Sean Christopherson 52a9fcbc73 KVM: VMX: Optimize VMX instruction error and fault handling ... Rework the VMX instruction helpers using asm-goto to branch directly to error/fault "handlers" in lieu of using __ex(), i.e. the generic ____kvm_handle_fault_on_reboot(). Branching directly to fault handling code during fixup avoids the extra JMP that is inserted after every VMX instruction when using the generic "fault on reboot" (see commit 3901336ed9, "x86/kvm: Don't call kvm_spurious_fault() from .fixup"). Opportunistically clean up the helpers so that they all have consistent error handling and messages. Leave the usage of ____kvm_handle_fault_on_reboot() (via __ex()) in kvm_cpu_vmxoff() and nested_vmx_check_vmentry_hw() as is. The VMXOFF case is not a fast path, i.e. the cleanliness of __ex() is worth the JMP, and the extra JMP in nested_vmx_check_vmentry_hw() is unavoidable. Note, VMREAD cannot get the asm-goto treatment as output operands aren't compatible with GCC's asm-goto due to internal compiler restrictions. Acked-by: Paolo Bonzini <pbonzini@redhat.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2019-09-25 15:30:02 +02:00
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capabilities.h	KVM: x86: Add support for user wait instructions	2019-09-24 14:34:20 +02:00
evmcs.c	x86/kvm/nVMX: fix VMCLEAR when Enlightened VMCS is in use	2019-07-02 18:56:00 +02:00
evmcs.h	KVM/Hyper-V/VMX: Add direct tlb flush support	2019-09-24 13:37:14 +02:00
nested.c	kvm: nvmx: limit atomic switch MSRs	2019-09-24 16:32:15 +02:00
nested.h	KVM: nVMX: Use descriptive names for VMCS sync functions and flags	2019-06-18 11:46:06 +02:00
ops.h	KVM: VMX: Optimize VMX instruction error and fault handling	2019-09-25 15:30:02 +02:00
pmu_intel.c	KVM: x86/vPMU: reset pmc->counter to 0 for pmu fixed_counters	2019-07-17 12:23:20 +02:00
vmcs12.c
vmcs12.h	KVM/arm updates for 5.3	2019-07-11 15:14:16 +02:00
vmcs_shadow_fields.h	KVM: nVMX: shadow pin based execution controls	2019-06-18 17:10:50 +02:00
vmcs.h	KVM: VMX: Leave preemption timer running when it's disabled	2019-06-18 17:10:46 +02:00
vmenter.S	KVM: VMX: Fix and tweak the comments for VM-Enter	2019-08-22 10:09:27 +02:00
vmx.c	KVM: VMX: Optimize VMX instruction error and fault handling	2019-09-25 15:30:02 +02:00
vmx.h	KVM: vmx: Emulate MSR IA32_UMWAIT_CONTROL	2019-09-24 14:34:36 +02:00