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[Qemu-devel] [PATCH v2 1/4] acpi: Add ACPI_CPU_HOTPLUG_ID_LIMIT macro
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From: |
Eduardo Habkost |
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Subject: |
[Qemu-devel] [PATCH v2 1/4] acpi: Add ACPI_CPU_HOTPLUG_ID_LIMIT macro |
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Date: |
Wed, 12 Mar 2014 15:28:07 -0300 |
The new macro will be helpful to allow us to detect too large SMP limits
before it is too late.
Signed-off-by: Eduardo Habkost <address@hidden>
---
include/hw/acpi/cpu_hotplug_defs.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/include/hw/acpi/cpu_hotplug_defs.h
b/include/hw/acpi/cpu_hotplug_defs.h
index 2725b50..9f33663 100644
--- a/include/hw/acpi/cpu_hotplug_defs.h
+++ b/include/hw/acpi/cpu_hotplug_defs.h
@@ -17,7 +17,15 @@
* between C and ASL code.
*/
#define ACPI_CPU_HOTPLUG_STATUS 4
+
+/* Limit for CPU arch IDs for CPU hotplug. All hotpluggable CPUs should
+ * have CPUClass.get_arch_id() < ACPI_CPU_HOTPLUG_ID_LIMIT.
+ */
+#define ACPI_CPU_HOTPLUG_ID_LIMIT 256
+
+/* 256 CPU IDs, 8 bits per entry: */
#define ACPI_GPE_PROC_LEN 32
+
#define ICH9_CPU_HOTPLUG_IO_BASE 0x0CD8
#define PIIX4_CPU_HOTPLUG_IO_BASE 0xaf00
--
1.8.5.3
[Qemu-devel] [PATCH v2 3/4] acpi: Assert sts array limit on AcpiCpuHotplug_add(), Eduardo Habkost, 2014/03/12
[Qemu-devel] [PATCH v2 2/4] pc: Refuse CPU hotplug if the resulting APIC ID is too large, Eduardo Habkost, 2014/03/12
[Qemu-devel] [PATCH v2 4/4] pc: Refuse max_cpus if it results in too large APIC ID, Eduardo Habkost, 2014/03/12