diff options
| author | Andrew Donnellan <ajd@linux.ibm.com> | 2025-11-26 16:33:10 +1100 |
|---|---|---|
| committer | Janosch Frank <frankja@linux.ibm.com> | 2025-11-27 15:39:46 +0100 |
| commit | c067847c52e26eceed9f8a938c04456880c486fa (patch) | |
| tree | 96fa39d6658a4344cd88b89b644ac405facb30f8 | |
| parent | 44acac00be5dbda58f337acda41148d39743075c (diff) | |
KVM: s390: Add signal_exits counter
Add a signal_exits counter for s390, as exists on arm64, loongarch, mips,
powerpc, riscv and x86.
This is used by kvm_handle_signal_exit(), which we will use when we
later enable CONFIG_VIRT_XFER_TO_GUEST_WORK.
Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
| -rw-r--r-- | arch/s390/include/asm/kvm_host.h | 1 | ||||
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 4 |
2 files changed, 4 insertions, 1 deletions
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index 1e4829c70216..ae1223264d3c 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -146,6 +146,7 @@ struct kvm_vcpu_stat { u64 instruction_diagnose_500; u64 instruction_diagnose_other; u64 pfault_sync; + u64 signal_exits; }; #define PGM_OPERATION 0x01 diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 56d4730b7c41..8db37e508a71 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -185,7 +185,8 @@ const struct _kvm_stats_desc kvm_vcpu_stats_desc[] = { STATS_DESC_COUNTER(VCPU, instruction_diagnose_308), STATS_DESC_COUNTER(VCPU, instruction_diagnose_500), STATS_DESC_COUNTER(VCPU, instruction_diagnose_other), - STATS_DESC_COUNTER(VCPU, pfault_sync) + STATS_DESC_COUNTER(VCPU, pfault_sync), + STATS_DESC_COUNTER(VCPU, signal_exits) }; const struct kvm_stats_header kvm_vcpu_stats_header = { @@ -5251,6 +5252,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu) if (signal_pending(current) && !rc) { kvm_run->exit_reason = KVM_EXIT_INTR; + vcpu->stat.signal_exits++; rc = -EINTR; } |