Thread (27 messages) 27 messages, 4 authors, 2020-09-14

RE: [PATCH v3 07/11] hv_netvsc: Use HV_HYP_PAGE_SIZE for Hyper-V communication

From: Michael Kelley <hidden>
Date: 2020-09-12 19:36:26
Also in: linux-arm-kernel, linux-hyperv, linux-input, linux-scsi, lkml

From: Boqun Feng <redacted> Sent: Thursday, September 10, 2020 7:35 AM
When communicating with Hyper-V, HV_HYP_PAGE_SIZE should be used since
that's the page size used by Hyper-V and Hyper-V expects all
page-related data using the unit of HY_HYP_PAGE_SIZE, for example, the
"pfn" in hv_page_buffer is actually the HV_HYP_PAGE (i.e. the Hyper-V
page) number.

In order to support guest whose page size is not 4k, we need to make
hv_netvsc always use HV_HYP_PAGE_SIZE for Hyper-V communication.

Signed-off-by: Boqun Feng <redacted>
---
 drivers/net/hyperv/netvsc.c       |  2 +-
 drivers/net/hyperv/netvsc_drv.c   | 46 +++++++++++++++----------------
 drivers/net/hyperv/rndis_filter.c | 13 ++++-----
 3 files changed, 30 insertions(+), 31 deletions(-)
Reviewed-by: Michael Kelley <redacted>
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