diff options
| author | Avi Kivity <avi@redhat.com> | 2011-04-20 13:37:53 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-05-11 07:57:11 -0400 |
| commit | ca1d4a9e772bde0a0b8cda61ee9fdca29f80f361 (patch) | |
| tree | ac64707383caef498f295a3c8fb306af70288c2a | |
| parent | 0f65dd70a442ff498da10cec0a599fbd9d2d6f9e (diff) | |
KVM: x86 emulator: drop vcpu argument from pio callbacks
Making the emulator caller agnostic.
Signed-off-by: Avi Kivity <avi@redhat.com>
| -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 b4d846708a4b..1348bdf14a43 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 ff64b17df772..8af08a16f4dd 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 274652ae6d52..e9040a9b25c6 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; |