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[15/19] xen/arm: Resume Dom0 after Xen resumes

Message ID 500232faa5a520d5cda582de3ae7cf7735190a55.1665137247.git.mykyta_poturai@epam.com (mailing list archive)
State New, archived
Headers show
Series [01/19] xen/arm: Implement PSCI system suspend | expand

Commit Message

Mykyta Poturai Oct. 7, 2022, 10:32 a.m. UTC 
From: Mirela Simonovic <mirela.simonovic@aggios.com>

The resume of Dom0 should always follow Xen's resume. This is
done by unblocking the first vCPU of Dom0.

Signed-off-by: Mirela Simonovic <mirela.simonovic@aggios.com>
Signed-off-by: Saeed Nowshadi <saeed.nowshadi@xilinx.com>
---
 xen/arch/arm/suspend.c | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/xen/arch/arm/suspend.c b/xen/arch/arm/suspend.c
index 13d1aba658..4a690eac3b 100644
--- a/xen/arch/arm/suspend.c
+++ b/xen/arch/arm/suspend.c
@@ -206,6 +206,9 @@  resume_nonboot_cpus:
     system_state = SYS_STATE_active;
     dsb(sy);
 
+    /* Wake-up hardware domain (should always resume after Xen) */
+    vcpu_unblock(hardware_domain->vcpu[0]);
+
     return status;
 }