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[RFC PATCH 05/23] vl: Introduce machine_init_done_late notifier
From: |
Isaku Yamahata |
Subject: |
[RFC PATCH 05/23] vl: Introduce machine_init_done_late notifier |
Date: |
Mon, 15 Feb 2021 18:13:01 -0800 |
Introduce a new notifier, machine_init_done_late, that is notified after
machine_init_done. This will be used by TDX to generate the HOB for its
virtual firmware, which needs to be done after all guest memory has been
added, i.e. after machine_init_done notifiers have run.
some devices adds/updates memory region by machine_init_done notifier.
Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
---
hw/core/machine.c | 26 ++++++++++++++++++++++++++
include/sysemu/sysemu.h | 2 ++
2 files changed, 28 insertions(+)
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 970046f438..02be08f3d1 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -1231,6 +1231,31 @@ void qemu_remove_machine_init_done_notifier(Notifier
*notify)
notifier_remove(notify);
}
+static NotifierList machine_init_done_late_notifiers =
+ NOTIFIER_LIST_INITIALIZER(machine_init_done_late_notifiers);
+
+static bool machine_init_done_late;
+
+void qemu_add_machine_init_done_late_notifier(Notifier *notify)
+{
+ notifier_list_add(&machine_init_done_late_notifiers, notify);
+ if (machine_init_done_late) {
+ notify->notify(notify, NULL);
+ }
+}
+
+void qemu_remove_machine_init_done_late_notifier(Notifier *notify)
+{
+ notifier_remove(notify);
+}
+
+
+static void qemu_run_machine_init_done_late_notifiers(void)
+{
+ machine_init_done_late = true;
+ notifier_list_notify(&machine_init_done_late_notifiers, NULL);
+}
+
void qdev_machine_creation_done(void)
{
cpu_synchronize_all_post_init();
@@ -1264,6 +1289,7 @@ void qdev_machine_creation_done(void)
if (rom_check_and_register_reset() != 0) {
exit(1);
}
+ qemu_run_machine_init_done_late_notifiers();
replay_start();
diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h
index 8fae667172..d44f8cf778 100644
--- a/include/sysemu/sysemu.h
+++ b/include/sysemu/sysemu.h
@@ -19,6 +19,8 @@ void qemu_remove_exit_notifier(Notifier *notify);
void qemu_run_machine_init_done_notifiers(void);
void qemu_add_machine_init_done_notifier(Notifier *notify);
void qemu_remove_machine_init_done_notifier(Notifier *notify);
+void qemu_add_machine_init_done_late_notifier(Notifier *notify);
+void qemu_remove_machine_init_done_late_notifier(Notifier *notify);
void configure_rtc(QemuOpts *opts);
--
2.17.1
- [RFC PATCH 00/23] [RFC PATCH 00/24] TDX support, Isaku Yamahata, 2021/02/15
- [RFC PATCH 05/23] vl: Introduce machine_init_done_late notifier,
Isaku Yamahata <=
- [RFC PATCH 06/23] hw/i386: Introduce kvm-type for TDX guest, Isaku Yamahata, 2021/02/15
- [RFC PATCH 02/23] kvm: Switch KVM_CAP_READONLY_MEM to a per-VM ioctl(), Isaku Yamahata, 2021/02/15
- [RFC PATCH 07/23] i386/kvm: Squash getting/putting guest state for TDX VMs, Isaku Yamahata, 2021/02/15
- [RFC PATCH 03/23] KVM: i386: use VM capability check for KVM_CAP_X86_SMM, Isaku Yamahata, 2021/02/15
- [RFC PATCH 08/23] i386/kvm: Skip KVM_X86_SETUP_MCE for TDX guests, Isaku Yamahata, 2021/02/15
- [RFC PATCH 04/23] i386/kvm: Move architectural CPUID leaf generation to separarte helper, Isaku Yamahata, 2021/02/15
- [RFC PATCH 09/23] target/i386: kvm: don't synchronize guest tsc for TD guest, Isaku Yamahata, 2021/02/15
- [RFC PATCH 01/23] target/i386: Expose x86_cpu_get_supported_feature_word() for TDX, Isaku Yamahata, 2021/02/15