40 lines
1.5 KiB
Diff
40 lines
1.5 KiB
Diff
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From 8e76b032dc33ce4330da6ec73c10113cdc172b25 Mon Sep 17 00:00:00 2001
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From: Brijesh Singh <brijesh.singh@amd.com>
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Date: Tue, 6 Feb 2018 19:08:07 -0600
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Subject: [PATCH] memattrs: add debug attribute
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Extend the MemTxAttrs to include 'debug' flag. The flag can be used as
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general indicator that operation was triggered by the debugger.
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Later in the patch series we set the debug=1 when issuing a memory access
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from the gdbstub or HMP commands. This patch is prerequisite to support
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debugging the encrypted guest. If we see request with debug=1 then we
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will need to use encryption APIs to access the guest memory.
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Cc: Alistair Francis <alistair.francis@xilinx.com>
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Cc: Peter Maydell <peter.maydell@linaro.org>
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Cc: Edgar E. Iglesias" <edgar.iglesias@xilinx.com>
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Cc: Richard Henderson <richard.henderson@linaro.org>
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Cc: Paolo Bonzini <pbonzini@redhat.com>
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Reviewed-by: Edgar E. Iglesias" <edgar.iglesias@xilinx.com>
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Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
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[BR: FATE#322124]
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Signed-off-by: Bruce Rogers <brogers@suse.com>
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---
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include/exec/memattrs.h | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/include/exec/memattrs.h b/include/exec/memattrs.h
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index d4a1642098..08099e4f7e 100644
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--- a/include/exec/memattrs.h
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+++ b/include/exec/memattrs.h
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@@ -37,6 +37,8 @@ typedef struct MemTxAttrs {
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unsigned int user:1;
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/* Requester ID (for MSI for example) */
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unsigned int requester_id:16;
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+ /* Memory access request from the debugger */
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+ unsigned int debug:1;
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} MemTxAttrs;
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/* Bus masters which don't specify any attributes will get this,
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