From: Glauber de Oliveira Costa <gcosta@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: akpm@linux-foundation.org, glommer@gmail.com, tglx@linutronix.de,
mingo@elte.hu, ehabkost@redhat.com, jeremy@goop.org,
avi@qumranet.com, anthony@codemonkey.ws,
virtualization@lists.linux-foundation.org, rusty@rustcorp.com.au,
ak@suse.de, chrisw@sous-sol.org, rostedt@goodmis.org,
hpa@zytor.com, zach@vmware.com, roland@redhat.com,
Glauber de Oliveira Costa <gcosta@redhat.com>
Subject: [PATCH 12/15] add CLBR_ defines for x86_64.
Date: Thu, 20 Dec 2007 18:04:07 -0200 [thread overview]
Message-ID: <1198181348746-git-send-email-gcosta@redhat.com> (raw)
In-Reply-To: <11981813384090-git-send-email-gcosta@redhat.com>
x86_64 needs a potentially larger clobber list than i386, due to its calling
convention. So we add more CLBR_ defines for it.
Note that CLBR_ANY is different for each of the architectures, since it comprises
the notion of "All call clobbers in this architecture"
Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
---
include/asm-x86/paravirt.h | 23 ++++++++++++++++++-----
1 files changed, 18 insertions(+), 5 deletions(-)
Index: linux-2.6-x86/include/asm-x86/paravirt.h
===================================================================
--- linux-2.6-x86.orig/include/asm-x86/paravirt.h 2007-12-20 19:08:06.000000000 -0800
+++ linux-2.6-x86/include/asm-x86/paravirt.h 2007-12-20 19:08:10.000000000 -0800
@@ -8,11 +8,24 @@
#include <asm/asm.h>
/* Bitmask of what can be clobbered: usually at least eax. */
-#define CLBR_NONE 0x0
-#define CLBR_EAX 0x1
-#define CLBR_ECX 0x2
-#define CLBR_EDX 0x4
-#define CLBR_ANY 0x7
+#define CLBR_NONE 0
+#define CLBR_EAX (1 << 0)
+#define CLBR_ECX (1 << 1)
+#define CLBR_EDX (1 << 2)
+
+#ifdef CONFIG_X86_64
+#define CLBR_RSI (1 << 3)
+#define CLBR_RDI (1 << 4)
+#define CLBR_R8 (1 << 5)
+#define CLBR_R9 (1 << 6)
+#define CLBR_R10 (1 << 7)
+#define CLBR_R11 (1 << 8)
+#define CLBR_ANY ((1 << 9) - 1)
+#include <asm/desc_defs.h>
+#else
+/* CLBR_ANY should match all regs platform has. For i386, that's just it */
+#define CLBR_ANY ((1 << 3) - 1)
+#endif /* X86_64 */
#ifndef __ASSEMBLY__
#include <linux/types.h>
next prev parent reply other threads:[~2007-12-20 20:12 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-20 20:03 [PATCH 0/15] adjust pvops to accomodate its x86_64 variant Glauber de Oliveira Costa
2007-12-20 20:03 ` [PATCH 01/15] change paravirt_32.c name Glauber de Oliveira Costa
2007-12-20 20:03 ` [PATCH 02/15] adjust PVOP_CALL/VCALL macros for x86_64 Glauber de Oliveira Costa
2007-12-20 20:03 ` [PATCH 03/15] cleanup write_tsc Glauber de Oliveira Costa
2007-12-20 20:03 ` Glauber de Oliveira Costa
2007-12-20 20:03 ` [PATCH 04/15] provide paravirtualized hook for rdtscp Glauber de Oliveira Costa
2007-12-20 20:03 ` Glauber de Oliveira Costa
2007-12-20 20:04 ` [PATCH 05/15] change assembly definition of paravirt_patch_site Glauber de Oliveira Costa
2007-12-20 20:04 ` Glauber de Oliveira Costa
2007-12-20 20:04 ` [PATCH 06/15] adjust assembly macros to x86_64 as well Glauber de Oliveira Costa
2007-12-20 20:04 ` [PATCH 07/15] change irq functions to accomodate x86_64 Glauber de Oliveira Costa
2007-12-20 20:04 ` Glauber de Oliveira Costa
2007-12-20 20:04 ` [PATCH 08/15] add macro for privileged x86_64 operation Glauber de Oliveira Costa
2007-12-20 20:04 ` [PATCH 09/15] adds paravirt hook for swapgs Glauber de Oliveira Costa
2007-12-20 20:04 ` Glauber de Oliveira Costa
2007-12-20 20:04 ` [PATCH 10/15] replace privileged instructions with paravirt macros Glauber de Oliveira Costa
2007-12-20 20:04 ` [PATCH 11/15] cleanup CLI_STRING, STI_STRING and friends Glauber de Oliveira Costa
2007-12-20 20:04 ` Glauber de Oliveira Costa
2007-12-20 20:04 ` [PATCH 12/15] add CLBR_ defines for x86_64 Glauber de Oliveira Costa
2007-12-20 20:04 ` Glauber de Oliveira Costa [this message]
2007-12-20 20:04 ` [PATCH 13/15] move patching code to arch-specific file Glauber de Oliveira Costa
2007-12-20 20:04 ` Glauber de Oliveira Costa
2007-12-20 20:04 ` [PATCH 14/15] x86_64 patching functions Glauber de Oliveira Costa
2007-12-20 20:04 ` [PATCH 15/15] replace x86_read/write_per_cpu with a common function Glauber de Oliveira Costa
2007-12-20 20:04 ` Glauber de Oliveira Costa
2007-12-20 21:16 ` H. Peter Anvin
2007-12-20 21:16 ` H. Peter Anvin
2007-12-20 20:04 ` [PATCH 14/15] x86_64 patching functions Glauber de Oliveira Costa
2007-12-20 20:31 ` [PATCH 13/15] move patching code to arch-specific file Ingo Molnar
2007-12-20 20:31 ` Ingo Molnar
2007-12-20 20:33 ` Ingo Molnar
2007-12-20 20:33 ` Ingo Molnar
2007-12-20 21:22 ` Glauber de Oliveira Costa
2007-12-20 21:22 ` Glauber de Oliveira Costa
2007-12-20 21:26 ` Ingo Molnar
2007-12-20 21:26 ` Ingo Molnar
2007-12-20 20:04 ` [PATCH 10/15] replace privileged instructions with paravirt macros Glauber de Oliveira Costa
2007-12-20 20:04 ` [PATCH 08/15] add macro for privileged x86_64 operation Glauber de Oliveira Costa
2007-12-20 20:04 ` [PATCH 06/15] adjust assembly macros to x86_64 as well Glauber de Oliveira Costa
2007-12-20 20:03 ` [PATCH 02/15] adjust PVOP_CALL/VCALL macros for x86_64 Glauber de Oliveira Costa
2007-12-20 20:03 ` [PATCH 01/15] change paravirt_32.c name Glauber de Oliveira Costa
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