From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 30C5C37C106; Fri, 24 Jul 2026 23:08:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784934527; cv=none; b=OV4N3FUQR3uM6HCAvxLYDEUke27GpW6e0MmTjS29PF0lFBJeto/ThQyn73qfFL2gHwDvDDh9ZZwfyhi6/xXmNlbBmnyeAHYVyOxwhZcOdzHamGFdlMM4ME+Qp3kLvSUc79n/MWdy87AJPR7ugw1yXUHKMp+TxDLpOXkmuBv+mbo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784934527; c=relaxed/simple; bh=TnWvimcTlhYF7SSYM1xqPNZuiAubEYLeYk8nISJIKCE=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=tMjPgH2ueJmMoSjkn19/an8OSyeVuoZi4V9FO8rZKjJaeFL15hbzP35w+HmiNlWzaXQ4mZYY5LWo2qwjVgi693cxkUBfwe3sBUHMBU1wEGCjE1ynewr3p51wvI8actqmN2Yqaoxw0Tvx676UMDat9abpNTumYkvJgjz3pC+s8z0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=GmIioJ9+; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="GmIioJ9+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C1F7A1F000E9; Fri, 24 Jul 2026 23:08:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1784934525; bh=I1HMmgzF8qcQPAmOTAXHEHOtC3Y3UHiRKcK48Rnrgts=; h=From:To:Cc:Subject:Date; b=GmIioJ9+i0ijT0320OEcjTOTWhVY419aKtFrcDVlzpDJKOBgO/5IXT/J/nw55BBoO mIOzxs4UkcM3DquaUKIdZ5vW8+kLH4QPGsAtZhvSa/jI9Tqke6t+lGDJ0vg+I13Na6 sGQ7MtWogIp8kOetmNTWgNMBv4IVND6NFl1+LSgG0Rfk3NAdXQ80UaZu+QrkCeffRl HO5bPgWnrcNI3CAvyjYbHFa9YaPiVDfsBjlOrUjcEiALYf1RWT5u0U9jcXZl36Gx+m pCFeRk5kPsv4WOzuU4CO9he4vI6n8jFsJ9pHO1tyEjxBwM4EHuGEjpjwmhCv+yeKYW cz3iKfCmx4yQw== From: wei.liu@kernel.org To: Linux on Hyper-V List , linux-pci@vger.kernel.org Cc: Wei Liu Subject: [PATCH RFC 0/2] Support Hyper-V vPCI controller reset method Date: Fri, 24 Jul 2026 16:08:41 -0700 Message-ID: <20260724230844.3259741-1-wei.liu@kernel.org> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-hyperv@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Wei Liu Hi, On Azure, there are devices that don't support function level or PM reset. They can only be reset by sending a VMBus message to the host. This series is RFC because I modelled the reset method at the controller level. If there is a better way to do it, I'm happy to change the code. Thanks, Wei Wei Liu (2): PCI: Add controller reset method PCI: hv: Add vPCI device reset support Documentation/virt/hyperv/vpci.rst | 2 +- drivers/pci/controller/pci-hyperv.c | 61 +++++++++++++++++++++++++++++ drivers/pci/pci.c | 22 +++++++++++ include/linux/pci.h | 3 +- 4 files changed, 86 insertions(+), 2 deletions(-) -- 2.53.0