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Merge "trusty: Update TIPC UAPI header"

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Treehugger Robot 2022-03-15 18:32:38 +00:00 • committed by Gerrit Code Review
commit 00e57e0841
1 changed files with 14 additions and 9 deletions
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23
trusty/libtrusty/include/trusty/ipc.h
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@ -23,15 +23,19 @@
/**
* enum transfer_kind - How to send an fd to Trusty
* @TRUSTY_SHARE: Memory will be accessible by Linux and Trusty. On ARM it will
* be mapped as nonsecure. Suitable for shared memory. The paired
* fd must be a "memfd".
* @TRUSTY_LEND: Memory will be accessible only to Trusty. On ARM it will be
* transitioned to "Secure" memory if Trusty is in TrustZone.
* This transfer kind is suitable for donating video buffers or
* other similar resources. The paired fd may need to come from a
* platform-specific allocator for memory that may be
* transitioned to "Secure".
* @TRUSTY_SHARE: Memory will be accessible by Linux and Trusty. On ARM it
* will be mapped as nonsecure. Suitable for shared memory.
* The paired fd must be a "dma_buf".
* @TRUSTY_LEND: Memory will be accessible only to Trusty. On ARM it will
* be transitioned to "Secure" memory if Trusty is in
* TrustZone. This transfer kind is suitable for donating
* video buffers or other similar resources. The paired fd
* may need to come from a platform-specific allocator for
* memory that may be transitioned to "Secure".
* @TRUSTY_SEND_SECURE: Send memory that is already "Secure". Memory will be
* accessible only to Trusty. The paired fd may need to
* come from a platform-specific allocator that returns
* "Secure" buffers.
*
* Describes how the user would like the resource in question to be sent to
* Trusty. Options may be valid only for certain kinds of fds.
@ -39,6 +43,7 @@
enum transfer_kind {
TRUSTY_SHARE = 0,
TRUSTY_LEND = 1,
TRUSTY_SEND_SECURE = 2,
};
/**