mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 11:44:01 +08:00
x86: unify crashkernel reservation for 32 and 64 bit
This patch moves the reserve_crashkernel() to setup.c and removes the architecture-specific version. Both versions were more or less the same. I tested it on both x86-64 and i386, with CONFIG_KEXEC on and off (so that it compiles). Signed-off-by: Bernhard Walle <bwalle@suse.de> Cc: yhlu.kernel@gmail.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
parent
6236af82d8
commit
1ecd27657b
@ -3,6 +3,7 @@
|
|||||||
#include <linux/init.h>
|
#include <linux/init.h>
|
||||||
#include <linux/bootmem.h>
|
#include <linux/bootmem.h>
|
||||||
#include <linux/percpu.h>
|
#include <linux/percpu.h>
|
||||||
|
#include <linux/kexec.h>
|
||||||
#include <asm/smp.h>
|
#include <asm/smp.h>
|
||||||
#include <asm/percpu.h>
|
#include <asm/percpu.h>
|
||||||
#include <asm/sections.h>
|
#include <asm/sections.h>
|
||||||
@ -11,6 +12,7 @@
|
|||||||
#include <asm/topology.h>
|
#include <asm/topology.h>
|
||||||
#include <asm/mpspec.h>
|
#include <asm/mpspec.h>
|
||||||
#include <asm/apicdef.h>
|
#include <asm/apicdef.h>
|
||||||
|
#include <asm/highmem.h>
|
||||||
|
|
||||||
#ifdef CONFIG_X86_LOCAL_APIC
|
#ifdef CONFIG_X86_LOCAL_APIC
|
||||||
unsigned int num_processors;
|
unsigned int num_processors;
|
||||||
@ -404,3 +406,62 @@ EXPORT_SYMBOL(node_to_cpumask);
|
|||||||
#endif /* CONFIG_DEBUG_PER_CPU_MAPS */
|
#endif /* CONFIG_DEBUG_PER_CPU_MAPS */
|
||||||
|
|
||||||
#endif /* X86_64_NUMA */
|
#endif /* X86_64_NUMA */
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* --------- Crashkernel reservation ------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
static inline unsigned long long get_total_mem(void)
|
||||||
|
{
|
||||||
|
unsigned long long total;
|
||||||
|
|
||||||
|
total = max_low_pfn - min_low_pfn;
|
||||||
|
#ifdef CONFIG_HIGHMEM
|
||||||
|
total += highend_pfn - highstart_pfn;
|
||||||
|
#endif
|
||||||
|
|
||||||
|
return total << PAGE_SHIFT;
|
||||||
|
}
|
||||||
|
|
||||||
|
#ifdef CONFIG_KEXEC
|
||||||
|
void __init reserve_crashkernel(void)
|
||||||
|
{
|
||||||
|
unsigned long long total_mem;
|
||||||
|
unsigned long long crash_size, crash_base;
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
total_mem = get_total_mem();
|
||||||
|
|
||||||
|
ret = parse_crashkernel(boot_command_line, total_mem,
|
||||||
|
&crash_size, &crash_base);
|
||||||
|
if (ret == 0 && crash_size > 0) {
|
||||||
|
if (crash_base <= 0) {
|
||||||
|
printk(KERN_INFO "crashkernel reservation failed - "
|
||||||
|
"you have to specify a base address\n");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (reserve_bootmem_generic(crash_base, crash_size,
|
||||||
|
BOOTMEM_EXCLUSIVE) < 0) {
|
||||||
|
printk(KERN_INFO "crashkernel reservation failed - "
|
||||||
|
"memory is in use\n");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
|
||||||
|
"for crashkernel (System RAM: %ldMB)\n",
|
||||||
|
(unsigned long)(crash_size >> 20),
|
||||||
|
(unsigned long)(crash_base >> 20),
|
||||||
|
(unsigned long)(total_mem >> 20));
|
||||||
|
|
||||||
|
crashk_res.start = crash_base;
|
||||||
|
crashk_res.end = crash_base + crash_size - 1;
|
||||||
|
insert_resource(&iomem_resource, &crashk_res);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
#else
|
||||||
|
void __init reserve_crashkernel(void)
|
||||||
|
{}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
@ -429,59 +429,6 @@ extern unsigned long __init setup_memory(void);
|
|||||||
extern void zone_sizes_init(void);
|
extern void zone_sizes_init(void);
|
||||||
#endif /* !CONFIG_NEED_MULTIPLE_NODES */
|
#endif /* !CONFIG_NEED_MULTIPLE_NODES */
|
||||||
|
|
||||||
static inline unsigned long long get_total_mem(void)
|
|
||||||
{
|
|
||||||
unsigned long long total;
|
|
||||||
|
|
||||||
total = max_low_pfn - min_low_pfn;
|
|
||||||
#ifdef CONFIG_HIGHMEM
|
|
||||||
total += highend_pfn - highstart_pfn;
|
|
||||||
#endif
|
|
||||||
|
|
||||||
return total << PAGE_SHIFT;
|
|
||||||
}
|
|
||||||
|
|
||||||
#ifdef CONFIG_KEXEC
|
|
||||||
static void __init reserve_crashkernel(void)
|
|
||||||
{
|
|
||||||
unsigned long long total_mem;
|
|
||||||
unsigned long long crash_size, crash_base;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
total_mem = get_total_mem();
|
|
||||||
|
|
||||||
ret = parse_crashkernel(boot_command_line, total_mem,
|
|
||||||
&crash_size, &crash_base);
|
|
||||||
if (ret == 0 && crash_size > 0) {
|
|
||||||
if (crash_base <= 0) {
|
|
||||||
printk(KERN_INFO "crashkernel reservation failed - "
|
|
||||||
"you have to specify a base address\n");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (reserve_bootmem_generic(crash_base, crash_size,
|
|
||||||
BOOTMEM_EXCLUSIVE) < 0) {
|
|
||||||
printk(KERN_INFO "crashkernel reservation failed - "
|
|
||||||
"memory is in use\n");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
|
|
||||||
"for crashkernel (System RAM: %ldMB)\n",
|
|
||||||
(unsigned long)(crash_size >> 20),
|
|
||||||
(unsigned long)(crash_base >> 20),
|
|
||||||
(unsigned long)(total_mem >> 20));
|
|
||||||
|
|
||||||
crashk_res.start = crash_base;
|
|
||||||
crashk_res.end = crash_base + crash_size - 1;
|
|
||||||
insert_resource(&iomem_resource, &crashk_res);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
#else
|
|
||||||
static inline void __init reserve_crashkernel(void)
|
|
||||||
{}
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#ifdef CONFIG_BLK_DEV_INITRD
|
#ifdef CONFIG_BLK_DEV_INITRD
|
||||||
|
|
||||||
static bool do_relocate_initrd = false;
|
static bool do_relocate_initrd = false;
|
||||||
|
@ -228,46 +228,6 @@ static inline void copy_edd(void)
|
|||||||
}
|
}
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
#ifdef CONFIG_KEXEC
|
|
||||||
static void __init reserve_crashkernel(void)
|
|
||||||
{
|
|
||||||
unsigned long long total_mem;
|
|
||||||
unsigned long long crash_size, crash_base;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
total_mem = ((unsigned long long)max_low_pfn - min_low_pfn) << PAGE_SHIFT;
|
|
||||||
|
|
||||||
ret = parse_crashkernel(boot_command_line, total_mem,
|
|
||||||
&crash_size, &crash_base);
|
|
||||||
if (ret == 0 && crash_size) {
|
|
||||||
if (crash_base <= 0) {
|
|
||||||
printk(KERN_INFO "crashkernel reservation failed - "
|
|
||||||
"you have to specify a base address\n");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (reserve_bootmem_generic(crash_base, crash_size,
|
|
||||||
BOOTMEM_EXCLUSIVE) < 0) {
|
|
||||||
printk(KERN_INFO "crashkernel reservation failed - "
|
|
||||||
"memory is in use\n");
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
|
|
||||||
"for crashkernel (System RAM: %ldMB)\n",
|
|
||||||
(unsigned long)(crash_size >> 20),
|
|
||||||
(unsigned long)(crash_base >> 20),
|
|
||||||
(unsigned long)(total_mem >> 20));
|
|
||||||
crashk_res.start = crash_base;
|
|
||||||
crashk_res.end = crash_base + crash_size - 1;
|
|
||||||
insert_resource(&iomem_resource, &crashk_res);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
#else
|
|
||||||
static inline void __init reserve_crashkernel(void)
|
|
||||||
{}
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* setup_arch - architecture-specific boot-time initializations
|
* setup_arch - architecture-specific boot-time initializations
|
||||||
*
|
*
|
||||||
|
@ -8,6 +8,9 @@
|
|||||||
/* Interrupt control for vSMPowered x86_64 systems */
|
/* Interrupt control for vSMPowered x86_64 systems */
|
||||||
void vsmp_init(void);
|
void vsmp_init(void);
|
||||||
|
|
||||||
|
/* Crashkernel reservation */
|
||||||
|
void reserve_crashkernel(void);
|
||||||
|
|
||||||
#ifndef CONFIG_PARAVIRT
|
#ifndef CONFIG_PARAVIRT
|
||||||
#define paravirt_post_allocator_init() do {} while (0)
|
#define paravirt_post_allocator_init() do {} while (0)
|
||||||
#endif
|
#endif
|
||||||
|
Loading…
Reference in New Issue
Block a user