From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 47369131755; Mon, 26 Feb 2024 21:43:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708983826; cv=none; b=VI7xWBK/xBAQvP/4ZV0P6aoscmuoVkh1mjZ1B8/QbLnUz93ZE7kN8jUI1tiwFBOqd4+VuRp91jAamzJtWVsJmookcIJPqm3ohaHtJNFguAmocO4lvdjRxvNS7CZ1UxPDq6NH2+XrxEoiX37Xq0OdGxYjBgYpULxfrb7d/i+Q96s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708983826; c=relaxed/simple; bh=q4y2X/QHhahydjCVDTw5gR86bYLURECOrXgKn3n9zHw=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=ujWnHTJmWSTzZZAUyari/wq+kZ3lrCC25wneeRg2iUhKspkqbvszCVaqvUI2Z1osOn2LZZ78bgmwhuzZZHYNVgujavowMApef6FAnz8l85Qo4AIB2RT0VEIwY3Hg2rGnAUK3ffFT2w3IQckaClTpmO/VVqtkIqN3k6Xn3tBhsYw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DN9gGZSk; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="DN9gGZSk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D540AC433C7; Mon, 26 Feb 2024 21:43:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1708983825; bh=q4y2X/QHhahydjCVDTw5gR86bYLURECOrXgKn3n9zHw=; h=From:Subject:Date:To:Cc:From; b=DN9gGZSklIZq/UL0g1gMnm/1G7uMV4Pq7xaKNIzQiRzY4rogOw+Z97ncNaZDCWhNo bNaUdnkPC1tWPVkJPoWnOc4qyK3sflxjRRxAniL/j0jqnaQ6xJ4STAxIGRYaPlqGsg To4P/lN/7o4bGYVEfYWgxhQJT+OnSA4MDXMcggOQBai1b+BGIBp89P/ppKOXtMyFr1 Mq/V4P8NDXN63BVKhvFXs4SriHidViIPbBwK4IoHgq+NkRcFY6Fh1nhuZAi/tA0kMX fCRLr/J2KPDxz0BdHLi8W3XA3f427qMUDXsqxZLNE3blThJhX8+ZSEriQWUhqyUMva jbNWs34o7i6Ww== From: Mark Brown Subject: [PATCH 0/2] KVM: arm64: Store a cpu_fp_state directly in the vCPU data Date: Mon, 26 Feb 2024 20:44:09 +0000 Message-Id: <20240226-kvm-arm64-group-fp-data-v1-0-07d13759517e@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIABr43GUC/x3MwQqDMAyA4VeRnBfoYunBVxk7BE1dkGpJNxFK3 92y43f4/wpFTKXANFQwObXosXc8HwPMH95XQV26gRx5RxRwOxOypeBxteOXMWZc+MvoWMYwzkI +CvQ6m0S9/ufXu7UbGFEayGkAAAA= To: Marc Zyngier , Oliver Upton , James Morse , Suzuki K Poulose , Catalin Marinas , Will Deacon Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org, Mark Brown X-Mailer: b4 0.13-dev-a684c X-Developer-Signature: v=1; a=openpgp-sha256; l=1307; i=broonie@kernel.org; h=from:subject:message-id; bh=q4y2X/QHhahydjCVDTw5gR86bYLURECOrXgKn3n9zHw=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBl3QYNyJcuw5R7ZvMsPlX9Jct2g8pwbHrFBfsUoUkG dREKPm+JATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCZd0GDQAKCRAk1otyXVSH0KsTB/ 9Km1/eQVR4Bymv26xJINCBgG9Os0SOmZYsDaaFD9cM9YQpJZtWE9rwtzx63a6KbZ2oTJzU6xSEIXd4 8pNZ0Us8fXAX25i1xJ0/WRoZnL0upzJJu1rbPFmGE4qS81CwqbuLbMWvm6o4/1UhCBnzgcmJ4l9TQG mUhxFINAa4p82LL4o1XCbG8cdDPJrzaOGzR48ZfqKX+1xvfbTT5nk4iZIg3IKZ1ucOvQmyYFPoeCZB pjWPXLfzAU6qKt6YGzIUFWkzBG7D+ZWit17CvZG1WFnF7uMprMkHR8MNsaIb/ofRy4KZC/raBn0P54 3R2SZ8Wfg4hptSjMEU/hz710chRvJS X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB Simplify the binding of the guest state to the CPU when returning to the host by storing a copy of the structure used to pass the state in the vCPU data and initialising it during guest setup rather than creating a new copy each time we exit the guest. Signed-off-by: Mark Brown --- Mark Brown (2): KVM: arm64: Rename variable for tracking ownership of FP state KVM: arm64: Reuse struct cpu_fp_state to track the guest FP state arch/arm64/include/asm/kvm_emulate.h | 4 ++-- arch/arm64/include/asm/kvm_host.h | 25 ++++++++++++------------- arch/arm64/kvm/arm.c | 14 +++++++++++++- arch/arm64/kvm/fpsimd.c | 29 ++++++----------------------- arch/arm64/kvm/guest.c | 21 ++++++++++++++------- arch/arm64/kvm/hyp/include/hyp/switch.h | 6 +++--- arch/arm64/kvm/hyp/nvhe/hyp-main.c | 9 +++++---- arch/arm64/kvm/hyp/nvhe/switch.c | 2 +- arch/arm64/kvm/hyp/vhe/switch.c | 2 +- arch/arm64/kvm/reset.c | 14 ++++++++------ 10 files changed, 65 insertions(+), 61 deletions(-) --- base-commit: 54be6c6c5ae8e0d93a6c4641cb7528eb0b6ba478 change-id: 20240226-kvm-arm64-group-fp-data-0ae363ce24fe Best regards, -- Mark Brown