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[RFC PATCH 04/12] arm/sdei: add system reset callback
From: |
Heyi Guo |
Subject: |
[RFC PATCH 04/12] arm/sdei: add system reset callback |
Date: |
Tue, 24 Sep 2019 23:21:43 +0800 |
For this is a logical device which is not attached to system bus, we
cannot use DeviceClass->reset interface directly. Instead we register
our own reset callback to reset SDEI services when system resets.
Signed-off-by: Heyi Guo <address@hidden>
Signed-off-by: Jingyi Wang <address@hidden>
Cc: Peter Maydell <address@hidden>
Cc: Dave Martin <address@hidden>
Cc: Marc Zyngier <address@hidden>
Cc: Mark Rutland <address@hidden>
Cc: James Morse <address@hidden>
---
target/arm/sdei.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/target/arm/sdei.c b/target/arm/sdei.c
index b40fa36..f9a1208 100644
--- a/target/arm/sdei.c
+++ b/target/arm/sdei.c
@@ -1083,6 +1083,26 @@ static void qemu_sde_init(QemuSDEState *s)
qemu_private_sde_init(s);
}
+static void qemu_sde_reset(void *opaque)
+{
+ int64_t ret;
+ CPUState *cs;
+ QemuSDEState *s = opaque;
+
+ CPU_FOREACH(cs) {
+ QemuSDECpu *sde_cpu = get_sde_cpu(s, cs);
+ sdei_private_reset_common(s, cs, true);
+ sde_cpu->masked = true;
+ sde_cpu->critical_running_event = SDEI_INVALID_EVENT_ID;
+ sde_cpu->normal_running_event = SDEI_INVALID_EVENT_ID;
+ }
+
+ ret = sdei_shared_reset_common(s, first_cpu, true);
+ if (ret) {
+ error_report("SDEI system reset failed: 0x%lx", ret);
+ }
+}
+
static int qemu_sdei_pre_save(void *opaque)
{
QemuSDEState *s = opaque;
@@ -1235,6 +1255,7 @@ static void sdei_initfn(Object *obj)
sde_state = s;
qemu_sde_init(s);
+ qemu_register_reset(qemu_sde_reset, s);
}
static void qemu_sde_class_init(ObjectClass *klass, void *data)
--
1.8.3.1
- [RFC PATCH 00/12] Add SDEI support for arm64, Heyi Guo, 2019/09/24
- [RFC PATCH 01/12] linux-headers: import arm_sdei.h, Heyi Guo, 2019/09/24
- [RFC PATCH 04/12] arm/sdei: add system reset callback,
Heyi Guo <=
- [RFC PATCH 06/12] core/irq: add qemu_irq_remove_intercept interface, Heyi Guo, 2019/09/24
- [RFC PATCH 10/12] arm/sdei: check KVM cap and enable SDEI, Heyi Guo, 2019/09/24
- [RFC PATCH 05/12] arm/sdei: add support to trigger event by GIC interrupt ID, Heyi Guo, 2019/09/24
- [RFC PATCH 02/12] arm/sdei: add virtual device framework, Heyi Guo, 2019/09/24
- [RFC PATCH 07/12] arm/sdei: override qemu_irq handler when binding interrupt, Heyi Guo, 2019/09/24
- [RFC PATCH 11/12] arm/kvm: handle guest exit of hypercall, Heyi Guo, 2019/09/24
- [RFC PATCH 12/12] virt/acpi: add SDEI table if SDEI is enabled, Heyi Guo, 2019/09/24
- [RFC PATCH 09/12] linux-headers/kvm.h: add capability to forward hypercall, Heyi Guo, 2019/09/24
- [RFC PATCH 08/12] arm/sdei: add support to register interrupt bind notifier, Heyi Guo, 2019/09/24