From: Eduardo Habkost <ehabkost@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Igor Mammedov" <imammedo@redhat.com>,
"Laszlo Ersek" <lersek@redhat.com>,
"Andreas Färber" <afaerber@suse.de>,
"Michael S. Tsirkin" <mst@redhat.com>
Subject: [Qemu-devel] [PATCH v2 1/4] acpi: Add ACPI_CPU_HOTPLUG_ID_LIMIT macro
Date: Wed, 12 Mar 2014 15:28:07 -0300 [thread overview]
Message-ID: <1394648890-933-2-git-send-email-ehabkost@redhat.com> (raw)
In-Reply-To: <1394648890-933-1-git-send-email-ehabkost@redhat.com>
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 <ehabkost@redhat.com>
---
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
next prev parent reply other threads:[~2014-03-12 18:28 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-12 18:28 [Qemu-devel] [PATCH v2 0/4] pc: Ensure APIC ID limits before aborting or corrupting memory Eduardo Habkost
2014-03-12 18:28 ` Eduardo Habkost [this message]
2014-03-12 21:17 ` [Qemu-devel] [PATCH v2 1/4] acpi: Add ACPI_CPU_HOTPLUG_ID_LIMIT macro Laszlo Ersek
2014-03-12 21:18 ` Laszlo Ersek
2014-03-13 0:12 ` Eduardo Habkost
2014-03-13 0:29 ` Laszlo Ersek
2014-03-12 18:28 ` [Qemu-devel] [PATCH v2 2/4] pc: Refuse CPU hotplug if the resulting APIC ID is too large Eduardo Habkost
2014-03-12 21:19 ` Laszlo Ersek
2014-03-12 18:28 ` [Qemu-devel] [PATCH v2 3/4] acpi: Assert sts array limit on AcpiCpuHotplug_add() Eduardo Habkost
2014-03-12 21:19 ` Laszlo Ersek
2014-03-12 18:28 ` [Qemu-devel] [PATCH v2 4/4] pc: Refuse max_cpus if it results in too large APIC ID Eduardo Habkost
2014-03-12 22:07 ` Laszlo Ersek
2014-03-13 0:34 ` Eduardo Habkost
2014-03-12 18:58 ` [Qemu-devel] [PATCH v2 0/4] pc: Ensure APIC ID limits before aborting or corrupting memory Eduardo Habkost
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