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Diffstat (limited to 'include/linux/kexec.h')
-rw-r--r--include/linux/kexec.h46
1 files changed, 44 insertions, 2 deletions
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index e8acb2b43..d7437777b 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -14,6 +14,8 @@
#if !defined(__ASSEMBLY__)
+#include <asm/io.h>
+
#include <uapi/linux/kexec.h>
#ifdef CONFIG_KEXEC_CORE
@@ -41,7 +43,7 @@
#endif
#ifndef KEXEC_CONTROL_MEMORY_GFP
-#define KEXEC_CONTROL_MEMORY_GFP GFP_KERNEL
+#define KEXEC_CONTROL_MEMORY_GFP (GFP_KERNEL | __GFP_NORETRY)
#endif
#ifndef KEXEC_CONTROL_PAGE_SIZE
@@ -228,12 +230,13 @@ extern void *kexec_purgatory_get_symbol_addr(struct kimage *image,
extern void __crash_kexec(struct pt_regs *);
extern void crash_kexec(struct pt_regs *);
int kexec_should_crash(struct task_struct *);
+int kexec_crash_loaded(void);
void crash_save_cpu(struct pt_regs *regs, int cpu);
void crash_save_vmcoreinfo(void);
void arch_crash_save_vmcoreinfo(void);
__printf(1, 2)
void vmcoreinfo_append_str(const char *fmt, ...);
-unsigned long paddr_vmcoreinfo_note(void);
+phys_addr_t paddr_vmcoreinfo_note(void);
#define VMCOREINFO_OSRELEASE(value) \
vmcoreinfo_append_str("OSRELEASE=%s\n", value)
@@ -318,12 +321,51 @@ int __weak arch_kexec_apply_relocations(const Elf_Ehdr *ehdr, Elf_Shdr *sechdrs,
void arch_kexec_protect_crashkres(void);
void arch_kexec_unprotect_crashkres(void);
+#ifndef page_to_boot_pfn
+static inline unsigned long page_to_boot_pfn(struct page *page)
+{
+ return page_to_pfn(page);
+}
+#endif
+
+#ifndef boot_pfn_to_page
+static inline struct page *boot_pfn_to_page(unsigned long boot_pfn)
+{
+ return pfn_to_page(boot_pfn);
+}
+#endif
+
+#ifndef phys_to_boot_phys
+static inline unsigned long phys_to_boot_phys(phys_addr_t phys)
+{
+ return phys;
+}
+#endif
+
+#ifndef boot_phys_to_phys
+static inline phys_addr_t boot_phys_to_phys(unsigned long boot_phys)
+{
+ return boot_phys;
+}
+#endif
+
+static inline unsigned long virt_to_boot_phys(void *addr)
+{
+ return phys_to_boot_phys(__pa((unsigned long)addr));
+}
+
+static inline void *boot_phys_to_virt(unsigned long entry)
+{
+ return phys_to_virt(boot_phys_to_phys(entry));
+}
+
#else /* !CONFIG_KEXEC_CORE */
struct pt_regs;
struct task_struct;
static inline void __crash_kexec(struct pt_regs *regs) { }
static inline void crash_kexec(struct pt_regs *regs) { }
static inline int kexec_should_crash(struct task_struct *p) { return 0; }
+static inline int kexec_crash_loaded(void) { return 0; }
#define kexec_in_progress false
#endif /* CONFIG_KEXEC_CORE */