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linux/drivers/hv
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Boqun Feng 8a7eb2d476 Drivers: hv: balloon: Use VMBUS_RING_SIZE() wrapper for dm_ring_size 
Baihua reported an error when boot an ARM64 guest with PAGE_SIZE=64k and
BALLOON is enabled:

	hv_vmbus: registering driver hv_balloon
	hv_vmbus: probe failed for device 1eccfd72-4b41-45ef-b73a-4a6e44c12924 (-22)

The cause of this is that the ringbuffer size for hv_balloon is not
adjusted with VMBUS_RING_SIZE(), which makes the size not large enough
for ringbuffers on guest with PAGE_SIZE=64k. Therefore use
VMBUS_RING_SIZE() to calculate the ringbuffer size. Note that the old
size (20 * 1024) counts a 4k header in the total size, while
VMBUS_RING_SIZE() expects the parameter as the payload size, so use
16 * 1024.

Cc: <stable@vger.kernel.org> # 5.15.x
Reported-by: Baihua Lu <baihua.lu@microsoft.com>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Tested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Link: https://lore.kernel.org/r/20211101150026.736124-1-boqun.feng@gmail.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
2021-11-15 12:35:56 +00:00
..
channel_mgmt.c Drivers: hv: vmbus: Remove unused code to check for subchannels 2021-10-28 11:26:40 +00:00
channel.c Drivers: hv: vmbus: Initialize VMbus ring buffer for Isolation VM 2021-10-28 11:26:36 +00:00
connection.c Drivers: hv: vmbus: Add SNP support for VMbus channel initiate message 2021-10-28 11:22:55 +00:00
hv_balloon.c Drivers: hv: balloon: Use VMBUS_RING_SIZE() wrapper for dm_ring_size 2021-11-15 12:35:56 +00:00
hv_common.c x86/hyperv: Add ghcb hvcall support for SNP VM 2021-10-28 11:22:49 +00:00
hv_debugfs.c hv_debugfs: Make hv_debug_root static 2020-04-04 17:47:43 +01:00
hv_fcopy.c Drivers: hv: vmbus: Copy packets sent by Hyper-V out of the ring buffer 2021-05-14 17:37:46 +00:00
hv_kvp.c Drivers: hv: vmbus: Copy packets sent by Hyper-V out of the ring buffer 2021-05-14 17:37:46 +00:00
hv_snapshot.c hv_utils: Set the maximum packet size for VSS driver to the length of the receive buffer 2021-08-25 19:03:20 +00:00
hv_trace_balloon.h hv_balloon: trace post_status 2018-03-06 09:57:17 -08:00
hv_trace.c hv: add SPDX license to trace 2018-03-28 13:24:56 +02:00
hv_trace.h Drivers: hv: vmbus: Drivers: hv: vmbus: Introduce CHANNELMSG_MODIFYCHANNEL_RESPONSE 2021-04-18 13:03:11 +00:00
hv_util.c drivers: hv: Decouple Hyper-V clock/timer code from VMbus drivers 2021-07-19 09:24:28 +00:00
hv_utils_transport.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 280 2019-06-05 17:36:36 +02:00
hv_utils_transport.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 280 2019-06-05 17:36:36 +02:00
hv.c x86/hyperv: Add ghcb hvcall support for SNP VM 2021-10-28 11:22:49 +00:00
hyperv_vmbus.h hyperv-next for 5.16 2021-11-02 10:56:49 -07:00
Kconfig Drivers: hv: vmbus: Initialize VMbus ring buffer for Isolation VM 2021-10-28 11:26:36 +00:00
Makefile Drivers: hv: Move Hyper-V extended capability check to arch neutral code 2021-06-05 10:22:34 +00:00
ring_buffer.c Drivers: hv : vmbus: Adding NULL pointer check 2021-10-28 11:40:32 +00:00
vmbus_drv.c bus: Make remove callback return void 2021-07-21 11:53:42 +02:00