Marcelo Tosatti wrote:
Disable usage of 2M pages if VMX_EPT_2MB_PAGE_BIT (bit 16) is clear
in MSR_IA32_VMX_EPT_VPID_CAP and EPT is enabled.
Index: kvm/virt/kvm/kvm_main.c
===================================================================
--- kvm.orig/virt/kvm/kvm_main.c
+++ kvm/virt/kvm/kvm_main.c
@@ -85,6 +85,8 @@ static long kvm_vcpu_ioctl(struct file *
static bool kvm_rebooting;
+static bool largepages_disabled = false;
+
#ifdef KVM_CAP_DEVICE_ASSIGNMENT
static struct kvm_assigned_dev_kernel *kvm_find_assigned_dev(struct list_head *head,
int assigned_dev_id)
@@ -1184,6 +1186,10 @@ int __kvm_set_memory_region(struct kvm *
if ((base_gfn ^ ugfn) & (KVM_PAGES_PER_HPAGE - 1))
for (i = 0; i < largepages; ++i)
new.lpage_info[i].write_count = 1;
+
+ if (largepages_disabled)
+ for (i = 0; i < largepages; ++i)
+ new.lpage_info[i].write_count = 1;
}
Please reuse the loop above, it's exactly the same (think of 1GB pages).
--
error compiling committee.c: too many arguments to function
--
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