71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
#include "hyperv.h"
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#include "asm/io.h"
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#include "smp.h"
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enum {
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HV_TEST_DEV_SINT_ROUTE_CREATE = 1,
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HV_TEST_DEV_SINT_ROUTE_DESTROY,
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HV_TEST_DEV_SINT_ROUTE_SET_SINT,
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HV_TEST_DEV_MSG_CONN_CREATE,
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HV_TEST_DEV_MSG_CONN_DESTROY,
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HV_TEST_DEV_EVT_CONN_CREATE,
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HV_TEST_DEV_EVT_CONN_DESTROY,
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};
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static void synic_ctl(u32 ctl, u32 vcpu_id, u32 sint, u32 conn_id)
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{
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outl((conn_id << 24) | (ctl << 16) | (vcpu_id << 8) | sint, 0x3000);
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}
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static void sint_enable(u8 sint, u8 vec, bool auto_eoi)
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{
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wrmsr(HV_X64_MSR_SINT0 + sint,
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(u64)vec | (auto_eoi ? HV_SYNIC_SINT_AUTO_EOI : 0));
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}
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static void sint_disable(u8 sint)
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{
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wrmsr(HV_X64_MSR_SINT0 + sint, 0xff | HV_SYNIC_SINT_MASKED);
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}
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void synic_sint_create(u8 sint, u8 vec, bool auto_eoi)
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{
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synic_ctl(HV_TEST_DEV_SINT_ROUTE_CREATE, smp_id(), sint, 0);
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sint_enable(sint, vec, auto_eoi);
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}
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void synic_sint_set(u8 vcpu, u8 sint)
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{
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synic_ctl(HV_TEST_DEV_SINT_ROUTE_SET_SINT, vcpu, sint, 0);
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}
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void synic_sint_destroy(u8 sint)
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{
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sint_disable(sint);
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synic_ctl(HV_TEST_DEV_SINT_ROUTE_DESTROY, smp_id(), sint, 0);
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}
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void msg_conn_create(u8 sint, u8 vec, u8 conn_id)
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{
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synic_ctl(HV_TEST_DEV_MSG_CONN_CREATE, smp_id(), sint, conn_id);
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sint_enable(sint, vec, true);
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}
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void msg_conn_destroy(u8 sint, u8 conn_id)
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{
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sint_disable(sint);
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synic_ctl(HV_TEST_DEV_MSG_CONN_DESTROY, 0, 0, conn_id);
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}
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void evt_conn_create(u8 sint, u8 vec, u8 conn_id)
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{
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synic_ctl(HV_TEST_DEV_EVT_CONN_CREATE, smp_id(), sint, conn_id);
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sint_enable(sint, vec, true);
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}
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void evt_conn_destroy(u8 sint, u8 conn_id)
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{
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sint_disable(sint);
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synic_ctl(HV_TEST_DEV_EVT_CONN_DESTROY, 0, 0, conn_id);
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}
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