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From: Connor Davis <connojdavis@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Connor Davis <connojdavis@gmail.com>,
	linux-usb@vger.kernel.org, xen-devel@lists.xenproject.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Lee Jones <lee.jones@linaro.org>, Jann Horn <jannh@google.com>,
	Chunfeng Yun <chunfeng.yun@mediatek.com>,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	Juergen Gross <jgross@suse.com>,
	Stefano Stabellini <sstabellini@kernel.org>,
	Mathias Nyman <mathias.nyman@intel.com>
Subject: [PATCH 0/3] Support xen-driven USB3 debug capability
Date: Tue, 11 May 2021 18:18:18 -0600	[thread overview]
Message-ID: <cover.1620776161.git.connojdavis@gmail.com> (raw)

Hi all,

This goal of this series is to allow the USB3 debug capability (DbC) to be
safely used by xen while linux runs as dom0. The first patch prevents
the early DbC driver from using an already-running DbC. The second
exports xen_dbgp_reset_prep and xen_dbgp_external_startup functions when
CONFIG_XEN_DOM0 is enabled so they may be used by the xHCI driver.
The last uses those functions to notify xen of unsafe periods (e.g. reset
and D3hot transition).

Thanks,
Connor

--
Connor Davis (3):
  usb: early: Avoid using DbC if already enabled
  xen: Export dbgp functions when CONFIG_XEN_DOM0 is enabled
  usb: xhci: Notify xen when DbC is unsafe to use

 drivers/usb/early/xhci-dbc.c   | 10 ++++++
 drivers/usb/host/xhci-dbgcap.h |  6 ++++
 drivers/usb/host/xhci.c        | 57 ++++++++++++++++++++++++++++++++++
 drivers/usb/host/xhci.h        |  1 +
 drivers/xen/dbgp.c             |  2 +-
 5 files changed, 75 insertions(+), 1 deletion(-)


base-commit: 88b06399c9c766c283e070b022b5ceafa4f63f19
--
2.31.1



             reply	other threads:[~2021-05-12  0:18 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-12  0:18 Connor Davis [this message]
2021-05-12  0:18 ` [PATCH 1/3] usb: early: Avoid using DbC if already enabled Connor Davis
2021-05-12  0:18 ` [PATCH 2/3] xen: Export dbgp functions when CONFIG_XEN_DOM0 is enabled Connor Davis
2021-05-12  5:41   ` Juergen Gross
2021-05-12 15:01     ` Connor Davis
2021-05-12 13:54   ` Boris Ostrovsky
2021-05-12 14:58     ` Connor Davis
2021-05-12 15:18       ` Boris Ostrovsky
2021-05-12  0:18 ` [PATCH 3/3] usb: xhci: Notify xen when DbC is unsafe to use Connor Davis
2021-05-12  7:03   ` Greg Kroah-Hartman
2021-05-12 14:59     ` Connor Davis

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