x86: Save registers in saved_context during suspend and hibernation

During hibernation and suspend on x86_64 save CPU registers in the saved_context
structure rather than in a handful of separate variables.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 28 insertions, 0 deletions

diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c
index 778953bc636c..7e50bda565b4 100644
--- a/arch/x86/kernel/asm-offsets_64.c
+++ b/arch/x86/kernel/asm-offsets_64.c
@@ -76,6 +76,34 @@ int main(void)
         DEFINE(pbe_orig_address, offsetof(struct pbe, orig_address));
         DEFINE(pbe_next, offsetof(struct pbe, next));
         BLANK();
+#define ENTRY(entry) DEFINE(pt_regs_ ## entry, offsetof(struct pt_regs, entry))
+        ENTRY(rbx);
+        ENTRY(rbx);
+        ENTRY(rcx);
+        ENTRY(rdx);
+        ENTRY(rsp);
+        ENTRY(rbp);
+        ENTRY(rsi);
+        ENTRY(rdi);
+        ENTRY(r8);
+        ENTRY(r9);
+        ENTRY(r10);
+        ENTRY(r11);
+        ENTRY(r12);
+        ENTRY(r13);
+        ENTRY(r14);
+        ENTRY(r15);
+        ENTRY(eflags);
+        BLANK();
+#undef ENTRY
+#define ENTRY(entry) DEFINE(saved_context_ ## entry, offsetof(struct saved_context, entry))
+        ENTRY(cr0);
+        ENTRY(cr2);
+        ENTRY(cr3);
+        ENTRY(cr4);
+        ENTRY(cr8);
+        BLANK();
+#undef ENTRY
         DEFINE(TSS_ist, offsetof(struct tss_struct, ist));
         BLANK();
         DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx));