Alan Cox wrote:
+
+ /* generate SMI */
+ asm("outb %b0,%w1" : :
+ "a" (ci_cmd->command_code),
+ "d" (ci_cmd->command_address),
+ "b" (command_buffer_phys_addr),
+ "c" (ci_cmd->signature));
+
Is there a reason this bit is asm not an outb() macro. If its needed in
asm for the SMI behaviour then document that fact so nobody "optimises"
it.
Because it has to load values into %ebx and %ecx for the SMI call. The
macro doesn't allow for that.
--
Brian Gerst
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