asm-generic/hyperv: Add definitions for Get/SetVpRegister hypercalls

Add definitions for GetVpRegister and SetVpRegister hypercalls, which
are implemented for both x86 and ARM64.

Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20200422195737.10223-5-mikelley@microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>

diff --git a/include/asm-generic/hyperv-tlfs.h b/include/asm-generic/hyperv-tlfs.h
index 1f92ef9..262fae9 100644 (file)
--- a/include/asm-generic/hyperv-tlfs.h
+++ b/include/asm-generic/hyperv-tlfs.h
@@ -141,6 +141,8 @@ struct ms_hyperv_tsc_page {
 #define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX  0x0013
 #define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX   0x0014
 #define HVCALL_SEND_IPI_EX                     0x0015
+#define HVCALL_GET_VP_REGISTERS                        0x0050
+#define HVCALL_SET_VP_REGISTERS                        0x0051
 #define HVCALL_POST_MESSAGE                    0x005c
 #define HVCALL_SIGNAL_EVENT                    0x005d
 #define HVCALL_RETARGET_INTERRUPT              0x007e
@@ -439,4 +441,53 @@ struct hv_retarget_device_interrupt {
        struct hv_device_interrupt_target int_target;
 } __packed __aligned(8);
 
+
+/* HvGetVpRegisters hypercall input with variable size reg name list*/
+struct hv_get_vp_registers_input {
+       struct {
+               u64 partitionid;
+               u32 vpindex;
+               u8  inputvtl;
+               u8  padding[3];
+       } header;
+       struct input {
+               u32 name0;
+               u32 name1;
+       } element[];
+} __packed;
+
+
+/* HvGetVpRegisters returns an array of these output elements */
+struct hv_get_vp_registers_output {
+       union {
+               struct {
+                       u32 a;
+                       u32 b;
+                       u32 c;
+                       u32 d;
+               } as32 __packed;
+               struct {
+                       u64 low;
+                       u64 high;
+               } as64 __packed;
+       };
+};
+
+/* HvSetVpRegisters hypercall with variable size reg name/value list*/
+struct hv_set_vp_registers_input {
+       struct {
+               u64 partitionid;
+               u32 vpindex;
+               u8  inputvtl;
+               u8  padding[3];
+       } header;
+       struct {
+               u32 name;
+               u32 padding1;
+               u64 padding2;
+               u64 valuelow;
+               u64 valuehigh;
+       } element[];
+} __packed;
+
 #endif