From patchwork Thu Nov 28 23:25:28 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Mackerras X-Patchwork-Id: 11266641 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1729C138C for ; Thu, 28 Nov 2019 23:25:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E980F217BA for ; Thu, 28 Nov 2019 23:25:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=ozlabs.org header.i=@ozlabs.org header.b="WyMBBKeJ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726664AbfK1XZf (ORCPT ); Thu, 28 Nov 2019 18:25:35 -0500 Received: from bilbo.ozlabs.org ([203.11.71.1]:51507 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726653AbfK1XZe (ORCPT ); Thu, 28 Nov 2019 18:25:34 -0500 Received: by ozlabs.org (Postfix, from userid 1003) id 47PDJq27m4z9sR2; Fri, 29 Nov 2019 10:25:31 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ozlabs.org; s=201707; t=1574983531; bh=K3rUI3oKvNc9LFGK8LZbyA4UxPK1ZJoyUWkTY87H/ik=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=WyMBBKeJv/k/CHoDeakagEbM8YYsaz919gFs2XU5OSL0FYebH4r7KtDuVVajxaDRO yUyASs6jPL4YcliuQUGTaSgK3EvHVpZVkPmS6pVcjT779Ss0cGp9ZD+Lp9tbgwLcyT 19+5fVSkZLHFKDPOUB2SXFEIy+JfjWCY/PolSluVbb69LK8j1tAuQU6S8wA8e6ZhSG lPg8aBeEX6kPw0bJPma410yHfo6f7NP/MMIWHlqs9h5tYNdAV4oW7a44eVCmnmgdZs OaBm+wmIdefUeNQAjDlctLGfvhpt7vi9nVdrH8x5vJOaUo0gEjHekYE3OODhwuyvQ6 gcntLNyW3149w== Date: Fri, 29 Nov 2019 10:25:28 +1100 From: Paul Mackerras To: Paolo Bonzini , kvm@vger.kernel.org Cc: kvm-ppc@vger.kernel.org, Bharata B Rao Subject: [GIT PULL v2] Please pull my kvm-ppc-uvmem-5.5-2 tag Message-ID: <20191128232528.GA12171@oak.ozlabs.ibm.com> References: <20191126052455.GA2922@oak.ozlabs.ibm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20191126052455.GA2922@oak.ozlabs.ibm.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Paolo, Bharata has corrected the issue identified by Hugh Dickins, so please do a pull from my kvm-ppc-uvmem-5.5-2 tag. This adds code to manage the movement of pages for a secure KVM guest between normal memory managed by the host kernel and secure memory managed by the ultravisor, on Power systems with Protected Execution Facility hardware and firmware. Secure memory is not accessible to the host kernel and is represented as device memory using the ZONE_DEVICE facility. Thanks, Paul. The following changes since commit 96710247298df52a4b8150a62a6fe87083093ff3: Merge tag 'kvm-ppc-next-5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD (2019-11-25 11:29:05 +0100) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc tags/kvm-ppc-uvmem-5.5-2 for you to fetch changes up to 013a53f2d25a9fa9b9e1f70f5baa3f56e3454052: powerpc: Ultravisor: Add PPC_UV config option (2019-11-28 17:02:40 +1100) ---------------------------------------------------------------- KVM: Add support for secure guests under the Protected Execution Framework (PEF) Ultravisor on POWER. This enables secure memory to be represented as device memory, which provides a way for the host to keep track of which pages of a secure guest have been moved into secure memory managed by the ultravisor and are no longer accessible by the host, and manage movement of pages between secure and normal memory. ---------------------------------------------------------------- Anshuman Khandual (1): powerpc: Ultravisor: Add PPC_UV config option Bharata B Rao (6): mm: ksm: Export ksm_madvise() KVM: PPC: Book3S HV: Support for running secure guests KVM: PPC: Book3S HV: Shared pages support for secure guests KVM: PPC: Book3S HV: Radix changes for secure guest KVM: PPC: Book3S HV: Handle memory plug/unplug to secure VM KVM: PPC: Book3S HV: Support reset of secure guest Documentation/virt/kvm/api.txt | 18 + arch/powerpc/Kconfig | 17 + arch/powerpc/include/asm/hvcall.h | 9 + arch/powerpc/include/asm/kvm_book3s_uvmem.h | 74 +++ arch/powerpc/include/asm/kvm_host.h | 6 + arch/powerpc/include/asm/kvm_ppc.h | 1 + arch/powerpc/include/asm/ultravisor-api.h | 6 + arch/powerpc/include/asm/ultravisor.h | 36 ++ arch/powerpc/kvm/Makefile | 3 + arch/powerpc/kvm/book3s_64_mmu_radix.c | 25 + arch/powerpc/kvm/book3s_hv.c | 143 +++++ arch/powerpc/kvm/book3s_hv_uvmem.c | 785 ++++++++++++++++++++++++++++ arch/powerpc/kvm/powerpc.c | 12 + include/uapi/linux/kvm.h | 1 + mm/ksm.c | 1 + 15 files changed, 1137 insertions(+) create mode 100644 arch/powerpc/include/asm/kvm_book3s_uvmem.h create mode 100644 arch/powerpc/kvm/book3s_hv_uvmem.c