On 04/01/2011 05:10 PM, Joerg Roedel wrote:
This patch adds a check_perm callback for each opcode into
the instruction emulator. This will be used to do all
necessary permission checks on instructions before checking
whether they are intercepted or not.
@@ -216,6 +216,7 @@ struct decode_cache {
u8 seg_override;
unsigned int d;
int (*execute)(struct x86_emulate_ctxt *ctxt);
+ int (*check_perm)(struct x86_emulate_ctxt *ctxt);
I originally mean to use a group-like structure to have check_perm only
when needed, but I guess this is a premature optimization. #define D(_y)
{ .flags = (_y) }
#define DI(_y, _i) { .flags = (_y), .intercept = x86_intercept_##_i }
+#define DIP(_y, _i) { .flags = (_y), .intercept = x86_intercept_##_i, \
+ .check_perm = em_check_perm_##_i }
Sorry, this (and all the #defines which follow) are just obfuscating. I
set a bad example here, but the following patches show there is nothing
gained by the ## games. Please use the full function name.
--
error compiling committee.c: too many arguments to function
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