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authorAndrey Smetanin <asmetanin@virtuozzo.com>2016-02-11 16:45:01 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2016-02-16 20:48:44 +0300
commit83326e43f27e9a8a501427a0060f8af519a39bb2 (patch)
tree927fa9aed03b9593803bee5754a87d0b15db7e45 /Documentation/virtual/kvm
parentb2fdc2570a6c4b1fe950c11a2e9ce949f5190765 (diff)
downloadlinux-83326e43f27e9a8a501427a0060f8af519a39bb2.tar.xz
kvm/x86: Hyper-V VMBus hypercall userspace exit
The patch implements KVM_EXIT_HYPERV userspace exit functionality for Hyper-V VMBus hypercalls: HV_X64_HCALL_POST_MESSAGE, HV_X64_HCALL_SIGNAL_EVENT. Changes v3: * use vcpu->arch.complete_userspace_io to setup hypercall result Changes v2: * use KVM_EXIT_HYPERV for hypercalls Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com> Reviewed-by: Roman Kagan <rkagan@virtuozzo.com> CC: Gleb Natapov <gleb@kernel.org> CC: Paolo Bonzini <pbonzini@redhat.com> CC: Joerg Roedel <joro@8bytes.org> CC: "K. Y. Srinivasan" <kys@microsoft.com> CC: Haiyang Zhang <haiyangz@microsoft.com> CC: Roman Kagan <rkagan@virtuozzo.com> CC: Denis V. Lunev <den@openvz.org> CC: qemu-devel@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'Documentation/virtual/kvm')
-rw-r--r--Documentation/virtual/kvm/api.txt6
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index 07e4cdf02407..4a661e555c09 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -3339,6 +3339,7 @@ EOI was received.
struct kvm_hyperv_exit {
#define KVM_EXIT_HYPERV_SYNIC 1
+#define KVM_EXIT_HYPERV_HCALL 2
__u32 type;
union {
struct {
@@ -3347,6 +3348,11 @@ EOI was received.
__u64 evt_page;
__u64 msg_page;
} synic;
+ struct {
+ __u64 input;
+ __u64 result;
+ __u64 params[2];
+ } hcall;
} u;
};
/* KVM_EXIT_HYPERV */