[Xen-devel] [PATCH 18/18] xen/arm: Suspend/resume console on Xen suspend/resume

[Mirela Simonovic <mirela.simonovic@xxxxxxxxxx>]

This is done using generic console_suspend/resume functions that cause
uart driver specific suspend/resume handlers to be called for each
initialized port (if the port has suspend/resume driver handlers
implemented).

Signed-off-by: Mirela Simonovic <mirela.simonovic@xxxxxxxxxx>
Signed-off-by: Saeed Nowshadi <saeed.nowshadi@xxxxxxxxxx>
---
 xen/arch/arm/suspend.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/xen/arch/arm/suspend.c b/xen/arch/arm/suspend.c
index a05aea9c25..6d7d69539b 100644
--- a/xen/arch/arm/suspend.c
+++ b/xen/arch/arm/suspend.c
@@ -1,5 +1,6 @@
 #include <xen/sched.h>
 #include <xen/cpu.h>
+#include <xen/console.h>
 #include <asm/cpufeature.h>
 #include <asm/event.h>
 #include <asm/psci.h>
@@ -149,6 +150,15 @@ static long system_suspend(void *data)
         goto resume_irqs;
     }
 
+    dprintk(XENLOG_DEBUG, "Suspend\n");
+    status = console_suspend();
+    if ( status )
+    {
+        dprintk(XENLOG_ERR, "Failed to suspend the console, err=%d\n", status);
+        system_state = SYS_STATE_resume;
+        goto resume_console;
+    }
+
     if ( hyp_suspend(&cpu_context) )
     {
         status = call_psci_system_suspend();
@@ -175,6 +185,10 @@ static long system_suspend(void *data)
      */
     mmu_init_secondary_cpu();
 
+resume_console:
+    console_resume();
+    dprintk(XENLOG_DEBUG, "Resume\n");
+
     gic_resume();
 
 resume_irqs:
-- 
2.13.0


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-devel