From: Julien Grall <julien.grall@arm.com>
To: xen-devel@lists.xen.org
Cc: andre.przywara@arm.com, Julien Grall <julien.grall@arm.com>,
sstabellini@kernel.org, wei.chen@arm.com, steve.capper@arm.com
Subject: [RFC 07/16] xen/arm: arm64: Move the define BRK_BUG_FRAME into a separate header
Date: Thu, 5 May 2016 17:34:16 +0100 [thread overview]
Message-ID: <1462466065-30212-8-git-send-email-julien.grall@arm.com> (raw)
In-Reply-To: <1462466065-30212-1-git-send-email-julien.grall@arm.com>
New immediates will be defined in the future. To keep track of the
immediates allocated, gather all of them in a separate header.
Also rename BRK_BUG_FRAME to BKR_BUG_FRAME_IMM.
Signed-off-by: Julien Grall <julien.grall@arm.com>
---
xen/arch/arm/traps.c | 2 +-
xen/include/asm-arm/arm64/brk.h | 26 ++++++++++++++++++++++++++
xen/include/asm-arm/arm64/bug.h | 5 ++---
3 files changed, 29 insertions(+), 4 deletions(-)
create mode 100644 xen/include/asm-arm/arm64/brk.h
diff --git a/xen/arch/arm/traps.c b/xen/arch/arm/traps.c
index 1828ea1..c0325d5 100644
--- a/xen/arch/arm/traps.c
+++ b/xen/arch/arm/traps.c
@@ -1205,7 +1205,7 @@ static void do_trap_brk(struct cpu_user_regs *regs, const union hsr hsr)
switch (hsr.brk.comment)
{
- case BRK_BUG_FRAME:
+ case BRK_BUG_FRAME_IMM:
if ( do_bug_frame(regs, regs->pc) )
goto die;
diff --git a/xen/include/asm-arm/arm64/brk.h b/xen/include/asm-arm/arm64/brk.h
new file mode 100644
index 0000000..7867b07
--- /dev/null
+++ b/xen/include/asm-arm/arm64/brk.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2016 ARM Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ASM_ARM_ARM64_BRK
+#define __ASM_ARM_ARM64_BRK
+
+/*
+ * #imm16 values used for BRK instruction generation
+ * 0x001: xen-mode BUG() and WARN() traps
+ */
+#define BRK_BUG_FRAME_IMM 1
+
+#endif /* !__ASM_ARM_ARM64_BRK */
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/xen/include/asm-arm/arm64/bug.h b/xen/include/asm-arm/arm64/bug.h
index 42b0e4f..59f664d 100644
--- a/xen/include/asm-arm/arm64/bug.h
+++ b/xen/include/asm-arm/arm64/bug.h
@@ -2,9 +2,8 @@
#define __ARM_ARM64_BUG_H__
#include <xen/stringify.h>
+#include <asm/arm64/brk.h>
-#define BRK_BUG_FRAME 1
-
-#define BUG_INSTR "brk " __stringify(BRK_BUG_FRAME)
+#define BUG_INSTR "brk " __stringify(BRK_BUG_FRAME_IMM)
#endif /* __ARM_ARM64_BUG_H__ */
--
1.9.1
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next prev parent reply other threads:[~2016-05-05 16:34 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-05 16:34 [RFC 00/16] xen/arm: Introduce alternative runtime patching for ARM64 Julien Grall
2016-05-05 16:34 ` [RFC 01/16] xen/arm: Makefile: Sort the entries alphabetically Julien Grall
2016-05-09 9:34 ` Stefano Stabellini
2016-05-05 16:34 ` [RFC 02/16] xen/arm: Include the header asm-arm/system.h in asm-arm/page.h Julien Grall
2016-05-09 9:34 ` Stefano Stabellini
2016-05-05 16:34 ` [RFC 03/16] xen/arm: Add macros to handle the MIDR Julien Grall
2016-05-09 9:37 ` Stefano Stabellini
2016-05-05 16:34 ` [RFC 04/16] xen/arm: arm64: Import flush_icache_range from Linux v4.6-rc3 Julien Grall
2016-05-09 9:40 ` Julien Grall
2016-05-05 16:34 ` [RFC 05/16] xen/arm: Add cpu_hwcap bitmap Julien Grall
2016-05-09 9:53 ` Stefano Stabellini
2016-05-09 10:02 ` Julien Grall
2016-05-05 16:34 ` [RFC 06/16] xen/arm64: Add an helper to invalidate all instruction caches Julien Grall
2016-05-09 9:50 ` Stefano Stabellini
2016-05-05 16:34 ` Julien Grall [this message]
2016-05-09 9:55 ` [RFC 07/16] xen/arm: arm64: Move the define BRK_BUG_FRAME into a separate header Stefano Stabellini
2016-05-05 16:34 ` [RFC 08/16] xen/arm: arm64: Reserve a brk immediate to fault on purpose Julien Grall
2016-05-09 9:58 ` Stefano Stabellini
2016-05-05 16:34 ` [RFC 09/16] xen/arm: arm64: Add helpers to decode and encode branch instructions Julien Grall
2016-05-09 10:05 ` Stefano Stabellini
2016-05-09 13:04 ` Julien Grall
2016-05-23 10:52 ` Julien Grall
2016-05-13 20:35 ` Konrad Rzeszutek Wilk
2016-05-14 10:49 ` Julien Grall
2016-05-05 16:34 ` [RFC 10/16] xen/arm: Introduce alternative runtime patching Julien Grall
2016-05-13 20:26 ` Konrad Rzeszutek Wilk
2016-05-14 18:02 ` Julien Grall
2016-05-21 15:09 ` Stefano Stabellini
2016-05-23 11:11 ` Julien Grall
2016-05-30 14:45 ` Stefano Stabellini
2016-05-30 16:42 ` Julien Grall
2016-05-31 9:21 ` Stefano Stabellini
2016-05-31 10:24 ` Julien Grall
2016-06-02 14:46 ` Konrad Rzeszutek Wilk
2016-06-02 15:04 ` Julien Grall
2016-06-02 15:14 ` Julien Grall
2016-06-06 14:17 ` Konrad Rzeszutek Wilk
2016-06-06 14:18 ` Julien Grall
2016-05-05 16:34 ` [RFC 11/16] xen/arm: Detect silicon revision and set cap bits accordingly Julien Grall
2016-05-13 20:37 ` Konrad Rzeszutek Wilk
2016-05-14 18:04 ` Julien Grall
2016-05-16 13:50 ` Konrad Rzeszutek Wilk
2016-05-16 13:54 ` Julien Grall
2016-05-05 16:34 ` [RFC 12/16] xen/arm: Document the errata implemented in Xen Julien Grall
2016-05-05 16:34 ` [RFC 13/16] xen/arm: arm64: Add Cortex-A53 cache errata workaround Julien Grall
2016-05-21 14:40 ` Stefano Stabellini
2016-05-23 13:39 ` Julien Grall
2016-05-05 16:34 ` [RFC 14/16] xen/arm: arm64: Add cortex-A57 erratum 832075 workaround Julien Grall
2016-05-05 16:34 ` [RFC 15/16] xen/arm: traps: Don't inject a fault if the translation VA -> IPA fails Julien Grall
2016-05-21 14:42 ` Stefano Stabellini
2016-05-21 14:51 ` Stefano Stabellini
2016-05-23 13:45 ` Julien Grall
2016-05-05 16:34 ` [RFC 16/16] xen/arm: arm64: Document Cortex-A57 erratum 834220 Julien Grall
2016-05-05 16:38 ` [RFC 00/16] xen/arm: Introduce alternative runtime patching for ARM64 Julien Grall
2016-05-11 2:28 ` Wei Chen
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