[PATCH 8/8] xen/arm32: traps: Dump more information for hypervisor data abort

[Julien Grall <julien@xxxxxxx>]

From: Julien Grall <jgrall@xxxxxxxxxx>

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 replace the call
to do_unexpected_trap() with do_trap_hyp_sync() to dispatch the error.

Signed-off-by: Julien Grall <jgrall@xxxxxxxxxx>
---
 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 a4ce2b92d904..a2fc1c22cbc9 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 08bc0b484c75..883dae368eac 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);
-- 
2.37.1