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From: Shanker Donthineni <shankerd@codeaurora.org>
To: xen-devel <xen-devel@lists.xensource.com>,
	Julien Grall <julien.grall@arm.com>,
	Stefano Stabellini <sstabellini@kernel.org>
Cc: Philip Elcan <pelcan@codeaurora.org>,
	Wei Liu <wei.liu2@citrix.com>,
	Vikram Sethi <vikrams@codeaurora.org>,
	George Dunlap <George.Dunlap@eu.citrix.com>,
	Andrew Cooper <andrew.cooper3@citrix.com>,
	Ian Jackson <ian.jackson@eu.citrix.com>, Tim Deegan <tim@xen.org>,
	Jan Beulich <jbeulich@suse.com>,
	Shanker Donthineni <shankerd@codeaurora.org>
Subject: [PATCH V3 0/4] Change fixed mmio handlers to a variable number
Date: Wed, 20 Jul 2016 09:00:52 -0500	[thread overview]
Message-ID: <1469023256-6487-1-git-send-email-shankerd@codeaurora.org> (raw)

The maximum number of mmio handlers that are allowed is limited to
a macro MAX_IO_HANDLER(16), which is not enough for supporting per CPU
Redistributor regions. We need at least MAX_IO_HANDLER+CONFIG_NR_CPUS
mmio handlers in order to support ACPI based XEN boot.

This patchset uses the dynamic allocation strategy to allocate memory
resource dynamically depends on the number of Redistributor regions
that are described in the APCI MADT table.

Shanker Donthineni (4):
  arm/io: Use separate memory allocation for mmio handlers
  xen: Add generic implementation of binary search
  xen/arm: io: Use binary search for mmio handler lookup
  arm/vgic: Change fixed number of mmio handlers to variable number

 xen/arch/arm/domain.c      | 12 +++++++----
 xen/arch/arm/io.c          | 52 +++++++++++++++++++++++++++++++---------------
 xen/arch/arm/vgic-v2.c     |  3 ++-
 xen/arch/arm/vgic-v3.c     |  5 ++++-
 xen/arch/arm/vgic.c        | 10 +++------
 xen/common/Makefile        |  1 +
 xen/common/bsearch.c       | 51 +++++++++++++++++++++++++++++++++++++++++++++
 xen/include/asm-arm/mmio.h |  7 +++++--
 xen/include/asm-arm/vgic.h |  5 +++--
 xen/include/xen/lib.h      |  3 +++
 10 files changed, 115 insertions(+), 34 deletions(-)
 create mode 100644 xen/common/bsearch.c

-- 
Qualcomm Datacenter Technologies, Inc. on behalf of the Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.


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             reply	other threads:[~2016-07-20 14:00 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-20 14:00 Shanker Donthineni [this message]
2016-07-20 14:00 ` [PATCH V3 1/4] arm/io: Use separate memory allocation for mmio handlers Shanker Donthineni
2016-07-20 14:00 ` [PATCH V3 2/4] xen: Add generic implementation of binary search Shanker Donthineni
2016-08-01 12:46   ` Jan Beulich
2016-08-01 12:49     ` Andrew Cooper
2016-07-20 14:00 ` [PATCH V3 3/4] xen/arm: io: Use binary search for mmio handler lookup Shanker Donthineni
2016-07-26 21:02   ` Julien Grall
2016-07-20 14:00 ` [PATCH V3 4/4] arm/vgic: Change fixed number of mmio handlers to variable number Shanker Donthineni
2016-07-26 21:02   ` Julien Grall
2016-07-26 22:16 ` [PATCH V3 0/4] Change fixed mmio handlers to a " Stefano Stabellini
  -- strict thread matches above, loose matches on Subject: below --
2016-07-20 13:53 Shanker Donthineni
2016-07-20 13:53 ` Shanker Donthineni
2016-07-20 13:59 ` Shanker Donthineni
2016-07-20 13:59   ` Shanker Donthineni

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