diff mbox series

[v7,07/16] i386: Support modules_per_die in X86CPUTopoInfo

Message ID 20240108082727.420817-8-zhao1.liu@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series Support smp.clusters for x86 in QEMU | expand

Commit Message

Zhao Liu Jan. 8, 2024, 8:27 a.m. UTC
From: Zhuocheng Ding <zhuocheng.ding@intel.com>

Support module level in i386 cpu topology structure "X86CPUTopoInfo".

Since x86 does not yet support the "clusters" parameter in "-smp",
X86CPUTopoInfo.modules_per_die is currently always 1. Therefore, the
module level width in APIC ID, which can be calculated by
"apicid_bitwidth_for_count(topo_info->modules_per_die)", is always 0
for now, so we can directly add APIC ID related helpers to support
module level parsing.

In addition, update topology structure in test-x86-topo.c.

Signed-off-by: Zhuocheng Ding <zhuocheng.ding@intel.com>
Co-developed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Tested-by: Babu Moger <babu.moger@amd.com>
Tested-by: Yongwei Ma <yongwei.ma@intel.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
---
Changes since v3:
 * Drop the description about not exposing module level in commit
   message.
 * Update topology related calculation in newly added helpers:
   num_cpus_by_topo_level() and apicid_offset_by_topo_level().

Changes since v1:
 * Include module level related helpers (apicid_module_width() and
   apicid_module_offset()) in this patch. (Yanan)
---
 hw/i386/x86.c              |  3 ++-
 include/hw/i386/topology.h | 22 +++++++++++++++----
 target/i386/cpu.c          | 17 +++++++++-----
 tests/unit/test-x86-topo.c | 45 ++++++++++++++++++++------------------
 4 files changed, 55 insertions(+), 32 deletions(-)

Comments

Xiaoyao Li Jan. 11, 2024, 5:53 a.m. UTC | #1
On 1/8/2024 4:27 PM, Zhao Liu wrote:
> From: Zhuocheng Ding <zhuocheng.ding@intel.com>
> 
> Support module level in i386 cpu topology structure "X86CPUTopoInfo".
> 
> Since x86 does not yet support the "clusters" parameter in "-smp",
> X86CPUTopoInfo.modules_per_die is currently always 1. Therefore, the
> module level width in APIC ID, which can be calculated by
> "apicid_bitwidth_for_count(topo_info->modules_per_die)", is always 0
> for now, so we can directly add APIC ID related helpers to support
> module level parsing.
> 
> In addition, update topology structure in test-x86-topo.c.
> 
> Signed-off-by: Zhuocheng Ding <zhuocheng.ding@intel.com>
> Co-developed-by: Zhao Liu <zhao1.liu@intel.com>
> Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
> Tested-by: Babu Moger <babu.moger@amd.com>
> Tested-by: Yongwei Ma <yongwei.ma@intel.com>
> Acked-by: Michael S. Tsirkin <mst@redhat.com>
> ---
> Changes since v3:
>   * Drop the description about not exposing module level in commit
>     message.
>   * Update topology related calculation in newly added helpers:
>     num_cpus_by_topo_level() and apicid_offset_by_topo_level().
> 
> Changes since v1:
>   * Include module level related helpers (apicid_module_width() and
>     apicid_module_offset()) in this patch. (Yanan)
> ---
>   hw/i386/x86.c              |  3 ++-
>   include/hw/i386/topology.h | 22 +++++++++++++++----
>   target/i386/cpu.c          | 17 +++++++++-----
>   tests/unit/test-x86-topo.c | 45 ++++++++++++++++++++------------------
>   4 files changed, 55 insertions(+), 32 deletions(-)
> 
> diff --git a/hw/i386/x86.c b/hw/i386/x86.c
> index 1d19a8c609b1..85b847ac7914 100644
> --- a/hw/i386/x86.c
> +++ b/hw/i386/x86.c
> @@ -72,7 +72,8 @@ static void init_topo_info(X86CPUTopoInfo *topo_info,
>       MachineState *ms = MACHINE(x86ms);
>   
>       topo_info->dies_per_pkg = ms->smp.dies;
> -    topo_info->cores_per_die = ms->smp.cores;
> +    topo_info->modules_per_die = ms->smp.clusters;
> +    topo_info->cores_per_module = ms->smp.cores;
>       topo_info->threads_per_core = ms->smp.threads;
>   }
>   
> diff --git a/include/hw/i386/topology.h b/include/hw/i386/topology.h
> index d4eeb7ab8290..517e51768c13 100644
> --- a/include/hw/i386/topology.h
> +++ b/include/hw/i386/topology.h
> @@ -56,7 +56,8 @@ typedef struct X86CPUTopoIDs {
>   
>   typedef struct X86CPUTopoInfo {
>       unsigned dies_per_pkg;
> -    unsigned cores_per_die;
> +    unsigned modules_per_die;
> +    unsigned cores_per_module;
>       unsigned threads_per_core;
>   } X86CPUTopoInfo;
>   
> @@ -77,7 +78,13 @@ static inline unsigned apicid_smt_width(X86CPUTopoInfo *topo_info)
>   /* Bit width of the Core_ID field */
>   static inline unsigned apicid_core_width(X86CPUTopoInfo *topo_info)
>   {
> -    return apicid_bitwidth_for_count(topo_info->cores_per_die);
> +    return apicid_bitwidth_for_count(topo_info->cores_per_module);
> +}
> +
> +/* Bit width of the Module_ID (cluster ID) field */
> +static inline unsigned apicid_module_width(X86CPUTopoInfo *topo_info)
> +{
> +    return apicid_bitwidth_for_count(topo_info->modules_per_die);
>   }
>   
>   /* Bit width of the Die_ID field */
> @@ -92,10 +99,16 @@ static inline unsigned apicid_core_offset(X86CPUTopoInfo *topo_info)
>       return apicid_smt_width(topo_info);
>   }
>   
> +/* Bit offset of the Module_ID (cluster ID) field */
> +static inline unsigned apicid_module_offset(X86CPUTopoInfo *topo_info)
> +{
> +    return apicid_core_offset(topo_info) + apicid_core_width(topo_info);
> +}
> +
>   /* Bit offset of the Die_ID field */
>   static inline unsigned apicid_die_offset(X86CPUTopoInfo *topo_info)
>   {
> -    return apicid_core_offset(topo_info) + apicid_core_width(topo_info);
> +    return apicid_module_offset(topo_info) + apicid_module_width(topo_info);
>   }
>   
>   /* Bit offset of the Pkg_ID (socket ID) field */
> @@ -127,7 +140,8 @@ static inline void x86_topo_ids_from_idx(X86CPUTopoInfo *topo_info,
>                                            X86CPUTopoIDs *topo_ids)
>   {
>       unsigned nr_dies = topo_info->dies_per_pkg;
> -    unsigned nr_cores = topo_info->cores_per_die;
> +    unsigned nr_cores = topo_info->cores_per_module *
> +                        topo_info->modules_per_die;
>       unsigned nr_threads = topo_info->threads_per_core;
>   
>       topo_ids->pkg_id = cpu_index / (nr_dies * nr_cores * nr_threads);
> diff --git a/target/i386/cpu.c b/target/i386/cpu.c
> index 0a2ce9b92b1f..294ca6b8947a 100644
> --- a/target/i386/cpu.c
> +++ b/target/i386/cpu.c
> @@ -278,10 +278,11 @@ static uint32_t num_cpus_by_topo_level(X86CPUTopoInfo *topo_info,
>       case CPU_TOPO_LEVEL_CORE:
>           return topo_info->threads_per_core;
>       case CPU_TOPO_LEVEL_DIE:
> -        return topo_info->threads_per_core * topo_info->cores_per_die;
> +        return topo_info->threads_per_core * topo_info->cores_per_module *
> +               topo_info->modules_per_die;
>       case CPU_TOPO_LEVEL_PACKAGE:
> -        return topo_info->threads_per_core * topo_info->cores_per_die *
> -               topo_info->dies_per_pkg;
> +        return topo_info->threads_per_core * topo_info->cores_per_module *
> +               topo_info->modules_per_die * topo_info->dies_per_pkg;
>       default:
>           g_assert_not_reached();
>       }
> @@ -450,7 +451,9 @@ static void encode_cache_cpuid8000001d(CPUCacheInfo *cache,
>   
>       /* L3 is shared among multiple cores */
>       if (cache->level == 3) {
> -        l3_threads = topo_info->cores_per_die * topo_info->threads_per_core;
> +        l3_threads = topo_info->modules_per_die *
> +                     topo_info->cores_per_module *
> +                     topo_info->threads_per_core;
>           *eax |= (l3_threads - 1) << 14;
>       } else {
>           *eax |= ((topo_info->threads_per_core - 1) << 14);
> @@ -6131,10 +6134,12 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
>       uint32_t cpus_per_pkg;
>   
>       topo_info.dies_per_pkg = env->nr_dies;
> -    topo_info.cores_per_die = cs->nr_cores / env->nr_dies;
> +    topo_info.modules_per_die = env->nr_modules;
> +    topo_info.cores_per_module = cs->nr_cores / env->nr_dies / env->nr_modules;
>       topo_info.threads_per_core = cs->nr_threads;
>   
> -    cores_per_pkg = topo_info.cores_per_die * topo_info.dies_per_pkg;
> +    cores_per_pkg = topo_info.cores_per_module * topo_info.modules_per_die *
> +                    topo_info.dies_per_pkg;

Nit. maybe we can introduce some helper function like

static inline uint32_t topo_info_cores_per_pkg(X86CPUTopoInfo *topo_info) {
	return topo_info.cores_per_module * topo_info.modules_per_die *
                topo_info.dies_per_pkg;
}

so we don't need to care how it calculates.

Besides,

Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>

>       cpus_per_pkg = cores_per_pkg * topo_info.threads_per_core;
>   
>       /* Calculate & apply limits for different index ranges */
> diff --git a/tests/unit/test-x86-topo.c b/tests/unit/test-x86-topo.c
> index 2b104f86d7c2..f21b8a5d95c2 100644
> --- a/tests/unit/test-x86-topo.c
> +++ b/tests/unit/test-x86-topo.c
> @@ -30,13 +30,16 @@ static void test_topo_bits(void)
>   {
>       X86CPUTopoInfo topo_info = {0};
>   
> -    /* simple tests for 1 thread per core, 1 core per die, 1 die per package */
> -    topo_info = (X86CPUTopoInfo) {1, 1, 1};
> +    /*
> +     * simple tests for 1 thread per core, 1 core per module,
> +     *                  1 module per die, 1 die per package
> +     */
> +    topo_info = (X86CPUTopoInfo) {1, 1, 1, 1};
>       g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 0);
>       g_assert_cmpuint(apicid_core_width(&topo_info), ==, 0);
>       g_assert_cmpuint(apicid_die_width(&topo_info), ==, 0);
>   
> -    topo_info = (X86CPUTopoInfo) {1, 1, 1};
> +    topo_info = (X86CPUTopoInfo) {1, 1, 1, 1};
>       g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 0), ==, 0);
>       g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1), ==, 1);
>       g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2), ==, 2);
> @@ -45,39 +48,39 @@ static void test_topo_bits(void)
>   
>       /* Test field width calculation for multiple values
>        */
> -    topo_info = (X86CPUTopoInfo) {1, 1, 2};
> +    topo_info = (X86CPUTopoInfo) {1, 1, 1, 2};
>       g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 1);
> -    topo_info = (X86CPUTopoInfo) {1, 1, 3};
> +    topo_info = (X86CPUTopoInfo) {1, 1, 1, 3};
>       g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 2);
> -    topo_info = (X86CPUTopoInfo) {1, 1, 4};
> +    topo_info = (X86CPUTopoInfo) {1, 1, 1, 4};
>       g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 2);
>   
> -    topo_info = (X86CPUTopoInfo) {1, 1, 14};
> +    topo_info = (X86CPUTopoInfo) {1, 1, 1, 14};
>       g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 4);
> -    topo_info = (X86CPUTopoInfo) {1, 1, 15};
> +    topo_info = (X86CPUTopoInfo) {1, 1, 1, 15};
>       g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 4);
> -    topo_info = (X86CPUTopoInfo) {1, 1, 16};
> +    topo_info = (X86CPUTopoInfo) {1, 1, 1, 16};
>       g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 4);
> -    topo_info = (X86CPUTopoInfo) {1, 1, 17};
> +    topo_info = (X86CPUTopoInfo) {1, 1, 1, 17};
>       g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 5);
>   
>   
> -    topo_info = (X86CPUTopoInfo) {1, 30, 2};
> +    topo_info = (X86CPUTopoInfo) {1, 1, 30, 2};
>       g_assert_cmpuint(apicid_core_width(&topo_info), ==, 5);
> -    topo_info = (X86CPUTopoInfo) {1, 31, 2};
> +    topo_info = (X86CPUTopoInfo) {1, 1, 31, 2};
>       g_assert_cmpuint(apicid_core_width(&topo_info), ==, 5);
> -    topo_info = (X86CPUTopoInfo) {1, 32, 2};
> +    topo_info = (X86CPUTopoInfo) {1, 1, 32, 2};
>       g_assert_cmpuint(apicid_core_width(&topo_info), ==, 5);
> -    topo_info = (X86CPUTopoInfo) {1, 33, 2};
> +    topo_info = (X86CPUTopoInfo) {1, 1, 33, 2};
>       g_assert_cmpuint(apicid_core_width(&topo_info), ==, 6);
>   
> -    topo_info = (X86CPUTopoInfo) {1, 30, 2};
> +    topo_info = (X86CPUTopoInfo) {1, 1, 30, 2};
>       g_assert_cmpuint(apicid_die_width(&topo_info), ==, 0);
> -    topo_info = (X86CPUTopoInfo) {2, 30, 2};
> +    topo_info = (X86CPUTopoInfo) {2, 1, 30, 2};
>       g_assert_cmpuint(apicid_die_width(&topo_info), ==, 1);
> -    topo_info = (X86CPUTopoInfo) {3, 30, 2};
> +    topo_info = (X86CPUTopoInfo) {3, 1, 30, 2};
>       g_assert_cmpuint(apicid_die_width(&topo_info), ==, 2);
> -    topo_info = (X86CPUTopoInfo) {4, 30, 2};
> +    topo_info = (X86CPUTopoInfo) {4, 1, 30, 2};
>       g_assert_cmpuint(apicid_die_width(&topo_info), ==, 2);
>   
>       /* build a weird topology and see if IDs are calculated correctly
> @@ -85,18 +88,18 @@ static void test_topo_bits(void)
>   
>       /* This will use 2 bits for thread ID and 3 bits for core ID
>        */
> -    topo_info = (X86CPUTopoInfo) {1, 6, 3};
> +    topo_info = (X86CPUTopoInfo) {1, 1, 6, 3};
>       g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 2);
>       g_assert_cmpuint(apicid_core_offset(&topo_info), ==, 2);
>       g_assert_cmpuint(apicid_die_offset(&topo_info), ==, 5);
>       g_assert_cmpuint(apicid_pkg_offset(&topo_info), ==, 5);
>   
> -    topo_info = (X86CPUTopoInfo) {1, 6, 3};
> +    topo_info = (X86CPUTopoInfo) {1, 1, 6, 3};
>       g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 0), ==, 0);
>       g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1), ==, 1);
>       g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2), ==, 2);
>   
> -    topo_info = (X86CPUTopoInfo) {1, 6, 3};
> +    topo_info = (X86CPUTopoInfo) {1, 1, 6, 3};
>       g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1 * 3 + 0), ==,
>                        (1 << 2) | 0);
>       g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1 * 3 + 1), ==,
Zhao Liu Jan. 11, 2024, 9:18 a.m. UTC | #2
Hi Xiaoyao,

On Thu, Jan 11, 2024 at 01:53:53PM +0800, Xiaoyao Li wrote:

> > -    cores_per_pkg = topo_info.cores_per_die * topo_info.dies_per_pkg;
> > +    cores_per_pkg = topo_info.cores_per_module * topo_info.modules_per_die *
> > +                    topo_info.dies_per_pkg;
> 
> Nit. maybe we can introduce some helper function like
> 
> static inline uint32_t topo_info_cores_per_pkg(X86CPUTopoInfo *topo_info) {
> 	return topo_info.cores_per_module * topo_info.modules_per_die *
>                topo_info.dies_per_pkg;
> }
> 
> so we don't need to care how it calculates.

Yeah, will add this helper, maybe in another patch.

> 
> Besides,
> 
> Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>

Thanks!

-Zhao
diff mbox series

Patch

diff --git a/hw/i386/x86.c b/hw/i386/x86.c
index 1d19a8c609b1..85b847ac7914 100644
--- a/hw/i386/x86.c
+++ b/hw/i386/x86.c
@@ -72,7 +72,8 @@  static void init_topo_info(X86CPUTopoInfo *topo_info,
     MachineState *ms = MACHINE(x86ms);
 
     topo_info->dies_per_pkg = ms->smp.dies;
-    topo_info->cores_per_die = ms->smp.cores;
+    topo_info->modules_per_die = ms->smp.clusters;
+    topo_info->cores_per_module = ms->smp.cores;
     topo_info->threads_per_core = ms->smp.threads;
 }
 
diff --git a/include/hw/i386/topology.h b/include/hw/i386/topology.h
index d4eeb7ab8290..517e51768c13 100644
--- a/include/hw/i386/topology.h
+++ b/include/hw/i386/topology.h
@@ -56,7 +56,8 @@  typedef struct X86CPUTopoIDs {
 
 typedef struct X86CPUTopoInfo {
     unsigned dies_per_pkg;
-    unsigned cores_per_die;
+    unsigned modules_per_die;
+    unsigned cores_per_module;
     unsigned threads_per_core;
 } X86CPUTopoInfo;
 
@@ -77,7 +78,13 @@  static inline unsigned apicid_smt_width(X86CPUTopoInfo *topo_info)
 /* Bit width of the Core_ID field */
 static inline unsigned apicid_core_width(X86CPUTopoInfo *topo_info)
 {
-    return apicid_bitwidth_for_count(topo_info->cores_per_die);
+    return apicid_bitwidth_for_count(topo_info->cores_per_module);
+}
+
+/* Bit width of the Module_ID (cluster ID) field */
+static inline unsigned apicid_module_width(X86CPUTopoInfo *topo_info)
+{
+    return apicid_bitwidth_for_count(topo_info->modules_per_die);
 }
 
 /* Bit width of the Die_ID field */
@@ -92,10 +99,16 @@  static inline unsigned apicid_core_offset(X86CPUTopoInfo *topo_info)
     return apicid_smt_width(topo_info);
 }
 
+/* Bit offset of the Module_ID (cluster ID) field */
+static inline unsigned apicid_module_offset(X86CPUTopoInfo *topo_info)
+{
+    return apicid_core_offset(topo_info) + apicid_core_width(topo_info);
+}
+
 /* Bit offset of the Die_ID field */
 static inline unsigned apicid_die_offset(X86CPUTopoInfo *topo_info)
 {
-    return apicid_core_offset(topo_info) + apicid_core_width(topo_info);
+    return apicid_module_offset(topo_info) + apicid_module_width(topo_info);
 }
 
 /* Bit offset of the Pkg_ID (socket ID) field */
@@ -127,7 +140,8 @@  static inline void x86_topo_ids_from_idx(X86CPUTopoInfo *topo_info,
                                          X86CPUTopoIDs *topo_ids)
 {
     unsigned nr_dies = topo_info->dies_per_pkg;
-    unsigned nr_cores = topo_info->cores_per_die;
+    unsigned nr_cores = topo_info->cores_per_module *
+                        topo_info->modules_per_die;
     unsigned nr_threads = topo_info->threads_per_core;
 
     topo_ids->pkg_id = cpu_index / (nr_dies * nr_cores * nr_threads);
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 0a2ce9b92b1f..294ca6b8947a 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -278,10 +278,11 @@  static uint32_t num_cpus_by_topo_level(X86CPUTopoInfo *topo_info,
     case CPU_TOPO_LEVEL_CORE:
         return topo_info->threads_per_core;
     case CPU_TOPO_LEVEL_DIE:
-        return topo_info->threads_per_core * topo_info->cores_per_die;
+        return topo_info->threads_per_core * topo_info->cores_per_module *
+               topo_info->modules_per_die;
     case CPU_TOPO_LEVEL_PACKAGE:
-        return topo_info->threads_per_core * topo_info->cores_per_die *
-               topo_info->dies_per_pkg;
+        return topo_info->threads_per_core * topo_info->cores_per_module *
+               topo_info->modules_per_die * topo_info->dies_per_pkg;
     default:
         g_assert_not_reached();
     }
@@ -450,7 +451,9 @@  static void encode_cache_cpuid8000001d(CPUCacheInfo *cache,
 
     /* L3 is shared among multiple cores */
     if (cache->level == 3) {
-        l3_threads = topo_info->cores_per_die * topo_info->threads_per_core;
+        l3_threads = topo_info->modules_per_die *
+                     topo_info->cores_per_module *
+                     topo_info->threads_per_core;
         *eax |= (l3_threads - 1) << 14;
     } else {
         *eax |= ((topo_info->threads_per_core - 1) << 14);
@@ -6131,10 +6134,12 @@  void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
     uint32_t cpus_per_pkg;
 
     topo_info.dies_per_pkg = env->nr_dies;
-    topo_info.cores_per_die = cs->nr_cores / env->nr_dies;
+    topo_info.modules_per_die = env->nr_modules;
+    topo_info.cores_per_module = cs->nr_cores / env->nr_dies / env->nr_modules;
     topo_info.threads_per_core = cs->nr_threads;
 
-    cores_per_pkg = topo_info.cores_per_die * topo_info.dies_per_pkg;
+    cores_per_pkg = topo_info.cores_per_module * topo_info.modules_per_die *
+                    topo_info.dies_per_pkg;
     cpus_per_pkg = cores_per_pkg * topo_info.threads_per_core;
 
     /* Calculate & apply limits for different index ranges */
diff --git a/tests/unit/test-x86-topo.c b/tests/unit/test-x86-topo.c
index 2b104f86d7c2..f21b8a5d95c2 100644
--- a/tests/unit/test-x86-topo.c
+++ b/tests/unit/test-x86-topo.c
@@ -30,13 +30,16 @@  static void test_topo_bits(void)
 {
     X86CPUTopoInfo topo_info = {0};
 
-    /* simple tests for 1 thread per core, 1 core per die, 1 die per package */
-    topo_info = (X86CPUTopoInfo) {1, 1, 1};
+    /*
+     * simple tests for 1 thread per core, 1 core per module,
+     *                  1 module per die, 1 die per package
+     */
+    topo_info = (X86CPUTopoInfo) {1, 1, 1, 1};
     g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 0);
     g_assert_cmpuint(apicid_core_width(&topo_info), ==, 0);
     g_assert_cmpuint(apicid_die_width(&topo_info), ==, 0);
 
-    topo_info = (X86CPUTopoInfo) {1, 1, 1};
+    topo_info = (X86CPUTopoInfo) {1, 1, 1, 1};
     g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 0), ==, 0);
     g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1), ==, 1);
     g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2), ==, 2);
@@ -45,39 +48,39 @@  static void test_topo_bits(void)
 
     /* Test field width calculation for multiple values
      */
-    topo_info = (X86CPUTopoInfo) {1, 1, 2};
+    topo_info = (X86CPUTopoInfo) {1, 1, 1, 2};
     g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 1);
-    topo_info = (X86CPUTopoInfo) {1, 1, 3};
+    topo_info = (X86CPUTopoInfo) {1, 1, 1, 3};
     g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 2);
-    topo_info = (X86CPUTopoInfo) {1, 1, 4};
+    topo_info = (X86CPUTopoInfo) {1, 1, 1, 4};
     g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 2);
 
-    topo_info = (X86CPUTopoInfo) {1, 1, 14};
+    topo_info = (X86CPUTopoInfo) {1, 1, 1, 14};
     g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 4);
-    topo_info = (X86CPUTopoInfo) {1, 1, 15};
+    topo_info = (X86CPUTopoInfo) {1, 1, 1, 15};
     g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 4);
-    topo_info = (X86CPUTopoInfo) {1, 1, 16};
+    topo_info = (X86CPUTopoInfo) {1, 1, 1, 16};
     g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 4);
-    topo_info = (X86CPUTopoInfo) {1, 1, 17};
+    topo_info = (X86CPUTopoInfo) {1, 1, 1, 17};
     g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 5);
 
 
-    topo_info = (X86CPUTopoInfo) {1, 30, 2};
+    topo_info = (X86CPUTopoInfo) {1, 1, 30, 2};
     g_assert_cmpuint(apicid_core_width(&topo_info), ==, 5);
-    topo_info = (X86CPUTopoInfo) {1, 31, 2};
+    topo_info = (X86CPUTopoInfo) {1, 1, 31, 2};
     g_assert_cmpuint(apicid_core_width(&topo_info), ==, 5);
-    topo_info = (X86CPUTopoInfo) {1, 32, 2};
+    topo_info = (X86CPUTopoInfo) {1, 1, 32, 2};
     g_assert_cmpuint(apicid_core_width(&topo_info), ==, 5);
-    topo_info = (X86CPUTopoInfo) {1, 33, 2};
+    topo_info = (X86CPUTopoInfo) {1, 1, 33, 2};
     g_assert_cmpuint(apicid_core_width(&topo_info), ==, 6);
 
-    topo_info = (X86CPUTopoInfo) {1, 30, 2};
+    topo_info = (X86CPUTopoInfo) {1, 1, 30, 2};
     g_assert_cmpuint(apicid_die_width(&topo_info), ==, 0);
-    topo_info = (X86CPUTopoInfo) {2, 30, 2};
+    topo_info = (X86CPUTopoInfo) {2, 1, 30, 2};
     g_assert_cmpuint(apicid_die_width(&topo_info), ==, 1);
-    topo_info = (X86CPUTopoInfo) {3, 30, 2};
+    topo_info = (X86CPUTopoInfo) {3, 1, 30, 2};
     g_assert_cmpuint(apicid_die_width(&topo_info), ==, 2);
-    topo_info = (X86CPUTopoInfo) {4, 30, 2};
+    topo_info = (X86CPUTopoInfo) {4, 1, 30, 2};
     g_assert_cmpuint(apicid_die_width(&topo_info), ==, 2);
 
     /* build a weird topology and see if IDs are calculated correctly
@@ -85,18 +88,18 @@  static void test_topo_bits(void)
 
     /* This will use 2 bits for thread ID and 3 bits for core ID
      */
-    topo_info = (X86CPUTopoInfo) {1, 6, 3};
+    topo_info = (X86CPUTopoInfo) {1, 1, 6, 3};
     g_assert_cmpuint(apicid_smt_width(&topo_info), ==, 2);
     g_assert_cmpuint(apicid_core_offset(&topo_info), ==, 2);
     g_assert_cmpuint(apicid_die_offset(&topo_info), ==, 5);
     g_assert_cmpuint(apicid_pkg_offset(&topo_info), ==, 5);
 
-    topo_info = (X86CPUTopoInfo) {1, 6, 3};
+    topo_info = (X86CPUTopoInfo) {1, 1, 6, 3};
     g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 0), ==, 0);
     g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1), ==, 1);
     g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2), ==, 2);
 
-    topo_info = (X86CPUTopoInfo) {1, 6, 3};
+    topo_info = (X86CPUTopoInfo) {1, 1, 6, 3};
     g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1 * 3 + 0), ==,
                      (1 << 2) | 0);
     g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1 * 3 + 1), ==,