diff options
| -rw-r--r-- | bootloader_message/bootloader_message.cpp | 10 | ||||
| -rw-r--r-- | bootloader_message/include/bootloader_message/bootloader_message.h | 20 |
2 files changed, 30 insertions, 0 deletions
diff --git a/bootloader_message/bootloader_message.cpp b/bootloader_message/bootloader_message.cpp index b70d54e5c..1ea56cd4e 100644 --- a/bootloader_message/bootloader_message.cpp +++ b/bootloader_message/bootloader_message.cpp @@ -304,6 +304,16 @@ bool WriteMiscVirtualAbMessage(const misc_virtual_ab_message& message, std::stri offsetof(misc_system_space_layout, virtual_ab_message), err); } +bool ReadMiscMemtagMessage(misc_memtag_message* message, std::string* err) { + return ReadMiscPartitionSystemSpace(message, sizeof(*message), + offsetof(misc_system_space_layout, memtag_message), err); +} + +bool WriteMiscMemtagMessage(const misc_memtag_message& message, std::string* err) { + return WriteMiscPartitionSystemSpace(&message, sizeof(message), + offsetof(misc_system_space_layout, memtag_message), err); +} + extern "C" bool write_reboot_bootloader(void) { std::string err; return write_reboot_bootloader(&err); diff --git a/bootloader_message/include/bootloader_message/bootloader_message.h b/bootloader_message/include/bootloader_message/bootloader_message.h index e4cf09b22..0d99273de 100644 --- a/bootloader_message/include/bootloader_message/bootloader_message.h +++ b/bootloader_message/include/bootloader_message/bootloader_message.h @@ -93,18 +93,35 @@ struct misc_virtual_ab_message { uint8_t reserved[57]; } __attribute__((packed)); +struct misc_memtag_message { + uint8_t version; + uint32_t magic; // magic string for treble compat + uint32_t memtag_mode; + uint8_t reserved[55]; +} __attribute__((packed)); + #define MISC_VIRTUAL_AB_MESSAGE_VERSION 2 #define MISC_VIRTUAL_AB_MAGIC_HEADER 0x56740AB0 +#define MISC_MEMTAG_MESSAGE_VERSION 1 +#define MISC_MEMTAG_MAGIC_HEADER 0x5afefe5a +#define MISC_MEMTAG_MODE_MEMTAG 0x1 +#define MISC_MEMTAG_MODE_MEMTAG_ONCE 0x2 +#define MISC_MEMTAG_MODE_MEMTAG_KERNEL 0x4 +#define MISC_MEMTAG_MODE_MEMTAG_KERNEL_ONCE 0x8 + #if (__STDC_VERSION__ >= 201112L) || defined(__cplusplus) static_assert(sizeof(struct misc_virtual_ab_message) == 64, "struct misc_virtual_ab_message has wrong size"); +static_assert(sizeof(struct misc_memtag_message) == 64, + "struct misc_virtual_ab_message has wrong size"); #endif // This struct is not meant to be used directly, rather, it is to make // computation of offsets easier. New fields must be added to the end. struct misc_system_space_layout { misc_virtual_ab_message virtual_ab_message; + misc_memtag_message memtag_message; } __attribute__((packed)); #ifdef __cplusplus @@ -172,6 +189,9 @@ bool write_wipe_package(const std::string& package_data, std::string* err); bool ReadMiscVirtualAbMessage(misc_virtual_ab_message* message, std::string* err); bool WriteMiscVirtualAbMessage(const misc_virtual_ab_message& message, std::string* err); +// Read or write the memtag message from system space in /misc. +bool ReadMiscMemtagMessage(misc_memtag_message* message, std::string* err); +bool WriteMiscMemtagMessage(const misc_memtag_message& message, std::string* err); #else #include <stdbool.h> |