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hv: uc-lock: Fix do not trap #GP

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If HV enable trigger #GP for uc-lock, and is about to emulate guest uc-lock
instructions, should trap guest #GP. Guest uc-lock instrucction trigger #GP,
cause vmexit for #GP, HV handle this vmexit and emulate uc-lock
instruction.

Tracked-On: #6299
Signed-off-by: Tao Yuhong <yuhong.tao@intel.com>
This commit is contained in:
Tao Yuhong 2021-08-03 09:14:40 -04:00 committed by wenlingz
parent 1e3b2a00b9
commit 171856c46b
1 changed files with 3 additions and 0 deletions
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3
hypervisor/arch/x86/guest/vmcs.c
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@ -406,6 +406,9 @@ static void init_exec_ctrl(struct acrn_vcpu *vcpu)
if (is_ac_enabled()) {
value32 = (value32 | (1U << IDT_AC));
}
if (is_gp_enabled()) {
value32 = (value32 | (1U << IDT_GP));
}
exec_vmwrite32(VMX_EXCEPTION_BITMAP, value32);
/* Set up page fault error code mask - second paragraph * pg 2902