From: longli@linuxonhyperv.com
To: "K. Y. Srinivasan" <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Wei Liu <wei.liu@kernel.org>, Dexuan Cui <decui@microsoft.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Long Li <longli@microsoft.com>
Subject: [PATCH 0/2] Fix uio_hv_generic on 64k page systems
Date: Thu, 17 Apr 2025 17:43:15 -0700 [thread overview]
Message-ID: <1744936997-7844-1-git-send-email-longli@linuxonhyperv.com> (raw)
From: Long Li <longli@microsoft.com>
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(-)
--
2.34.1
next reply other threads:[~2025-04-18 0:43 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-18 0:43 longli [this message]
2025-04-18 0:43 ` [PATCH 1/2] Drivers: hv: Allocate interrupt and monitor pages aligned to system page boundary longli
2025-04-20 23:57 ` Michael Kelley
2025-04-23 18:39 ` Long Li
2025-04-23 20:14 ` Michael Kelley
2025-04-18 0:43 ` [PATCH 2/2] uio_hv_generic: Use correct size for interrupt and monitor pages longli
2025-04-20 23:58 ` Michael Kelley
2025-04-23 18:49 ` Long Li
2025-04-23 20:07 ` Michael Kelley
2025-04-20 23:57 ` [PATCH 0/2] Fix uio_hv_generic on 64k page systems Michael Kelley
2025-04-23 18:30 ` Long Li
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