forked from t2linux/linux-t2-patches
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy path5003-enable-apple-os-set.patch
134 lines (124 loc) · 4.79 KB
/
5003-enable-apple-os-set.patch
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
From d68cc8abc357c05ca1567458965f009add8bab69 Mon Sep 17 00:00:00 2001
From: Aditya Garg <[email protected]>
Date: Sun, 30 Jun 2024 19:24:54 +0000
Subject: x86/efistub: Call Apple set_os protocol on dual GPU Intel Macs
0c18184de990 ("platform/x86: apple-gmux: support MMIO gmux on T2 Macs")
brought support for T2 Macs in apple-gmux. But in order to use dual GPU,
the integrated GPU has to be enabled. On such dual GPU EFI Macs, the EFI
stub needs to report that it is booting macOS in order to prevent the
firmware from disabling the iGPU.
This patch is also applicable for some non T2 Intel Macs.
Based on this patch for GRUB by Andreas Heider <[email protected]>:
https://lists.gnu.org/archive/html/grub-devel/2013-12/msg00442.html
Credits also goto Kerem Karabay <[email protected]> for helping porting
the patch to the Linux kernel.
Cc: Orlando Chamberlain <[email protected]>
Signed-off-by: Aditya Garg <[email protected]>
[ardb: limit scope using list of DMI matches provided by Lukas and Orlando]
Reviewed-by: Lukas Wunner <[email protected]>
Tested-by: Aditya Garg <[email protected]>
Signed-off-by: Ard Biesheuvel <[email protected]>
---
drivers/firmware/efi/libstub/x86-stub.c | 71 +++++++++++++++++++++++++++++++--
include/linux/efi.h | 1 +
2 files changed, 69 insertions(+), 3 deletions(-)
diff --git a/drivers/firmware/efi/libstub/x86-stub.c b/drivers/firmware/efi/libstub/x86-stub.c
index 68df27bd71c9b4..51b7185f8707ff 100644
--- a/drivers/firmware/efi/libstub/x86-stub.c
+++ b/drivers/firmware/efi/libstub/x86-stub.c
@@ -225,6 +225,68 @@ static void retrieve_apple_device_properties(struct boot_params *boot_params)
}
}
+static bool apple_match_product_name(void)
+{
+ static const char type1_product_matches[][15] = {
+ "MacBookPro11,3",
+ "MacBookPro11,5",
+ "MacBookPro13,3",
+ "MacBookPro14,3",
+ "MacBookPro15,1",
+ "MacBookPro15,3",
+ "MacBookPro16,1",
+ "MacBookPro16,4",
+ };
+ const struct efi_smbios_type1_record *record;
+ const u8 *product;
+
+ record = (struct efi_smbios_type1_record *)efi_get_smbios_record(1);
+ if (!record)
+ return false;
+
+ product = efi_get_smbios_string(record, product_name);
+ if (!product)
+ return false;
+
+ for (int i = 0; i < ARRAY_SIZE(type1_product_matches); i++) {
+ if (!strcmp(product, type1_product_matches[i]))
+ return true;
+ }
+
+ return false;
+}
+
+static void apple_set_os(void)
+{
+ struct {
+ unsigned long version;
+ efi_status_t (__efiapi *set_os_version)(const char *);
+ efi_status_t (__efiapi *set_os_vendor)(const char *);
+ } *set_os;
+ efi_status_t status;
+
+ if (!efi_is_64bit() || !apple_match_product_name())
+ return;
+
+ status = efi_bs_call(locate_protocol, &APPLE_SET_OS_PROTOCOL_GUID, NULL,
+ (void **)&set_os);
+ if (status != EFI_SUCCESS)
+ return;
+
+ if (set_os->version >= 2) {
+ status = set_os->set_os_vendor("Apple Inc.");
+ if (status != EFI_SUCCESS)
+ efi_err("Failed to set OS vendor via apple_set_os\n");
+ }
+
+ if (set_os->version > 0) {
+ /* The version being set doesn't seem to matter */
+ status = set_os->set_os_version("Mac OS X 10.9");
+ if (status != EFI_SUCCESS)
+ efi_err("Failed to set OS version via apple_set_os\n");
+ }
+}
+
efi_status_t efi_adjust_memory_range_protection(unsigned long start,
unsigned long size)
{
@@ -335,9 +397,12 @@ static const efi_char16_t apple[] = L"Apple";
static void setup_quirks(struct boot_params *boot_params)
{
- if (IS_ENABLED(CONFIG_APPLE_PROPERTIES) &&
- !memcmp(efistub_fw_vendor(), apple, sizeof(apple)))
- retrieve_apple_device_properties(boot_params);
+ if (!memcmp(efistub_fw_vendor(), apple, sizeof(apple))) {
+ if (IS_ENABLED(CONFIG_APPLE_PROPERTIES))
+ retrieve_apple_device_properties(boot_params);
+
+ apple_set_os();
+ }
}
/*
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 2a539816a4362d..3a6c04a9f9aadc 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -385,6 +385,7 @@ void efi_native_runtime_setup(void);
#define EFI_MEMORY_ATTRIBUTES_TABLE_GUID EFI_GUID(0xdcfa911d, 0x26eb, 0x469f, 0xa2, 0x20, 0x38, 0xb7, 0xdc, 0x46, 0x12, 0x20)
#define EFI_CONSOLE_OUT_DEVICE_GUID EFI_GUID(0xd3b36f2c, 0xd551, 0x11d4, 0x9a, 0x46, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
#define APPLE_PROPERTIES_PROTOCOL_GUID EFI_GUID(0x91bd12fe, 0xf6c3, 0x44fb, 0xa5, 0xb7, 0x51, 0x22, 0xab, 0x30, 0x3a, 0xe0)
+#define APPLE_SET_OS_PROTOCOL_GUID EFI_GUID(0xc5c5da95, 0x7d5c, 0x45e6, 0xb2, 0xf1, 0x3f, 0xd5, 0x2b, 0xb1, 0x00, 0x77)
#define EFI_TCG2_PROTOCOL_GUID EFI_GUID(0x607f766c, 0x7455, 0x42be, 0x93, 0x0b, 0xe4, 0xd7, 0x6d, 0xb2, 0x72, 0x0f)
#define EFI_TCG2_FINAL_EVENTS_TABLE_GUID EFI_GUID(0x1e2ed096, 0x30e2, 0x4254, 0xbd, 0x89, 0x86, 0x3b, 0xbe, 0xf8, 0x23, 0x25)
#define EFI_LOAD_FILE_PROTOCOL_GUID EFI_GUID(0x56ec3091, 0x954c, 0x11d2, 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
--
cgit 1.2.3-korg