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Mon, 01 Jul 2024 07:10:31 -0700 (PDT) Date: Mon, 1 Jul 2024 16:09:42 +0200 In-Reply-To: <20240701140940.2340297-4-ardb+git@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240701140940.2340297-4-ardb+git@google.com> X-Developer-Key: i=ardb@kernel.org; a=openpgp; fpr=F43D03328115A198C90016883D200E9CA6329909 X-Developer-Signature: v=1; a=openpgp-sha256; l=3224; i=ardb@kernel.org; h=from:subject; bh=rpn41rOAt7Mo+ERBc+rJJUgNYcPSipWWVF2TfCtIHfY=; b=owGbwMvMwCFmkMcZplerG8N4Wi2JIa1px7KSOI3Gxe3S617Vb05fwnTR2fml8n2F9fVSDhKZy uY8ZakdpSwMYhwMsmKKLAKz/77beXqiVK3zLFmYOaxMIEMYuDgFYCJ8ixj+e+Q9mfZoizRP8JG2 SoZLq2zv1MlrFEtv8d+5rGuX8CRFLkaGF57f1hVEreD50nbwySSLt6U6l9fx/5SZsnLdj71diYr feAA= X-Mailer: git-send-email 2.45.2.803.g4e1b14247a-goog Message-ID: <20240701140940.2340297-5-ardb+git@google.com> Subject: [PATCH v3 1/2] efistub/x86: Enable SMBIOS protocol handling for x86 From: Ard Biesheuvel To: linux-efi@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Ard Biesheuvel , Aditya Garg , Hans de Goede , Lukas Wunner , Kerem Karabay , Orlando Chamberlain Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Ard Biesheuvel The smbios.c source file is not currently included in the x86 build, and before we can do so, it needs some tweaks to build correctly in combination with the EFI mixed mode support. Signed-off-by: Ard Biesheuvel Reviewed-by: Lukas Wunner --- drivers/firmware/efi/libstub/Makefile | 2 +- drivers/firmware/efi/libstub/smbios.c | 42 +++++++++++++------- 2 files changed, 28 insertions(+), 16 deletions(-) diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/l= ibstub/Makefile index 06f0428a723c..1f32d6cf98d6 100644 --- a/drivers/firmware/efi/libstub/Makefile +++ b/drivers/firmware/efi/libstub/Makefile @@ -76,7 +76,7 @@ lib-$(CONFIG_EFI_GENERIC_STUB) +=3D efi-stub.o string.o i= ntrinsics.o systable.o \ =20 lib-$(CONFIG_ARM) +=3D arm32-stub.o lib-$(CONFIG_ARM64) +=3D kaslr.o arm64.o arm64-stub.o smbios.o -lib-$(CONFIG_X86) +=3D x86-stub.o +lib-$(CONFIG_X86) +=3D x86-stub.o smbios.o lib-$(CONFIG_X86_64) +=3D x86-5lvl.o lib-$(CONFIG_RISCV) +=3D kaslr.o riscv.o riscv-stub.o lib-$(CONFIG_LOONGARCH) +=3D loongarch.o loongarch-stub.o diff --git a/drivers/firmware/efi/libstub/smbios.c b/drivers/firmware/efi/l= ibstub/smbios.c index c217de2cc8d5..2b54b9c289be 100644 --- a/drivers/firmware/efi/libstub/smbios.c +++ b/drivers/firmware/efi/libstub/smbios.c @@ -6,30 +6,42 @@ =20 #include "efistub.h" =20 -typedef struct efi_smbios_protocol efi_smbios_protocol_t; - -struct efi_smbios_protocol { - efi_status_t (__efiapi *add)(efi_smbios_protocol_t *, efi_handle_t, - u16 *, struct efi_smbios_record *); - efi_status_t (__efiapi *update_string)(efi_smbios_protocol_t *, u16 *, - unsigned long *, u8 *); - efi_status_t (__efiapi *remove)(efi_smbios_protocol_t *, u16); - efi_status_t (__efiapi *get_next)(efi_smbios_protocol_t *, u16 *, u8 *, - struct efi_smbios_record **, - efi_handle_t *); - - u8 major_version; - u8 minor_version; +typedef union efi_smbios_protocol efi_smbios_protocol_t; + +union efi_smbios_protocol { + struct { + efi_status_t (__efiapi *add)(efi_smbios_protocol_t *, efi_handle_t, + u16 *, struct efi_smbios_record *); + efi_status_t (__efiapi *update_string)(efi_smbios_protocol_t *, u16 *, + unsigned long *, u8 *); + efi_status_t (__efiapi *remove)(efi_smbios_protocol_t *, u16); + efi_status_t (__efiapi *get_next)(efi_smbios_protocol_t *, u16 *, u8 *, + struct efi_smbios_record **, + efi_handle_t *); + + u8 major_version; + u8 minor_version; + }; + struct { + u32 add; + u32 update_string; + u32 remove; + u32 get_next; + + u8 major_version; + u8 minor_version; + } mixed_mode; }; =20 const struct efi_smbios_record *efi_get_smbios_record(u8 type) { + static const efi_guid_t guid =3D EFI_SMBIOS_PROTOCOL_GUID; struct efi_smbios_record *record; efi_smbios_protocol_t *smbios; efi_status_t status; u16 handle =3D 0xfffe; =20 - status =3D efi_bs_call(locate_protocol, &EFI_SMBIOS_PROTOCOL_GUID, NULL, + status =3D efi_bs_call(locate_protocol, (efi_guid_t *)&guid, NULL, (void **)&smbios) ?: efi_call_proto(smbios, get_next, &handle, &type, &record, NULL); if (status !=3D EFI_SUCCESS) --=20 2.45.2.803.g4e1b14247a-goog From nobody Sat Feb 7 19:00:08 2026 Received: from mail-yb1-f202.google.com (mail-yb1-f202.google.com [209.85.219.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B080416131A for ; Mon, 1 Jul 2024 14:10:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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Mon, 01 Jul 2024 07:10:34 -0700 (PDT) Date: Mon, 1 Jul 2024 16:09:43 +0200 In-Reply-To: <20240701140940.2340297-4-ardb+git@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240701140940.2340297-4-ardb+git@google.com> X-Developer-Key: i=ardb@kernel.org; a=openpgp; fpr=F43D03328115A198C90016883D200E9CA6329909 X-Developer-Signature: v=1; a=openpgp-sha256; l=4798; i=ardb@kernel.org; h=from:subject; bh=XckN2TD4yRzsK8t8+e7/l7CLqJsGkKaE+dxkRz+/EXQ=; b=owGbwMvMwCFmkMcZplerG8N4Wi2JIa1px/KX4c+0/V6VfPsanLpEbnbjjtJ07ZMi74M0zu1M+ 8F/cnFGRwkLgxgHg6yYIovA7L/vdp6eKFXrPEsWZg4rE8gQBi5OAZhIy0FGhsPnN4kyGC67zbGR Qeav+JKrfCH5P12kD5sWmT6s+fdYaDbDj/lh3Y8+rrdwCUw+zciXtD3CYtcEHnfb3SnMh28xnHP kBwA= X-Mailer: git-send-email 2.45.2.803.g4e1b14247a-goog Message-ID: <20240701140940.2340297-6-ardb+git@google.com> Subject: [PATCH v3 2/2] x86/efistub: Call Apple set_os protocol on dual GPU Intel Macs From: Ard Biesheuvel To: linux-efi@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Ard Biesheuvel , Aditya Garg , Hans de Goede , Lukas Wunner , Kerem Karabay , Orlando Chamberlain Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Aditya Garg 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 : https://lists.gnu.org/archive/html/grub-devel/2013-12/msg00442.html Credits also goto Kerem Karabay for helping porting the patch to the Linux kernel. Cc: Lukas Wunner Cc: Orlando Chamberlain Signed-off-by: Aditya Garg [ardb: limit using list of DMI matches kindly provided by Lukas] Signed-off-by: Ard Biesheuvel Reviewed-by: Lukas Wunner --- drivers/firmware/efi/libstub/x86-stub.c | 72 +++++++++++++++++++- include/linux/efi.h | 1 + 2 files changed, 70 insertions(+), 3 deletions(-) diff --git a/drivers/firmware/efi/libstub/x86-stub.c b/drivers/firmware/efi= /libstub/x86-stub.c index 68df27bd71c9..4870950c96d5 100644 --- a/drivers/firmware/efi/libstub/x86-stub.c +++ b/drivers/firmware/efi/libstub/x86-stub.c @@ -225,6 +225,69 @@ static void retrieve_apple_device_properties(struct bo= ot_params *boot_params) } } =20 +static bool apple_match_product_name(void) +{ + static const char type1_product_matches[][15] =3D { + "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 =3D (struct efi_smbios_type1_record *)efi_get_smbios_record(1); + if (!record) + return false; + + product =3D efi_get_smbios_string(&record->header, 1, product_name); + if (!product) + return false; + + for (int i =3D 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; + static const efi_guid_t guid =3D APPLE_SET_OS_PROTOCOL_GUID; + efi_status_t status; + + if (!efi_is_64bit() || !apple_match_product_name()) + return; + + status =3D efi_bs_call(locate_protocol, (efi_guid_t *)&guid, NULL, + (void **)&set_os); + if (status !=3D EFI_SUCCESS) + return; + + if (set_os->version >=3D 2) { + status =3D set_os->set_os_vendor("Apple Inc."); + if (status !=3D 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 =3D set_os->set_os_version("Mac OS X 10.9"); + if (status !=3D 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 +398,12 @@ static const efi_char16_t apple[] =3D L"Apple"; =20 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(); + } } =20 /* diff --git a/include/linux/efi.h b/include/linux/efi.h index 418e555459da..e28873eb19ed 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, 0x46= 9f, 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, 0x44f= b, 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, 0x9= 3, 0x0b, 0xe4, 0xd7, 0x6d, 0xb2, 0x72, 0x0f) #define EFI_TCG2_FINAL_EVENTS_TABLE_GUID EFI_GUID(0x1e2ed096, 0x30e2, 0x42= 54, 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) --=20 2.45.2.803.g4e1b14247a-goog