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| author | Ard Biesheuvel <ardb+git@google.com> | 2024-03-04 14:19:55 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-03-06 17:45:19 +0300 |
| commit | 3a396c409a39ce701533f3f55f3db0ab700aaeae (patch) | |
| tree | 15652b6bb610e77ab6b5d47236c016d7d9254be9 /drivers/firmware | |
| parent | 8f05493706ff8296d26b449db295b1dbb1de31dd (diff) | |
| download | linux-3a396c409a39ce701533f3f55f3db0ab700aaeae.tar.xz | |
x86/boot: efistub: Assign global boot_params variable
From: Ard Biesheuvel <ardb@kernel.org>
[ Commit 50dcc2e0d62e3c4a54f39673c4dc3dcde7c74d52 upstream ]
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 <ardb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/firmware')
| -rw-r--r-- | drivers/firmware/efi/libstub/x86-stub.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/firmware/efi/libstub/x86-stub.c b/drivers/firmware/efi/libstub/x86-stub.c index c1dcc86fcc3d..b183b40195ee 100644 --- a/drivers/firmware/efi/libstub/x86-stub.c +++ b/drivers/firmware/efi/libstub/x86-stub.c @@ -827,6 +827,8 @@ 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) |