Jordan Holt
00d8cdf92b
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Check flake / build-amd64-linux (push) Successful in 3m12s
102 lines
3.4 KiB
Diff
102 lines
3.4 KiB
Diff
From d310ddee0fb8e7a5a8b89668c6cb8f9dc863ce94 Mon Sep 17 00:00:00 2001
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From: Jordan Holt <jordan@vimium.com>
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Date: Sun, 28 Apr 2024 15:59:52 +0100
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Subject: [PATCH] Add apple_set_os EFI boot service
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---
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drivers/firmware/efi/libstub/x86-stub.c | 59 +++++++++++++++++++++++++
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include/linux/efi.h | 1 +
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2 files changed, 60 insertions(+)
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diff --git a/drivers/firmware/efi/libstub/x86-stub.c b/drivers/firmware/efi/libstub/x86-stub.c
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index d5a8182cf..be722c43a 100644
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--- a/drivers/firmware/efi/libstub/x86-stub.c
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+++ b/drivers/firmware/efi/libstub/x86-stub.c
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@@ -449,6 +449,63 @@ static void setup_graphics(struct boot_params *boot_params)
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}
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}
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+typedef struct {
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+ u64 version;
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+ void (*set_os_version) (const char *os_version);
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+ void (*set_os_vendor) (const char *os_vendor);
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+} apple_set_os_interface_t;
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+
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+static efi_status_t apple_set_os()
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+{
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+ apple_set_os_interface_t *set_os;
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+ efi_guid_t set_os_guid = APPLE_SET_OS_PROTOCOL_GUID;
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+ efi_status_t status;
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+ void **handles;
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+ unsigned long i, nr_handles, size = 0;
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+
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+ status = efi_bs_call(locate_handle, EFI_LOCATE_BY_PROTOCOL,
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+ &set_os_guid, NULL, &size, handles);
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+
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+ if (status == EFI_BUFFER_TOO_SMALL) {
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+ status = efi_bs_call(allocate_pool, EFI_LOADER_DATA,
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+ size, &handles);
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+
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+ if (status != EFI_SUCCESS)
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+ return status;
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+
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+ status = efi_bs_call(locate_handle, EFI_LOCATE_BY_PROTOCOL,
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+ &set_os_guid, NULL, &size, handles);
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+ }
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+
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+ if (status != EFI_SUCCESS)
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+ goto free_handle;
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+
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+ nr_handles = size / sizeof(void *);
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+ for (i = 0; i < nr_handles; i++) {
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+ void *h = handles[i];
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+
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+ status = efi_bs_call(handle_protocol, h,
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+ &set_os_guid, &set_os);
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+
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+ if (status != EFI_SUCCESS || !set_os)
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+ continue;
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+
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+ if (set_os->version > 0) {
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+ efi_bs_call((unsigned long)set_os->set_os_version,
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+ "Mac OS X 10.9");
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+ }
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+
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+ if (set_os->version >= 2) {
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+ efi_bs_call((unsigned long)set_os->set_os_vendor,
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+ "Apple Inc.");
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+ }
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+ }
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+
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+free_handle:
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+ efi_bs_call(free_pool, uga_handle);
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+
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+ return status;
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+}
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static void __noreturn efi_exit(efi_handle_t handle, efi_status_t status)
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{
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@@ -951,6 +1008,8 @@ void __noreturn efi_stub_entry(efi_handle_t handle,
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setup_unaccepted_memory();
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+ apple_set_os();
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+
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status = exit_boot(boot_params, handle);
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if (status != EFI_SUCCESS) {
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efi_err("exit_boot() failed!\n");
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diff --git a/include/linux/efi.h b/include/linux/efi.h
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index d59b0947f..81158014f 100644
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--- a/include/linux/efi.h
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+++ b/include/linux/efi.h
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@@ -385,6 +385,7 @@ void efi_native_runtime_setup(void);
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#define EFI_MEMORY_ATTRIBUTES_TABLE_GUID EFI_GUID(0xdcfa911d, 0x26eb, 0x469f, 0xa2, 0x20, 0x38, 0xb7, 0xdc, 0x46, 0x12, 0x20)
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#define EFI_CONSOLE_OUT_DEVICE_GUID EFI_GUID(0xd3b36f2c, 0xd551, 0x11d4, 0x9a, 0x46, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
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#define APPLE_PROPERTIES_PROTOCOL_GUID EFI_GUID(0x91bd12fe, 0xf6c3, 0x44fb, 0xa5, 0xb7, 0x51, 0x22, 0xab, 0x30, 0x3a, 0xe0)
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+#define APPLE_SET_OS_PROTOCOL_GUID EFI_GUID(0xc5c5da95, 0x7d5c, 0x45e6, 0xb2, 0xf1, 0x3f, 0xd5, 0x2b, 0xb1, 0x00, 0x77)
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#define EFI_TCG2_PROTOCOL_GUID EFI_GUID(0x607f766c, 0x7455, 0x42be, 0x93, 0x0b, 0xe4, 0xd7, 0x6d, 0xb2, 0x72, 0x0f)
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#define EFI_TCG2_FINAL_EVENTS_TABLE_GUID EFI_GUID(0x1e2ed096, 0x30e2, 0x4254, 0xbd, 0x89, 0x86, 0x3b, 0xbe, 0xf8, 0x23, 0x25)
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#define EFI_LOAD_FILE_PROTOCOL_GUID EFI_GUID(0x56ec3091, 0x954c, 0x11d2, 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
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--
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2.42.0
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