KVM: s390: kernel header addition for guest debugging

This patch adds the structs to the kernel headers needed to pass information
from/to userspace in order to debug a guest on s390 with hardware support.

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/arch/s390/include/uapi/asm/kvm.h b/arch/s390/include/uapi/asm/kvm.h
index e35c79821d29..b8c0f07a0e08 100644
--- a/arch/s390/include/uapi/asm/kvm.h
+++ b/arch/s390/include/uapi/asm/kvm.h
@@ -79,11 +79,31 @@ struct kvm_fpu {
         __u64 fprs[16];
 };
 
+#define KVM_GUESTDBG_USE_HW_BP          0x00010000
+
+#define KVM_HW_BP                       1
+#define KVM_HW_WP_WRITE                 2
+#define KVM_SINGLESTEP                  4
+
 struct kvm_debug_exit_arch {
+        __u64 addr;
+        __u8 type;
+        __u8 pad[7]; /* Should be set to 0 */
+};
+
+struct kvm_hw_breakpoint {
+        __u64 addr;
+        __u64 phys_addr;
+        __u64 len;
+        __u8 type;
+        __u8 pad[7]; /* Should be set to 0 */
 };
 
 /* for KVM_SET_GUEST_DEBUG */
 struct kvm_guest_debug_arch {
+        __u32 nr_hw_bp;
+        __u32 pad; /* Should be set to 0 */
+        struct kvm_hw_breakpoint __user *hw_bp;
 };
 
 #define KVM_SYNC_PREFIX (1UL << 0)