Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm updates from Paolo Bonzini:
 "The first batch of KVM patches, mostly covering x86.

  ARM:

   - Account stage2 page table allocations in memory stats

  x86:

   - Account EPT/NPT arm64 page table allocations in memory stats

   - Tracepoint cleanups/fixes for nested VM-Enter and emulated MSR
     accesses

   - Drop eVMCS controls filtering for KVM on Hyper-V, all known
     versions of Hyper-V now support eVMCS fields associated with
     features that are enumerated to the guest

   - Use KVM's sanitized VMCS config as the basis for the values of
     nested VMX capabilities MSRs

   - A myriad event/exception fixes and cleanups. Most notably, pending
     exceptions morph into VM-Exits earlier, as soon as the exception is
     queued, instead of waiting until the next vmentry. This fixed a
     longstanding issue where the exceptions would incorrecly become
     double-faults instead of triggering a vmexit; the common case of
     page-fault vmexits had a special workaround, but now it's fixed for
     good

   - A handful of fixes for memory leaks in error paths

   - Cleanups for VMREAD trampoline and VMX's VM-Exit assembly flow

   - Never write to memory from non-sleepable kvm_vcpu_check_block()

   - Selftests refinements and cleanups

   - Misc typo cleanups

  Generic:

   - remove KVM_REQ_UNHALT"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (94 commits)
  KVM: remove KVM_REQ_UNHALT
  KVM: mips, x86: do not rely on KVM_REQ_UNHALT
  KVM: x86: never write to memory from kvm_vcpu_check_block()
  KVM: x86: Don't snapshot pending INIT/SIPI prior to checking nested events
  KVM: nVMX: Make event request on VMXOFF iff INIT/SIPI is pending
  KVM: nVMX: Make an event request if INIT or SIPI is pending on VM-Enter
  KVM: SVM: Make an event request if INIT or SIPI is pending when GIF is set
  KVM: x86: lapic does not have to process INIT if it is blocked
  KVM: x86: Rename kvm_apic_has_events() to make it INIT/SIPI specific
  KVM: x86: Rename and expose helper to detect if INIT/SIPI are allowed
  KVM: nVMX: Make an event request when pending an MTF nested VM-Exit
  KVM: x86: make vendor code check for all nested events
  mailmap: Update Oliver's email address
  KVM: x86: Allow force_emulation_prefix to be written without a reload
  KVM: selftests: Add an x86-only test to verify nested exception queueing
  KVM: selftests: Use uapi header to get VMX and SVM exit reasons/codes
  KVM: x86: Rename inject_pending_events() to kvm_check_and_inject_events()
  KVM: VMX: Update MTF and ICEBP comments to document KVM's subtle behavior
  KVM: x86: Treat pending TRIPLE_FAULT requests as pending exceptions
  KVM: x86: Morph pending exceptions to pending VM-Exits at queue time
  ...

1 files changed, 36 insertions, 17 deletions

diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
index 2120d7c060a9..bc25589ad588 100644
--- a/arch/x86/kvm/trace.h
+++ b/arch/x86/kvm/trace.h
@@ -394,20 +394,25 @@ TRACE_EVENT(kvm_inj_exception,
  * Tracepoint for page fault.
  */
 TRACE_EVENT(kvm_page_fault,
-	TP_PROTO(unsigned long fault_address, unsigned int error_code),
-	TP_ARGS(fault_address, error_code),
+	TP_PROTO(struct kvm_vcpu *vcpu, u64 fault_address, u64 error_code),
+	TP_ARGS(vcpu, fault_address, error_code),
 
 	TP_STRUCT__entry(
-		__field(	unsigned long,	fault_address	)
-		__field(	unsigned int,	error_code	)
+		__field(	unsigned int,	vcpu_id		)
+		__field(	unsigned long,	guest_rip	)
+		__field(	u64,		fault_address	)
+		__field(	u64,		error_code	)
 	),
 
 	TP_fast_assign(
+		__entry->vcpu_id	= vcpu->vcpu_id;
+		__entry->guest_rip	= kvm_rip_read(vcpu);
 		__entry->fault_address	= fault_address;
 		__entry->error_code	= error_code;
 	),
 
-	TP_printk("address %lx error_code %x",
+	TP_printk("vcpu %u rip 0x%lx address 0x%016llx error_code 0x%llx",
+		  __entry->vcpu_id, __entry->guest_rip,
 		  __entry->fault_address, __entry->error_code)
 );
 
@@ -589,10 +594,12 @@ TRACE_EVENT(kvm_pv_eoi,
 /*
  * Tracepoint for nested VMRUN
  */
-TRACE_EVENT(kvm_nested_vmrun,
+TRACE_EVENT(kvm_nested_vmenter,
 	    TP_PROTO(__u64 rip, __u64 vmcb, __u64 nested_rip, __u32 int_ctl,
-		     __u32 event_inj, bool npt),
-	    TP_ARGS(rip, vmcb, nested_rip, int_ctl, event_inj, npt),
+		     __u32 event_inj, bool tdp_enabled, __u64 guest_tdp_pgd,
+		     __u64 guest_cr3, __u32 isa),
+	    TP_ARGS(rip, vmcb, nested_rip, int_ctl, event_inj, tdp_enabled,
+		    guest_tdp_pgd, guest_cr3, isa),
 
 	TP_STRUCT__entry(
 		__field(	__u64,		rip		)
@@ -600,7 +607,9 @@ TRACE_EVENT(kvm_nested_vmrun,
 		__field(	__u64,		nested_rip	)
 		__field(	__u32,		int_ctl		)
 		__field(	__u32,		event_inj	)
-		__field(	bool,		npt		)
+		__field(	bool,		tdp_enabled	)
+		__field(	__u64,		guest_pgd	)
+		__field(	__u32,		isa		)
 	),
 
 	TP_fast_assign(
@@ -609,14 +618,24 @@ TRACE_EVENT(kvm_nested_vmrun,
 		__entry->nested_rip	= nested_rip;
 		__entry->int_ctl	= int_ctl;
 		__entry->event_inj	= event_inj;
-		__entry->npt		= npt;
-	),
-
-	TP_printk("rip: 0x%016llx vmcb: 0x%016llx nrip: 0x%016llx int_ctl: 0x%08x "
-		  "event_inj: 0x%08x npt: %s",
-		__entry->rip, __entry->vmcb, __entry->nested_rip,
-		__entry->int_ctl, __entry->event_inj,
-		__entry->npt ? "on" : "off")
+		__entry->tdp_enabled	= tdp_enabled;
+		__entry->guest_pgd	= tdp_enabled ? guest_tdp_pgd : guest_cr3;
+		__entry->isa		= isa;
+	),
+
+	TP_printk("rip: 0x%016llx %s: 0x%016llx nested_rip: 0x%016llx "
+		  "int_ctl: 0x%08x event_inj: 0x%08x nested_%s=%s %s: 0x%016llx",
+		  __entry->rip,
+		  __entry->isa == KVM_ISA_VMX ? "vmcs" : "vmcb",
+		  __entry->vmcb,
+		  __entry->nested_rip,
+		  __entry->int_ctl,
+		  __entry->event_inj,
+		  __entry->isa == KVM_ISA_VMX ? "ept" : "npt",
+		  __entry->tdp_enabled ? "y" : "n",
+		  !__entry->tdp_enabled ? "guest_cr3" :
+		  __entry->isa == KVM_ISA_VMX ? "nested_eptp" : "nested_cr3",
+		  __entry->guest_pgd)
 );
 
 TRACE_EVENT(kvm_nested_intercepts,