| Message ID | 20220403145953.10522-1-gshan@redhat.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | hw/arm/virt: Fix CPU's default NUMA node ID | expand |
Hi Igor and Yanan, On 4/3/22 10:59 PM, Gavin Shan wrote: > When the CPU-to-NUMA association isn't provided by user, the default NUMA > node ID for the specific CPU is returned from virt_get_default_cpu_node_id(). > Unfortunately, the default NUMA node ID breaks socket boundary and leads to > the broken CPU topology warning message in Linux guest. This series intends > to fix the issue. > > PATCH[1/4] Add cluster-id to CPU instance property > PATCH[2/4] Uses SMP configuration to populate CPU topology > PATCH[3/4] Fixes the broken CPU topology by considering the socket boundary > when the default NUMA node ID is given > PATCH[4/4] Uses the populated CPU topology to build PPTT table, instead of > calculate it again > Please let me know if you have more comments for this series, thanks in advance. Thanks, Gavin > Changelog > ========= > v4/v5: > * Split PATCH[v3 1/3] to PATCH[v5 1/4] and PATCH[v5 2/4]. > Verify or dump 'clsuter-id' in various spots (Yanan) > * s/within cluster/within cluster\/die/ for 'core-id' in > qapi/machine.json (Igor) > * Apply '% ms->smp.{sockets, clusters, cores, threads} in > virt_possible_cpu_arch_ids() as x86 does (Igor) > * Use [0 - possible_cpus->len] as ACPI processor UID to > build PPTT table and PATCH[v3 4/4] is dropped (Igor) > * Simplified build_pptt() to add all entries in one loop > on ms->possible_cpus (Igor) > v3: > * Split PATCH[v2 1/3] to PATCH[v3 1/4] and PATCH[v3 2/4] (Yanan) > * Don't take account of die ID in CPU topology population > and added assert(!mc->smp_props.dies_supported) (Yanan/Igor) > * Assign cluster_id and use it when building PPTT table (Yanan/Igor) > v2: > * Populate the CPU topology in virt_possible_cpu_arch_ids() > so that it can be reused in virt_get_default_cpu_node_id() (Igor) > * Added PATCH[2/3] to use the existing CPU topology when the > PPTT table is built (Igor) > * Added PATCH[3/3] to take thread ID as ACPI processor ID > in MADT and SRAT table (Gavin) > > Gavin Shan (4): > qapi/machine.json: Add cluster-id > hw/arm/virt: Consider SMP configuration in CPU topology > hw/arm/virt: Fix CPU's default NUMA node ID > hw/acpi/aml-build: Use existing CPU topology to build PPTT table > > hw/acpi/aml-build.c | 100 ++++++++++++++----------------------- > hw/arm/virt.c | 20 +++++++- > hw/core/machine-hmp-cmds.c | 4 ++ > hw/core/machine.c | 16 ++++++ > qapi/machine.json | 6 ++- > 5 files changed, 80 insertions(+), 66 deletions(-) >
When the CPU-to-NUMA association isn't provided by user, the default NUMA node ID for the specific CPU is returned from virt_get_default_cpu_node_id(). Unfortunately, the default NUMA node ID breaks socket boundary and leads to the broken CPU topology warning message in Linux guest. This series intends to fix the issue. PATCH[1/4] Add cluster-id to CPU instance property PATCH[2/4] Uses SMP configuration to populate CPU topology PATCH[3/4] Fixes the broken CPU topology by considering the socket boundary when the default NUMA node ID is given PATCH[4/4] Uses the populated CPU topology to build PPTT table, instead of calculate it again Changelog ========= v4/v5: * Split PATCH[v3 1/3] to PATCH[v5 1/4] and PATCH[v5 2/4]. Verify or dump 'clsuter-id' in various spots (Yanan) * s/within cluster/within cluster\/die/ for 'core-id' in qapi/machine.json (Igor) * Apply '% ms->smp.{sockets, clusters, cores, threads} in virt_possible_cpu_arch_ids() as x86 does (Igor) * Use [0 - possible_cpus->len] as ACPI processor UID to build PPTT table and PATCH[v3 4/4] is dropped (Igor) * Simplified build_pptt() to add all entries in one loop on ms->possible_cpus (Igor) v3: * Split PATCH[v2 1/3] to PATCH[v3 1/4] and PATCH[v3 2/4] (Yanan) * Don't take account of die ID in CPU topology population and added assert(!mc->smp_props.dies_supported) (Yanan/Igor) * Assign cluster_id and use it when building PPTT table (Yanan/Igor) v2: * Populate the CPU topology in virt_possible_cpu_arch_ids() so that it can be reused in virt_get_default_cpu_node_id() (Igor) * Added PATCH[2/3] to use the existing CPU topology when the PPTT table is built (Igor) * Added PATCH[3/3] to take thread ID as ACPI processor ID in MADT and SRAT table (Gavin) Gavin Shan (4): qapi/machine.json: Add cluster-id hw/arm/virt: Consider SMP configuration in CPU topology hw/arm/virt: Fix CPU's default NUMA node ID hw/acpi/aml-build: Use existing CPU topology to build PPTT table hw/acpi/aml-build.c | 100 ++++++++++++++----------------------- hw/arm/virt.c | 20 +++++++- hw/core/machine-hmp-cmds.c | 4 ++ hw/core/machine.c | 16 ++++++ qapi/machine.json | 6 ++- 5 files changed, 80 insertions(+), 66 deletions(-)