[PATCH 0/2] Fix uio_hv_generic on 64k page systems

From: longli
Date: Thu Apr 17 2025 - 20:43:29 EST


From: Long Li <longli@xxxxxxxxxxxxx>

UIO framework requires the device memory aligned to page boundary.
Hyper-V may allocate some memory that is Hyper-V page aligned (4k)
but not system page aligned.

Fix this by having Hyper-V always allocate those pages on system page
boundary and expose them to user-mode.

Long Li (2):
Drivers: hv: Allocate interrupt and monitor pages aligned to system
page boundary
uio_hv_generic: Use correct size for interrupt and monitor pages

drivers/hv/hv_common.c | 29 +++++++----------------------
drivers/uio/uio_hv_generic.c | 4 ++--
2 files changed, 9 insertions(+), 24 deletions(-)

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2.34.1