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hv: add more exception injection API

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TO inject the
  - Invalid Opcode exception
  - Stack Fault exception
  - Alignment Check exception
to guest.

Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
This commit is contained in:
Yin Fengwei 2018-08-07 17:30:21 +08:00 committed by lijinxia
parent 96e99e3a72
commit 1a00d6c943
2 changed files with 28 additions and 0 deletions
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25
hypervisor/arch/x86/virq.c
View File

@ -282,22 +282,26 @@ static int vcpu_inject_lo_exception(struct vcpu *vcpu)
return 0;
}
/* Inject external interrupt to guest */
void vcpu_inject_extint(struct vcpu *vcpu)
{
vcpu_make_request(vcpu, ACRN_REQUEST_EXTINT);
}
/* Inject NMI to guest */
void vcpu_inject_nmi(struct vcpu *vcpu)
{
vcpu_make_request(vcpu, ACRN_REQUEST_NMI);
}
/* Inject general protection exception(#GP) to guest */
void vcpu_inject_gp(struct vcpu *vcpu, uint32_t err_code)
{
vcpu_queue_exception(vcpu, IDT_GP, err_code);
vcpu_make_request(vcpu, ACRN_REQUEST_EXCP);
}
/* Inject page fault exception(#PF) to guest */
void vcpu_inject_pf(struct vcpu *vcpu, uint64_t addr, uint32_t err_code)
{
vcpu_set_cr2(vcpu, addr);
@ -305,6 +309,27 @@ void vcpu_inject_pf(struct vcpu *vcpu, uint64_t addr, uint32_t err_code)
vcpu_make_request(vcpu, ACRN_REQUEST_EXCP);
}
/* Inject invalid opcode exception(#UD) to guest */
void vcpu_inject_ud(struct vcpu *vcpu)
{
vcpu_queue_exception(vcpu, IDT_UD, 0);
vcpu_make_request(vcpu, ACRN_REQUEST_EXCP);
}
/* Inject alignment check exception(#AC) to guest */
void vcpu_inject_ac(struct vcpu *vcpu)
{
vcpu_queue_exception(vcpu, IDT_AC, 0);
vcpu_make_request(vcpu, ACRN_REQUEST_EXCP);
}
/* Inject stack fault exception(#SS) to guest */
void vcpu_inject_ss(struct vcpu *vcpu)
{
vcpu_queue_exception(vcpu, IDT_SS, 0);
vcpu_make_request(vcpu, ACRN_REQUEST_EXCP);
}
int interrupt_window_vmexit_handler(struct vcpu *vcpu)
{
uint32_t value32;

3
hypervisor/include/arch/x86/irq.h
View File

@ -84,6 +84,9 @@ void vcpu_inject_extint(struct vcpu *vcpu);
void vcpu_inject_nmi(struct vcpu *vcpu);
void vcpu_inject_gp(struct vcpu *vcpu, uint32_t err_code);
void vcpu_inject_pf(struct vcpu *vcpu, uint64_t addr, uint32_t err_code);
void vcpu_inject_ud(struct vcpu *vcpu);
void vcpu_inject_ac(struct vcpu *vcpu);
void vcpu_inject_ss(struct vcpu *vcpu);
void vcpu_make_request(struct vcpu *vcpu, uint16_t eventid);
int vcpu_queue_exception(struct vcpu *vcpu, uint32_t vector, uint32_t err_code);