We could put ramdisk/cmdline above for bzImage on 64bit for protocol 2.12.
-v2: change ext_... handling to way that eric like.
Signed-off-by: Yinghai Lu <ying...@kernel.org>
---
kexec/arch/i386/x86-linux-setup.c | 36 +++++++++++++++++++++++++++---------
kexec/arch/i386/x86-linux-setup.h | 15 +++++++++++++--
2 files changed, 40 insertions(+), 11 deletions(-)
diff --git a/kexec/arch/i386/x86-linux-setup.c
b/kexec/arch/i386/x86-linux-setup.c
index d09c6ce..e0ddc84 100644
--- a/kexec/arch/i386/x86-linux-setup.c
+++ b/kexec/arch/i386/x86-linux-setup.c
@@ -46,11 +46,11 @@ void init_linux_parameters(struct x86_linux_param_header
*real_mode)
real_mode->cmdline_size = COMMAND_LINE_SIZE;
}
-void setup_linux_bootloader_parameters(
+void setup_linux_bootloader_parameters_high(
struct kexec_info *info, struct x86_linux_param_header *real_mode,
unsigned long real_mode_base, unsigned long cmdline_offset,
const char *cmdline, off_t cmdline_len,
- const char *initrd_buf, off_t initrd_size)
+ const char *initrd_buf, off_t initrd_size, int initrd_high)
{
char *cmdline_ptr;
unsigned long initrd_base, initrd_addr_max;
@@ -62,10 +62,15 @@ void setup_linux_bootloader_parameters(
real_mode->loader_flags = 0;
/* Find the maximum initial ramdisk address */
- initrd_addr_max = DEFAULT_INITRD_ADDR_MAX;
- if (real_mode->protocol_version >= 0x0203) {
- initrd_addr_max = real_mode->initrd_addr_max;
- dbgprintf("initrd_addr_max is 0x%lx\n", initrd_addr_max);
+ if (initrd_high)
+ initrd_addr_max = ULONG_MAX;
+ else {
+ initrd_addr_max = DEFAULT_INITRD_ADDR_MAX;
+ if (real_mode->protocol_version >= 0x0203) {
+ initrd_addr_max = real_mode->initrd_addr_max;
+ dbgprintf("initrd_addr_max is 0x%lx\n",
+ initrd_addr_max);
+ }
}
/* Load the initrd if we have one */
@@ -81,8 +86,16 @@ void setup_linux_bootloader_parameters(
}
/* Ramdisk address and size */
- real_mode->initrd_start = initrd_base;
- real_mode->initrd_size = initrd_size;
+ real_mode->initrd_start = initrd_base & 0xffffffffUL;
+ real_mode->initrd_size = initrd_size & 0xffffffffUL;
+
+ if (real_mode->protocol_version >= 0x020c &&
+ (initrd_base & 0xffffffffUL) != initrd_base)
+ real_mode->ext_ramdisk_image = initrd_base >> 32;
+
+ if (real_mode->protocol_version >= 0x020c &&
+ (initrd_size & 0xffffffffUL) != initrd_size)
+ real_mode->ext_ramdisk_size = initrd_size >> 32;
/* The location of the command line */
/* if (real_mode_base == 0x90000) { */
@@ -91,7 +104,12 @@ void setup_linux_bootloader_parameters(
/* setup_move_size */
/* } */
if (real_mode->protocol_version >= 0x0202) {
- real_mode->cmd_line_ptr = real_mode_base + cmdline_offset;
+ unsigned long cmd_line_ptr = real_mode_base + cmdline_offset;
+
+ real_mode->cmd_line_ptr = cmd_line_ptr & 0xffffffffUL;
+ if ((real_mode->protocol_version >= 0x020c) &&
+ ((cmd_line_ptr & 0xffffffffUL) != cmd_line_ptr))
+ real_mode->ext_cmd_line_ptr = cmd_line_ptr >> 32;
}
/* Fill in the command line */
diff --git a/kexec/arch/i386/x86-linux-setup.h
b/kexec/arch/i386/x86-linux-setup.h
index 96fbd33..09aed4d 100644
--- a/kexec/arch/i386/x86-linux-setup.h
+++ b/kexec/arch/i386/x86-linux-setup.h
@@ -2,11 +2,22 @@
#define X86_LINUX_SETUP_H
void init_linux_parameters(struct x86_linux_param_header *real_mode);
-void setup_linux_bootloader_parameters(
+void setup_linux_bootloader_parameters_high(
struct kexec_info *info, struct x86_linux_param_header *real_mode,
unsigned long real_mode_base, unsigned long cmdline_offset,
const char *cmdline, off_t cmdline_len,
- const char *initrd_buf, off_t initrd_size);
+ const char *initrd_buf, off_t initrd_size, int initrd_high);
+static inline void setup_linux_bootloader_parameters(
+ struct kexec_info *info, struct x86_linux_param_header *real_mode,
+ unsigned long real_mode_base, unsigned long cmdline_offset,
+ const char *cmdline, off_t cmdline_len,
+ const char *initrd_buf, off_t initrd_size)
+{
+ setup_linux_bootloader_parameters_high(info,
+ real_mode, real_mode_base,
+ cmdline_offset, cmdline, cmdline_len,
+ initrd_buf, initrd_size, 0);
+}
void setup_linux_system_parameters(struct kexec_info *info,
struct x86_linux_param_header *real_mode);
--
1.7.10.4
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