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vlapic: unmap vlapic base only for SOS

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as SOS mapped all memory at the beginning, so trap vlapic need unmap its
memory; for UOS, there is no need as UOS never mapped it.

Tracked-On: #1124
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
This commit is contained in:
Jason Chen CJ 2018-09-08 03:33:09 +08:00 committed by lijinxia
parent 457ac7408d
commit 8773dfb1f6
1 changed files with 4 additions and 2 deletions
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2
hypervisor/arch/x86/guest/vlapic.c
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@ -1970,6 +1970,8 @@ int vlapic_create(struct vcpu *vcpu)
if (is_vcpu_bsp(vcpu)) {
uint64_t *pml4_page =
(uint64_t *)vcpu->vm->arch_vm.nworld_eptp;
/* only need unmap it from SOS as UOS never mapped it */
if (is_vm0(vcpu->vm))
ept_mr_del(vcpu->vm, pml4_page,
DEFAULT_APIC_BASE, CPU_PAGE_SIZE);