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hv: retain rip if the fault is injected to guest

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According to SDM 6.5 exception classification, if the fault
happens, the CPU will return to the faulting instruction. So
we shouldn't change rip to the next instruction if inject fault
to guest.

Tracked-On: #1473
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Yin Fengwei 2018-10-16 09:22:46 +08:00 committed by wenlingz
parent 348e2ba168
commit eb328d78ea
1 changed files with 3 additions and 0 deletions
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3
hypervisor/arch/x86/virq.c
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@ -261,6 +261,9 @@ static void vcpu_inject_exception(struct vcpu *vcpu, uint32_t vector)
(exception_type[vector] << 8U) | (vector & 0xFFU));
vcpu->arch_vcpu.exception_info.exception = VECTOR_INVALID;
/* retain rip for exception injection */
vcpu_retain_rip(vcpu);
}
static int vcpu_inject_hi_exception(struct vcpu *vcpu)