diff options
Diffstat (limited to 'drivers/firmware/efi/libstub')
-rw-r--r-- | drivers/firmware/efi/libstub/arm64-stub.c | 10 | ||||
-rw-r--r-- | drivers/firmware/efi/libstub/secureboot.c | 3 | ||||
-rw-r--r-- | drivers/firmware/efi/libstub/tpm.c | 2 |
3 files changed, 14 insertions, 1 deletions
diff --git a/drivers/firmware/efi/libstub/arm64-stub.c b/drivers/firmware/efi/libstub/arm64-stub.c index b9bd827caa22..1b4d465cc5d9 100644 --- a/drivers/firmware/efi/libstub/arm64-stub.c +++ b/drivers/firmware/efi/libstub/arm64-stub.c @@ -98,6 +98,16 @@ efi_status_t handle_kernel_image(efi_system_table_t *sys_table_arg, (phys_seed >> 32) & mask : TEXT_OFFSET; /* + * With CONFIG_RANDOMIZE_TEXT_OFFSET=y, TEXT_OFFSET may not + * be a multiple of EFI_KIMG_ALIGN, and we must ensure that + * we preserve the misalignment of 'offset' relative to + * EFI_KIMG_ALIGN so that statically allocated objects whose + * alignment exceeds PAGE_SIZE appear correctly aligned in + * memory. + */ + offset |= TEXT_OFFSET % EFI_KIMG_ALIGN; + + /* * If KASLR is enabled, and we have some randomness available, * locate the kernel at a randomized offset in physical memory. */ diff --git a/drivers/firmware/efi/libstub/secureboot.c b/drivers/firmware/efi/libstub/secureboot.c index 8f07eb414c00..72d9dfbebf08 100644 --- a/drivers/firmware/efi/libstub/secureboot.c +++ b/drivers/firmware/efi/libstub/secureboot.c @@ -30,6 +30,9 @@ static const efi_char16_t shim_MokSBState_name[] = L"MokSBState"; /* * Determine whether we're in secure boot mode. + * + * Please keep the logic in sync with + * arch/x86/xen/efi.c:xen_efi_get_secureboot(). */ enum efi_secureboot_mode efi_get_secureboot(efi_system_table_t *sys_table_arg) { diff --git a/drivers/firmware/efi/libstub/tpm.c b/drivers/firmware/efi/libstub/tpm.c index 9d08cea3f1b0..caa37a6dd9d4 100644 --- a/drivers/firmware/efi/libstub/tpm.c +++ b/drivers/firmware/efi/libstub/tpm.c @@ -59,7 +59,7 @@ void efi_enable_reset_attack_mitigation(efi_system_table_t *sys_table_arg) #endif -void efi_retrieve_tpm2_eventlog_1_2(efi_system_table_t *sys_table_arg) +static void efi_retrieve_tpm2_eventlog_1_2(efi_system_table_t *sys_table_arg) { efi_guid_t tcg2_guid = EFI_TCG2_PROTOCOL_GUID; efi_guid_t linux_eventlog_guid = LINUX_EFI_TPM_EVENT_LOG_GUID; |