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D38350.diff

diff --git a/stand/efi/loader/bootinfo.c b/stand/efi/loader/bootinfo.c
--- a/stand/efi/loader/bootinfo.c
+++ b/stand/efi/loader/bootinfo.c
@@ -43,6 +43,8 @@
#ifdef EFI
#include <efi.h>
#include <efilib.h>
+#else
+#include "kboot.h"
#endif
#include "bootstrap.h"
@@ -361,10 +363,8 @@
return(EINVAL);
}
-#ifdef EFI
/* Try reading the /etc/fstab file to select the root device */
getrootmount(devformat(rootdev));
-#endif
addr = 0;
for (xp = file_findfile(NULL, NULL); xp != NULL; xp = xp->f_next) {
@@ -428,6 +428,8 @@
#endif
#ifdef EFI
bi_load_efi_data(kfp, exit_bs);
+#else
+ bi_loadsmap(kfp);
#endif
size = md_copymodules(0, is64); /* Find the size of the modules */
diff --git a/stand/kboot/Makefile b/stand/kboot/Makefile
--- a/stand/kboot/Makefile
+++ b/stand/kboot/Makefile
@@ -20,6 +20,7 @@
# Architecture-specific loader code
SRCS= \
+ bootinfo.c \
conf.c \
crt1.c \
gfx_fb_stub.c \
@@ -45,6 +46,9 @@
.include "${BOOTSRC}/fdt.mk"
+# We share bootinfo.c with efi
+.PATH: ${BOOTSRC}/efi/loader
+
# Note: Since we're producing a userland binary, we key off of MACHINE_ARCH
# instead of the more normal MACHINE since the changes between different flavors
# of MACHINE_ARCH are large enough in Linux that it's easier that way.
diff --git a/stand/kboot/bootinfo.c b/stand/kboot/bootinfo.c
deleted file mode 100644
--- a/stand/kboot/bootinfo.c
+++ /dev/null
@@ -1,467 +0,0 @@
-/*-
- * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
- * Copyright (c) 2004, 2006 Marcel Moolenaar
- * Copyright (c) 2014 The FreeBSD Foundation
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <stand.h>
-#include <string.h>
-#include <sys/param.h>
-#include <sys/linker.h>
-#include <sys/reboot.h>
-#include <sys/boot.h>
-#include <machine/cpufunc.h>
-#include <machine/elf.h>
-#include <machine/metadata.h>
-#include <machine/psl.h>
-
-#ifdef EFI
-#include <efi.h>
-#include <efilib.h>
-#endif
-
-#include "bootstrap.h"
-#include "modinfo.h"
-
-#if defined(__amd64__)
-#include <machine/specialreg.h>
-#endif
-
-#ifdef EFI
-#include "loader_efi.h"
-#include "gfx_fb.h"
-#endif
-
-#if defined(LOADER_FDT_SUPPORT)
-#include <fdt_platform.h>
-#endif
-
-#ifdef LOADER_GELI_SUPPORT
-#include "geliboot.h"
-#endif
-
-int bi_load(char *args, vm_offset_t *modulep, vm_offset_t *kernendp,
- bool exit_bs);
-#ifndef EFI
-void bi_loadsmap(struct preloaded_file *kfp);
-#endif
-
-static int
-bi_getboothowto(char *kargs)
-{
-#ifdef EFI
- const char *sw, *tmp;
- char *opts;
- int speed, port;
- char buf[50];
-#endif
- char *console;
- int howto;
-
- howto = boot_parse_cmdline(kargs);
- howto |= boot_env_to_howto();
-
- console = getenv("console");
- if (console != NULL) {
- if (strcmp(console, "comconsole") == 0)
- howto |= RB_SERIAL;
- if (strcmp(console, "nullconsole") == 0)
- howto |= RB_MUTE;
-#ifdef EFI
-#if defined(__i386__) || defined(__amd64__)
- if (strcmp(console, "efi") == 0 &&
- getenv("efi_8250_uid") != NULL &&
- getenv("hw.uart.console") == NULL) {
- /*
- * If we found a 8250 com port and com speed, we need to
- * tell the kernel where the serial port is, and how
- * fast. Ideally, we'd get the port from ACPI, but that
- * isn't running in the loader. Do the next best thing
- * by allowing it to be set by a loader.conf variable,
- * either a EFI specific one, or the compatible
- * comconsole_port if not. PCI support is needed, but
- * for that we'd ideally refactor the
- * libi386/comconsole.c code to have identical behavior.
- * We only try to set the port for cases where we saw
- * the Serial(x) node when parsing, otherwise
- * specialized hardware that has Uart nodes will have a
- * bogus address set.
- * But if someone specifically setup hw.uart.console,
- * don't override that.
- */
- speed = -1;
- port = -1;
- tmp = getenv("efi_com_speed");
- if (tmp != NULL)
- speed = strtol(tmp, NULL, 0);
- tmp = getenv("efi_com_port");
- if (tmp == NULL)
- tmp = getenv("comconsole_port");
- if (tmp != NULL)
- port = strtol(tmp, NULL, 0);
- if (speed != -1 && port != -1) {
- snprintf(buf, sizeof(buf), "io:%d,br:%d", port,
- speed);
- env_setenv("hw.uart.console", EV_VOLATILE, buf,
- NULL, NULL);
- }
- }
-#endif
-#endif
- }
-
- return (howto);
-}
-
-#ifdef EFI
-static EFI_STATUS
-efi_do_vmap(EFI_MEMORY_DESCRIPTOR *mm, UINTN sz, UINTN mmsz, UINT32 mmver)
-{
- EFI_MEMORY_DESCRIPTOR *desc, *viter, *vmap;
- EFI_STATUS ret;
- int curr, ndesc, nset;
-
- nset = 0;
- desc = mm;
- ndesc = sz / mmsz;
- vmap = malloc(sz);
- if (vmap == NULL)
- /* This isn't really an EFI error case, but pretend it is */
- return (EFI_OUT_OF_RESOURCES);
- viter = vmap;
- for (curr = 0; curr < ndesc;
- curr++, desc = NextMemoryDescriptor(desc, mmsz)) {
- if ((desc->Attribute & EFI_MEMORY_RUNTIME) != 0) {
- ++nset;
- desc->VirtualStart = desc->PhysicalStart;
- *viter = *desc;
- viter = NextMemoryDescriptor(viter, mmsz);
- }
- }
- ret = RS->SetVirtualAddressMap(nset * mmsz, mmsz, mmver, vmap);
- free(vmap);
- return (ret);
-}
-
-static int
-bi_load_efi_data(struct preloaded_file *kfp, bool exit_bs)
-{
- EFI_MEMORY_DESCRIPTOR *mm;
- EFI_PHYSICAL_ADDRESS addr = 0;
- EFI_STATUS status;
- const char *efi_novmap;
- size_t efisz;
- UINTN efi_mapkey;
- UINTN dsz, pages, retry, sz;
- UINT32 mmver;
- struct efi_map_header *efihdr;
- bool do_vmap;
-
-#if defined(__amd64__) || defined(__aarch64__)
- struct efi_fb efifb;
-
- efifb.fb_addr = gfx_state.tg_fb.fb_addr;
- efifb.fb_size = gfx_state.tg_fb.fb_size;
- efifb.fb_height = gfx_state.tg_fb.fb_height;
- efifb.fb_width = gfx_state.tg_fb.fb_width;
- efifb.fb_stride = gfx_state.tg_fb.fb_stride;
- efifb.fb_mask_red = gfx_state.tg_fb.fb_mask_red;
- efifb.fb_mask_green = gfx_state.tg_fb.fb_mask_green;
- efifb.fb_mask_blue = gfx_state.tg_fb.fb_mask_blue;
- efifb.fb_mask_reserved = gfx_state.tg_fb.fb_mask_reserved;
-
- printf("EFI framebuffer information:\n");
- printf("addr, size 0x%jx, 0x%jx\n", efifb.fb_addr, efifb.fb_size);
- printf("dimensions %d x %d\n", efifb.fb_width, efifb.fb_height);
- printf("stride %d\n", efifb.fb_stride);
- printf("masks 0x%08x, 0x%08x, 0x%08x, 0x%08x\n",
- efifb.fb_mask_red, efifb.fb_mask_green, efifb.fb_mask_blue,
- efifb.fb_mask_reserved);
-
- if (efifb.fb_addr != 0)
- file_addmetadata(kfp, MODINFOMD_EFI_FB, sizeof(efifb), &efifb);
-#endif
-
- do_vmap = true;
- efi_novmap = getenv("efi_disable_vmap");
- if (efi_novmap != NULL)
- do_vmap = strcasecmp(efi_novmap, "YES") != 0;
-
- efisz = (sizeof(struct efi_map_header) + 0xf) & ~0xf;
-
- /*
- * Assign size of EFI_MEMORY_DESCRIPTOR to keep compatible with
- * u-boot which doesn't fill this value when buffer for memory
- * descriptors is too small (eg. 0 to obtain memory map size)
- */
- dsz = sizeof(EFI_MEMORY_DESCRIPTOR);
-
- /*
- * Allocate enough pages to hold the bootinfo block and the
- * memory map EFI will return to us. The memory map has an
- * unknown size, so we have to determine that first. Note that
- * the AllocatePages call can itself modify the memory map, so
- * we have to take that into account as well. The changes to
- * the memory map are caused by splitting a range of free
- * memory into two, so that one is marked as being loader
- * data.
- */
-
- sz = 0;
- mm = NULL;
-
- /*
- * Matthew Garrett has observed at least one system changing the
- * memory map when calling ExitBootServices, causing it to return an
- * error, probably because callbacks are allocating memory.
- * So we need to retry calling it at least once.
- */
- for (retry = 2; retry > 0; retry--) {
- for (;;) {
- status = BS->GetMemoryMap(&sz, mm, &efi_mapkey, &dsz, &mmver);
- if (!EFI_ERROR(status))
- break;
-
- if (status != EFI_BUFFER_TOO_SMALL) {
- printf("%s: GetMemoryMap error %lu\n", __func__,
- EFI_ERROR_CODE(status));
- return (EINVAL);
- }
-
- if (addr != 0)
- BS->FreePages(addr, pages);
-
- /* Add 10 descriptors to the size to allow for
- * fragmentation caused by calling AllocatePages */
- sz += (10 * dsz);
- pages = EFI_SIZE_TO_PAGES(sz + efisz);
- status = BS->AllocatePages(AllocateAnyPages, EfiLoaderData,
- pages, &addr);
- if (EFI_ERROR(status)) {
- printf("%s: AllocatePages error %lu\n", __func__,
- EFI_ERROR_CODE(status));
- return (ENOMEM);
- }
-
- /*
- * Read the memory map and stash it after bootinfo. Align the
- * memory map on a 16-byte boundary (the bootinfo block is page
- * aligned).
- */
- efihdr = (struct efi_map_header *)(uintptr_t)addr;
- mm = (void *)((uint8_t *)efihdr + efisz);
- sz = (EFI_PAGE_SIZE * pages) - efisz;
- }
-
- if (!exit_bs)
- break;
- status = efi_exit_boot_services(efi_mapkey);
- if (!EFI_ERROR(status))
- break;
- }
-
- if (retry == 0) {
- BS->FreePages(addr, pages);
- printf("ExitBootServices error %lu\n", EFI_ERROR_CODE(status));
- return (EINVAL);
- }
-
- /*
- * This may be disabled by setting efi_disable_vmap in
- * loader.conf(5). By default we will setup the virtual
- * map entries.
- */
-
- if (do_vmap)
- efi_do_vmap(mm, sz, dsz, mmver);
- efihdr->memory_size = sz;
- efihdr->descriptor_size = dsz;
- efihdr->descriptor_version = mmver;
- file_addmetadata(kfp, MODINFOMD_EFI_MAP, efisz + sz,
- efihdr);
-
- return (0);
-}
-#endif
-
-/*
- * Load the information expected by an amd64 kernel.
- *
- * - The 'boothowto' argument is constructed.
- * - The 'bootdev' argument is constructed.
- * - The 'bootinfo' struct is constructed, and copied into the kernel space.
- * - The kernel environment is copied into kernel space.
- * - Module metadata are formatted and placed in kernel space.
- */
-int
-bi_load(char *args, vm_offset_t *modulep, vm_offset_t *kernendp, bool exit_bs)
-{
- struct preloaded_file *xp, *kfp;
- struct devdesc *rootdev;
- struct file_metadata *md;
- vm_offset_t addr;
- uint64_t kernend, module;
- uint64_t envp;
- vm_offset_t size;
- char *rootdevname;
- int howto;
- bool is64 = sizeof(long) == 8;
-#if defined(LOADER_FDT_SUPPORT)
- vm_offset_t dtbp;
- int dtb_size;
-#endif
-#if defined(__arm__)
- vm_offset_t vaddr;
- size_t i;
- /*
- * These metadata addreses must be converted for kernel after
- * relocation.
- */
- uint32_t mdt[] = {
- MODINFOMD_SSYM, MODINFOMD_ESYM, MODINFOMD_KERNEND,
- MODINFOMD_ENVP, MODINFOMD_FONT,
-#if defined(LOADER_FDT_SUPPORT)
- MODINFOMD_DTBP
-#endif
- };
-#endif
-
- howto = bi_getboothowto(args);
-
- /*
- * Allow the environment variable 'rootdev' to override the supplied
- * device. This should perhaps go to MI code and/or have $rootdev
- * tested/set by MI code before launching the kernel.
- */
- rootdevname = getenv("rootdev");
- archsw.arch_getdev((void**)(&rootdev), rootdevname, NULL);
- if (rootdev == NULL) {
- printf("Can't determine root device.\n");
- return(EINVAL);
- }
-
-#ifdef EFI
- /* Try reading the /etc/fstab file to select the root device */
- getrootmount(devformat(rootdev));
-#endif
-
- addr = 0;
- for (xp = file_findfile(NULL, NULL); xp != NULL; xp = xp->f_next) {
- if (addr < xp->f_addr + xp->f_size)
- addr = xp->f_addr + xp->f_size;
- }
-
- /* Pad to a page boundary. */
- addr = roundup(addr, PAGE_SIZE);
-
- addr = build_font_module(addr);
-
- /* Pad to a page boundary. */
- addr = roundup(addr, PAGE_SIZE);
-
- /* Copy our environment. */
- envp = addr;
- addr = md_copyenv(addr);
-
- /* Pad to a page boundary. */
- addr = roundup(addr, PAGE_SIZE);
-
-#if defined(LOADER_FDT_SUPPORT)
- /* Handle device tree blob */
- dtbp = addr;
- dtb_size = fdt_copy(addr);
-
- /* Pad to a page boundary */
- if (dtb_size)
- addr += roundup(dtb_size, PAGE_SIZE);
-#endif
-
- kfp = file_findfile(NULL, "elf kernel");
- if (kfp == NULL)
- kfp = file_findfile(NULL, "elf64 kernel");
- if (kfp == NULL)
- panic("can't find kernel file");
- kernend = 0; /* fill it in later */
-
- /* Figure out the size and location of the metadata. */
- module = *modulep = addr;
-
- file_addmetadata(kfp, MODINFOMD_HOWTO, sizeof(howto), &howto);
- file_addmetadata(kfp, MODINFOMD_ENVP, sizeof(envp), &envp);
-#if defined(LOADER_FDT_SUPPORT)
- if (dtb_size)
- file_addmetadata(kfp, MODINFOMD_DTBP, sizeof(dtbp), &dtbp);
- else
- printf("WARNING! Trying to fire up the kernel, but no "
- "device tree blob found!\n");
-#endif
- file_addmetadata(kfp, MODINFOMD_KERNEND, sizeof(kernend), &kernend);
-#ifdef MODINFOMD_MODULEP
- file_addmetadata(kfp, MODINFOMD_MODULEP, sizeof(module), &module);
-#endif
-#ifdef EFI
- file_addmetadata(kfp, MODINFOMD_FW_HANDLE, sizeof(ST), &ST);
-#endif
-#ifdef LOADER_GELI_SUPPORT
- geli_export_key_metadata(kfp);
-#endif
-#ifdef EFI
- bi_load_efi_data(kfp, exit_bs);
-#else
- bi_loadsmap(kfp);
-#endif
-
- size = md_copymodules(0, is64); /* Find the size of the modules */
- kernend = roundup(addr + size, PAGE_SIZE);
- *kernendp = kernend;
-
- /* patch MODINFOMD_KERNEND */
- md = file_findmetadata(kfp, MODINFOMD_KERNEND);
- bcopy(&kernend, md->md_data, sizeof kernend);
-
-#if defined(__arm__)
- *modulep -= __elfN(relocation_offset);
-
- /* Do relocation fixup on metadata of each module. */
- for (xp = file_findfile(NULL, NULL); xp != NULL; xp = xp->f_next) {
- for (i = 0; i < nitems(mdt); i++) {
- md = file_findmetadata(xp, mdt[i]);
- if (md) {
- bcopy(md->md_data, &vaddr, sizeof vaddr);
- vaddr -= __elfN(relocation_offset);
- bcopy(&vaddr, md->md_data, sizeof vaddr);
- }
- }
- }
-#endif
-
- /* Copy module list and metadata. */
- (void)md_copymodules(addr, is64);
-
- return (0);
-}

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