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| author | Zhao Liu <zhao1.liu@intel.com> | 2023-06-28 21:54:36 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-07-10 16:17:08 -0400 |
| commit | 7298fd7de5551c4501f54381228458e3c21cab4b (patch) | |
| tree | f896c08d7f214fe2f24389c95b5bef9f5508e6aa /hw | |
| parent | d79a284a44bb7d88b233fb6bb12ea3723f43469d (diff) | |
| download | qemu-7298fd7de5551c4501f54381228458e3c21cab4b.zip qemu-7298fd7de5551c4501f54381228458e3c21cab4b.tar.gz qemu-7298fd7de5551c4501f54381228458e3c21cab4b.tar.bz2 | |
hw/smbios: Fix thread count in type4
>From SMBIOS 3.0 specification, thread count field means:
Thread Count is the total number of threads detected by the BIOS for
this processor socket. It is a processor-wide count, not a
thread-per-core count. [1]
So here we should use threads per socket other than threads per core.
[1] SMBIOS 3.0.0, section 7.5.8, Processor Information - Thread Count
Fixes: c97294ec1b9e ("SMBIOS: Build aggregate smbios tables and entry point")
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20230628135437.1145805-4-zhao1.liu@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/smbios/smbios.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/hw/smbios/smbios.c b/hw/smbios/smbios.c index d67415d..3aae932 100644 --- a/hw/smbios/smbios.c +++ b/hw/smbios/smbios.c @@ -713,6 +713,7 @@ static void smbios_build_type_4_table(MachineState *ms, unsigned instance) { char sock_str[128]; size_t tbl_len = SMBIOS_TYPE_4_LEN_V28; + unsigned threads_per_socket; if (smbios_ep_type == SMBIOS_ENTRY_POINT_TYPE_64) { tbl_len = SMBIOS_TYPE_4_LEN_V30; @@ -747,17 +748,19 @@ static void smbios_build_type_4_table(MachineState *ms, unsigned instance) SMBIOS_TABLE_SET_STR(4, asset_tag_number_str, type4.asset); SMBIOS_TABLE_SET_STR(4, part_number_str, type4.part); + threads_per_socket = machine_topo_get_threads_per_socket(ms); + t->core_count = (ms->smp.cores > 255) ? 0xFF : ms->smp.cores; t->core_enabled = t->core_count; - t->thread_count = (ms->smp.threads > 255) ? 0xFF : ms->smp.threads; + t->thread_count = (threads_per_socket > 255) ? 0xFF : threads_per_socket; t->processor_characteristics = cpu_to_le16(0x02); /* Unknown */ t->processor_family2 = cpu_to_le16(0x01); /* Other */ if (tbl_len == SMBIOS_TYPE_4_LEN_V30) { t->core_count2 = t->core_enabled2 = cpu_to_le16(ms->smp.cores); - t->thread_count2 = cpu_to_le16(ms->smp.threads); + t->thread_count2 = cpu_to_le16(threads_per_socket); } SMBIOS_BUILD_TABLE_POST; |