Hi,
On 08/08/17 21:08, Volodymyr Babchuk wrote:
On certain ARM arhcitectures SMC instruction can be conditional
(ARM DDI 0487A.k page D7-1949) and we need to check if that
conditional was meet.
Signed-off-by: Volodymyr Babchuk <volodymyr_babc...@epam.com>
---
This patch was separated from the next one
Nowhere in this series you mention the dependencies on your other series
[1]. This patch should not be merged until [1] has been merged.
Cheers,
---
xen/arch/arm/traps.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/xen/arch/arm/traps.c b/xen/arch/arm/traps.c
index 0171c1c..e14e7c0 100644
--- a/xen/arch/arm/traps.c
+++ b/xen/arch/arm/traps.c
@@ -2773,6 +2773,12 @@ static void do_trap_smc(struct cpu_user_regs *regs,
const union hsr hsr)
{
int rc = 0;
+ if ( !check_conditional_instr(regs, hsr) )
+ {
+ advance_pc(regs, hsr);
+ return;
+ }
+
if ( current->domain->arch.monitor.privileged_call_enabled )
rc = monitor_smc();
[1]
https://lists.xenproject.org/archives/html/xen-devel/2017-07/msg02988.html
--
Julien Grall
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