From: Manish Jaggi <mjaggi@caviumnetworks.com>
To: xen Devel <xen-devel@lists.xen.org>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
Julien Grall <julien.grall@linaro.org>,
Ian Campbell <Ian.Campbell@citrix.com>,
"Kumar, Vijaya" <Vijaya.Kumar@caviumnetworks.com>,
"Prasun.kapoor@cavium.com" <Prasun.kapoor@cavium.com>
Subject: [PATCH 0/2] Re-factoring passthrough/pci.c and adding place-holder code for ARM/PCI
Date: Mon, 13 Apr 2015 13:07:46 +0530 [thread overview]
Message-ID: <552B724A.8080400@caviumnetworks.com> (raw)
Xen currently does not have PCI support for ARM builds. This patch set
makes the code compilable for ARM PCI and adds places-holder code
which would be replaced with PCI pass-through support patch series.
Re-factor MSI Handling
-------------
There is a some x86 specific code which is found in common code:
xen/drivers/passthrough/pci.c which needs to be re factored.
MSI/X are configured and handled by dom0 or domU code on ARM64 and is not
required to be part of common code. However there are functions which are
used as part of common code and calls to these functions cannot be easily
re factored like pci_cleanup_msi.
xen/drivers/passthrough/<arch>/pci.c files handle these functions.
Add ARM PCI Support
---------------
a) Place holder functions are added for pci_conf_read/write calls.
b) Macros dev_is_pci, pci_to_dev are implemented in
drivers/passthrough/pci/arm code
Manish Jaggi (2):
xen/x86: Patch re-factors MSI/X config code from
drivers/passthrough/pci.c to x86 specific
xen/arm: Make HAS_PCI compilable on ARM by adding place-holder code
xen/arch/arm/Makefile | 1 +
xen/arch/arm/pci.c | 60 ++++++++++++++++++
xen/drivers/passthrough/arm/Makefile | 1 +
xen/drivers/passthrough/arm/pci.c | 88 ++++++++++++++++++++++++++
xen/drivers/passthrough/arm/smmu.c | 1 -
xen/drivers/passthrough/pci.c | 111 +++-----------------------------
xen/drivers/passthrough/x86/Makefile | 1 +
xen/drivers/passthrough/x86/pci.c | 115 ++++++++++++++++++++++++++++++++++
xen/include/asm-arm/device.h | 33 +++++++---
xen/include/asm-arm/domain.h | 3 +
xen/include/asm-arm/pci.h | 7 ++-
xen/include/asm-x86/msi.h | 1 -
xen/include/xen/pci.h | 20 +++++-
13 files changed, 323 insertions(+), 119 deletions(-)
create mode 100644 xen/arch/arm/pci.c
create mode 100644 xen/drivers/passthrough/arm/pci.c
create mode 100644 xen/drivers/passthrough/x86/pci.c
--
1.7.9.5
next reply other threads:[~2015-04-13 7:37 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-13 7:37 Manish Jaggi [this message]
2015-04-13 10:19 ` [PATCH 0/2] Re-factoring passthrough/pci.c and adding place-holder code for ARM/PCI Julien Grall
2015-04-13 10:21 ` Julien Grall
2015-04-14 1:12 ` Jaggi, Manish
2015-04-14 9:34 ` Stefano Stabellini
2015-04-16 15:28 ` Ian Campbell
2015-04-14 9:07 ` Jan Beulich
2015-04-16 15:27 ` Ian Campbell
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