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acrn-hypervisor
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hv: add obvious comment for empty else clause following else if 

Add obvious do nothing comment for empty else clause following else if.

Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
This commit is contained in:
Li, Fei1 2018-12-06 23:24:14 +08:00 committed by wenlingz
parent d36b44f23d
commit 9e0562f4dc
1 changed files with 4 additions and 2 deletions
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6
hypervisor/arch/x86/vmx.c
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@ -395,6 +395,7 @@ void vmx_write_cr0(struct acrn_vcpu *vcpu, uint64_t cr0)
/* enabled PAE from paging disabled */
load_pdptrs(vcpu);
} else {
/* do nothing */
}
} else if (old_paging_enabled && ((cr0 & CR0_PG) == 0UL)) {
if ((vcpu_get_efer(vcpu) & MSR_IA32_EFER_LME_BIT) != 0UL) {
@ -406,8 +407,9 @@ void vmx_write_cr0(struct acrn_vcpu *vcpu, uint64_t cr0)
vcpu_set_efer(vcpu,
vcpu_get_efer(vcpu) & ~MSR_IA32_EFER_LMA_BIT);
} else {
}
} else {
/* do nothing */
}
/* If CR0.CD or CR0.NW get cr0_changed_bits */
@ -422,7 +424,7 @@ void vmx_write_cr0(struct acrn_vcpu *vcpu, uint64_t cr0)
* disabled behavior
*/
exec_vmwrite64(VMX_GUEST_IA32_PAT_FULL, PAT_ALL_UC_VALUE);
if(!iommu_snoop_supported(vcpu->vm)) {
if (!iommu_snoop_supported(vcpu->vm)) {
cache_flush_invalidate_all();
}
} else {