v4.19.13 snapshot.
diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c
new file mode 100644
index 0000000..3b9405e
--- /dev/null
+++ b/arch/x86/kernel/asm-offsets_64.c
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0
+#ifndef __LINUX_KBUILD_H
+# error "Please do not build this file directly, build asm-offsets.c instead"
+#endif
+
+#include <asm/ia32.h>
+
+#define __SYSCALL_64(nr, sym, qual) [nr] = 1,
+static char syscalls_64[] = {
+#include <asm/syscalls_64.h>
+};
+#define __SYSCALL_I386(nr, sym, qual) [nr] = 1,
+static char syscalls_ia32[] = {
+#include <asm/syscalls_32.h>
+};
+
+#if defined(CONFIG_KVM_GUEST) && defined(CONFIG_PARAVIRT_SPINLOCKS)
+#include <asm/kvm_para.h>
+#endif
+
+int main(void)
+{
+#ifdef CONFIG_PARAVIRT
+ OFFSET(PV_CPU_usergs_sysret64, pv_cpu_ops, usergs_sysret64);
+ OFFSET(PV_CPU_swapgs, pv_cpu_ops, swapgs);
+#ifdef CONFIG_DEBUG_ENTRY
+ OFFSET(PV_IRQ_save_fl, pv_irq_ops, save_fl);
+#endif
+ BLANK();
+#endif
+
+#if defined(CONFIG_KVM_GUEST) && defined(CONFIG_PARAVIRT_SPINLOCKS)
+ OFFSET(KVM_STEAL_TIME_preempted, kvm_steal_time, preempted);
+ BLANK();
+#endif
+
+#define ENTRY(entry) OFFSET(pt_regs_ ## entry, pt_regs, entry)
+ ENTRY(bx);
+ ENTRY(cx);
+ ENTRY(dx);
+ ENTRY(sp);
+ ENTRY(bp);
+ ENTRY(si);
+ ENTRY(di);
+ ENTRY(r8);
+ ENTRY(r9);
+ ENTRY(r10);
+ ENTRY(r11);
+ ENTRY(r12);
+ ENTRY(r13);
+ ENTRY(r14);
+ ENTRY(r15);
+ ENTRY(flags);
+ BLANK();
+#undef ENTRY
+
+#define ENTRY(entry) OFFSET(saved_context_ ## entry, saved_context, entry)
+ ENTRY(cr0);
+ ENTRY(cr2);
+ ENTRY(cr3);
+ ENTRY(cr4);
+ ENTRY(cr8);
+ ENTRY(gdt_desc);
+ BLANK();
+#undef ENTRY
+
+ OFFSET(TSS_ist, tss_struct, x86_tss.ist);
+ BLANK();
+
+#ifdef CONFIG_STACKPROTECTOR
+ DEFINE(stack_canary_offset, offsetof(union irq_stack_union, stack_canary));
+ BLANK();
+#endif
+
+ DEFINE(__NR_syscall_max, sizeof(syscalls_64) - 1);
+ DEFINE(NR_syscalls, sizeof(syscalls_64));
+
+ DEFINE(__NR_syscall_compat_max, sizeof(syscalls_ia32) - 1);
+ DEFINE(IA32_NR_syscalls, sizeof(syscalls_ia32));
+
+ return 0;
+}