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| author | Zhao Liu <zhao1.liu@intel.com> | 2025-01-21 23:13:22 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2025-01-23 11:50:53 +0100 |
| commit | 57f9d9c84a9112d534fa90f2a6dad74bd71150b6 (patch) | |
| tree | 0f170e35539dbe0a99f6502a32ec247884dda4a2 | |
| parent | 5014e33b1e00d330f13df33c09a3932ac88f8d94 (diff) | |
| download | focaccia-qemu-57f9d9c84a9112d534fa90f2a6dad74bd71150b6.tar.gz focaccia-qemu-57f9d9c84a9112d534fa90f2a6dad74bd71150b6.zip | |
memattrs: Check the size of MemTxAttrs
Make sure MemTxAttrs is packed into 8 bytes and does not exceed 8 bytes. Suggested-by: Philippe Mathieu-Daudà <philmd@linaro.org> Signed-off-by: Zhao Liu <zhao1.liu@intel.com> Link: https://lore.kernel.org/r/20250121151322.171832-3-zhao1.liu@intel.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | include/exec/memattrs.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/exec/memattrs.h b/include/exec/memattrs.h index 4fde4eee84..060b7e7131 100644 --- a/include/exec/memattrs.h +++ b/include/exec/memattrs.h @@ -64,6 +64,8 @@ typedef struct MemTxAttrs { uint16_t _reserved2; } MemTxAttrs; +QEMU_BUILD_BUG_ON(sizeof(MemTxAttrs) > 8); + /* Bus masters which don't specify any attributes will get this, * which has all attribute bits clear except the topmost one * (so that we can distinguish "all attributes deliberately clear" |