diff options
author | Andre Przywara <andre.przywara@amd.com> | 2010-12-21 10:12:02 (GMT) |
---|---|---|
committer | Avi Kivity <avi@redhat.com> | 2011-01-12 09:31:00 (GMT) |
commit | 51d8b66199e94284e7725a79eae4a38de4b80d54 (patch) | |
tree | 904e8c206d9d1d52eb673c235c08b7a612cce9b0 /arch/x86/kvm | |
parent | db8fcefaa704ccb40b6dcd24e3b75bad3ce7dde3 (diff) | |
download | linux-51d8b66199e94284e7725a79eae4a38de4b80d54.tar.xz |
KVM: cleanup emulate_instruction
emulate_instruction had many callers, but only one used all
parameters. One parameter was unused, another one is now
hidden by a wrapper function (required for a future addition
anyway), so most callers use now a shorter parameter list.
Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
-rw-r--r-- | arch/x86/kvm/mmu.c | 2 | ||||
-rw-r--r-- | arch/x86/kvm/svm.c | 14 | ||||
-rw-r--r-- | arch/x86/kvm/vmx.c | 12 | ||||
-rw-r--r-- | arch/x86/kvm/x86.c | 11 |
4 files changed, 19 insertions, 20 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 475a122..01c5a10 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -3348,7 +3348,7 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u32 error_code) if (r) goto out; - er = emulate_instruction(vcpu, cr2, error_code, 0); + er = x86_emulate_instruction(vcpu, cr2, 0); switch (er) { case EMULATE_DONE: diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 3d4b88a..90d0658 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -475,7 +475,7 @@ static void skip_emulated_instruction(struct kvm_vcpu *vcpu) svm->next_rip = svm->vmcb->control.next_rip; if (!svm->next_rip) { - if (emulate_instruction(vcpu, 0, 0, EMULTYPE_SKIP) != + if (emulate_instruction(vcpu, EMULTYPE_SKIP) != EMULATE_DONE) printk(KERN_DEBUG "%s: NOP\n", __func__); return; @@ -1586,7 +1586,7 @@ static int ud_interception(struct vcpu_svm *svm) { int er; - er = emulate_instruction(&svm->vcpu, 0, 0, EMULTYPE_TRAP_UD); + er = emulate_instruction(&svm->vcpu, EMULTYPE_TRAP_UD); if (er != EMULATE_DONE) kvm_queue_exception(&svm->vcpu, UD_VECTOR); return 1; @@ -1703,7 +1703,7 @@ static int io_interception(struct vcpu_svm *svm) string = (io_info & SVM_IOIO_STR_MASK) != 0; in = (io_info & SVM_IOIO_TYPE_MASK) != 0; if (string || in) - return emulate_instruction(vcpu, 0, 0, 0) == EMULATE_DONE; + return emulate_instruction(vcpu, 0) == EMULATE_DONE; port = io_info >> 16; size = (io_info & SVM_IOIO_SIZE_MASK) >> SVM_IOIO_SIZE_SHIFT; @@ -2648,12 +2648,12 @@ static int iret_interception(struct vcpu_svm *svm) static int invlpg_interception(struct vcpu_svm *svm) { - return emulate_instruction(&svm->vcpu, 0, 0, 0) == EMULATE_DONE; + return emulate_instruction(&svm->vcpu, 0) == EMULATE_DONE; } static int emulate_on_interception(struct vcpu_svm *svm) { - return emulate_instruction(&svm->vcpu, 0, 0, 0) == EMULATE_DONE; + return emulate_instruction(&svm->vcpu, 0) == EMULATE_DONE; } static int cr0_write_interception(struct vcpu_svm *svm) @@ -2661,7 +2661,7 @@ static int cr0_write_interception(struct vcpu_svm *svm) struct kvm_vcpu *vcpu = &svm->vcpu; int r; - r = emulate_instruction(&svm->vcpu, 0, 0, 0); + r = emulate_instruction(&svm->vcpu, 0); if (svm->nested.vmexit_rip) { kvm_register_write(vcpu, VCPU_REGS_RIP, svm->nested.vmexit_rip); @@ -2680,7 +2680,7 @@ static int cr8_write_interception(struct vcpu_svm *svm) u8 cr8_prev = kvm_get_cr8(&svm->vcpu); /* instruction emulation calls kvm_set_cr8() */ - r = emulate_instruction(&svm->vcpu, 0, 0, 0); + r = emulate_instruction(&svm->vcpu, 0); if (irqchip_in_kernel(svm->vcpu.kvm)) { clr_cr_intercept(svm, INTERCEPT_CR8_WRITE); return r == EMULATE_DONE; diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index fd8ffde..f3c60fb 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2939,7 +2939,7 @@ static int handle_rmode_exception(struct kvm_vcpu *vcpu, * Cause the #SS fault with 0 error code in VM86 mode. */ if (((vec == GP_VECTOR) || (vec == SS_VECTOR)) && err_code == 0) - if (emulate_instruction(vcpu, 0, 0, 0) == EMULATE_DONE) + if (emulate_instruction(vcpu, 0) == EMULATE_DONE) return 1; /* * Forward all other exceptions that are valid in real mode. @@ -3036,7 +3036,7 @@ static int handle_exception(struct kvm_vcpu *vcpu) } if (is_invalid_opcode(intr_info)) { - er = emulate_instruction(vcpu, 0, 0, EMULTYPE_TRAP_UD); + er = emulate_instruction(vcpu, EMULTYPE_TRAP_UD); if (er != EMULATE_DONE) kvm_queue_exception(vcpu, UD_VECTOR); return 1; @@ -3127,7 +3127,7 @@ static int handle_io(struct kvm_vcpu *vcpu) ++vcpu->stat.io_exits; if (string || in) - return emulate_instruction(vcpu, 0, 0, 0) == EMULATE_DONE; + return emulate_instruction(vcpu, 0) == EMULATE_DONE; port = exit_qualification >> 16; size = (exit_qualification & 7) + 1; @@ -3372,7 +3372,7 @@ static int handle_vmx_insn(struct kvm_vcpu *vcpu) static int handle_invd(struct kvm_vcpu *vcpu) { - return emulate_instruction(vcpu, 0, 0, 0) == EMULATE_DONE; + return emulate_instruction(vcpu, 0) == EMULATE_DONE; } static int handle_invlpg(struct kvm_vcpu *vcpu) @@ -3403,7 +3403,7 @@ static int handle_xsetbv(struct kvm_vcpu *vcpu) static int handle_apic_access(struct kvm_vcpu *vcpu) { - return emulate_instruction(vcpu, 0, 0, 0) == EMULATE_DONE; + return emulate_instruction(vcpu, 0) == EMULATE_DONE; } static int handle_task_switch(struct kvm_vcpu *vcpu) @@ -3618,7 +3618,7 @@ static int handle_invalid_guest_state(struct kvm_vcpu *vcpu) && (kvm_get_rflags(&vmx->vcpu) & X86_EFLAGS_IF)) return handle_interrupt_window(&vmx->vcpu); - err = emulate_instruction(vcpu, 0, 0, 0); + err = emulate_instruction(vcpu, 0); if (err == EMULATE_DO_MMIO) { ret = 0; diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 1d54cb7..a6fcb76 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -4363,10 +4363,9 @@ static bool reexecute_instruction(struct kvm_vcpu *vcpu, gva_t gva) return false; } -int emulate_instruction(struct kvm_vcpu *vcpu, - unsigned long cr2, - u16 error_code, - int emulation_type) +int x86_emulate_instruction(struct kvm_vcpu *vcpu, + unsigned long cr2, + int emulation_type) { int r; struct decode_cache *c = &vcpu->arch.emulate_ctxt.decode; @@ -4474,7 +4473,7 @@ done: return r; } -EXPORT_SYMBOL_GPL(emulate_instruction); +EXPORT_SYMBOL_GPL(x86_emulate_instruction); int kvm_fast_pio_out(struct kvm_vcpu *vcpu, int size, unsigned short port) { @@ -5398,7 +5397,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) vcpu->mmio_needed = 0; } vcpu->srcu_idx = srcu_read_lock(&vcpu->kvm->srcu); - r = emulate_instruction(vcpu, 0, 0, EMULTYPE_NO_DECODE); + r = emulate_instruction(vcpu, EMULTYPE_NO_DECODE); srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx); if (r != EMULATE_DONE) { r = 0; |