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io_emul: reorg function definition to pass partition mode build

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reorg function definition to pass partition mode build

Tracked-On: #2394
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
This commit is contained in:
Jason Chen CJ 2019-01-23 11:17:42 +08:00 committed by wenlingz
parent 15030f6f2c
commit 3c60512738
1 changed files with 59 additions and 57 deletions
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116
hypervisor/arch/x86/io_emul.c
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@ -8,6 +8,64 @@
#include <instr_emul.h>
/**
* @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.
*/
static void
emulate_pio_complete(struct acrn_vcpu *vcpu, const struct io_request *io_req)
{
const struct pio_request *pio_req = &io_req->reqs.pio;
uint64_t mask = 0xFFFFFFFFUL >> (32UL - 8UL * pio_req->size);
if (pio_req->direction == REQUEST_READ) {
uint64_t value = (uint64_t)pio_req->value;
uint64_t rax = vcpu_get_gpreg(vcpu, CPU_REG_RAX);
rax = ((rax) & ~mask) | (value & mask);
vcpu_set_gpreg(vcpu, CPU_REG_RAX, rax);
}
}
/**
* @brief General complete-work for MMIO emulation
*
* @param vcpu The virtual CPU that triggers the MMIO access
* @param io_req The I/O request holding the details of the MMIO access
*
* @pre io_req->type == REQ_MMIO
*
* @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 transferring to the COMPLETE state.
*/
static void emulate_mmio_complete(const struct acrn_vcpu *vcpu, const struct io_request *io_req)
{
const struct mmio_request *mmio_req = &io_req->reqs.mmio;
if (mmio_req->direction == REQUEST_READ) {
/* Emulate instruction and update vcpu register set */
(void)emulate_instruction(vcpu);
}
}
#ifdef CONFIG_PARTITION_MODE
static void io_instr_dest_handler(struct io_request *io_req)
{
struct pio_request *pio_req = &io_req->reqs.pio;
if (pio_req->direction == REQUEST_READ) {
pio_req->value = 0xFFFFFFFFU;
}
}
#else
static void complete_ioreq(struct acrn_vcpu *vcpu, struct io_request *io_req)
{
union vhm_request_buffer *req_buf = NULL;
@ -36,30 +94,6 @@ static void complete_ioreq(struct acrn_vcpu *vcpu, struct io_request *io_req)
clac();
}
/**
* @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.
*/
static void
emulate_pio_complete(struct acrn_vcpu *vcpu, const struct io_request *io_req)
{
const struct pio_request *pio_req = &io_req->reqs.pio;
uint64_t mask = 0xFFFFFFFFUL >> (32UL - 8UL * pio_req->size);
if (pio_req->direction == REQUEST_READ) {
uint64_t value = (uint64_t)pio_req->value;
uint64_t rax = vcpu_get_gpreg(vcpu, CPU_REG_RAX);
rax = ((rax) & ~mask) | (value & mask);
vcpu_set_gpreg(vcpu, CPU_REG_RAX, rax);
}
}
/**
* @brief Complete-work of VHM requests for port I/O emulation
*
@ -77,28 +111,6 @@ static void dm_emulate_pio_complete(struct acrn_vcpu *vcpu)
emulate_pio_complete(vcpu, io_req);
}
/**
* @brief General complete-work for MMIO emulation
*
* @param vcpu The virtual CPU that triggers the MMIO access
* @param io_req The I/O request holding the details of the MMIO access
*
* @pre io_req->type == REQ_MMIO
*
* @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 transferring to the COMPLETE state.
*/
static void emulate_mmio_complete(const struct acrn_vcpu *vcpu, const struct io_request *io_req)
{
const struct mmio_request *mmio_req = &io_req->reqs.mmio;
if (mmio_req->direction == REQUEST_READ) {
/* Emulate instruction and update vcpu register set */
(void)emulate_instruction(vcpu);
}
}
/**
* @brief Complete-work of VHM requests for MMIO emulation
*
@ -118,17 +130,6 @@ static void dm_emulate_mmio_complete(struct acrn_vcpu *vcpu)
emulate_mmio_complete(vcpu, io_req);
}
#ifdef CONFIG_PARTITION_MODE
static void io_instr_dest_handler(struct io_request *io_req)
{
struct pio_request *pio_req = &io_req->reqs.pio;
if (pio_req->direction == REQUEST_READ) {
pio_req->value = 0xFFFFFFFFU;
}
}
#endif
/**
* @brief General complete-work for all kinds of VHM requests for I/O emulation
*
@ -173,6 +174,7 @@ static void dm_emulate_io_complete(struct acrn_vcpu *vcpu)
}
}
}
#endif
/**
* Try handling the given request by any port I/O handler registered in the