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[src/trunk]: src/sys/arch/i386/stand efiboot: Kernel modules are loaded in pr...
details: https://anonhg.NetBSD.org/src/rev/5c63860d0ac7
branches: trunk
changeset: 822300:5c63860d0ac7
user: nonaka <nonaka%NetBSD.org@localhost>
date: Sun Mar 12 05:33:48 2017 +0000
description:
efiboot: Kernel modules are loaded in pre-allocated memory.
diffstat:
sys/arch/i386/stand/efiboot/boot.c | 35 ++++++-
sys/arch/i386/stand/lib/exec.c | 157 ++++++++++++++++++++++++------------
sys/arch/i386/stand/lib/libi386.h | 3 +-
3 files changed, 133 insertions(+), 62 deletions(-)
diffs (truncated from 371 to 300 lines):
diff -r 5730da1ce310 -r 5c63860d0ac7 sys/arch/i386/stand/efiboot/boot.c
--- a/sys/arch/i386/stand/efiboot/boot.c Sun Mar 12 04:19:29 2017 +0000
+++ b/sys/arch/i386/stand/efiboot/boot.c Sun Mar 12 05:33:48 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: boot.c,v 1.3 2017/03/03 09:29:57 nonaka Exp $ */
+/* $NetBSD: boot.c,v 1.4 2017/03/12 05:33:48 nonaka Exp $ */
/*-
* Copyright (c) 2016 Kimihiro Nonaka <nonaka%netbsd.org@localhost>
@@ -31,10 +31,9 @@
#include <sys/bootblock.h>
#include <sys/boot_flag.h>
-#include <lib/libsa/bootcfg.h>
-
-#include <bootmod.h>
-#include <bootmenu.h>
+#include "bootcfg.h"
+#include "bootmod.h"
+#include "bootmenu.h"
#include "devopen.h"
int errno;
@@ -207,16 +206,40 @@
static void
bootit(const char *filename, int howto)
{
+ EFI_STATUS status;
+ EFI_PHYSICAL_ADDRESS bouncebuf;
+ UINTN npages;
+ u_long allocsz;
if (howto & AB_VERBOSE)
printf("booting %s (howto 0x%x)\n", sprint_bootsel(filename),
howto);
- if (exec_netbsd(filename, 0, howto, 0, efi_cleanup) < 0)
+ if (count_netbsd(filename, &allocsz) < 0) {
+ printf("boot: %s: %s\n", sprint_bootsel(filename),
+ strerror(errno));
+ return;
+ }
+
+ bouncebuf = EFI_ALLOCATE_MAX_ADDRESS;
+ npages = EFI_SIZE_TO_PAGES(allocsz);
+ status = uefi_call_wrapper(BS->AllocatePages, 4, AllocateMaxAddress,
+ EfiLoaderData, npages, &bouncebuf);
+ if (EFI_ERROR(status)) {
+ printf("boot: %s: %s\n", sprint_bootsel(filename),
+ strerror(ENOMEM));
+ return;
+ }
+
+ efi_loadaddr = bouncebuf;
+ if (exec_netbsd(filename, bouncebuf, howto, 0, efi_cleanup) < 0)
printf("boot: %s: %s\n", sprint_bootsel(filename),
strerror(errno));
else
printf("boot returned\n");
+
+ (void) uefi_call_wrapper(BS->FreePages, 2, bouncebuf, npages);
+ efi_loadaddr = 0;
}
void
diff -r 5730da1ce310 -r 5c63860d0ac7 sys/arch/i386/stand/lib/exec.c
--- a/sys/arch/i386/stand/lib/exec.c Sun Mar 12 04:19:29 2017 +0000
+++ b/sys/arch/i386/stand/lib/exec.c Sun Mar 12 05:33:48 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: exec.c,v 1.66 2017/02/23 12:14:53 nonaka Exp $ */
+/* $NetBSD: exec.c,v 1.67 2017/03/12 05:33:48 nonaka Exp $ */
/*
* Copyright (c) 2008, 2009 The NetBSD Foundation, Inc.
@@ -151,6 +151,11 @@
static void userconf_init(void);
+static void extract_device(const char *, char *, size_t);
+static void module_base_path(char *, size_t);
+static int module_open(boot_module_t *, int, const char *, const char *,
+ bool);
+
void
framebuffer_configure(struct btinfo_framebuffer *fb)
{
@@ -196,6 +201,10 @@
while (*name == ' ' || *name == '\t')
++name;
+ for (bm = boot_modules; bm != NULL; bm = bm->bm_next)
+ if (bm->bm_type == type && strcmp(bm->bm_path, name) == 0)
+ return;
+
bm = alloc(sizeof(boot_module_t));
len = strlen(name) + 1;
str = alloc(len);
@@ -299,30 +308,6 @@
return ENOMEM;
}
#endif
-#ifdef EFIBOOT
- {
- EFI_STATUS status;
- EFI_PHYSICAL_ADDRESS addr;
- UINTN kernsize;
-
- marks[MARK_START] = loadaddr;
- if ((fd = loadfile(file, marks, COUNT_KERNEL)) == -1)
- return EIO;
- close(fd);
-
- /* Allocate temporary arena. */
- addr = EFI_ALLOCATE_MAX_ADDRESS;
- kernsize = marks[MARK_END] - loadaddr;
- kernsize = EFI_SIZE_TO_PAGES(kernsize);
- status = uefi_call_wrapper(BS->AllocatePages, 4,
- AllocateMaxAddress, EfiLoaderData, kernsize, &addr);
- if (EFI_ERROR(status))
- return ENOMEM;
- efi_loadaddr = loadaddr = addr;
-
- memset(marks, 0, sizeof(marks[0]) * MARK_MAX);
- }
-#endif
marks[MARK_START] = loadaddr;
if ((fd = loadfile(file, marks,
LOAD_KERNEL & ~(floppy ? LOAD_BACKWARDS : 0))) == -1)
@@ -360,15 +345,6 @@
ppbcopy(loadaddr, origaddr, marks[MARK_END]);
}
#endif
-#ifdef EFIBOOT
- marks[MARK_START] -= loadaddr;
- marks[MARK_ENTRY] -= loadaddr;
- marks[MARK_DATA] -= loadaddr;
- /* MARK_NSYM */
- marks[MARK_SYM] -= loadaddr;
- marks[MARK_END] -= loadaddr;
- /* Copy the kernel to original load address later. */
-#endif
marks[MARK_END] = (((u_long) marks[MARK_END] + sizeof(int) - 1)) &
(-sizeof(int));
image_end = marks[MARK_END];
@@ -410,6 +386,15 @@
errno = error;
goto out;
}
+#ifdef EFIBOOT
+ /* adjust to the real load address */
+ marks[MARK_START] -= efi_loadaddr;
+ marks[MARK_ENTRY] -= efi_loadaddr;
+ marks[MARK_DATA] -= efi_loadaddr;
+ /* MARK_NSYM */
+ marks[MARK_SYM] -= efi_loadaddr;
+ marks[MARK_END] -= efi_loadaddr;
+#endif
boot_argv[0] = boothowto;
boot_argv[1] = 0;
@@ -422,6 +407,14 @@
if (boot_modules_enabled) {
module_init(file);
if (btinfo_modulelist) {
+#ifdef EFIBOOT
+ /* convert module loaded address to paddr */
+ struct bi_modulelist_entry *bim;
+ bim = (void *)(btinfo_modulelist + 1);
+ for (i = 0; i < btinfo_modulelist->num; i++, bim++)
+ bim->base -= efi_loadaddr;
+ btinfo_modulelist->endpa -= efi_loadaddr;
+#endif
BI_ADD(btinfo_modulelist, BTINFO_MODULELIST,
btinfo_modulelist_size);
}
@@ -459,7 +452,7 @@
}
efi_kernel_start = marks[MARK_START];
- efi_kernel_size = marks[MARK_END] - efi_kernel_start;
+ efi_kernel_size = image_end - efi_loadaddr - efi_kernel_start;
#endif
startprog(marks[MARK_ENTRY], BOOT_NARGS, boot_argv,
x86_trunc_page(basemem * 1024));
@@ -471,6 +464,53 @@
return -1;
}
+int
+count_netbsd(const char *file, u_long *rsz)
+{
+ u_long marks[MARK_MAX];
+ char kdev[64];
+ char base_path[64];
+ struct stat st;
+ boot_module_t *bm;
+ u_long sz;
+ int err, fd;
+
+ memset(marks, 0, sizeof(marks));
+ if ((fd = loadfile(file, marks, COUNT_KERNEL)) == -1)
+ return -1;
+ close(fd);
+ marks[MARK_END] = (((u_long) marks[MARK_END] + sizeof(int) - 1)) &
+ (-sizeof(int));
+ sz = marks[MARK_END];
+
+ /* The modules must be allocated after the kernel */
+ if (boot_modules_enabled) {
+ extract_device(file, kdev, sizeof(kdev));
+ module_base_path(base_path, sizeof(base_path));
+
+ /* If the root fs type is unusual, load its module. */
+ if (fsmod != NULL)
+ module_add(__UNCONST(fsmod));
+
+ for (bm = boot_modules; bm; bm = bm->bm_next) {
+ fd = module_open(bm, 0, kdev, base_path, false);
+ if (fd == -1)
+ continue;
+ sz = (image_end + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1);
+ err = fstat(fd, &st);
+ if (err == -1 || st.st_size == -1) {
+ close(fd);
+ continue;
+ }
+ sz += st.st_size;
+ close(fd);
+ }
+ }
+
+ *rsz = sz;
+ return 0;
+}
+
static void
extract_device(const char *path, char *buf, size_t buflen)
{
@@ -486,7 +526,7 @@
}
static const char *
-module_path(boot_module_t *bm, const char *kdev)
+module_path(boot_module_t *bm, const char *kdev, const char *base_path)
{
static char buf[256];
char name_buf[256], dev_buf[64];
@@ -510,7 +550,7 @@
p++;
extract_device(name, dev_buf, sizeof(dev_buf));
snprintf(buf, sizeof(buf), "%s%s/%s/%s.kmod",
- dev_buf, module_base, p, p);
+ dev_buf, base_path, p, p);
}
} else {
/* device not specified; load from kernel device if known */
@@ -518,20 +558,21 @@
snprintf(buf, sizeof(buf), "%s%s", kdev, name);
else
snprintf(buf, sizeof(buf), "%s%s/%s/%s.kmod",
- kdev, module_base, name, name);
+ kdev, base_path, name, name);
}
return buf;
}
static int
-module_open(boot_module_t *bm, int mode, const char *kdev, bool doload)
+module_open(boot_module_t *bm, int mode, const char *kdev,
+ const char *base_path, bool doload)
{
int fd;
const char *path;
/* check the expanded path first */
- path = module_path(bm, kdev);
+ path = module_path(bm, kdev, base_path);
fd = open(path, mode);
if (fd != -1) {
if ((howto & AB_SILENT) == 0 && doload)
@@ -552,19 +593,9 @@
}
static void
-module_init(const char *kernel_path)
+module_base_path(char *buf, size_t bufsize)
{
- struct bi_modulelist_entry *bi;
- struct stat st;
const char *machine;
- char kdev[64];
- char *buf;
- boot_module_t *bm;
- ssize_t len;
- off_t off;
- int err, fd, nfail = 0;
-
- extract_device(kernel_path, kdev, sizeof(kdev));
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