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KVM: selftests: Adjust number of files rlimit for all "standard" VMs

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Move the max vCPUs test's RLIMIT_NOFILE adjustments to common code, and
use the new helper to adjust the resource limit for non-barebones VMs by
default.  x86's recalc_apic_map_test creates 512 vCPUs, and a future
change will open the binary stats fd for all vCPUs, which will put the
recalc APIC test above some distros' default limit of 1024.

Link: https://lore.kernel.org/r/20250111005049.1247555-8-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
This commit is contained in:
Sean Christopherson
2025-01-10 16:50:47 -08:00
parent ea7179f995
commit 9b56532b8a
3 changed files with 37 additions and 27 deletions
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tools/testing/selftests/kvm/include/kvm_util.h
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@@ -966,6 +966,8 @@ static inline struct kvm_vm *vm_create_shape_with_one_vcpu(struct vm_shape shape
struct kvm_vcpu *vm_recreate_with_one_vcpu(struct kvm_vm *vm);
void kvm_set_files_rlimit(uint32_t nr_vcpus);
void kvm_pin_this_task_to_pcpu(uint32_t pcpu);
void kvm_print_vcpu_pinning_help(void);
void kvm_parse_vcpu_pinning(const char *pcpus_string, uint32_t vcpu_to_pcpu[],