mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-01 13:46:42 +07:00
1b4aa2faec
Make the balloon interface always use 4K pages, and convert Linux pfns if necessary. This patch assumes that Linux's PAGE_SHIFT will never be less than 12. Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (modified)
24 lines
688 B
C
24 lines
688 B
C
#ifndef _LINUX_VIRTIO_BALLOON_H
|
|
#define _LINUX_VIRTIO_BALLOON_H
|
|
/* This header is BSD licensed so anyone can use the definitions to implement
|
|
* compatible drivers/servers. */
|
|
#include <linux/virtio_config.h>
|
|
|
|
/* The ID for virtio_balloon */
|
|
#define VIRTIO_ID_BALLOON 5
|
|
|
|
/* The feature bitmap for virtio balloon */
|
|
#define VIRTIO_BALLOON_F_MUST_TELL_HOST 0 /* Tell before reclaiming pages */
|
|
|
|
/* Size of a PFN in the balloon interface. */
|
|
#define VIRTIO_BALLOON_PFN_SHIFT 12
|
|
|
|
struct virtio_balloon_config
|
|
{
|
|
/* Number of pages host wants Guest to give up. */
|
|
__le32 num_pages;
|
|
/* Number of pages we've actually got in balloon. */
|
|
__le32 actual;
|
|
};
|
|
#endif /* _LINUX_VIRTIO_BALLOON_H */
|