mirror of
https://github.com/projectacrn/acrn-hypervisor.git
synced 2025-05-03 14:06:54 +00:00
69627ad7b6
renamed: arch/x86/guest/io_emul.c -> arch/x86/guest/vmx_io.c renamed: include/arch/x86/guest/io_emul.h -> include/arch/x86/guest/vmx_io.h Tracked-On: #1842 Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com> Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
87 lines
2.7 KiB
C
87 lines
2.7 KiB
C
/*
|
|
* Copyright (C) 2019 Intel Corporation. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#ifndef IO_EMUL_H
|
|
#define IO_EMUL_H
|
|
|
|
#include <types.h>
|
|
|
|
/* Define emulated port IO index */
|
|
#define PIC_MASTER_PIO_IDX 0U
|
|
#define PIC_SLAVE_PIO_IDX (PIC_MASTER_PIO_IDX + 1U)
|
|
#define PIC_ELC_PIO_IDX (PIC_SLAVE_PIO_IDX + 1U)
|
|
#define PCI_CFGADDR_PIO_IDX (PIC_ELC_PIO_IDX + 1U)
|
|
#define PCI_CFGDATA_PIO_IDX (PCI_CFGADDR_PIO_IDX + 1U)
|
|
#define UART_PIO_IDX (PCI_CFGDATA_PIO_IDX + 1U)
|
|
#define PM1A_EVT_PIO_IDX (UART_PIO_IDX + 1U)
|
|
#define PM1A_CNT_PIO_IDX (PM1A_EVT_PIO_IDX + 1U)
|
|
#define PM1B_EVT_PIO_IDX (PM1A_CNT_PIO_IDX + 1U)
|
|
#define PM1B_CNT_PIO_IDX (PM1B_EVT_PIO_IDX + 1U)
|
|
#define RTC_PIO_IDX (PM1B_CNT_PIO_IDX + 1U)
|
|
#define VIRTUAL_PM1A_CNT_PIO_IDX (RTC_PIO_IDX + 1U)
|
|
#define EMUL_PIO_IDX_MAX (VIRTUAL_PM1A_CNT_PIO_IDX + 1U)
|
|
|
|
/**
|
|
* @brief The handler of VM exits on I/O instructions
|
|
*
|
|
* @param vcpu The virtual CPU which triggers the VM exit on I/O instruction
|
|
*/
|
|
int32_t pio_instr_vmexit_handler(struct acrn_vcpu *vcpu);
|
|
|
|
/**
|
|
* @brief EPT violation handling
|
|
*
|
|
* @param[in] vcpu the pointer that points to vcpu data structure
|
|
*
|
|
* @retval -EINVAL fail to handle the EPT violation
|
|
* @retval 0 Success to handle the EPT violation
|
|
*/
|
|
int32_t ept_violation_vmexit_handler(struct acrn_vcpu *vcpu);
|
|
|
|
/**
|
|
* @brief General complete-work for port I/O emulation
|
|
*
|
|
* @pre io_req->type == REQ_PORTIO
|
|
*
|
|
* @remark This function must be called when \p io_req is completed, after
|
|
* either a previous call to emulate_io() returning 0 or the corresponding VHM
|
|
* request having transferred to the COMPLETE state.
|
|
*/
|
|
void emulate_pio_complete(struct acrn_vcpu *vcpu, const struct io_request *io_req);
|
|
|
|
/**
|
|
* @brief Allow a VM to access a port I/O range
|
|
*
|
|
* This API enables direct access from the given \p vm to the port I/O space
|
|
* starting from \p port_address to \p port_address + \p nbytes - 1.
|
|
*
|
|
* @param vm The VM whose port I/O access permissions is to be changed
|
|
* @param port_address The start address of the port I/O range
|
|
* @param nbytes The size of the range, in bytes
|
|
*/
|
|
void allow_guest_pio_access(struct acrn_vm *vm, uint16_t port_address, uint32_t nbytes);
|
|
|
|
/**
|
|
* @brief Allow a VM to access a port I/O range
|
|
*
|
|
* This API enables direct access from the given \p vm to the port I/O space
|
|
* starting from \p port_address to \p port_address + \p nbytes - 1.
|
|
*
|
|
* @param vm The VM whose port I/O access permissions is to be changed
|
|
* @param port_address The start address of the port I/O range
|
|
* @param nbytes The size of the range, in bytes
|
|
*/
|
|
void deny_guest_pio_access(struct acrn_vm *vm, uint16_t port_address, uint32_t nbytes);
|
|
|
|
/**
|
|
* @brief Fire VHM interrupt to SOS
|
|
*
|
|
* @return None
|
|
*/
|
|
void arch_fire_vhm_interrupt(void);
|
|
|
|
#endif /* IO_EMUL_H */
|