: arm64: Remove host FPSIMD saving for non-protected KVM KVM: arm64: Remove VHE host restore of CPACR_EL1.ZEN KVM: arm64: Eagerly switch ZCR_EL{1,2} arch/arm64/include/asm/fpsimd.h | 4 +- arch/arm64/include/asm/kvm_host.h | 17 +++-- arch/arm64/include/asm/kvm_hyp.h | 7 ++ arch/arm64/include/asm/processor.h | 7 ++ arch/arm64/kernel/fpsimd.c | 117 +++++++++++++++++++++++--------- arch/arm64/kernel/process.c | 3 + arch/arm64/kernel/ptrace.c | 3 + arch/arm64/kernel/signal.c | 3 + arch/arm64/kvm/arm.c | 1 - arch/arm64/kvm/fpsimd.c | 72 +++++++++----------- arch/arm64/kvm/hyp/entry.S | 5 ++ arch/arm64/kvm/hyp/include/hyp/switch.h | 86 +++++++++++++++-------- arch/arm64/kvm/hyp/nvhe/hyp-main.c | 9 ++- arch/arm64/kvm/hyp/nvhe/switch.c | 52 +++++++++----- arch/arm64/kvm/hyp/vhe/switch.c | 4 ++ arch/arm64/kvm/reset.c | 3 + 16 files changed, 266 insertions(+), 127 deletions(-) --- base-commit: 0c935c049b5c196b83b968c72d348ae6fff83ea2 change-id: 20250326-stable-sve-5-15-bfd75482dcfa Best regards, -- Mark Brown