From: Daniel Henrique Barboza <danielhb413@gmail.com> To: qemu-devel@nongnu.org Cc: aneesh.kumar@linux.ibm.com, Daniel Henrique Barboza <danielhb413@gmail.com>, qemu-ppc@nongnu.org, groug@kaod.org, david@gibson.dropbear.id.au Subject: [RFC PATCH v2 7/7] spapr: move memory/cpu less check to spapr_numa_FORM1_affinity_init() Date: Tue, 15 Jun 2021 22:19:44 -0300 [thread overview] Message-ID: <20210616011944.2996399-8-danielhb413@gmail.com> (raw) In-Reply-To: <20210616011944.2996399-1-danielhb413@gmail.com> FORM2 NUMA affinity is prepared to deal with memory/cpu less NUMA nodes. This is used by the DAX KMEM driver to locate a PAPR SCM device that has a different latency than the original NUMA node from the regular memory. Move this verification to FORM1 affinity code. Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> --- hw/ppc/spapr.c | 33 --------------------------------- hw/ppc/spapr_numa.c | 33 +++++++++++++++++++++++++++++++++ 2 files changed, 33 insertions(+), 33 deletions(-) diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index b6b822a065..2216693e21 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -2776,39 +2776,6 @@ static void spapr_machine_init(MachineState *machine) /* init CPUs */ spapr_init_cpus(spapr); - /* - * check we don't have a memory-less/cpu-less NUMA node - * Firmware relies on the existing memory/cpu topology to provide the - * NUMA topology to the kernel. - * And the linux kernel needs to know the NUMA topology at start - * to be able to hotplug CPUs later. - */ - if (machine->numa_state->num_nodes) { - for (i = 0; i < machine->numa_state->num_nodes; ++i) { - /* check for memory-less node */ - if (machine->numa_state->nodes[i].node_mem == 0) { - CPUState *cs; - int found = 0; - /* check for cpu-less node */ - CPU_FOREACH(cs) { - PowerPCCPU *cpu = POWERPC_CPU(cs); - if (cpu->node_id == i) { - found = 1; - break; - } - } - /* memory-less and cpu-less node */ - if (!found) { - error_report( - "Memory-less/cpu-less nodes are not supported (node %d)", - i); - exit(1); - } - } - } - - } - spapr->gpu_numa_id = spapr_numa_initial_nvgpu_numa_id(machine); if ((!kvm_enabled() || kvmppc_has_cap_mmu_radix()) && diff --git a/hw/ppc/spapr_numa.c b/hw/ppc/spapr_numa.c index e7d455d304..6a2eafcae1 100644 --- a/hw/ppc/spapr_numa.c +++ b/hw/ppc/spapr_numa.c @@ -162,6 +162,39 @@ static void spapr_numa_FORM1_affinity_init(SpaprMachineState *spapr, MachineState *machine) { bool using_legacy_numa = spapr_machine_using_legacy_numa(spapr); + int i; + + /* + * check we don't have a memory-less/cpu-less NUMA node + * Firmware relies on the existing memory/cpu topology to provide the + * NUMA topology to the kernel. + * And the linux kernel needs to know the NUMA topology at start + * to be able to hotplug CPUs later. + */ + if (machine->numa_state->num_nodes) { + for (i = 0; i < machine->numa_state->num_nodes; ++i) { + /* check for memory-less node */ + if (machine->numa_state->nodes[i].node_mem == 0) { + CPUState *cs; + int found = 0; + /* check for cpu-less node */ + CPU_FOREACH(cs) { + PowerPCCPU *cpu = POWERPC_CPU(cs); + if (cpu->node_id == i) { + found = 1; + break; + } + } + /* memory-less and cpu-less node */ + if (!found) { + error_report( + "Memory-less/cpu-less nodes are not supported (node %d)", + i); + exit(1); + } + } + } + } /* * Legacy NUMA guests (pseries-5.1 and older, or guests with only -- 2.31.1
next prev parent reply other threads:[~2021-06-16 1:35 UTC|newest] Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-06-16 1:19 [RFC PATCH v2 0/7] pSeries base FORM2 NUMA affinity support Daniel Henrique Barboza 2021-06-16 1:19 ` [RFC PATCH v2 1/7] spapr_numa.c: split FORM1 code into helpers Daniel Henrique Barboza 2021-06-16 1:19 ` [RFC PATCH v2 2/7] spapr: move NUMA data init to post-CAS Daniel Henrique Barboza 2021-06-16 1:19 ` [RFC PATCH v2 3/7] spapr_numa.c: base FORM2 NUMA affinity support Daniel Henrique Barboza 2021-06-16 1:19 ` [RFC PATCH v2 4/7] spapr: simplify spapr_numa_associativity_init params Daniel Henrique Barboza 2021-06-16 1:19 ` [RFC PATCH v2 5/7] nvdimm: add PPC64 'device-node' property Daniel Henrique Barboza 2021-06-16 1:19 ` [RFC PATCH v2 6/7] spapr_numa, spapr_nvdimm: write secondary NUMA domain for nvdimms Daniel Henrique Barboza 2021-06-16 1:19 ` Daniel Henrique Barboza [this message] 2021-06-24 5:47 ` [RFC PATCH v2 0/7] pSeries base FORM2 NUMA affinity support David Gibson
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20210616011944.2996399-8-danielhb413@gmail.com \ --to=danielhb413@gmail.com \ --cc=aneesh.kumar@linux.ibm.com \ --cc=david@gibson.dropbear.id.au \ --cc=groug@kaod.org \ --cc=qemu-devel@nongnu.org \ --cc=qemu-ppc@nongnu.org \ --subject='Re: [RFC PATCH v2 7/7] spapr: move memory/cpu less check to spapr_numa_FORM1_affinity_init()' \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: link
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for NNTP newsgroup(s).