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[PATCH 16/19] xen/arm: Suspend/resume console on Xen suspend/resume
- To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Mykyta Poturai <Mykyta_Poturai@xxxxxxxx>
- Date: Fri, 7 Oct 2022 10:32:50 +0000
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- Cc: Mirela Simonovic <mirela.simonovic@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Saeed Nowshadi <saeed.nowshadi@xxxxxxxxxx>
- Delivery-date: Fri, 07 Oct 2022 10:33:16 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Thread-index: AQHY2jgmltStcpUKEUSAkPaRlzuavQ==
- Thread-topic: [PATCH 16/19] xen/arm: Suspend/resume console on Xen suspend/resume
From: 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 4a690eac3b..cf3aab0099 100644
--- a/xen/arch/arm/suspend.c
+++ b/xen/arch/arm/suspend.c
@@ -14,6 +14,7 @@
#include <xen/sched.h>
#include <xen/cpu.h>
+#include <xen/console.h>
#include <asm/cpufeature.h>
#include <asm/event.h>
#include <asm/psci.h>
@@ -166,6 +167,15 @@ 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();
@@ -192,6 +202,10 @@ static long system_suspend(void *data)
*/
mmu_init_secondary_cpu();
+resume_console:
+ console_resume();
+ dprintk(XENLOG_DEBUG, "Resume\n");
+
gic_resume();
resume_irqs:
--
2.37.1
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