ec3d41c4db
This attempts to implement a "virtual I/O" layer which should allow common drivers to be efficiently used across most virtual I/O mechanisms. It will no-doubt need further enhancement. The virtio drivers add buffers to virtio queues; as the buffers are consumed the driver "interrupt" callbacks are invoked. There is also a generic implementation of config space which drivers can query to get setup information from the host. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Dor Laor <dor.laor@qumranet.com> Cc: Arnd Bergmann <arnd@arndb.de>
14 lines
324 B
C
14 lines
324 B
C
/* Configuration space parsing helpers for virtio.
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*
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* The configuration is [type][len][... len bytes ...] fields.
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*
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* Copyright 2007 Rusty Russell, IBM Corporation.
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* GPL v2 or later.
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*/
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#include <linux/err.h>
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#include <linux/virtio.h>
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#include <linux/virtio_config.h>
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#include <linux/bug.h>
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#include <asm/system.h>
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