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[Qemu-devel] [PATCH 3/15] introduce cpu_set to qemu monitor
From: |
Glauber Costa |
Subject: |
[Qemu-devel] [PATCH 3/15] introduce cpu_set to qemu monitor |
Date: |
Tue, 26 Feb 2008 16:56:33 -0300 |
in this patch, cpu_set is introduced to qemu monitor
semantics is : cpu_set x online|offline.
it will then tell the acpi backend to signal cpu x.
Signed-off-by: Glauber Costa <address@hidden>
---
qemu/hw/acpi.c | 4 ++++
qemu/monitor.c | 16 ++++++++++++++++
qemu/sysemu.h | 3 +++
3 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/qemu/hw/acpi.c b/qemu/hw/acpi.c
index e21ded0..d2e2e3e 100644
--- a/qemu/hw/acpi.c
+++ b/qemu/hw/acpi.c
@@ -533,3 +533,7 @@ void qemu_system_powerdown(void)
}
}
#endif
+
+void qemu_system_cpu_hot_add(int cpu, int state)
+{
+}
diff --git a/qemu/monitor.c b/qemu/monitor.c
index e8022c8..09f84a9 100644
--- a/qemu/monitor.c
+++ b/qemu/monitor.c
@@ -345,6 +345,21 @@ static void do_cpu_set(int index)
term_printf("Invalid CPU index\n");
}
+static void do_cpu_set_nr(int value, const char *status)
+{
+ int state;
+
+ if (!strcmp(status, "online"))
+ state = 1;
+ else if (!strcmp(status, "offline"))
+ state = 0;
+ else {
+ term_printf("invalid status: %s\n", status);
+ return;
+ }
+ qemu_system_cpu_hot_add(value, state);
+}
+
static void do_info_jit(void)
{
dump_exec_info(NULL, monitor_fprintf);
@@ -1338,6 +1353,7 @@ #endif
"", "cancel the current VM migration" },
{ "migrate_set_speed", "s", do_migrate_set_speed,
"value", "set maximum speed (in bytes) for migrations" },
+ { "cpu_set", "is", do_cpu_set_nr, "cpu [online|offline]", "change cpu
state" },
{ NULL, NULL, },
};
diff --git a/qemu/sysemu.h b/qemu/sysemu.h
index ffc468a..fe929b4 100644
--- a/qemu/sysemu.h
+++ b/qemu/sysemu.h
@@ -153,6 +153,9 @@ int extboot_drive;
extern int drive_get_index(BlockInterfaceType type, int bus, int unit);
extern int drive_get_max_bus(BlockInterfaceType type);
+/* acpi */
+void qemu_system_cpu_hot_add(int cpu, int state);
+
/* vmchannel devices */
#define MAX_VMCHANNEL_DEVICES 4
--
1.4.2
- [Qemu-devel] [PATCH 0/15] acpi processor hotplug, Glauber Costa, 2008/02/26
- [Qemu-devel] [PATCH 1/15] Make a GPE register block be acessible., Glauber Costa, 2008/02/26
- [Qemu-devel] [PATCH 2/15] mark extra cpus as present, Glauber Costa, 2008/02/26
- [Qemu-devel] [PATCH 3/15] introduce cpu_set to qemu monitor,
Glauber Costa <=
- [Qemu-devel] [PATCH 4/15] mark processors as presents, Glauber Costa, 2008/02/26
- [Qemu-devel] [PATCH 5/15] provide gpe _L0x methods, Glauber Costa, 2008/02/26
- [Qemu-devel] [PATCH 6/15] provide operation region for pio to the gpes, Glauber Costa, 2008/02/26
- [Qemu-devel] [PATCH 7/15] implement method _L00 for GPE0, Glauber Costa, 2008/02/26
- [Qemu-devel] [PATCH 8/15] isolate cpu initialization function in hw/pc.c, Glauber Costa, 2008/02/26
- [Qemu-devel] [PATCH 9/15] initialize hot add system., Glauber Costa, 2008/02/26
- [Qemu-devel] [PATCH 10/15] handle gpe data for pio, Glauber Costa, 2008/02/26
- [Qemu-devel] [PATCH 11/15] manipulate the gpe bits and send sci up the os., Glauber Costa, 2008/02/26
- [Qemu-devel] [PATCH 12/15] isolate cpu thread creation in qemu-kvm.c, Glauber Costa, 2008/02/26
- [Qemu-devel] [PATCH 13/15] provide _MAT to acpi processor, Glauber Costa, 2008/02/26