Displaying 16 results from an estimated 16 matches for "usable_region_size".
2020 Aug 05
1
[PATCH v3 35/38] virtio_mem: convert to LE accessors
...ns(-)
diff --git a/drivers/virtio/virtio_mem.c b/drivers/virtio/virtio_mem.c
index f26f5f64ae82..c08512fcea90 100644
--- a/drivers/virtio/virtio_mem.c
+++ b/drivers/virtio/virtio_mem.c
@@ -1530,21 +1530,21 @@ static void virtio_mem_refresh_config(struct virtio_mem *vm)
uint64_t new_plugged_size, usable_region_size, end_addr;
/* the plugged_size is just a reflection of what _we_ did previously */
- virtio_cread(vm->vdev, struct virtio_mem_config, plugged_size,
- &new_plugged_size);
+ virtio_cread_le(vm->vdev, struct virtio_mem_config, plugged_size,
+ &new_plugged_size);
if (WARN_ON...
2020 Aug 03
0
[PATCH v2 13/24] virtio_mem: correct tags for config space fields
...__u64 addr;
+ __le64 addr;
/* Region size (maximum). Cannot change. */
- __u64 region_size;
+ __le64 region_size;
/*
* Currently usable region size. Can grow up to region_size. Can
* shrink due to VIRTIO_MEM_REQ_UNPLUG_ALL (in which case no config
* update will be sent).
*/
- __u64 usable_region_size;
+ __le64 usable_region_size;
/*
* Currently used size. Changes due to plug/unplug requests, but no
* config updates will be sent.
*/
- __u64 plugged_size;
+ __le64 plugged_size;
/* Requested size. New plug requests cannot exceed it. Can change. */
- __u64 requested_size;
+ __le64 requ...
2020 Aug 05
0
[PATCH v3 13/38] virtio_mem: correct tags for config space fields
...__u64 addr;
+ __le64 addr;
/* Region size (maximum). Cannot change. */
- __u64 region_size;
+ __le64 region_size;
/*
* Currently usable region size. Can grow up to region_size. Can
* shrink due to VIRTIO_MEM_REQ_UNPLUG_ALL (in which case no config
* update will be sent).
*/
- __u64 usable_region_size;
+ __le64 usable_region_size;
/*
* Currently used size. Changes due to plug/unplug requests, but no
* config updates will be sent.
*/
- __u64 plugged_size;
+ __le64 plugged_size;
/* Requested size. New plug requests cannot exceed it. Can change. */
- __u64 requested_size;
+ __le64 requ...
2020 Mar 02
0
[PATCH v1 02/11] virtio-mem: Paravirtualized memory hotplug
...mb_set_state(vm, mb_id, VIRTIO_MEM_MB_STATE_UNUSED);
+ }
+
+ return 0;
+}
+
+/*
+ * Update all parts of the config that could have changed.
+ */
+static void virtio_mem_refresh_config(struct virtio_mem *vm)
+{
+ const uint64_t phys_limit = 1UL << MAX_PHYSMEM_BITS;
+ uint64_t new_plugged_size, usable_region_size, end_addr;
+
+ /* the plugged_size is just a reflection of what _we_ did previously */
+ virtio_cread(vm->vdev, struct virtio_mem_config, plugged_size,
+ &new_plugged_size);
+ if (WARN_ON_ONCE(new_plugged_size != vm->plugged_size))
+ vm->plugged_size = new_plugged_size;
+
+ /* c...
2020 Mar 03
1
[PATCH v1 02/11] virtio-mem: Paravirtualized memory hotplug
...190:2: error: unknown type name 'uint64_t'
uint64_t addr;
^
./usr/include/linux/virtio_mem.h:192:2: error: unknown type name 'uint64_t'
uint64_t region_size;
^
./usr/include/linux/virtio_mem.h:198:2: error: unknown type name 'uint64_t'
uint64_t usable_region_size;
^
./usr/include/linux/virtio_mem.h:203:2: error: unknown type name 'uint64_t'
uint64_t plugged_size;
^
./usr/include/linux/virtio_mem.h:205:2: error: unknown type name 'uint64_t'
uint64_t requested_size;
^
---
0-DAY CI Kernel Test Service, Intel Corp...
2020 May 07
17
[PATCH v4 00/15] virtio-mem: paravirtualized memory
This series is based on v5.7-rc4. The patches are located at:
https://github.com/davidhildenbrand/linux.git virtio-mem-v4
This is basically a resend of v3 [1], now based on v5.7-rc4 and restested.
One patch was reshuffled and two ACKs I missed to add were added. The
rebase did not require any modifications to patches.
Details about virtio-mem can be found in the cover letter of v2 [2]. A
2020 May 07
20
[PATCH v3 00/15] virtio-mem: paravirtualized memory
This series is based on latest linux-next. The patches are located at:
https://github.com/davidhildenbrand/linux.git virtio-mem-v3
Patch #1 - #10 where contained in v2 and only contain minor modifications
(mostly smaller fixes). The remaining patches are new and contain smaller
optimizations.
Details about virtio-mem can be found in the cover letter of v2 [1]. A
basic QEMU implementation was
2020 May 07
20
[PATCH v3 00/15] virtio-mem: paravirtualized memory
This series is based on latest linux-next. The patches are located at:
https://github.com/davidhildenbrand/linux.git virtio-mem-v3
Patch #1 - #10 where contained in v2 and only contain minor modifications
(mostly smaller fixes). The remaining patches are new and contain smaller
optimizations.
Details about virtio-mem can be found in the cover letter of v2 [1]. A
basic QEMU implementation was
2020 Mar 11
12
[PATCH v2 00/10] virtio-mem: paravirtualized memory
...tly plugged. "requested_size" corresponds to a request
from the device to the device driver to (un)plug blocks. The
device driver should try to (un)plug blocks in order to reach the
"requested_size". It is impossible to plug more memory than requested.
The "usable_region_size" represents the memory region that can actually
be used to (un)plug memory. It is always at least as big as the
"requested_size" and will grow dynamically. It will only shrink when
explicitly triggered (VIRTIO_MEM_REQ_UNPLUG).
There are no guarantees what will happen...
2020 Mar 02
20
[PATCH v1 00/11] virtio-mem: paravirtualized memory
...tly plugged. "requested_size" corresponds to a request
from the device to the device driver to (un)plug blocks. The
device driver should try to (un)plug blocks in order to reach the
"requested_size". It is impossible to plug more memory than requested.
The "usable_region_size" represents the memory region that can actually
be used to (un)plug memory. It is always at least as big as the
"requested_size" and will grow dynamically. It will only shrink when
explicitly triggered (VIRTIO_MEM_REQ_UNPLUG).
There are no guarantees what will happen...
2020 Mar 02
20
[PATCH v1 00/11] virtio-mem: paravirtualized memory
...tly plugged. "requested_size" corresponds to a request
from the device to the device driver to (un)plug blocks. The
device driver should try to (un)plug blocks in order to reach the
"requested_size". It is impossible to plug more memory than requested.
The "usable_region_size" represents the memory region that can actually
be used to (un)plug memory. It is always at least as big as the
"requested_size" and will grow dynamically. It will only shrink when
explicitly triggered (VIRTIO_MEM_REQ_UNPLUG).
There are no guarantees what will happen...
2019 Sep 19
14
[PATCH RFC v3 0/9] virtio-mem: paravirtualized memory
...s currently plugged. "requested_size" corresponds to a request
from the device to the device driver to (un)plug blocks. The
device driver should try to (un)plug blocks in order to reach the
"requested_size". It is impossible to plug more memory than requested.
The "usable_region_size" represents the memory region that can actually
be used to (un)plug memory. It is always at least as big as the
"requested_size" and will grow dynamically. It will only shrink when
explicitly triggered (VIRTIO_MEM_REQ_UNPLUG).
Memory in the usable region can usually be read,...
2019 Dec 12
19
[PATCH RFC v4 00/13] virtio-mem: paravirtualized memory
...s currently plugged. "requested_size" corresponds to a request
from the device to the device driver to (un)plug blocks. The
device driver should try to (un)plug blocks in order to reach the
"requested_size". It is impossible to plug more memory than requested.
The "usable_region_size" represents the memory region that can actually
be used to (un)plug memory. It is always at least as big as the
"requested_size" and will grow dynamically. It will only shrink when
explicitly triggered (VIRTIO_MEM_REQ_UNPLUG).
Memory in the usable region can usually be read,...
2019 Dec 12
19
[PATCH RFC v4 00/13] virtio-mem: paravirtualized memory
...s currently plugged. "requested_size" corresponds to a request
from the device to the device driver to (un)plug blocks. The
device driver should try to (un)plug blocks in order to reach the
"requested_size". It is impossible to plug more memory than requested.
The "usable_region_size" represents the memory region that can actually
be used to (un)plug memory. It is always at least as big as the
"requested_size" and will grow dynamically. It will only shrink when
explicitly triggered (VIRTIO_MEM_REQ_UNPLUG).
Memory in the usable region can usually be read,...
2020 Aug 03
51
[PATCH v2 00/24] virtio: config space endian-ness cleanup
Config space endian-ness is currently a mess: fields are
not tagged with the correct endian-ness so it's easy
to make mistakes like instanciating config space in
native endian-ness.
The following patches adding sparse tagging are currently in my tree.
Lightly tested.
As a follow-up, I plan to add new APIs that handle modern config space
in a more efficient way (bypassing the version check).
2020 Mar 02
0
[PATCH v1 00/11] virtio-mem: paravirtualized memory
...ted_size" corresponds to a request
> from the device to the device driver to (un)plug blocks. The
> device driver should try to (un)plug blocks in order to reach the
> "requested_size". It is impossible to plug more memory than requested.
>
> The "usable_region_size" represents the memory region that can actually
> be used to (un)plug memory. It is always at least as big as the
> "requested_size" and will grow dynamically. It will only shrink when
> explicitly triggered (VIRTIO_MEM_REQ_UNPLUG).
>
> There are no gu...