KVM: Add kvm_x86_ops get_tdp_level()
The function get_tdp_level() provided the number of tdp level for EPT and
NPT rather than the NPT specific macro.
Signed-off-by: Sheng Yang <sheng.yang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index bcfaf7e..20fb3c8 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1343,7 +1343,7 @@
spin_lock(&vcpu->kvm->mmu_lock);
kvm_mmu_free_some_pages(vcpu);
r = __direct_map(vcpu, gpa, error_code & PFERR_WRITE_MASK,
- largepage, gfn, pfn, TDP_ROOT_LEVEL);
+ largepage, gfn, pfn, kvm_x86_ops->get_tdp_level());
spin_unlock(&vcpu->kvm->mmu_lock);
return r;
@@ -1450,7 +1450,7 @@
context->page_fault = tdp_page_fault;
context->free = nonpaging_free;
context->prefetch_page = nonpaging_prefetch_page;
- context->shadow_root_level = TDP_ROOT_LEVEL;
+ context->shadow_root_level = kvm_x86_ops->get_tdp_level();
context->root_hpa = INVALID_PAGE;
if (!is_paging(vcpu)) {
diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h
index a4fcb78..1730757 100644
--- a/arch/x86/kvm/mmu.h
+++ b/arch/x86/kvm/mmu.h
@@ -3,12 +3,6 @@
#include <linux/kvm_host.h>
-#ifdef CONFIG_X86_64
-#define TDP_ROOT_LEVEL PT64_ROOT_LEVEL
-#else
-#define TDP_ROOT_LEVEL PT32E_ROOT_LEVEL
-#endif
-
#define PT64_PT_BITS 9
#define PT64_ENT_PER_PAGE (1 << PT64_PT_BITS)
#define PT32_PT_BITS 10
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 89e0be2..ab22615 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1863,6 +1863,15 @@
return false;
}
+static int get_npt_level(void)
+{
+#ifdef CONFIG_X86_64
+ return PT64_ROOT_LEVEL;
+#else
+ return PT32E_ROOT_LEVEL;
+#endif
+}
+
static struct kvm_x86_ops svm_x86_ops = {
.cpu_has_kvm_support = has_svm,
.disabled_by_bios = is_disabled,
@@ -1920,6 +1929,7 @@
.inject_pending_vectors = do_interrupt_requests,
.set_tss_addr = svm_set_tss_addr,
+ .get_tdp_level = get_npt_level,
};
static int __init svm_init(void)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index d93250d..98e4f2b 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2788,6 +2788,11 @@
}
}
+static int get_ept_level(void)
+{
+ return VMX_EPT_DEFAULT_GAW + 1;
+}
+
static struct kvm_x86_ops vmx_x86_ops = {
.cpu_has_kvm_support = cpu_has_kvm_support,
.disabled_by_bios = vmx_disabled_by_bios,
@@ -2844,6 +2849,7 @@
.inject_pending_vectors = do_interrupt_requests,
.set_tss_addr = vmx_set_tss_addr,
+ .get_tdp_level = get_ept_level,
};
static int __init vmx_init(void)
diff --git a/arch/x86/kvm/vmx.h b/arch/x86/kvm/vmx.h
index 5f7fdc9..093b085 100644
--- a/arch/x86/kvm/vmx.h
+++ b/arch/x86/kvm/vmx.h
@@ -351,5 +351,6 @@
#define VMX_EPT_EXTENT_INDIVIDUAL_BIT (1ull << 24)
#define VMX_EPT_EXTENT_CONTEXT_BIT (1ull << 25)
#define VMX_EPT_EXTENT_GLOBAL_BIT (1ull << 26)
+#define VMX_EPT_DEFAULT_GAW 3
#endif
