All of lore.kernel.org
 help / color / mirror / Atom feed
From: Sergej Proskurin <proskurin@sec.in.tum.de>
To: xen-devel@lists.xenproject.org
Cc: Sergej Proskurin <proskurin@sec.in.tum.de>,
	Julien Grall <julien.grall@arm.com>,
	Stefano Stabellini <sstabellini@kernel.org>
Subject: [PATCH v8 06/13] arm/mem_access: Introduce BIT_ULL bit operation
Date: Wed,  9 Aug 2017 10:20:31 +0200	[thread overview]
Message-ID: <20170809082038.3236-7-proskurin@sec.in.tum.de> (raw)
In-Reply-To: <20170809082038.3236-1-proskurin@sec.in.tum.de>

We introduce the BIT_ULL macro to using values of unsigned long long as
to enable setting bits of 64-bit registers on AArch32.  In addition,
this commit adds a define holding the register width of 64 bit
double-word registers. This define simplifies using the associated
constants in the following commits.

Signed-off-by: Sergej Proskurin <proskurin@sec.in.tum.de>
Reviewed-by: Julien Grall <julien.grall@arm.com>
---
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Julien Grall <julien.grall@arm.com>
---
v4: We reused the previous commit with the msg "arm/mem_access: Add
    defines holding the width of 32/64bit regs" from v3, as we can reuse
    the already existing define BITS_PER_WORD.

v5: Introduce a new macro BIT_ULL instead of changing the type of the
    macro BIT.

    Remove the define BITS_PER_DOUBLE_WORD.

v6: Add Julien Grall's Reviewed-by.
---
 xen/include/asm-arm/bitops.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/xen/include/asm-arm/bitops.h b/xen/include/asm-arm/bitops.h
index bda889841b..1cbfb9edb2 100644
--- a/xen/include/asm-arm/bitops.h
+++ b/xen/include/asm-arm/bitops.h
@@ -24,6 +24,7 @@
 #define BIT(nr)                 (1UL << (nr))
 #define BIT_MASK(nr)            (1UL << ((nr) % BITS_PER_WORD))
 #define BIT_WORD(nr)            ((nr) / BITS_PER_WORD)
+#define BIT_ULL(nr)             (1ULL << (nr))
 #define BITS_PER_BYTE           8
 
 #define ADDR (*(volatile int *) addr)
-- 
2.13.3


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
https://lists.xen.org/xen-devel

  parent reply	other threads:[~2017-08-09  8:21 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-09  8:20 [PATCH v8 00/13] arm/mem_access: Walk guest page tables in SW if mem_access is active Sergej Proskurin
2017-08-09  8:20 ` [PATCH v8 01/13] arm/mem_access: Add and cleanup (TCR_|TTBCR_)* defines Sergej Proskurin
2017-08-09  8:20 ` [PATCH v8 02/13] arm/mem_access: Add defines supporting PTs with varying page sizes Sergej Proskurin
2017-08-09  8:20 ` [PATCH v8 03/13] arm/lpae: Introduce lpae_is_page helper Sergej Proskurin
2017-08-09  8:20 ` [PATCH v8 04/13] arm/mem_access: Add short-descriptor pte typedefs and macros Sergej Proskurin
2017-08-09  8:20 ` [PATCH v8 05/13] arm/mem_access: Introduce GV2M_EXEC permission Sergej Proskurin
2017-08-09  8:20 ` Sergej Proskurin [this message]
2017-08-09  8:20 ` [PATCH v8 07/13] arm/mem_access: Introduce GENMASK_ULL bit operation Sergej Proskurin
2017-08-15 18:08   ` Sergej Proskurin
2017-08-15 22:24   ` Stefano Stabellini
2017-08-09  8:20 ` [PATCH v8 08/13] arm/guest_access: Move vgic_access_guest_memory to guest_access.h Sergej Proskurin
2017-08-16  9:58   ` Sergej Proskurin
2017-08-16 10:11     ` Julien Grall
2017-08-16 12:35       ` Sergej Proskurin
2017-08-09  8:20 ` [PATCH v8 09/13] arm/guest_access: Rename vgic_access_guest_memory Sergej Proskurin
2017-08-14 17:29   ` Julien Grall
2017-08-09  8:20 ` [PATCH v8 10/13] arm/mem_access: Add software guest-page-table walk Sergej Proskurin
2017-08-09  8:20 ` [PATCH v8 11/13] arm/mem_access: Add long-descriptor based gpt Sergej Proskurin
2017-08-14 17:37   ` Julien Grall
2017-08-14 21:03     ` Sergej Proskurin
2017-08-15 10:13       ` Julien Grall
2017-08-15 18:03         ` Sergej Proskurin
2017-08-15 22:25         ` Stefano Stabellini
2017-08-15 22:28           ` Andrew Cooper
2017-08-16  8:53             ` Sergej Proskurin
2017-08-09  8:20 ` [PATCH v8 12/13] arm/mem_access: Add short-descriptor " Sergej Proskurin
2017-08-09  8:20 ` [PATCH v8 13/13] arm/mem_access: Walk the guest's pt in software Sergej Proskurin

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=20170809082038.3236-7-proskurin@sec.in.tum.de \
    --to=proskurin@sec.in.tum.de \
    --cc=julien.grall@arm.com \
    --cc=sstabellini@kernel.org \
    --cc=xen-devel@lists.xenproject.org \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.