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exec/memattrs: Introduce the MemTxAttrs::debug flag

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Extend the MemTxAttrs to include a 'debug' flag. The flag can
be used as general indicator that operation was triggered by
the debugger.

A subsequent patch will set the debug=1 when issuing a memory
access from the gdbstub or HMP commands. This is a prerequisite
to support debugging an encrypted guest. When a request with
debug=1 is seen, the encryption APIs will be used to access the
guest memory.

Yuan Yao:
  - refactor the too long subject line

Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Ashish Kalra <ashish.kalra@amd.com>
Signed-off-by: Yuan Yao <yuan.yao@intel.com>
This commit is contained in:
Brijesh Singh
2021-07-01 09:06:57 +08:00
committed by Nikolay Borisov
parent ee291bd628
commit f62337a763
1 changed files with 2 additions and 0 deletions
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include/exec/memattrs.h
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@@ -57,6 +57,8 @@ typedef struct MemTxAttrs {
unsigned int target_tlb_bit0 : 1;
unsigned int target_tlb_bit1 : 1;
unsigned int target_tlb_bit2 : 1;
/* Memory access request from the debugger */
unsigned int debug:1;
} MemTxAttrs;
/* Bus masters which don't specify any attributes will get this,