From 50dcc2e0d62e3c4a54f39673c4dc3dcde7c74d52 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Tue, 17 Oct 2023 15:25:13 +0200 Subject: x86/boot: efistub: Assign global boot_params variable Now that the x86 EFI stub calls into some APIs exposed by the decompressor (e.g., kaslr_get_random_long()), it is necessary to ensure that the global boot_params variable is set correctly before doing so. Signed-off-by: Ard Biesheuvel Signed-off-by: Ingo Molnar Cc: linux-kernel@vger.kernel.org --- drivers/firmware/efi/libstub/x86-stub.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/firmware/efi') diff --git a/drivers/firmware/efi/libstub/x86-stub.c b/drivers/firmware/efi/libstub/x86-stub.c index 3bfc59637dd1..76cc0d08e68a 100644 --- a/drivers/firmware/efi/libstub/x86-stub.c +++ b/drivers/firmware/efi/libstub/x86-stub.c @@ -818,6 +818,8 @@ void __noreturn efi_stub_entry(efi_handle_t handle, unsigned long kernel_entry; efi_status_t status; + boot_params_ptr = boot_params; + efi_system_table = sys_table_arg; /* Check if we were booted by the EFI firmware */ if (efi_system_table->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE) -- cgit v1.2.3