From 7298fd7de5551c4501f54381228458e3c21cab4b Mon Sep 17 00:00:00 2001 From: Zhao Liu Date: Wed, 28 Jun 2023 21:54:36 +0800 Subject: [PATCH] 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 Message-Id: <20230628135437.1145805-4-zhao1.liu@linux.intel.com> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/smbios/smbios.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/hw/smbios/smbios.c b/hw/smbios/smbios.c index d67415d44d..3aae9328c0 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; -- 2.11.0