From: Peter Xu <peterx@redhat.com>
To: kvm@vger.kernel.org
Cc: drjones@redhat.com, agordeev@redhat.com, jan.kiszka@web.de,
rkrcmar@redhat.com, pbonzini@redhat.com, peterx@redhat.com
Subject: [PATCH v3 04/13] libcflat: add IS_ALIGNED() macro, and page sizes
Date: Mon, 14 Nov 2016 17:28:02 -0500 [thread overview]
Message-ID: <1479162491-20764-5-git-send-email-peterx@redhat.com> (raw)
In-Reply-To: <1479162491-20764-1-git-send-email-peterx@redhat.com>
These macros will be useful to do page alignment checks.
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
---
lib/libcflat.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/lib/libcflat.h b/lib/libcflat.h
index 038ea1d..d0b0fd1 100644
--- a/lib/libcflat.h
+++ b/lib/libcflat.h
@@ -33,6 +33,12 @@
#define __ALIGN_MASK(x, mask) (((x) + (mask)) & ~(mask))
#define __ALIGN(x, a) __ALIGN_MASK(x, (typeof(x))(a) - 1)
#define ALIGN(x, a) __ALIGN((x), (a))
+#define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0)
+
+#define SZ_4K 0x1000
+#define SZ_64K 0x10000
+#define SZ_2M 0x200000
+#define SZ_1G 0x40000000
typedef uint8_t u8;
typedef int8_t s8;
--
2.7.4
next prev parent reply other threads:[~2016-11-14 22:28 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-14 22:27 [PATCH v3 00/13] VT-d unit test Peter Xu
2016-11-14 22:27 ` [PATCH v3 01/13] x86/asm: add cpu_relax() Peter Xu
2016-11-14 22:28 ` [PATCH v3 02/13] libcflat: introduce is_power_of_2() Peter Xu
2016-11-14 22:28 ` [PATCH v3 03/13] x86: intel-iommu: add vt-d init test Peter Xu
2016-11-15 8:41 ` Andrew Jones
2016-11-14 22:28 ` Peter Xu [this message]
2016-11-15 8:43 ` [PATCH v3 04/13] libcflat: add IS_ALIGNED() macro, and page sizes Andrew Jones
2016-11-15 16:26 ` Peter Xu
2016-11-14 22:28 ` [PATCH v3 05/13] libcflat: moving MIN/MAX here Peter Xu
2016-11-14 22:28 ` [PATCH v3 06/13] vm/page: provide PGDIR_OFFSET() macro Peter Xu
2016-11-14 22:28 ` [PATCH v3 07/13] pci: introduce struct pci_dev Peter Xu
2016-11-14 22:28 ` [PATCH v3 08/13] pci: provide pci_scan_bars() Peter Xu
2016-11-15 8:54 ` Andrew Jones
2016-11-15 16:32 ` Peter Xu
2016-11-14 22:28 ` [PATCH v3 09/13] pci: provide pci_enable_defaults() Peter Xu
2016-11-15 8:58 ` Andrew Jones
2016-11-15 16:42 ` Peter Xu
2016-11-15 17:15 ` Andrew Jones
2016-11-14 22:28 ` [PATCH v3 10/13] pci: edu: introduce pci-edu helpers Peter Xu
2016-11-15 9:02 ` Andrew Jones
2016-11-14 22:28 ` [PATCH v3 11/13] x86: intel-iommu: add dmar test Peter Xu
2016-11-15 9:08 ` Andrew Jones
2016-11-15 17:01 ` Peter Xu
2016-11-14 22:28 ` [PATCH v3 12/13] pci: add msi support for 32/64bit address Peter Xu
2016-11-15 9:10 ` Andrew Jones
2016-11-14 22:28 ` [PATCH v3 13/13] x86: intel-iommu: add IR MSI test Peter Xu
2016-11-15 9:13 ` Andrew Jones
2016-11-14 22:36 ` THIS SERIES SHOULD BE: "[PATCH v4 00/13] VT-d unit test" Peter Xu
2016-11-15 9:17 ` [PATCH v3 00/13] VT-d unit test Andrew Jones
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=1479162491-20764-5-git-send-email-peterx@redhat.com \
--to=peterx@redhat.com \
--cc=agordeev@redhat.com \
--cc=drjones@redhat.com \
--cc=jan.kiszka@web.de \
--cc=kvm@vger.kernel.org \
--cc=pbonzini@redhat.com \
--cc=rkrcmar@redhat.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).