Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / include / asm-x86_64 / kexec.h

diff --git a/include/asm-x86_64/kexec.h b/include/asm-x86_64/kexec.h
index b0531c5..c564bae 100644 (file)
--- a/include/asm-x86_64/kexec.h
+++ b/include/asm-x86_64/kexec.h
@@ -1,8 +1,10 @@
 #ifndef _X86_64_KEXEC_H
 #define _X86_64_KEXEC_H
 
+#include <linux/string.h>
+
 #include <asm/page.h>
-#include <asm/proto.h>
+#include <asm/ptrace.h>
 
 /*
  * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return.
@@ -22,4 +24,44 @@
 /* Allocate one page for the pdp and the second for the code */
 #define KEXEC_CONTROL_CODE_SIZE  (4096UL + 4096UL)
 
+/* The native architecture */
+#define KEXEC_ARCH KEXEC_ARCH_X86_64
+
+#define MAX_NOTE_BYTES 1024
+
+/*
+ * Saving the registers of the cpu on which panic occured in
+ * crash_kexec to save a valid sp. The registers of other cpus
+ * will be saved in machine_crash_shutdown while shooting down them.
+ */
+
+static inline void crash_setup_regs(struct pt_regs *newregs,
+                                               struct pt_regs *oldregs)
+{
+       if (oldregs)
+               memcpy(newregs, oldregs, sizeof(*newregs));
+       else {
+               __asm__ __volatile__("movq %%rbx,%0" : "=m"(newregs->rbx));
+               __asm__ __volatile__("movq %%rcx,%0" : "=m"(newregs->rcx));
+               __asm__ __volatile__("movq %%rdx,%0" : "=m"(newregs->rdx));
+               __asm__ __volatile__("movq %%rsi,%0" : "=m"(newregs->rsi));
+               __asm__ __volatile__("movq %%rdi,%0" : "=m"(newregs->rdi));
+               __asm__ __volatile__("movq %%rbp,%0" : "=m"(newregs->rbp));
+               __asm__ __volatile__("movq %%rax,%0" : "=m"(newregs->rax));
+               __asm__ __volatile__("movq %%rsp,%0" : "=m"(newregs->rsp));
+               __asm__ __volatile__("movq %%r8,%0" : "=m"(newregs->r8));
+               __asm__ __volatile__("movq %%r9,%0" : "=m"(newregs->r9));
+               __asm__ __volatile__("movq %%r10,%0" : "=m"(newregs->r10));
+               __asm__ __volatile__("movq %%r11,%0" : "=m"(newregs->r11));
+               __asm__ __volatile__("movq %%r12,%0" : "=m"(newregs->r12));
+               __asm__ __volatile__("movq %%r13,%0" : "=m"(newregs->r13));
+               __asm__ __volatile__("movq %%r14,%0" : "=m"(newregs->r14));
+               __asm__ __volatile__("movq %%r15,%0" : "=m"(newregs->r15));
+               __asm__ __volatile__("movl %%ss, %%eax;" :"=a"(newregs->ss));
+               __asm__ __volatile__("movl %%cs, %%eax;" :"=a"(newregs->cs));
+               __asm__ __volatile__("pushfq; popq %0" :"=m"(newregs->eflags));
+
+               newregs->rip = (unsigned long)current_text_addr();
+       }
+}
 #endif /* _X86_64_KEXEC_H */