[PATCH 02/14] tools headers: Sync KVM headers with the kernel source

Namhyung Kim namhyung at kernel.org
Tue Aug 19 03:32:18 AEST 2025


To pick up the changes in this cset:

  f55ce5a6cd33211c KVM: arm64: Expose new KVM cap for cacheable PFNMAP
  28224ef02b56fcee KVM: TDX: Report supported optional TDVMCALLs in TDX capabilities
  4580dbef5ce0f95a KVM: TDX: Exit to userspace for SetupEventNotifyInterrupt
  25e8b1dd4883e6c2 KVM: TDX: Exit to userspace for GetTdVmCallInfo
  cf207eac06f661fb KVM: TDX: Handle TDG.VP.VMCALL<GetQuote>

This addresses these perf build warnings:

  Warning: Kernel ABI header differences:
    diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
    diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h

Please see tools/include/uapi/README for further details.

Cc: Paolo Bonzini <pbonzini at redhat.com>
Cc: kvm at vger.kernel.org
Signed-off-by: Namhyung Kim <namhyung at kernel.org>
---
 tools/arch/x86/include/uapi/asm/kvm.h |  8 +++++++-
 tools/include/uapi/linux/kvm.h        | 27 +++++++++++++++++++++++++++
 2 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/tools/arch/x86/include/uapi/asm/kvm.h b/tools/arch/x86/include/uapi/asm/kvm.h
index 6f3499507c5e..0f15d683817d 100644
--- a/tools/arch/x86/include/uapi/asm/kvm.h
+++ b/tools/arch/x86/include/uapi/asm/kvm.h
@@ -965,7 +965,13 @@ struct kvm_tdx_cmd {
 struct kvm_tdx_capabilities {
 	__u64 supported_attrs;
 	__u64 supported_xfam;
-	__u64 reserved[254];
+
+	__u64 kernel_tdvmcallinfo_1_r11;
+	__u64 user_tdvmcallinfo_1_r11;
+	__u64 kernel_tdvmcallinfo_1_r12;
+	__u64 user_tdvmcallinfo_1_r12;
+
+	__u64 reserved[250];
 
 	/* Configurable CPUID bits for userspace */
 	struct kvm_cpuid2 cpuid;
diff --git a/tools/include/uapi/linux/kvm.h b/tools/include/uapi/linux/kvm.h
index 7415a3863891..f0f0d49d2544 100644
--- a/tools/include/uapi/linux/kvm.h
+++ b/tools/include/uapi/linux/kvm.h
@@ -178,6 +178,7 @@ struct kvm_xen_exit {
 #define KVM_EXIT_NOTIFY           37
 #define KVM_EXIT_LOONGARCH_IOCSR  38
 #define KVM_EXIT_MEMORY_FAULT     39
+#define KVM_EXIT_TDX              40
 
 /* For KVM_EXIT_INTERNAL_ERROR */
 /* Emulate instruction failed. */
@@ -447,6 +448,31 @@ struct kvm_run {
 			__u64 gpa;
 			__u64 size;
 		} memory_fault;
+		/* KVM_EXIT_TDX */
+		struct {
+			__u64 flags;
+			__u64 nr;
+			union {
+				struct {
+					__u64 ret;
+					__u64 data[5];
+				} unknown;
+				struct {
+					__u64 ret;
+					__u64 gpa;
+					__u64 size;
+				} get_quote;
+				struct {
+					__u64 ret;
+					__u64 leaf;
+					__u64 r11, r12, r13, r14;
+				} get_tdvmcall_info;
+				struct {
+					__u64 ret;
+					__u64 vector;
+				} setup_event_notify;
+			};
+		} tdx;
 		/* Fix the size of the union. */
 		char padding[256];
 	};
@@ -935,6 +961,7 @@ struct kvm_enable_cap {
 #define KVM_CAP_ARM_EL2 240
 #define KVM_CAP_ARM_EL2_E2H0 241
 #define KVM_CAP_RISCV_MP_STATE_RESET 242
+#define KVM_CAP_ARM_CACHEABLE_PFNMAP_SUPPORTED 243
 
 struct kvm_irq_routing_irqchip {
 	__u32 irqchip;
-- 
2.25.1




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