From: Shanker Donthineni <shankerd@codeaurora.org>
To: xen-devel <xen-devel@lists.xensource.com>
Cc: Philip Elcan <pelcan@codeaurora.org>,
Julien Grall <julien.grall@arm.com>,
Stefano Stabellini <sstabellini@kernel.org>,
Shanker Donthineni <shankerd@codeaurora.org>,
Vikram Sethi <vikrams@codeaurora.org>
Subject: [PATCH 0/4] Change fixed mmio handlers to a variable number
Date: Fri, 15 Jul 2016 10:25:46 -0500 [thread overview]
Message-ID: <1468596347-26430-1-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 | 53 +++++++++++++++++++++++++++++++---------------
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/bsearch.h | 9 ++++++++
10 files changed, 122 insertions(+), 34 deletions(-)
create mode 100644 xen/common/bsearch.c
create mode 100644 xen/include/xen/bsearch.h
--
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.
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
https://lists.xen.org/xen-devel
next reply other threads:[~2016-07-15 15:25 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-15 15:25 Shanker Donthineni [this message]
2016-07-15 15:25 ` [PATCH 1/4] arm/io: Use separate memory allocation for mmio handlers Shanker Donthineni
2016-07-15 15:32 ` [PATCH 0/4] Change fixed mmio handlers to a variable number Julien Grall
2016-07-15 15:48 ` Shanker Donthineni
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1468596347-26430-1-git-send-email-shankerd@codeaurora.org \
--to=shankerd@codeaurora.org \
--cc=julien.grall@arm.com \
--cc=pelcan@codeaurora.org \
--cc=sstabellini@kernel.org \
--cc=vikrams@codeaurora.org \
--cc=xen-devel@lists.xensource.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).