Re: [PATCH 1/3] kvm-unit-tests: add x86 port io accessors

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On 02/24/2011 11:48 PM, Anthony Liguori wrote:
Signed-off-by: Anthony Liguori<aliguori@xxxxxxxxxx>

diff --git a/lib/x86/io.h b/lib/x86/io.h
new file mode 100644
index 0000000..bd6341c
--- /dev/null
+++ b/lib/x86/io.h
@@ -0,0 +1,40 @@
+#ifndef IO_H
+#define IO_H
+
+static inline unsigned char inb(unsigned short port)
+{
+    unsigned char value;
+    asm volatile("inb %w1, %0" : "=a" (value) : "Nd" (port));
+    return value;
+}

Are those %[wb] really needed? gcc should do the right thing based on the argument type.

Might as well put all of that into processor.h.

--
error compiling committee.c: too many arguments to function

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