[09/47] KVM: VMX: more MSR_IA32_VMX_EPT_VPID_CAP capability bits

Commit Message

Avi Kivity Aug. 19, 2009, 1:02 p.m. UTC

From: Marcelo Tosatti <[e-mail]>

Required for EPT misconfiguration handler.

Signed-off-by: Marcelo Tosatti <[e-mail]>
Signed-off-by: Avi Kivity <[e-mail]>
---
 arch/x86/include/asm/vmx.h |    7 +++++++
 arch/x86/kvm/vmx.c         |   20 ++++++++++++++++++++
 2 files changed, 27 insertions(+), 0 deletions(-)

Patch

diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
index e7927a6..272514c 100644
--- a/arch/x86/include/asm/vmx.h
+++ b/arch/x86/include/asm/vmx.h
@@ -352,9 +352,16 @@  enum vmcs_field {
 #define VMX_EPT_EXTENT_INDIVIDUAL_ADDR		0
 #define VMX_EPT_EXTENT_CONTEXT			1
 #define VMX_EPT_EXTENT_GLOBAL			2
+
+#define VMX_EPT_EXECUTE_ONLY_BIT		(1ull)
+#define VMX_EPT_PAGE_WALK_4_BIT			(1ull << 6)
+#define VMX_EPTP_UC_BIT				(1ull << 8)
+#define VMX_EPTP_WB_BIT				(1ull << 14)
+#define VMX_EPT_2MB_PAGE_BIT			(1ull << 16)
 #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
 #define VMX_EPT_MAX_GAW				0x4
 #define VMX_EPT_MT_EPTE_SHIFT			3
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 6ee9292..6610181 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -270,6 +270,26 @@  static inline bool cpu_has_vmx_flexpriority(void)
 		cpu_has_vmx_virtualize_apic_accesses();
 }
 
+static inline bool cpu_has_vmx_ept_execute_only(void)
+{
+	return !!(vmx_capability.ept & VMX_EPT_EXECUTE_ONLY_BIT);
+}
+
+static inline bool cpu_has_vmx_eptp_uncacheable(void)
+{
+	return !!(vmx_capability.ept & VMX_EPTP_UC_BIT);
+}
+
+static inline bool cpu_has_vmx_eptp_writeback(void)
+{
+	return !!(vmx_capability.ept & VMX_EPTP_WB_BIT);
+}
+
+static inline bool cpu_has_vmx_ept_2m_page(void)
+{
+	return !!(vmx_capability.ept & VMX_EPT_2MB_PAGE_BIT);
+}
+
 static inline int cpu_has_vmx_invept_individual_addr(void)
 {
 	return !!(vmx_capability.ept & VMX_EPT_EXTENT_INDIVIDUAL_BIT);