[Xen-changelog] [xen master] x86: show page walk when create_bounce_frame() encounters a fault

[patchbot@xxxxxxx]

commit d268f6ae2d191cc945f3492e8797fa8444877c10
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Tue Sep 16 13:57:44 2014 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Tue Sep 16 13:57:44 2014 +0200

    x86: show page walk when create_bounce_frame() encounters a fault
    
    ... getting the native code in sync with the compat mode one.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
 xen/arch/x86/x86_64/entry.S |   35 +++++++++++++++++++++++------------
 1 files changed, 23 insertions(+), 12 deletions(-)

diff --git a/xen/arch/x86/x86_64/entry.S b/xen/arch/x86/x86_64/entry.S
index 42835d0..ade555b 100644
--- a/xen/arch/x86/x86_64/entry.S
+++ b/xen/arch/x86/x86_64/entry.S
@@ -442,19 +442,30 @@ UNLIKELY_START(z, create_bounce_frame_bad_bounce_ip)
 __UNLIKELY_END(create_bounce_frame_bad_bounce_ip)
         movq  %rax,UREGS_rip+8(%rsp)
         ret
-        _ASM_EXTABLE(.Lft2,  dom_crash_sync_extable)
-        _ASM_EXTABLE(.Lft3,  dom_crash_sync_extable)
-        _ASM_EXTABLE(.Lft4,  dom_crash_sync_extable)
-        _ASM_EXTABLE(.Lft5,  dom_crash_sync_extable)
-        _ASM_EXTABLE(.Lft6,  dom_crash_sync_extable)
-        _ASM_EXTABLE(.Lft7,  dom_crash_sync_extable)
-        _ASM_EXTABLE(.Lft8,  dom_crash_sync_extable)
-        _ASM_EXTABLE(.Lft9,  dom_crash_sync_extable)
-        _ASM_EXTABLE(.Lft10, dom_crash_sync_extable)
-        _ASM_EXTABLE(.Lft11, dom_crash_sync_extable)
-        _ASM_EXTABLE(.Lft12, dom_crash_sync_extable)
-        _ASM_EXTABLE(.Lft13, dom_crash_sync_extable)
-
+        _ASM_EXTABLE(.Lft2,  domain_crash_page_fault_32)
+        _ASM_EXTABLE(.Lft3,  domain_crash_page_fault_24)
+        _ASM_EXTABLE(.Lft4,  domain_crash_page_fault_8)
+        _ASM_EXTABLE(.Lft5,  domain_crash_page_fault_16)
+        _ASM_EXTABLE(.Lft6,  domain_crash_page_fault)
+        _ASM_EXTABLE(.Lft7,  domain_crash_page_fault)
+        _ASM_EXTABLE(.Lft8,  domain_crash_page_fault_24)
+        _ASM_EXTABLE(.Lft9,  domain_crash_page_fault_16)
+        _ASM_EXTABLE(.Lft10, domain_crash_page_fault_8)
+        _ASM_EXTABLE(.Lft11, domain_crash_page_fault)
+        _ASM_EXTABLE(.Lft12, domain_crash_page_fault_8)
+        _ASM_EXTABLE(.Lft13, domain_crash_page_fault)
+
+domain_crash_page_fault_32:
+        addq  $8,%rsi
+domain_crash_page_fault_24:
+        addq  $8,%rsi
+domain_crash_page_fault_16:
+        addq  $8,%rsi
+domain_crash_page_fault_8:
+        addq  $8,%rsi
+domain_crash_page_fault:
+        movq  %rsi,%rdi
+        call  show_page_walk
 ENTRY(dom_crash_sync_extable)
         # Get out of the guest-save area of the stack.
         GET_STACK_BASE(%rax)
--
generated by git-patchbot for /home/xen/git/xen.git#master

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