| // Copyright 2017 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef GARNET_BIN_GUEST_VMM_ARCH_X64_IO_PORT_H_ |
| #define GARNET_BIN_GUEST_VMM_ARCH_X64_IO_PORT_H_ |
| |
| #include <mutex> |
| |
| #include <zircon/compiler.h> |
| #include <zircon/types.h> |
| |
| #include "garnet/bin/guest/vmm/io.h" |
| |
| // clang-format off |
| |
| // PM1 ports. Exposed here for ACPI. |
| static constexpr uint64_t kPm1EventPort = 0x1000; |
| static constexpr uint64_t kPm1ControlPort = 0x2000; |
| |
| // clang-format on |
| |
| class Guest; |
| |
| class PicHandler : public IoHandler { |
| public: |
| zx_status_t Init(Guest* guest, uint16_t base); |
| |
| zx_status_t Read(uint64_t addr, IoValue* value) const override; |
| zx_status_t Write(uint64_t addr, const IoValue& value) override; |
| }; |
| |
| class PitHandler : public IoHandler { |
| public: |
| zx_status_t Init(Guest* guest); |
| |
| zx_status_t Read(uint64_t addr, IoValue* value) const override; |
| zx_status_t Write(uint64_t addr, const IoValue& value) override; |
| }; |
| |
| class Pm1Handler : public IoHandler { |
| public: |
| zx_status_t Init(Guest* guest); |
| |
| zx_status_t Read(uint64_t addr, IoValue* value) const override; |
| zx_status_t Write(uint64_t addr, const IoValue& value) override; |
| |
| private: |
| mutable std::mutex mutex_; |
| uint16_t enable_ __TA_GUARDED(mutex_) = 0; |
| }; |
| |
| class CmosHandler : public IoHandler { |
| public: |
| zx_status_t Init(Guest* guest); |
| |
| zx_status_t Read(uint64_t addr, IoValue* value) const override; |
| zx_status_t Write(uint64_t addr, const IoValue& value) override; |
| |
| private: |
| zx_status_t ReadCmosRegister(uint8_t cmos_index, uint8_t* value) const; |
| zx_status_t WriteCmosRegister(uint8_t cmos_index, uint8_t value); |
| mutable std::mutex mutex_; |
| uint8_t index_ __TA_GUARDED(mutex_) = 0; |
| }; |
| |
| class I8042Handler : public IoHandler { |
| public: |
| zx_status_t Init(Guest* guest); |
| |
| zx_status_t Read(uint64_t addr, IoValue* value) const override; |
| zx_status_t Write(uint64_t addr, const IoValue& value) override; |
| |
| private: |
| mutable std::mutex mutex_; |
| uint8_t command_ __TA_GUARDED(mutex_) = 0; |
| }; |
| |
| class I8237Handler : public IoHandler { |
| public: |
| zx_status_t Init(Guest* guest); |
| |
| zx_status_t Read(uint64_t addr, IoValue* value) const override; |
| zx_status_t Write(uint64_t addr, const IoValue& value) override; |
| }; |
| |
| class ProcessorInterfaceHandler : public IoHandler { |
| public: |
| zx_status_t Init(Guest* guest); |
| |
| zx_status_t Read(uint64_t addr, IoValue* value) const override; |
| zx_status_t Write(uint64_t addr, const IoValue& value) override; |
| |
| private: |
| uint8_t nmi_sc_ = 0; |
| }; |
| |
| class IoPort { |
| public: |
| zx_status_t Init(Guest* guest); |
| |
| private: |
| PicHandler pic1_; |
| PicHandler pic2_; |
| PitHandler pit_; |
| Pm1Handler pm1_; |
| CmosHandler cmos_; |
| I8042Handler i8042_; |
| I8237Handler i8237_; |
| ProcessorInterfaceHandler proc_iface_; |
| }; |
| |
| #endif // GARNET_BIN_GUEST_VMM_ARCH_X64_IO_PORT_H_ |