[xen staging] xen/arm32: traps: Dump more information for hypervisor data abort

[patchbot@xxxxxxx]

commit e997d055929665b12246e89eb092dc79c65de9a4
Author:     Julien Grall <jgrall@xxxxxxxxxx>
AuthorDate: Fri Aug 12 20:24:48 2022 +0100
Commit:     Julien Grall <julien@xxxxxxx>
CommitDate: Wed Aug 31 20:16:22 2022 +0100

    xen/arm32: traps: Dump more information for hypervisor data abort
    
    Unlike arm64, on arm32 there are no extra information dumped (e.g.
    page table walk) for hypervisor data abort.
    
    For data abort, the HSR will be set properly and so call
    do_trap_hyp_sync() instead of do_unexpected_trap() on arm32 to have
    the print the same information as arm64.
    
    Signed-off-by: Julien Grall <jgrall@xxxxxxxxxx>
    Reviewed-by: Bertrand Marquis <bertrand.marquis@xxxxxxx>
---
 xen/arch/arm/arm32/traps.c       | 2 +-
 xen/arch/arm/include/asm/traps.h | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/xen/arch/arm/arm32/traps.c b/xen/arch/arm/arm32/traps.c
index a4ce2b92d9..a2fc1c22cb 100644
--- a/xen/arch/arm/arm32/traps.c
+++ b/xen/arch/arm/arm32/traps.c
@@ -81,7 +81,7 @@ void do_trap_data_abort(struct cpu_user_regs *regs)
     if ( VABORT_GEN_BY_GUEST(regs) )
         do_trap_guest_serror(regs);
     else
-        do_unexpected_trap("Data Abort", regs);
+        do_trap_hyp_sync(regs);
 }
 
 void finalize_instr_emulation(const struct instr_details *instr)
diff --git a/xen/arch/arm/include/asm/traps.h b/xen/arch/arm/include/asm/traps.h
index 08bc0b484c..883dae368e 100644
--- a/xen/arch/arm/include/asm/traps.h
+++ b/xen/arch/arm/include/asm/traps.h
@@ -73,6 +73,7 @@ int do_bug_frame(const struct cpu_user_regs *regs, vaddr_t 
pc);
 
 void noreturn do_unexpected_trap(const char *msg,
                                  const struct cpu_user_regs *regs);
+void do_trap_hyp_sync(struct cpu_user_regs *regs);
 
 /* Functions for pending virtual abort checking window. */
 void abort_guest_exit_start(void);
--
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