linux-kernel - [PATCH 0/3] mshv: Debugfs interface for mshv

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Message-Id: <1764784405-4484-1-git-send-email-nunodasneves@linux.microsoft.com>
Date: Wed,  3 Dec 2025 09:53:22 -0800
From: Nuno Das Neves <nunodasneves@...ux.microsoft.com>
To: linux-hyperv@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: kys@...rosoft.com,
	haiyangz@...rosoft.com,
	wei.liu@...nel.org,
	decui@...rosoft.com,
	longli@...rosoft.com,
	mhklinux@...look.com,
	skinsburskii@...ux.microsoft.com,
	prapal@...ux.microsoft.com,
	mrathor@...ux.microsoft.com,
	paekkaladevi@...ux.microsoft.com,
	Nuno Das Neves <nunodasneves@...ux.microsoft.com>
Subject: [PATCH 0/3] mshv: Debugfs interface for mshv_root

Expose hypervisor, logical processor, partition, and virtual processor
statistics via debugfs. These are provided by mapping 'stats' pages via
hypercall.

Patch #1: Update hv_call_map_stats_page() to return success when
          HV_STATS_AREA_PARENT is unavailable, which is the case on some
          hypervisor versions, where it can fall back to HV_STATS_AREA_SELF
Patch #2: Introduce the definitions needed for the various stats pages
Patch #3: Add mshv_debugfs.c, and integrate it with the mshv_root driver to
          expose the partition and VP stats.

Nuno Das Neves (2):
  mshv: Add definitions for stats pages
  mshv: Add debugfs to view hypervisor statistics

Purna Pavan Chandra Aekkaladevi (1):
  mshv: Ignore second stats page map result failure

 drivers/hv/Makefile            |    1 +
 drivers/hv/mshv_debugfs.c      | 1122 ++++++++++++++++++++++++++++++++
 drivers/hv/mshv_root.h         |   34 +
 drivers/hv/mshv_root_hv_call.c |   43 +-
 drivers/hv/mshv_root_main.c    |   52 +-
 include/hyperv/hvhdk.h         |  437 +++++++++++++
 6 files changed, 1664 insertions(+), 25 deletions(-)
 create mode 100644 drivers/hv/mshv_debugfs.c

-- 
2.34.1