diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/kvm_emulate.h | 10 | ||||
| -rw-r--r-- | arch/x86/kvm/emulate.c | 6 | ||||
| -rw-r--r-- | arch/x86/kvm/x86.c | 18 |
3 files changed, 21 insertions, 13 deletions
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h index b4d8467..1348bdf 100644 --- a/arch/x86/include/asm/kvm_emulate.h +++ b/arch/x86/include/asm/kvm_emulate.h @@ -155,11 +155,13 @@ struct x86_emulate_ops { unsigned int bytes, struct x86_exception *fault); - int (*pio_in_emulated)(int size, unsigned short port, void *val, - unsigned int count, struct kvm_vcpu *vcpu); + int (*pio_in_emulated)(struct x86_emulate_ctxt *ctxt, + int size, unsigned short port, void *val, + unsigned int count); - int (*pio_out_emulated)(int size, unsigned short port, const void *val, - unsigned int count, struct kvm_vcpu *vcpu); + int (*pio_out_emulated)(struct x86_emulate_ctxt *ctxt, + int size, unsigned short port, const void *val, + unsigned int count); bool (*get_cached_descriptor)(struct desc_struct *desc, u32 *base3, int seg, struct kvm_vcpu *vcpu); diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index ff64b17..8af08a1 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -1125,7 +1125,7 @@ static int pio_in_emulated(struct x86_emulate_ctxt *ctxt, if (n == 0) n = 1; rc->pos = rc->end = 0; - if (!ops->pio_in_emulated(size, port, rc->data, n, ctxt->vcpu)) + if (!ops->pio_in_emulated(ctxt, size, port, rc->data, n)) return 0; rc->end = n * size; } @@ -3892,8 +3892,8 @@ special_insn: case 0xef: /* out dx,(e/r)ax */ c->dst.val = c->regs[VCPU_REGS_RDX]; do_io_out: - ops->pio_out_emulated(c->src.bytes, c->dst.val, - &c->src.val, 1, ctxt->vcpu); + ops->pio_out_emulated(ctxt, c->src.bytes, c->dst.val, + &c->src.val, 1); c->dst.type = OP_NONE; /* Disable writeback. */ break; case 0xf4: /* hlt */ diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 274652a..e9040a9 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -4060,9 +4060,12 @@ static int kernel_pio(struct kvm_vcpu *vcpu, void *pd) } -static int emulator_pio_in_emulated(int size, unsigned short port, void *val, - unsigned int count, struct kvm_vcpu *vcpu) +static int emulator_pio_in_emulated(struct x86_emulate_ctxt *ctxt, + int size, unsigned short port, void *val, + unsigned int count) { + struct kvm_vcpu *vcpu = emul_to_vcpu(ctxt); + if (vcpu->arch.pio.count) goto data_avail; @@ -4090,10 +4093,12 @@ static int emulator_pio_in_emulated(int size, unsigned short port, void *val, return 0; } -static int emulator_pio_out_emulated(int size, unsigned short port, - const void *val, unsigned int count, - struct kvm_vcpu *vcpu) +static int emulator_pio_out_emulated(struct x86_emulate_ctxt *ctxt, + int size, unsigned short port, + const void *val, unsigned int count) { + struct kvm_vcpu *vcpu = emul_to_vcpu(ctxt); + trace_kvm_pio(1, port, size, count); vcpu->arch.pio.port = port; @@ -4614,7 +4619,8 @@ EXPORT_SYMBOL_GPL(x86_emulate_instruction); int kvm_fast_pio_out(struct kvm_vcpu *vcpu, int size, unsigned short port) { unsigned long val = kvm_register_read(vcpu, VCPU_REGS_RAX); - int ret = emulator_pio_out_emulated(size, port, &val, 1, vcpu); + int ret = emulator_pio_out_emulated(&vcpu->arch.emulate_ctxt, + size, port, &val, 1); /* do not return to emulator after return from userspace */ vcpu->arch.pio.count = 0; return ret; |