xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drivers/firmware: Expose psci_get_version through psci_ops structure

Browse Source 
Entry into recent versions of ARM Trusted Firmware will invalidate the CPU
branch predictor state in order to protect against aliasing attacks.

This patch exposes the PSCI "VERSION" function via psci_ops, so that it
can be invoked outside of the PSCI driver where necessary.

Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Will Deacon
2018-01-02 21:45:41 +00:00
committed by Catalin Marinas
parent 0a0d111d40
commit d68e3ba530
2 changed files with 3 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/firmware/psci.c
View File

@@ -496,6 +496,8 @@ static void __init psci_init_migrate(void)
static void __init psci_0_2_set_functions(void)
{
pr_info("Using standard PSCI v0.2 function IDs\n");
psci_ops.get_version = psci_get_version;
psci_function_id[PSCI_FN_CPU_SUSPEND] =
PSCI_FN_NATIVE(0_2, CPU_SUSPEND);
psci_ops.cpu_suspend = psci_cpu_suspend;