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Re: [PATCH v5 0/2] add new options to set smbios type 4 fields
From: |
Michael S. Tsirkin |
Subject: |
Re: [PATCH v5 0/2] add new options to set smbios type 4 fields |
Date: |
Thu, 6 Aug 2020 02:01:05 -0400 |
On Thu, Aug 06, 2020 at 11:56:32AM +0800, Ying Fang wrote:
> From: fangying <fangying1@huawei.com>
>
> Hi, this patchset was previously posted by my teamate Heyi Guo several
> months ago, however we missed the merge window. It is reposted here to
> make it an end. Thanks.
Thanks, I will tag it for after the release.
Pls ping me after the release to make sure I don't drop it by mistake.
> Patch description:
>
> Common VM users sometimes care about CPU speed, so we add two new
> options to allow VM vendors to present CPU speed to their users.
> Normally these information can be fetched from host smbios.
>
> Strictly speaking, the "max speed" and "current speed" in type 4
> are not really for the max speed and current speed of processor, for
> "max speed" identifies a capability of the system, and "current speed"
> identifies the processor's speed at boot (see smbios spec), but some
> applications do not tell the differences.
>
> Changelog:
>
> v4 -> v5:
> - Rebase patch for lastest upstream
>
> v3 -> v4:
> - Fix the default value when not specifying "-smbios type=4" option;
> it would be 0 instead of 2000 in previous versions
> - Use uint64_t type to check value overflow
> - Add test case to check smbios type 4 CPU speed
> - v4 https://patchwork.kernel.org/cover/11444635/
>
> v2 -> v3:
> - Refine comments per Igor's suggestion.
>
> v1 -> v2:
> - change "_" in option names to "-"
> - check if option value is too large to fit in SMBIOS type 4 speed
> fields.
>
> Cc: "Michael S. Tsirkin" <mst@redhat.com>
> Cc: Igor Mammedov <imammedo@redhat.com>
>
> Ying Fang (2):
> hw/smbios: add options for type 4 max-speed and current-speed
> tests/bios-tables-test: add smbios cpu speed test
>
> hw/smbios/smbios.c | 36 ++++++++++++++++++++++++++++++----
> qemu-options.hx | 2 +-
> tests/bios-tables-test.c | 42 ++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 75 insertions(+), 5 deletions(-)
>
> --
> 2.23.0