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hv: ept: set snp control when modify

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Current, SNP control bit is only set in ept_mr_add for cacheable memory.
However, memory type for VM0 is added as uncacheable type.
So SNP control is not set for VM0.
Add code to set SNP control bit for cacheable memory when ept modification.

Tracked-On: #1762
Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Reviewed-by: Li, Fei1 <fei1.li@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Binbin Wu 2018-11-08 16:06:04 +08:00 committed by lijinxia
parent 66f133bf45
commit 5a1f24473d
1 changed files with 5 additions and 1 deletions
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6
hypervisor/arch/x86/ept.c
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@ -45,7 +45,7 @@ uint64_t local_gpa2hpa(struct acrn_vm *vm, uint64_t gpa, uint32_t *size)
pr_err("VM %d GPA2HPA: failed for gpa 0x%llx",
vm->vm_id, gpa);
}
/**
/**
* If specified parameter size is not NULL and
* the HPA of parameter gpa is found, pg_size shall
* be returned through parameter size.
@ -212,6 +212,10 @@ void ept_mr_modify(struct acrn_vm *vm, uint64_t *pml4_page,
dev_dbg(ACRN_DBG_EPT, "%s,vm[%d] gpa 0x%llx size 0x%llx\n", __func__, vm->vm_id, gpa, size);
if ((prot_set & EPT_MT_MASK) != EPT_UNCACHED) {
prot_set |= EPT_SNOOP_CTRL;
}
mmu_modify_or_del(pml4_page, gpa, size, prot_set, prot_clr, &vm->arch_vm.ept_mem_ops, MR_MODIFY);
foreach_vcpu(i, vm, vcpu) {