From owner-dev-commits-src-all@freebsd.org Wed Jun 2 11:17:01 2021 Return-Path: Delivered-To: dev-commits-src-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id CA8116404E8; Wed, 2 Jun 2021 11:17:01 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Fw61T5LxPz4s6n; Wed, 2 Jun 2021 11:17:01 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 9C52615CAA; Wed, 2 Jun 2021 11:17:01 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 152BH1Tu026636; Wed, 2 Jun 2021 11:17:01 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 152BH124026635; Wed, 2 Jun 2021 11:17:01 GMT (envelope-from git) Date: Wed, 2 Jun 2021 11:17:01 GMT Message-Id: <202106021117.152BH124026635@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Andrew Turner Subject: git: 0a0d6ce34d6b - main - Use the arm virtual counter in the arm64 loader MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: andrew X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 0a0d6ce34d6be89cb356c7815648e455fabe3151 Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-all@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for all branches of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Jun 2021 11:17:01 -0000 The branch main has been updated by andrew: URL: https://cgit.FreeBSD.org/src/commit/?id=0a0d6ce34d6be89cb356c7815648e455fabe3151 commit 0a0d6ce34d6be89cb356c7815648e455fabe3151 Author: Andrew Turner AuthorDate: 2021-05-12 07:45:09 +0000 Commit: Andrew Turner CommitDate: 2021-06-02 10:58:20 +0000 Use the arm virtual counter in the arm64 loader It exist on all ARMv8+ CPUs, and other boot loaders rely on it being present. Sponsored by: Innovate UK Differential Revision: https://reviews.freebsd.org/D30410 --- stand/efi/libefi/Makefile | 5 +-- stand/efi/libefi/time_arm64.c | 72 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 75 insertions(+), 2 deletions(-) diff --git a/stand/efi/libefi/Makefile b/stand/efi/libefi/Makefile index 99b31338a75d..8f1a30d86900 100644 --- a/stand/efi/libefi/Makefile +++ b/stand/efi/libefi/Makefile @@ -27,9 +27,10 @@ SRCS+= teken.c .if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386" SRCS+= time.c -.elif ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "arm" || \ - ${MACHINE_CPUARCH} == "riscv" +.elif ${MACHINE_CPUARCH} == "arm" || ${MACHINE_CPUARCH} == "riscv" SRCS+= time_event.c +.elif ${MACHINE_CPUARCH} == "aarch64" +SRCS+= time_arm64.c .endif # We implement a slightly non-standard %S in that it always takes a diff --git a/stand/efi/libefi/time_arm64.c b/stand/efi/libefi/time_arm64.c new file mode 100644 index 000000000000..baa0f8bfa1ed --- /dev/null +++ b/stand/efi/libefi/time_arm64.c @@ -0,0 +1,72 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2021 Andrew Turner + * + * This work was supported by Innovate UK project 105694, "Digital Security + * by Design (DSbD) Technology Platform Prototype". + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include +__FBSDID("$FreeBSD$"); + +#include +#include + +#include +#include + +#include + +static uint64_t timer_freq; + +void +efi_time_init(void) +{ + /* Find the timer frequency */ + timer_freq = READ_SPECIALREG(cntfrq_el0); +} + +void +efi_time_fini(void) +{ +} + +time_t +time(time_t *tloc) +{ + time_t t; + + t = READ_SPECIALREG(cntvct_el0) / timer_freq; + if (tloc != NULL) + *tloc = t; + + return (t); +} + +time_t +getsecs(void) +{ + return time(NULL); +}