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hw/smbios: Fix thread count in type4

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>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: c97294ec1b ("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>
This commit is contained in:
Zhao Liu
2023-06-28 21:54:36 +08:00
committed by Michael S. Tsirkin
parent d79a284a44
commit 7298fd7de5
1 changed files with 5 additions and 2 deletions
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7
hw/smbios/smbios.c
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@@ -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;