mirrors/Atmosphere
1
0
Fork 0
mirror of https://github.com/Atmosphere-NX/Atmosphere.git synced 2024-11-12 15:06:41 +00:00
Code Issues Releases Activity

kern: enforce maximum secure region size

Browse source
This commit is contained in:
Michael Scire 2022-03-22 14:16:02 -07:00
parent de6d8d4ab4
commit 262a066c8c
1 changed files with 7 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
libraries/libmesosphere/source/board/nintendo/nx/kern_k_system_control.cpp
View file

@ -23,6 +23,8 @@ namespace ams::kern::board::nintendo::nx {
constexpr size_t SecureAlignment = 128_KB;
constexpr size_t SecureSizeMax = util::AlignDown(512_MB - 1, SecureAlignment);
/* Global variables for panic. */
constinit bool g_call_smc_on_panic;
@ -191,6 +193,11 @@ namespace ams::kern::board::nintendo::nx {
}
bool SetSecureRegion(KPhysicalAddress phys_addr, size_t size) {
/* Ensure size is valid. */
if (size > SecureSizeMax) {
return false;
}
/* Ensure address and size are aligned. */
if (!util::IsAligned(GetInteger(phys_addr), SecureAlignment)) {
return false;