[Qemu-devel] [PATCH 4/7] linux-headers: import improved definition of KVM_GET/SET_NESTED_STATE structs

[Paolo Bonzini <pbonzini@redhat.com>]

This patch improves the KVM_GET/SET_NESTED_STATE structs by detailing
the format of VMX nested state in a struct.  The VMX nested state is
accessible through struct kvm_vmx_nested_state though, to avoid
changing the size of the structs, it has to be accessed as "vmx.data[0]"
rather than just "vmx.data".

Also, the values of the "format" field are defined as macros.  This
patch should be sent to Linus very shortly.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 linux-headers/asm-x86/kvm.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/linux-headers/asm-x86/kvm.h b/linux-headers/asm-x86/kvm.h
index 7a0e64ccd6..06b8727a3b 100644
--- a/linux-headers/asm-x86/kvm.h
+++ b/linux-headers/asm-x86/kvm.h
@@ -383,6 +383,9 @@ struct kvm_sync_regs {
 #define KVM_X86_QUIRK_LAPIC_MMIO_HOLE	(1 << 2)
 #define KVM_X86_QUIRK_OUT_7E_INC_RIP	(1 << 3)
 
+#define KVM_STATE_NESTED_FORMAT_VMX	0
+#define KVM_STATE_NESTED_FORMAT_SVM	1
+
 #define KVM_STATE_NESTED_GUEST_MODE	0x00000001
 #define KVM_STATE_NESTED_RUN_PENDING	0x00000002
 #define KVM_STATE_NESTED_EVMCS		0x00000004
@@ -390,6 +393,11 @@ struct kvm_sync_regs {
 #define KVM_STATE_NESTED_SMM_GUEST_MODE	0x00000001
 #define KVM_STATE_NESTED_SMM_VMXON	0x00000002
 
+struct kvm_vmx_nested_state_data {
+	__u8 vmcs12[0x1000];
+	__u8 shadow_vmcs12[0x1000];
+};
+
 struct kvm_vmx_nested_state {
 	__u64 vmxon_pa;
 	__u64 vmcs_pa;
@@ -397,6 +405,9 @@ struct kvm_vmx_nested_state {
 	struct {
 		__u16 flags;
 	} smm;
+
+	__u8 pad[120 - 18];
+	struct kvm_vmx_nested_state_data data[0];
 };
 
 /* for KVM_CAP_NESTED_STATE */
-- 
2.21.0