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Re: [PATCH v6 2/2] pc: q35: Bump max_cpus to 1024
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From: |
Daniel P . Berrangé |
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Subject: |
Re: [PATCH v6 2/2] pc: q35: Bump max_cpus to 1024 |
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Date: |
Thu, 8 Jun 2023 08:52:47 +0100 |
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User-agent: |
Mutt/2.2.9 (2022-11-12) |
On Wed, Jun 07, 2023 at 03:57:17PM -0500, Suravee Suthikulpanit wrote:
> Since KVM_MAX_VCPUS is currently defined to 1024 for x86 as shown in
> arch/x86/include/asm/kvm_host.h, update QEMU limits to the same number.
>
> In case KVM could not support the specified number of vcpus, QEMU would
> return the following error message:
>
> qemu-system-x86_64: kvm_init_vcpu: kvm_get_vcpu failed (xxx): Invalid
> argument
>
> Also, keep max_cpus at 288 for machine version 8.0 and older.
>
> Cc: Igor Mammedov <imammedo@redhat.com>
> Cc: Daniel P. Berrangé <berrange@redhat.com>
> Cc: Michael S. Tsirkin <mst@redhat.com>
> Cc: Julia Suvorova <jusual@redhat.com>
> Reviewed-by: Igor Mammedov <imammedo@redhat.com>
> Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
> ---
> hw/i386/pc_q35.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
With regards,
Daniel
--
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