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| author |   Luwei Kang <luwei.kang@intel.com> | 2019-02-18 19:26:07 -0500 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2019-04-30 21:32:13 +0200 |
| commit | 8479e04e7d6b1974629a0f657afa8ec5f17d2e90 (patch) | |
| tree | caee8e2fdcb18200174dcc7a548055e6c058fba9 /arch/x86/events | |
| parent | Revert "KVM: doc: Document the life cycle of a VM and its resources" (diff) | |
| download | linux-dev-8479e04e7d6b1974629a0f657afa8ec5f17d2e90.tar.xz linux-dev-8479e04e7d6b1974629a0f657afa8ec5f17d2e90.zip | |
KVM: x86: Inject PMI for KVM guest
Inject a PMI for KVM guest when Intel PT working
in Host-Guest mode and Guest ToPA entry memory buffer
was completely filled.
Signed-off-by: Luwei Kang <luwei.kang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/events')
| -rw-r--r-- | arch/x86/events/intel/core.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c index 8baa441d8000..386151b2c62f 100644 --- a/arch/x86/events/intel/core.c +++ b/arch/x86/events/intel/core.c @@ -2307,7 +2307,11 @@ static int handle_pmi_common(struct pt_regs *regs, u64 status) */ if (__test_and_clear_bit(55, (unsigned long *)&status)) { handled++; - intel_pt_interrupt(); + if (unlikely(perf_guest_cbs && perf_guest_cbs->is_in_guest() && + perf_guest_cbs->handle_intel_pt_intr)) + perf_guest_cbs->handle_intel_pt_intr(); + else + intel_pt_interrupt(); } /* |