1 #include "hyperv.h"
2 #include "asm/io.h"
3 #include "smp.h"
4
5 enum {
6 HV_TEST_DEV_SINT_ROUTE_CREATE = 1,
7 HV_TEST_DEV_SINT_ROUTE_DESTROY,
8 HV_TEST_DEV_SINT_ROUTE_SET_SINT,
9 HV_TEST_DEV_MSG_CONN_CREATE,
10 HV_TEST_DEV_MSG_CONN_DESTROY,
11 HV_TEST_DEV_EVT_CONN_CREATE,
12 HV_TEST_DEV_EVT_CONN_DESTROY,
13 };
14
synic_ctl(u32 ctl,u32 vcpu_id,u32 sint,u32 conn_id)15 static void synic_ctl(u32 ctl, u32 vcpu_id, u32 sint, u32 conn_id)
16 {
17 outl((conn_id << 24) | (ctl << 16) | (vcpu_id << 8) | sint, 0x3000);
18 }
19
sint_enable(u8 sint,u8 vec,bool auto_eoi)20 static void sint_enable(u8 sint, u8 vec, bool auto_eoi)
21 {
22 wrmsr(HV_X64_MSR_SINT0 + sint,
23 (u64)vec | (auto_eoi ? HV_SYNIC_SINT_AUTO_EOI : 0));
24 }
25
sint_disable(u8 sint)26 static void sint_disable(u8 sint)
27 {
28 wrmsr(HV_X64_MSR_SINT0 + sint, 0xff | HV_SYNIC_SINT_MASKED);
29 }
30
synic_sint_create(u8 sint,u8 vec,bool auto_eoi)31 void synic_sint_create(u8 sint, u8 vec, bool auto_eoi)
32 {
33 synic_ctl(HV_TEST_DEV_SINT_ROUTE_CREATE, smp_id(), sint, 0);
34 sint_enable(sint, vec, auto_eoi);
35 }
36
synic_sint_set(u8 vcpu,u8 sint)37 void synic_sint_set(u8 vcpu, u8 sint)
38 {
39 synic_ctl(HV_TEST_DEV_SINT_ROUTE_SET_SINT, vcpu, sint, 0);
40 }
41
synic_sint_destroy(u8 sint)42 void synic_sint_destroy(u8 sint)
43 {
44 sint_disable(sint);
45 synic_ctl(HV_TEST_DEV_SINT_ROUTE_DESTROY, smp_id(), sint, 0);
46 }
47
msg_conn_create(u8 sint,u8 vec,u8 conn_id)48 void msg_conn_create(u8 sint, u8 vec, u8 conn_id)
49 {
50 synic_ctl(HV_TEST_DEV_MSG_CONN_CREATE, smp_id(), sint, conn_id);
51 sint_enable(sint, vec, true);
52 }
53
msg_conn_destroy(u8 sint,u8 conn_id)54 void msg_conn_destroy(u8 sint, u8 conn_id)
55 {
56 sint_disable(sint);
57 synic_ctl(HV_TEST_DEV_MSG_CONN_DESTROY, 0, 0, conn_id);
58 }
59
evt_conn_create(u8 sint,u8 vec,u8 conn_id)60 void evt_conn_create(u8 sint, u8 vec, u8 conn_id)
61 {
62 synic_ctl(HV_TEST_DEV_EVT_CONN_CREATE, smp_id(), sint, conn_id);
63 sint_enable(sint, vec, true);
64 }
65
evt_conn_destroy(u8 sint,u8 conn_id)66 void evt_conn_destroy(u8 sint, u8 conn_id)
67 {
68 sint_disable(sint);
69 synic_ctl(HV_TEST_DEV_EVT_CONN_DESTROY, 0, 0, conn_id);
70 }
71