From 660a5d517aaab9187f93854425c4c63f4a09195c Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Tue, 5 May 2015 11:50:23 +0200 Subject: KVM: x86: save/load state on SMM switch MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The big ugly one. This patch adds support for switching in and out of system management mode, respectively upon receiving KVM_REQ_SMI and upon executing a RSM instruction. Both 32- and 64-bit formats are supported for the SMM state save area. Reviewed-by: Radim Krčmář Signed-off-by: Paolo Bonzini --- arch/x86/kvm/trace.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'arch/x86/kvm/trace.h') diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h index 7c7bc8bef21f..4eae7c35ddf5 100644 --- a/arch/x86/kvm/trace.h +++ b/arch/x86/kvm/trace.h @@ -952,6 +952,28 @@ TRACE_EVENT(kvm_wait_lapic_expire, __entry->delta < 0 ? "early" : "late") ); +TRACE_EVENT(kvm_enter_smm, + TP_PROTO(unsigned int vcpu_id, u64 smbase, bool entering), + TP_ARGS(vcpu_id, smbase, entering), + + TP_STRUCT__entry( + __field( unsigned int, vcpu_id ) + __field( u64, smbase ) + __field( bool, entering ) + ), + + TP_fast_assign( + __entry->vcpu_id = vcpu_id; + __entry->smbase = smbase; + __entry->entering = entering; + ), + + TP_printk("vcpu %u: %s SMM, smbase 0x%llx", + __entry->vcpu_id, + __entry->entering ? "entering" : "leaving", + __entry->smbase) +); + #endif /* _TRACE_KVM_H */ #undef TRACE_INCLUDE_PATH -- cgit v1.2.3