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efi_loader: initialize the RNG protocol after the TCC2

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Due to U-Boot's lazy binding the RNG presented by the TCG is not available
until the EFI_TCG2 protocol has been initialized.  Since the TPM has a
built-in RNG device we can use for the OS randomization, move the RNG
protocol installation after the TCG.

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
This commit is contained in:
Ilias Apalodimas 2022-07-22 21:32:03 +05:30
parent 5e5937822a
commit 5d98329196
1 changed files with 7 additions and 7 deletions
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14
lib/efi_loader/efi_setup.c
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@ -246,13 +246,6 @@ efi_status_t efi_init_obj_list(void)
/* Set up console modes */ /* Set up console modes */
efi_setup_console_size(); efi_setup_console_size();
/* Install EFI_RNG_PROTOCOL */
if (IS_ENABLED(CONFIG_EFI_RNG_PROTOCOL)) {
ret = efi_rng_register();
if (ret != EFI_SUCCESS)
goto out;
}
/* Initialize variable services */ /* Initialize variable services */
ret = efi_init_variables(); ret = efi_init_variables();
if (ret != EFI_SUCCESS) if (ret != EFI_SUCCESS)
@ -289,6 +282,13 @@ efi_status_t efi_init_obj_list(void)
goto out; goto out;
} }
/* Install EFI_RNG_PROTOCOL */
if (IS_ENABLED(CONFIG_EFI_RNG_PROTOCOL)) {
ret = efi_rng_register();
if (ret != EFI_SUCCESS)
goto out;
}
if (IS_ENABLED(CONFIG_EFI_RISCV_BOOT_PROTOCOL)) { if (IS_ENABLED(CONFIG_EFI_RISCV_BOOT_PROTOCOL)) {
ret = efi_riscv_register(); ret = efi_riscv_register();
if (ret != EFI_SUCCESS) if (ret != EFI_SUCCESS)