From: Wei Liu <wei.liu2@citrix.com>
Date: Thu, 8 Jun 2017 16:09:49 +0000 (+0100)
Subject: x86: move hypercall_page_initialise_ring1_kernel
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x86: move hypercall_page_initialise_ring1_kernel

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
---

diff --git a/xen/arch/x86/pv/hypercall.c b/xen/arch/x86/pv/hypercall.c
index 4f2c2cde12..f79f7eef62 100644
--- a/xen/arch/x86/pv/hypercall.c
+++ b/xen/arch/x86/pv/hypercall.c
@@ -290,6 +290,36 @@ void hypercall_page_initialise_ring3_kernel(void *hypercall_page)
     *(u16 *)(p+ 9) = 0x050f;  /* syscall */
 }
 
+void hypercall_page_initialise_ring1_kernel(void *hypercall_page)
+{
+    void *p = hypercall_page;
+    unsigned int i;
+
+    /* Fill in all the transfer points with template machine code. */
+
+    for ( i = 0; i < (PAGE_SIZE / 32); i++, p += 32 )
+    {
+        if ( i == __HYPERVISOR_iret )
+            continue;
+
+        *(u8  *)(p+ 0) = 0xb8;    /* mov  $<i>,%eax */
+        *(u32 *)(p+ 1) = i;
+        *(u16 *)(p+ 5) = (HYPERCALL_VECTOR << 8) | 0xcd; /* int  $xx */
+        *(u8  *)(p+ 7) = 0xc3;    /* ret */
+    }
+
+    /*
+     * HYPERVISOR_iret is special because it doesn't return and expects a
+     * special stack frame. Guests jump at this transfer point instead of
+     * calling it.
+     */
+    p = hypercall_page + (__HYPERVISOR_iret * 32);
+    *(u8  *)(p+ 0) = 0x50;    /* push %eax */
+    *(u8  *)(p+ 1) = 0xb8;    /* mov  $__HYPERVISOR_iret,%eax */
+    *(u32 *)(p+ 2) = __HYPERVISOR_iret;
+    *(u16 *)(p+ 6) = (HYPERCALL_VECTOR << 8) | 0xcd; /* int  $xx */
+}
+
 /*
  * Local variables:
  * mode: C
diff --git a/xen/arch/x86/x86_64/compat/traps.c b/xen/arch/x86/x86_64/compat/traps.c
index 1751ec67e8..f485299c88 100644
--- a/xen/arch/x86/x86_64/compat/traps.c
+++ b/xen/arch/x86/x86_64/compat/traps.c
@@ -374,37 +374,6 @@ int compat_set_trap_table(XEN_GUEST_HANDLE(trap_info_compat_t) traps)
     return rc;
 }
 
-static void hypercall_page_initialise_ring1_kernel(void *hypercall_page)
-{
-    char *p;
-    int i;
-
-    /* Fill in all the transfer points with template machine code. */
-
-    for ( i = 0; i < (PAGE_SIZE / 32); i++ )
-    {
-        if ( i == __HYPERVISOR_iret )
-            continue;
-
-        p = (char *)(hypercall_page + (i * 32));
-        *(u8  *)(p+ 0) = 0xb8;    /* mov  $<i>,%eax */
-        *(u32 *)(p+ 1) = i;
-        *(u16 *)(p+ 5) = (HYPERCALL_VECTOR << 8) | 0xcd; /* int  $xx */
-        *(u8  *)(p+ 7) = 0xc3;    /* ret */
-    }
-
-    /*
-     * HYPERVISOR_iret is special because it doesn't return and expects a
-     * special stack frame. Guests jump at this transfer point instead of
-     * calling it.
-     */
-    p = (char *)(hypercall_page + (__HYPERVISOR_iret * 32));
-    *(u8  *)(p+ 0) = 0x50;    /* push %eax */
-    *(u8  *)(p+ 1) = 0xb8;    /* mov  $__HYPERVISOR_iret,%eax */
-    *(u32 *)(p+ 2) = __HYPERVISOR_iret;
-    *(u16 *)(p+ 6) = (HYPERCALL_VECTOR << 8) | 0xcd; /* int  $xx */
-}
-
 /*
  * Local variables:
  * mode: C
diff --git a/xen/include/asm-x86/hypercall.h b/xen/include/asm-x86/hypercall.h
index 5631cf2694..3eb4a8db89 100644
--- a/xen/include/asm-x86/hypercall.h
+++ b/xen/include/asm-x86/hypercall.h
@@ -27,6 +27,7 @@ extern const hypercall_args_t hypercall_args_table[NR_hypercalls];
 
 void pv_hypercall(struct cpu_user_regs *regs);
 void hypercall_page_initialise_ring3_kernel(void *hypercall_page);
+void hypercall_page_initialise_ring1_kernel(void *hypercall_page);
 
 /*
  * Both do_mmuext_op() and do_mmu_update():