* [Qemu-devel] [PATCH 1/1] hw/arm/virt: increase max SMP CPU support to 8 for ARM virt
@ 2014-08-21 14:51 Wei Huang
2014-08-21 14:59 ` Joel Schopp
0 siblings, 1 reply; 3+ messages in thread
From: Wei Huang @ 2014-08-21 14:51 UTC (permalink / raw)
To: qemu-devel; +Cc: peter.maydell, kvmarm, wehuang
Current ARM virt model supports up to 4 CPUs. Given that many recent
ARM servers contain 8 or more cores, it is time to bump up max guest CPUs
to 8. This patch was tested with a VM runnng 3.15 Linux kernel. All 8
VCPUs showed up.
Signed-off-by: Wei Huang <wehuang@redhat.com>
---
hw/arm/virt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index ba94298..73a2a0f 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -520,7 +520,7 @@ static QEMUMachine machvirt_a15_machine = {
.name = "virt",
.desc = "ARM Virtual Machine",
.init = machvirt_init,
- .max_cpus = 4,
+ .max_cpus = 8,
};
static void machvirt_machine_init(void)
--
1.8.3.1
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [Qemu-devel] [PATCH 1/1] hw/arm/virt: increase max SMP CPU support to 8 for ARM virt
2014-08-21 14:51 [Qemu-devel] [PATCH 1/1] hw/arm/virt: increase max SMP CPU support to 8 for ARM virt Wei Huang
@ 2014-08-21 14:59 ` Joel Schopp
2014-08-21 15:08 ` Wei Huang
0 siblings, 1 reply; 3+ messages in thread
From: Joel Schopp @ 2014-08-21 14:59 UTC (permalink / raw)
To: Wei Huang, qemu-devel; +Cc: peter.maydell, kvmarm
On 08/21/2014 09:51 AM, Wei Huang wrote:
> Current ARM virt model supports up to 4 CPUs. Given that many recent
> ARM servers contain 8 or more cores, it is time to bump up max guest CPUs
> to 8. This patch was tested with a VM runnng 3.15 Linux kernel. All 8
> VCPUs showed up.
>
> Signed-off-by: Wei Huang <wehuang@redhat.com>
Great minds think alike :)
http://lists.nongnu.org/archive/html/qemu-devel/2014-08/msg03306.html
> ---
> hw/arm/virt.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/hw/arm/virt.c b/hw/arm/virt.c
> index ba94298..73a2a0f 100644
> --- a/hw/arm/virt.c
> +++ b/hw/arm/virt.c
> @@ -520,7 +520,7 @@ static QEMUMachine machvirt_a15_machine = {
> .name = "virt",
> .desc = "ARM Virtual Machine",
> .init = machvirt_init,
> - .max_cpus = 4,
> + .max_cpus = 8,
> };
>
> static void machvirt_machine_init(void)
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [Qemu-devel] [PATCH 1/1] hw/arm/virt: increase max SMP CPU support to 8 for ARM virt
2014-08-21 14:59 ` Joel Schopp
@ 2014-08-21 15:08 ` Wei Huang
0 siblings, 0 replies; 3+ messages in thread
From: Wei Huang @ 2014-08-21 15:08 UTC (permalink / raw)
To: Joel Schopp, qemu-devel; +Cc: peter.maydell, kvmarm
On 08/21/2014 09:59 AM, Joel Schopp wrote:
>
> On 08/21/2014 09:51 AM, Wei Huang wrote:
>> Current ARM virt model supports up to 4 CPUs. Given that many recent
>> ARM servers contain 8 or more cores, it is time to bump up max guest CPUs
>> to 8. This patch was tested with a VM runnng 3.15 Linux kernel. All 8
>> VCPUs showed up.
>>
>> Signed-off-by: Wei Huang <wehuang@redhat.com>
> Great minds think alike :)
> http://lists.nongnu.org/archive/html/qemu-devel/2014-08/msg03306.html
Oops, I missed this one. Thanks for pointing it out. :P
>
>
>> ---
>> hw/arm/virt.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/hw/arm/virt.c b/hw/arm/virt.c
>> index ba94298..73a2a0f 100644
>> --- a/hw/arm/virt.c
>> +++ b/hw/arm/virt.c
>> @@ -520,7 +520,7 @@ static QEMUMachine machvirt_a15_machine = {
>> .name = "virt",
>> .desc = "ARM Virtual Machine",
>> .init = machvirt_init,
>> - .max_cpus = 4,
>> + .max_cpus = 8,
>> };
>> static void machvirt_machine_init(void)
>
>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2014-08-21 14:51 [Qemu-devel] [PATCH 1/1] hw/arm/virt: increase max SMP CPU support to 8 for ARM virt Wei Huang
2014-08-21 14:59 ` Joel Schopp
2014-08-21 15:08 ` Wei Huang
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