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590f5f09 | 1 | /** @file\r |
763840c9 LE |
2 | Simple wrapper functions and utility functions that access QEMU's modern CPU\r |
3 | hotplug register block.\r | |
590f5f09 | 4 | \r |
763840c9 | 5 | These functions manipulate some of the registers described in\r |
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6 | "docs/specs/acpi_cpu_hotplug.txt" in the QEMU source. IO Ports are accessed\r |
7 | via EFI_MM_CPU_IO_PROTOCOL. If a protocol call fails, these functions don't\r | |
8 | return.\r | |
9 | \r | |
10 | Copyright (c) 2020, Red Hat, Inc.\r | |
11 | \r | |
12 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
13 | **/\r | |
14 | \r | |
15 | #ifndef QEMU_CPUHP_H_\r | |
16 | #define QEMU_CPUHP_H_\r | |
17 | \r | |
18 | #include <Protocol/MmCpuIo.h> // EFI_MM_CPU_IO_PROTOCOL\r | |
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19 | #include <Uefi/UefiBaseType.h> // EFI_STATUS\r |
20 | \r | |
21 | #include "ApicId.h" // APIC_ID\r | |
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22 | \r |
23 | UINT32\r | |
24 | QemuCpuhpReadCommandData2 (\r | |
25 | IN CONST EFI_MM_CPU_IO_PROTOCOL *MmCpuIo\r | |
26 | );\r | |
27 | \r | |
28 | UINT8\r | |
29 | QemuCpuhpReadCpuStatus (\r | |
30 | IN CONST EFI_MM_CPU_IO_PROTOCOL *MmCpuIo\r | |
31 | );\r | |
32 | \r | |
33 | UINT32\r | |
34 | QemuCpuhpReadCommandData (\r | |
35 | IN CONST EFI_MM_CPU_IO_PROTOCOL *MmCpuIo\r | |
36 | );\r | |
37 | \r | |
38 | VOID\r | |
39 | QemuCpuhpWriteCpuSelector (\r | |
40 | IN CONST EFI_MM_CPU_IO_PROTOCOL *MmCpuIo,\r | |
41 | IN UINT32 Selector\r | |
42 | );\r | |
43 | \r | |
44 | VOID\r | |
45 | QemuCpuhpWriteCommand (\r | |
46 | IN CONST EFI_MM_CPU_IO_PROTOCOL *MmCpuIo,\r | |
47 | IN UINT8 Command\r | |
48 | );\r | |
49 | \r | |
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50 | EFI_STATUS\r |
51 | QemuCpuhpCollectApicIds (\r | |
52 | IN CONST EFI_MM_CPU_IO_PROTOCOL *MmCpuIo,\r | |
53 | IN UINT32 PossibleCpuCount,\r | |
54 | IN UINT32 ApicIdCount,\r | |
55 | OUT APIC_ID *PluggedApicIds,\r | |
56 | OUT UINT32 *PluggedCount,\r | |
57 | OUT APIC_ID *ToUnplugApicIds,\r | |
58 | OUT UINT32 *ToUnplugCount\r | |
59 | );\r | |
60 | \r | |
590f5f09 | 61 | #endif // QEMU_CPUHP_H_\r |