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[RFC,48/67] KVM: VMX: Define VMCS encodings for shared EPT pointer

Message ID b8aae184955b84315ff2bf18a278be27f05310a7.1605232743.git.isaku.yamahata@intel.com (mailing list archive)
State New, archived
Headers show
Series KVM: X86: TDX support | expand

Commit Message

Isaku Yamahata Nov. 16, 2020, 6:26 p.m. UTC 
From: Sean Christopherson <sean.j.christopherson@intel.com>

Add the VMCS field encoding for the shared EPTP, which will be used by
TDX to have separate EPT walks for private GPAs (existing EPTP) versus
shared GPAs (new shared EPTP).

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
---
 arch/x86/include/asm/vmx.h | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
index 8a3a2e2dc208..7c968f66d926 100644
--- a/arch/x86/include/asm/vmx.h
+++ b/arch/x86/include/asm/vmx.h
@@ -222,6 +222,8 @@  enum vmcs_field {
 	ENCLS_EXITING_BITMAP_HIGH	= 0x0000202F,
 	TSC_MULTIPLIER                  = 0x00002032,
 	TSC_MULTIPLIER_HIGH             = 0x00002033,
+	SHARED_EPT_POINTER		= 0x0000203C,
+	SHARED_EPT_POINTER_HIGH		= 0x0000203D,
 	GUEST_PHYSICAL_ADDRESS          = 0x00002400,
 	GUEST_PHYSICAL_ADDRESS_HIGH     = 0x00002401,
 	VMCS_LINK_POINTER               = 0x00002800,