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hv: refine the function pointer type of port I/O request handlers

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In the definition of port i/o handler, struct acrn_vm * pointer
 is redundant as input, as context of acrn_vm is aleady linked
 in struct acrn_vcpu * by vcpu->vm, 'vm' is not required as input.

 this patch removes argument '*vm' from 'io_read_fn_t' &
 'io_write_fn_t', use '*vcpu' for them instead.

Tracked-On: #861
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
This commit is contained in:
Yonghua Huang
2019-08-09 11:21:16 +08:00
committed by ACRN System Integration
parent 866935a53f
commit f791574f0e
8 changed files with 126 additions and 56 deletions
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17
hypervisor/dm/vuart.c
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@@ -339,11 +339,15 @@ static void write_reg(struct acrn_vuart *vu, uint16_t reg, uint8_t value_u8)
vuart_unlock(vu, rflags);
}
static bool vuart_write(struct acrn_vm *vm, uint16_t offset_arg,
/**
* @pre vcpu != NULL
* @pre vcpu->vm != NULL
*/
static bool vuart_write(struct acrn_vcpu *vcpu, uint16_t offset_arg,
__unused size_t width, uint32_t value)
{
uint16_t offset = offset_arg;
struct acrn_vuart *vu = find_vuart_by_port(vm, offset);
struct acrn_vuart *vu = find_vuart_by_port(vcpu->vm, offset);
uint8_t value_u8 = (uint8_t)value;
struct acrn_vuart *target_vu = NULL;
uint64_t rflags;
@@ -366,12 +370,15 @@ static bool vuart_write(struct acrn_vm *vm, uint16_t offset_arg,
return true;
}
static bool vuart_read(struct acrn_vm *vm, struct acrn_vcpu *vcpu, uint16_t offset_arg,
__unused size_t width)
/**
* @pre vcpu != NULL
* @pre vcpu->vm != NULL
*/
static bool vuart_read(struct acrn_vcpu *vcpu, uint16_t offset_arg, __unused size_t width)
{
uint16_t offset = offset_arg;
uint8_t iir, reg, intr_reason;
struct acrn_vuart *vu = find_vuart_by_port(vm, offset);
struct acrn_vuart *vu = find_vuart_by_port(vcpu->vm, offset);
struct pio_request *pio_req = &vcpu->req.reqs.pio;
uint64_t rflags;