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[Qemu-devel] [PATCH v3 2/2] x86: Increase max vcpu number to 8192
From: |
Lan Tianyu |
Subject: |
[Qemu-devel] [PATCH v3 2/2] x86: Increase max vcpu number to 8192 |
Date: |
Tue, 15 Aug 2017 20:06:19 -0400 |
For HPC usage case, it will create a huge VM with vcpus number as same as host
cpus and this requires more vcpus support in a single VM. This patch is to
increase max vcpu number from 288 to 8192 which is current default maximum cpu
number for Linux kernel.
Signed-off-by: Lan Tianyu <address@hidden>
---
hw/i386/pc_q35.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index b469d05..3468f5a 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -299,7 +299,7 @@ static void pc_q35_machine_options(MachineClass *m)
m->default_display = "std";
m->no_floppy = 1;
m->has_dynamic_sysbus = true;
- m->max_cpus = 288;
+ m->max_cpus = 8192;
}
static void pc_q35_2_11_machine_options(MachineClass *m)
@@ -314,6 +314,7 @@ static void pc_q35_2_10_machine_options(MachineClass *m)
{
pc_q35_2_11_machine_options(m);
m->alias = NULL;
+ m->max_cpus = 288;
m->numa_auto_assign_ram = numa_legacy_auto_assign_ram;
SET_MACHINE_COMPAT(m, PC_COMPAT_2_10);
}
--
1.8.3.1