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| author | Krish Sadhukhan <krish.sadhukhan@oracle.com> | 2021-06-09 14:03:39 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-06-17 13:09:36 -0400 |
| commit | d5a0483f9f3250fe359224327ca1b4a29d106981 (patch) | |
| tree | 1fabf029f35b1afc78120846f62a598af2aed172 /arch/x86/kvm/debugfs.c | |
| parent | b93af02c6722fde384ed2e921b71b61b9addb740 (diff) | |
| download | lwn-d5a0483f9f3250fe359224327ca1b4a29d106981.tar.gz lwn-d5a0483f9f3250fe359224327ca1b4a29d106981.zip | |
KVM: nVMX: nSVM: Add a new VCPU statistic to show if VCPU is in guest mode
Add the following per-VCPU statistic to KVM debugfs to show if a given
VCPU is in guest mode:
guest_mode
Also add this as a per-VM statistic to KVM debugfs to show the total number
of VCPUs that are in guest mode in a given VM.
Signed-off-by: Krish Sadhukhan <Krish.Sadhukhan@oracle.com>
Message-Id: <20210609180340.104248-3-krish.sadhukhan@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/debugfs.c')
| -rw-r--r-- | arch/x86/kvm/debugfs.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/kvm/debugfs.c b/arch/x86/kvm/debugfs.c index 7e818d64bb4d..95a98413dc32 100644 --- a/arch/x86/kvm/debugfs.c +++ b/arch/x86/kvm/debugfs.c @@ -17,6 +17,15 @@ static int vcpu_get_timer_advance_ns(void *data, u64 *val) DEFINE_SIMPLE_ATTRIBUTE(vcpu_timer_advance_ns_fops, vcpu_get_timer_advance_ns, NULL, "%llu\n"); +static int vcpu_get_guest_mode(void *data, u64 *val) +{ + struct kvm_vcpu *vcpu = (struct kvm_vcpu *) data; + *val = vcpu->stat.guest_mode; + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(vcpu_guest_mode_fops, vcpu_get_guest_mode, NULL, "%lld\n"); + static int vcpu_get_tsc_offset(void *data, u64 *val) { struct kvm_vcpu *vcpu = (struct kvm_vcpu *) data; @@ -45,6 +54,8 @@ DEFINE_SIMPLE_ATTRIBUTE(vcpu_tsc_scaling_frac_fops, vcpu_get_tsc_scaling_frac_bi void kvm_arch_create_vcpu_debugfs(struct kvm_vcpu *vcpu, struct dentry *debugfs_dentry) { + debugfs_create_file("guest_mode", 0444, debugfs_dentry, vcpu, + &vcpu_guest_mode_fops); debugfs_create_file("tsc-offset", 0444, debugfs_dentry, vcpu, &vcpu_tsc_offset_fops); |