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| author | David Hildenbrand <david@redhat.com> | 2020-06-26 09:22:30 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-07-02 05:54:59 -0400 |
| commit | aff92b828647839b956dfa647a18b3ce10058e6a (patch) | |
| tree | 8258eed22deaefcc476f91ec07775a5b305e0f47 /include/hw/vfio/vfio-common.h | |
| parent | d24f31db3bcb46b09d8717850112d6a1bbee78f2 (diff) | |
| download | qemu-aff92b828647839b956dfa647a18b3ce10058e6a.zip qemu-aff92b828647839b956dfa647a18b3ce10058e6a.tar.gz qemu-aff92b828647839b956dfa647a18b3ce10058e6a.tar.bz2 | |
vfio: Convert to ram_block_discard_disable()
VFIO is (except devices without a physical IOMMU or some mediated devices)
incompatible with discarding of RAM. The kernel will pin basically all VM
memory. Let's convert to ram_block_discard_disable(), which can now
fail, in contrast to qemu_balloon_inhibit().
Leave "x-balloon-allowed" named as it is for now.
Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Cc: Cornelia Huck <cohuck@redhat.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Tony Krowiak <akrowiak@linux.ibm.com>
Cc: Halil Pasic <pasic@linux.ibm.com>
Cc: Pierre Morel <pmorel@linux.ibm.com>
Cc: Eric Farman <farman@linux.ibm.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20200626072248.78761-4-david@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/hw/vfio/vfio-common.h')
| -rw-r--r-- | include/hw/vfio/vfio-common.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h index fd56420..c78f3ff 100644 --- a/include/hw/vfio/vfio-common.h +++ b/include/hw/vfio/vfio-common.h @@ -108,7 +108,7 @@ typedef struct VFIODevice { bool reset_works; bool needs_reset; bool no_mmap; - bool balloon_allowed; + bool ram_block_discard_allowed; VFIODeviceOps *ops; unsigned int num_irqs; unsigned int num_regions; @@ -128,7 +128,7 @@ typedef struct VFIOGroup { QLIST_HEAD(, VFIODevice) device_list; QLIST_ENTRY(VFIOGroup) next; QLIST_ENTRY(VFIOGroup) container_next; - bool balloon_allowed; + bool ram_block_discard_allowed; } VFIOGroup; typedef struct VFIODMABuf { |