From d8fe4431ec7e158be1267ecece8d7d338a4b9703 Mon Sep 17 00:00:00 2001 From: Philipp Deppenwiese Date: Fri, 18 Mar 2016 00:52:54 +0100 Subject: util/intelmetool: Add intelmetool from Damien Zammit The intelmetool shows information about the Intel Management Engine for different platforms. Original source code can be found under following link: https://github.com/zamaudio/intelmetool.git Change-Id: I0eb17833a21eb04cf9245a7312289a4102bec1a9 Signed-off-by: Philipp Deppenwiese Reviewed-on: https://review.coreboot.org/14136 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth --- util/intelmetool/mmap.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 util/intelmetool/mmap.c (limited to 'util/intelmetool/mmap.c') diff --git a/util/intelmetool/mmap.c b/util/intelmetool/mmap.c new file mode 100644 index 0000000000..da36eaac08 --- /dev/null +++ b/util/intelmetool/mmap.c @@ -0,0 +1,58 @@ +/* intelmetool + * + * Copyright (C) 2013-2015 Damien Zammit + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include "mmap.h" +#include + +#ifndef __DARWIN__ +int fd_mem; + +void *map_physical_exact(uint64_t phys_addr, uint64_t mapto, size_t len) { + void *virt_addr; + int err; + + virt_addr = mmap((void*)mapto, len, PROT_WRITE | PROT_READ, + MAP_SHARED | MAP_FIXED, fd_mem, (off_t) phys_addr); + + if (virt_addr == MAP_FAILED) { + err = errno; + printf("Error mapping physical memory 0x%016" PRIx64 "[0x%zx] ERRNO=%d\n", + phys_addr, len, err); + return NULL; + } + + return virt_addr; +} + +void *map_physical(uint64_t phys_addr, size_t len) { + void *virt_addr; + int err; + + virt_addr = mmap(NULL, len, PROT_WRITE | PROT_READ, MAP_SHARED, fd_mem, (off_t) phys_addr); + + if (virt_addr == MAP_FAILED) { + err = errno; + printf("Error mapping physical memory 0x%016" PRIx64 "[0x%zx] ERRNO=%d\n", + phys_addr, len, err); + return NULL; + } + + return virt_addr; +} + +void unmap_physical(void *virt_addr, size_t len) { + munmap(virt_addr, len); +} +#endif -- cgit v1.2.3