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    Contents of /tags/kernel26-xen-2_6_25_r1-fedora9-patches/kernel26-xen/patches-2.6.25-r1/1143-2.6.25-xen-syscall-related-Xen-ifdefs-FIXME.patch

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    Revision 608 - (show annotations) (download)
    Fri May 23 12:17:32 2008 UTC (16 years ago) by (unknown author)
    File size: 1571 byte(s) 
    This commit was manufactured by cvs2svn to create tag
'kernel26-xen-2_6_25_r1-fedora9-patches'.
    1 From c652961120a42fdcb31b2817e8d0863b1bfbcac9 Mon Sep 17 00:00:00 2001
    2 From: Eduardo Habkost <ehabkost@redhat.com>
    3 Date: Mon, 4 Feb 2008 17:38:24 -0200
    4 Subject: [PATCH] syscall-related Xen #ifdefs (FIXME)
    5
    6 Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
    7 ---
    8 arch/x86/kernel/entry_64.S | 14 ++++++++++++++
    9 1 files changed, 14 insertions(+), 0 deletions(-)
    10
    11 diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
    12 index 7961d22..215b16d 100644
    13 --- a/arch/x86/kernel/entry_64.S
    14 +++ b/arch/x86/kernel/entry_64.S
    15 @@ -96,20 +96,29 @@ ENTRY(native_irq_enable_syscall_ret)
    16
    17 /* %rsp:at FRAMEEND */
    18 .macro FIXUP_TOP_OF_STACK tmp
    19 +#ifndef CONFIG_XEN
    20 + /*FIXME: check this at runtime */
    21 movq %gs:pda_oldrsp,\tmp
    22 movq \tmp,RSP(%rsp)
    23 +#endif
    24 movq $__USER_DS,SS(%rsp)
    25 movq $__USER_CS,CS(%rsp)
    26 movq $-1,RCX(%rsp)
    27 +#ifndef CONFIG_XEN
    28 + /*FIXME: check this at runtime */
    29 movq R11(%rsp),\tmp /* get eflags */
    30 movq \tmp,EFLAGS(%rsp)
    31 +#endif
    32 .endm
    33
    34 .macro RESTORE_TOP_OF_STACK tmp,offset=0
    35 +#ifndef CONFIG_XEN
    36 + /*FIXME: check this at runtime */
    37 movq RSP-\offset(%rsp),\tmp
    38 movq \tmp,%gs:pda_oldrsp
    39 movq EFLAGS-\offset(%rsp),\tmp
    40 movq \tmp,R11-\offset(%rsp)
    41 +#endif
    42 .endm
    43
    44 .macro FAKE_STACK_FRAME child_rip
    45 @@ -288,7 +297,12 @@ sysret_check:
    46 TRACE_IRQS_ON
    47 movq RIP-ARGOFFSET(%rsp),%rcx
    48 CFI_REGISTER rip,rcx
    49 +#ifndef CONFIG_XEN
    50 + /*FIXME: change this at runtime */
    51 RESTORE_ARGS 0,-ARG_SKIP,1
    52 +#else
    53 + RESTORE_ARGS 0,8,0
    54 +#endif
    55 /*CFI_REGISTER rflags,r11*/
    56 ENABLE_INTERRUPTS_SYSCALL_RET
    57
    58 --
    59 1.5.4.1
    60