summaryrefslogtreecommitdiffstats
path: root/include/uapi
diff options
context:
space:
mode:
authorJon Doron <arilou@gmail.com>2020-05-29 16:45:40 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2020-06-01 04:26:11 -0400
commitf97f5a56f5977311f3833056a73cdbb0ee56cb1e (patch)
tree5e25d905951ceb38ac155d5779c1cefece494e9e /include/uapi
parent22ad0026d0978d4211eb07a2be77f49fb40d86eb (diff)
downloadlinux-f97f5a56f5977311f3833056a73cdbb0ee56cb1e.tar.bz2
x86/kvm/hyper-v: Add support for synthetic debugger interface
Add support for Hyper-V synthetic debugger (syndbg) interface. The syndbg interface is using MSRs to emulate a way to send/recv packets data. The debug transport dll (kdvm/kdnet) will identify if Hyper-V is enabled and if it supports the synthetic debugger interface it will attempt to use it, instead of trying to initialize a network adapter. Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Jon Doron <arilou@gmail.com> Message-Id: <20200529134543.1127440-4-arilou@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/linux/kvm.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index cc04aceb8793..6721eb563eda 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -188,6 +188,7 @@ struct kvm_s390_cmma_log {
struct kvm_hyperv_exit {
#define KVM_EXIT_HYPERV_SYNIC 1
#define KVM_EXIT_HYPERV_HCALL 2
+#define KVM_EXIT_HYPERV_SYNDBG 3
__u32 type;
__u32 pad1;
union {
@@ -203,6 +204,15 @@ struct kvm_hyperv_exit {
__u64 result;
__u64 params[2];
} hcall;
+ struct {
+ __u32 msr;
+ __u32 pad2;
+ __u64 control;
+ __u64 status;
+ __u64 send_page;
+ __u64 recv_page;
+ __u64 pending_page;
+ } syndbg;
} u;
};