On Fri, Apr 08, 2022, Chao Peng wrote:

On Mon, Mar 28, 2022 at 09:56:33PM +0000, Sean Christopherson wrote:

quoted

struct kvm_userspace_memory_region_ext {
#ifdef __KERNEL__

Is this #ifndef? As I think anonymous struct is only for kernel?

Doh, yes, I inverted that.

Thanks,
Chao

quoted

	struct kvm_userspace_memory_region region;
#else
	struct kvm_userspace_memory_region;
#endif
	__u64 private_offset;
	__u32 private_fd;
	__u32 padding[5];
};

#ifdef __KERNEL__
#define kvm_user_mem_region kvm_userspace_memory_region_ext
#endif

[*] https://lore.kernel.org/all/20220301145233.3689119-1-arnd@kernel.org (local)

quoted

+	__u64 private_offset;
+	__u32 private_fd;
+	__u32 padding[5];
+};