diff options
| -rw-r--r-- | hw/i386/pc.c | 27 | ||||
| -rw-r--r-- | include/hw/i386/topology.h | 76 | ||||
| -rw-r--r-- | target/i386/cpu.c | 13 | ||||
| -rw-r--r-- | tests/test-x86-cpuid.c | 84 |
4 files changed, 124 insertions, 76 deletions
diff --git a/hw/i386/pc.c b/hw/i386/pc.c index f91ff5e06e..e8378f6a0a 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -930,7 +930,7 @@ static uint32_t x86_cpu_apic_id_from_index(PCMachineState *pcms, uint32_t correct_id; static bool warned; - correct_id = x86_apicid_from_cpu_idx(ms->smp.cores, + correct_id = x86_apicid_from_cpu_idx(pcms->smp_dies, ms->smp.cores, ms->smp.threads, cpu_index); if (pcmc->compat_apic_id_mode) { if (cpu_index != correct_id && !warned && !qtest_enabled()) { @@ -2350,18 +2350,21 @@ static void pc_cpu_pre_plug(HotplugHandler *hotplug_dev, topo.die_id = cpu->die_id; topo.core_id = cpu->core_id; topo.smt_id = cpu->thread_id; - cpu->apic_id = apicid_from_topo_ids(smp_cores, smp_threads, &topo); + cpu->apic_id = apicid_from_topo_ids(pcms->smp_dies, smp_cores, + smp_threads, &topo); } cpu_slot = pc_find_cpu_slot(MACHINE(pcms), cpu->apic_id, &idx); if (!cpu_slot) { MachineState *ms = MACHINE(pcms); - x86_topo_ids_from_apicid(cpu->apic_id, smp_cores, smp_threads, &topo); - error_setg(errp, "Invalid CPU [socket: %u, core: %u, thread: %u] with" - " APIC ID %" PRIu32 ", valid index range 0:%d", - topo.pkg_id, topo.core_id, topo.smt_id, cpu->apic_id, - ms->possible_cpus->len - 1); + x86_topo_ids_from_apicid(cpu->apic_id, pcms->smp_dies, + smp_cores, smp_threads, &topo); + error_setg(errp, + "Invalid CPU [socket: %u, die: %u, core: %u, thread: %u] with" + " APIC ID %" PRIu32 ", valid index range 0:%d", + topo.pkg_id, topo.die_id, topo.core_id, topo.smt_id, + cpu->apic_id, ms->possible_cpus->len - 1); return; } @@ -2377,7 +2380,8 @@ static void pc_cpu_pre_plug(HotplugHandler *hotplug_dev, /* TODO: move socket_id/core_id/thread_id checks into x86_cpu_realizefn() * once -smp refactoring is complete and there will be CPU private * CPUState::nr_cores and CPUState::nr_threads fields instead of globals */ - x86_topo_ids_from_apicid(cpu->apic_id, smp_cores, smp_threads, &topo); + x86_topo_ids_from_apicid(cpu->apic_id, pcms->smp_dies, + smp_cores, smp_threads, &topo); if (cpu->socket_id != -1 && cpu->socket_id != topo.pkg_id) { error_setg(errp, "property socket-id: %u doesn't match set apic-id:" " 0x%x (socket-id: %u)", cpu->socket_id, cpu->apic_id, topo.pkg_id); @@ -2743,10 +2747,12 @@ pc_cpu_index_to_props(MachineState *ms, unsigned cpu_index) static int64_t pc_get_default_cpu_node_id(const MachineState *ms, int idx) { X86CPUTopoInfo topo; + PCMachineState *pcms = PC_MACHINE(ms); assert(idx < ms->possible_cpus->len); x86_topo_ids_from_apicid(ms->possible_cpus->cpus[idx].arch_id, - ms->smp.cores, ms->smp.threads, &topo); + pcms->smp_dies, ms->smp.cores, + ms->smp.threads, &topo); return topo.pkg_id % nb_numa_nodes; } @@ -2775,7 +2781,8 @@ static const CPUArchIdList *pc_possible_cpu_arch_ids(MachineState *ms) ms->possible_cpus->cpus[i].vcpus_count = 1; ms->possible_cpus->cpus[i].arch_id = x86_cpu_apic_id_from_index(pcms, i); x86_topo_ids_from_apicid(ms->possible_cpus->cpus[i].arch_id, - ms->smp.cores, ms->smp.threads, &topo); + pcms->smp_dies, ms->smp.cores, + ms->smp.threads, &topo); ms->possible_cpus->cpus[i].props.has_socket_id = true; ms->possible_cpus->cpus[i].props.socket_id = topo.pkg_id; ms->possible_cpus->cpus[i].props.has_die_id = true; diff --git a/include/hw/i386/topology.h b/include/hw/i386/topology.h index c9fb41588e..4ff5b2da6c 100644 --- a/include/hw/i386/topology.h +++ b/include/hw/i386/topology.h @@ -63,88 +63,120 @@ static unsigned apicid_bitwidth_for_count(unsigned count) /* Bit width of the SMT_ID (thread ID) field on the APIC ID */ -static inline unsigned apicid_smt_width(unsigned nr_cores, unsigned nr_threads) +static inline unsigned apicid_smt_width(unsigned nr_dies, + unsigned nr_cores, + unsigned nr_threads) { return apicid_bitwidth_for_count(nr_threads); } /* Bit width of the Core_ID field */ -static inline unsigned apicid_core_width(unsigned nr_cores, unsigned nr_threads) +static inline unsigned apicid_core_width(unsigned nr_dies, + unsigned nr_cores, + unsigned nr_threads) { return apicid_bitwidth_for_count(nr_cores); } +/* Bit width of the Die_ID field */ +static inline unsigned apicid_die_width(unsigned nr_dies, + unsigned nr_cores, + unsigned nr_threads) +{ + return apicid_bitwidth_for_count(nr_dies); +} + /* Bit offset of the Core_ID field */ -static inline unsigned apicid_core_offset(unsigned nr_cores, +static inline unsigned apicid_core_offset(unsigned nr_dies, + unsigned nr_cores, unsigned nr_threads) { - return apicid_smt_width(nr_cores, nr_threads); + return apicid_smt_width(nr_dies, nr_cores, nr_threads); +} + +/* Bit offset of the Die_ID field */ +static inline unsigned apicid_die_offset(unsigned nr_dies, + unsigned nr_cores, + unsigned nr_threads) +{ + return apicid_core_offset(nr_dies, nr_cores, nr_threads) + + apicid_core_width(nr_dies, nr_cores, nr_threads); } /* Bit offset of the Pkg_ID (socket ID) field */ -static inline unsigned apicid_pkg_offset(unsigned nr_cores, unsigned nr_threads) +static inline unsigned apicid_pkg_offset(unsigned nr_dies, + unsigned nr_cores, + unsigned nr_threads) { - return apicid_core_offset(nr_cores, nr_threads) + - apicid_core_width(nr_cores, nr_threads); + return apicid_die_offset(nr_dies, nr_cores, nr_threads) + + apicid_die_width(nr_dies, nr_cores, nr_threads); } /* Make APIC ID for the CPU based on Pkg_ID, Core_ID, SMT_ID * * The caller must make sure core_id < nr_cores and smt_id < nr_threads. */ -static inline apic_id_t apicid_from_topo_ids(unsigned nr_cores, +static inline apic_id_t apicid_from_topo_ids(unsigned nr_dies, + unsigned nr_cores, unsigned nr_threads, const X86CPUTopoInfo *topo) { - return (topo->pkg_id << apicid_pkg_offset(nr_cores, nr_threads)) | - (topo->core_id << apicid_core_offset(nr_cores, nr_threads)) | + return (topo->pkg_id << apicid_pkg_offset(nr_dies, nr_cores, nr_threads)) | + (topo->die_id << apicid_die_offset(nr_dies, nr_cores, nr_threads)) | + (topo->core_id << apicid_core_offset(nr_dies, nr_cores, nr_threads)) | topo->smt_id; } /* Calculate thread/core/package IDs for a specific topology, * based on (contiguous) CPU index */ -static inline void x86_topo_ids_from_idx(unsigned nr_cores, +static inline void x86_topo_ids_from_idx(unsigned nr_dies, + unsigned nr_cores, unsigned nr_threads, unsigned cpu_index, X86CPUTopoInfo *topo) { - unsigned core_index = cpu_index / nr_threads; + topo->pkg_id = cpu_index / (nr_dies * nr_cores * nr_threads); + topo->die_id = cpu_index / (nr_cores * nr_threads) % nr_dies; + topo->core_id = cpu_index / nr_threads % nr_cores; topo->smt_id = cpu_index % nr_threads; - topo->core_id = core_index % nr_cores; - topo->pkg_id = core_index / nr_cores; } /* Calculate thread/core/package IDs for a specific topology, * based on APIC ID */ static inline void x86_topo_ids_from_apicid(apic_id_t apicid, + unsigned nr_dies, unsigned nr_cores, unsigned nr_threads, X86CPUTopoInfo *topo) { topo->smt_id = apicid & - ~(0xFFFFFFFFUL << apicid_smt_width(nr_cores, nr_threads)); - topo->core_id = (apicid >> apicid_core_offset(nr_cores, nr_threads)) & - ~(0xFFFFFFFFUL << apicid_core_width(nr_cores, nr_threads)); - topo->pkg_id = apicid >> apicid_pkg_offset(nr_cores, nr_threads); - topo->die_id = 0; + ~(0xFFFFFFFFUL << apicid_smt_width(nr_dies, nr_cores, nr_threads)); + topo->core_id = + (apicid >> apicid_core_offset(nr_dies, nr_cores, nr_threads)) & + ~(0xFFFFFFFFUL << apicid_core_width(nr_dies, nr_cores, nr_threads)); + topo->die_id = + (apicid >> apicid_die_offset(nr_dies, nr_cores, nr_threads)) & + ~(0xFFFFFFFFUL << apicid_die_width(nr_dies, nr_cores, nr_threads)); + topo->pkg_id = apicid >> apicid_pkg_offset(nr_dies, nr_cores, nr_threads); } /* Make APIC ID for the CPU 'cpu_index' * * 'cpu_index' is a sequential, contiguous ID for the CPU. */ -static inline apic_id_t x86_apicid_from_cpu_idx(unsigned nr_cores, +static inline apic_id_t x86_apicid_from_cpu_idx(unsigned nr_dies, + unsigned nr_cores, unsigned nr_threads, unsigned cpu_index) { X86CPUTopoInfo topo; - x86_topo_ids_from_idx(nr_cores, nr_threads, cpu_index, &topo); - return apicid_from_topo_ids(nr_cores, nr_threads, &topo); + x86_topo_ids_from_idx(nr_dies, nr_cores, nr_threads, cpu_index, &topo); + return apicid_from_topo_ids(nr_dies, nr_cores, nr_threads, &topo); } #endif /* HW_I386_TOPOLOGY_H */ diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 6b3d0035e0..de1a469ae9 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -4267,7 +4267,7 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count, { X86CPU *cpu = env_archcpu(env); CPUState *cs = env_cpu(env); - uint32_t pkg_offset; + uint32_t die_offset; uint32_t limit; uint32_t signature[3]; @@ -4356,10 +4356,11 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count, eax, ebx, ecx, edx); break; case 3: /* L3 cache info */ - pkg_offset = apicid_pkg_offset(cs->nr_cores, cs->nr_threads); + die_offset = apicid_die_offset(env->nr_dies, + cs->nr_cores, cs->nr_threads); if (cpu->enable_l3_cache) { encode_cache_cpuid4(env->cache_info_cpuid4.l3_cache, - (1 << pkg_offset), cs->nr_cores, + (1 << die_offset), cs->nr_cores, eax, ebx, ecx, edx); break; } @@ -4441,12 +4442,14 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count, switch (count) { case 0: - *eax = apicid_core_offset(cs->nr_cores, cs->nr_threads); + *eax = apicid_core_offset(env->nr_dies, + cs->nr_cores, cs->nr_threads); *ebx = cs->nr_threads; *ecx |= CPUID_TOPOLOGY_LEVEL_SMT; break; case 1: - *eax = apicid_pkg_offset(cs->nr_cores, cs->nr_threads); + *eax = apicid_pkg_offset(env->nr_dies, + cs->nr_cores, cs->nr_threads); *ebx = cs->nr_cores * cs->nr_threads; *ecx |= CPUID_TOPOLOGY_LEVEL_CORE; break; diff --git a/tests/test-x86-cpuid.c b/tests/test-x86-cpuid.c index ff225006e4..1942287f33 100644 --- a/tests/test-x86-cpuid.c +++ b/tests/test-x86-cpuid.c @@ -28,74 +28,80 @@ static void test_topo_bits(void) { - /* simple tests for 1 thread per core, 1 core per socket */ - g_assert_cmpuint(apicid_smt_width(1, 1), ==, 0); - g_assert_cmpuint(apicid_core_width(1, 1), ==, 0); + /* simple tests for 1 thread per core, 1 core per die, 1 die per package */ + g_assert_cmpuint(apicid_smt_width(1, 1, 1), ==, 0); + g_assert_cmpuint(apicid_core_width(1, 1, 1), ==, 0); + g_assert_cmpuint(apicid_die_width(1, 1, 1), ==, 0); - g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 0), ==, 0); - g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 1), ==, 1); - g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 2), ==, 2); - g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 3), ==, 3); + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 1, 0), ==, 0); + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 1, 1), ==, 1); + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 1, 2), ==, 2); + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 1, 3), ==, 3); /* Test field width calculation for multiple values */ - g_assert_cmpuint(apicid_smt_width(1, 2), ==, 1); - g_assert_cmpuint(apicid_smt_width(1, 3), ==, 2); - g_assert_cmpuint(apicid_smt_width(1, 4), ==, 2); + g_assert_cmpuint(apicid_smt_width(1, 1, 2), ==, 1); + g_assert_cmpuint(apicid_smt_width(1, 1, 3), ==, 2); + g_assert_cmpuint(apicid_smt_width(1, 1, 4), ==, 2); - g_assert_cmpuint(apicid_smt_width(1, 14), ==, 4); - g_assert_cmpuint(apicid_smt_width(1, 15), ==, 4); - g_assert_cmpuint(apicid_smt_width(1, 16), ==, 4); - g_assert_cmpuint(apicid_smt_width(1, 17), ==, 5); + g_assert_cmpuint(apicid_smt_width(1, 1, 14), ==, 4); + g_assert_cmpuint(apicid_smt_width(1, 1, 15), ==, 4); + g_assert_cmpuint(apicid_smt_width(1, 1, 16), ==, 4); + g_assert_cmpuint(apicid_smt_width(1, 1, 17), ==, 5); - g_assert_cmpuint(apicid_core_width(30, 2), ==, 5); - g_assert_cmpuint(apicid_core_width(31, 2), ==, 5); - g_assert_cmpuint(apicid_core_width(32, 2), ==, 5); - g_assert_cmpuint(apicid_core_width(33, 2), ==, 6); + g_assert_cmpuint(apicid_core_width(1, 30, 2), ==, 5); + g_assert_cmpuint(apicid_core_width(1, 31, 2), ==, 5); + g_assert_cmpuint(apicid_core_width(1, 32, 2), ==, 5); + g_assert_cmpuint(apicid_core_width(1, 33, 2), ==, 6); + g_assert_cmpuint(apicid_die_width(1, 30, 2), ==, 0); + g_assert_cmpuint(apicid_die_width(2, 30, 2), ==, 1); + g_assert_cmpuint(apicid_die_width(3, 30, 2), ==, 2); + g_assert_cmpuint(apicid_die_width(4, 30, 2), ==, 2); /* build a weird topology and see if IDs are calculated correctly */ /* This will use 2 bits for thread ID and 3 bits for core ID */ - g_assert_cmpuint(apicid_smt_width(6, 3), ==, 2); - g_assert_cmpuint(apicid_core_width(6, 3), ==, 3); - g_assert_cmpuint(apicid_pkg_offset(6, 3), ==, 5); + g_assert_cmpuint(apicid_smt_width(1, 6, 3), ==, 2); + g_assert_cmpuint(apicid_core_offset(1, 6, 3), ==, 2); + g_assert_cmpuint(apicid_die_offset(1, 6, 3), ==, 5); + g_assert_cmpuint(apicid_pkg_offset(1, 6, 3), ==, 5); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 0), ==, 0); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1), ==, 1); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 2), ==, 2); + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 0), ==, 0); + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 1), ==, 1); + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 2), ==, 2); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1 * 3 + 0), ==, + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 1 * 3 + 0), ==, (1 << 2) | 0); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1 * 3 + 1), ==, + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 1 * 3 + 1), ==, (1 << 2) | 1); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1 * 3 + 2), ==, + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 1 * 3 + 2), ==, (1 << 2) | 2); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 2 * 3 + 0), ==, + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 2 * 3 + 0), ==, (2 << 2) | 0); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 2 * 3 + 1), ==, + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 2 * 3 + 1), ==, (2 << 2) | 1); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 2 * 3 + 2), ==, + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 2 * 3 + 2), ==, (2 << 2) | 2); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 5 * 3 + 0), ==, + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 5 * 3 + 0), ==, (5 << 2) | 0); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 5 * 3 + 1), ==, + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 5 * 3 + 1), ==, (5 << 2) | 1); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 5 * 3 + 2), ==, + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 5 * 3 + 2), ==, (5 << 2) | 2); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1 * 6 * 3 + 0 * 3 + 0), ==, - (1 << 5)); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1 * 6 * 3 + 1 * 3 + 1), ==, - (1 << 5) | (1 << 2) | 1); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 3 * 6 * 3 + 5 * 3 + 2), ==, - (3 << 5) | (5 << 2) | 2); + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, + 1 * 6 * 3 + 0 * 3 + 0), ==, (1 << 5)); + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, + 1 * 6 * 3 + 1 * 3 + 1), ==, (1 << 5) | (1 << 2) | 1); + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, + 3 * 6 * 3 + 5 * 3 + 2), ==, (3 << 5) | (5 << 2) | 2); } int main(int argc, char **argv) |