[Xen-changelog] [xen staging] x86/pv: Move async_exception_cleanup() into pv/iret.c

[patchbot@xxxxxxx]

commit 094796affb7c87f6b2daccdbe192208af715e088
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Tue Jul 23 20:46:35 2019 +0100
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Wed Jul 24 14:40:10 2019 +0100

    x86/pv: Move async_exception_cleanup() into pv/iret.c
    
    All callers are in pv/iret.c.  Move the function and make it static.
    
    No functional change.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Juergen Gross <jgross@xxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/x86/pv/iret.c      | 25 ++++++++++++++++++++++++-
 xen/arch/x86/traps.c        | 24 ------------------------
 xen/include/asm-x86/traps.h |  2 --
 3 files changed, 24 insertions(+), 27 deletions(-)

diff --git a/xen/arch/x86/pv/iret.c b/xen/arch/x86/pv/iret.c
index c359a1dbfd..16b449ff64 100644
--- a/xen/arch/x86/pv/iret.c
+++ b/xen/arch/x86/pv/iret.c
@@ -22,7 +22,30 @@
 #include <xen/sched.h>
 
 #include <asm/current.h>
-#include <asm/traps.h>
+
+static void async_exception_cleanup(struct vcpu *curr)
+{
+    unsigned int trap;
+
+    if ( !curr->async_exception_mask )
+        return;
+
+    if ( !(curr->async_exception_mask & (curr->async_exception_mask - 1)) )
+        trap = __scanbit(curr->async_exception_mask, VCPU_TRAP_NONE);
+    else
+        for ( trap = VCPU_TRAP_NONE + 1; trap <= VCPU_TRAP_LAST; ++trap )
+            if ( (curr->async_exception_mask ^
+                  curr->async_exception_state(trap).old_mask) == (1u << trap) )
+                break;
+    if ( unlikely(trap > VCPU_TRAP_LAST) )
+    {
+        ASSERT_UNREACHABLE();
+        return;
+    }
+
+    /* Restore previous asynchronous exception mask. */
+    curr->async_exception_mask = curr->async_exception_state(trap).old_mask;
+}
 
 unsigned long do_iret(void)
 {
diff --git a/xen/arch/x86/traps.c b/xen/arch/x86/traps.c
index 08d7edc568..38d12013db 100644
--- a/xen/arch/x86/traps.c
+++ b/xen/arch/x86/traps.c
@@ -1593,30 +1593,6 @@ static void pci_serr_softirq(void)
     outb(inb(0x61) & 0x0b, 0x61); /* re-enable the PCI SERR error line. */
 }
 
-void async_exception_cleanup(struct vcpu *curr)
-{
-    int trap;
-
-    if ( !curr->async_exception_mask )
-        return;
-
-    if ( !(curr->async_exception_mask & (curr->async_exception_mask - 1)) )
-        trap = __scanbit(curr->async_exception_mask, VCPU_TRAP_NONE);
-    else
-        for ( trap = VCPU_TRAP_NONE + 1; trap <= VCPU_TRAP_LAST; ++trap )
-            if ( (curr->async_exception_mask ^
-                  curr->async_exception_state(trap).old_mask) == (1 << trap) )
-                break;
-    if ( unlikely(trap > VCPU_TRAP_LAST) )
-    {
-        ASSERT_UNREACHABLE();
-        return;
-    }
-
-    /* Restore previous asynchronous exception mask. */
-    curr->async_exception_mask = curr->async_exception_state(trap).old_mask;
-}
-
 static void nmi_hwdom_report(unsigned int reason_idx)
 {
     struct domain *d = hardware_domain;
diff --git a/xen/include/asm-x86/traps.h b/xen/include/asm-x86/traps.h
index b88f2a4f2f..ec23d3a70b 100644
--- a/xen/include/asm-x86/traps.h
+++ b/xen/include/asm-x86/traps.h
@@ -19,8 +19,6 @@
 #ifndef ASM_TRAP_H
 #define ASM_TRAP_H
 
-void async_exception_cleanup(struct vcpu *);
-
 const char *trapstr(unsigned int trapnr);
 
 #endif /* ASM_TRAP_H */
--
generated by git-patchbot for /home/xen/git/xen.git#staging

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