Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759153AbYFYEnZ (ORCPT ); Wed, 25 Jun 2008 00:43:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755849AbYFYEh1 (ORCPT ); Wed, 25 Jun 2008 00:37:27 -0400 Received: from 9.sub-70-198-159.myvzw.com ([70.198.159.9]:37441 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754764AbYFYEhS (ORCPT ); Wed, 25 Jun 2008 00:37:18 -0400 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [PATCH 33 of 36] x86_64: ia32entry: replace privileged instructions with pvops X-Mercurial-Node: dab2b47265e6167ae7251a69c2f09763de6eaf5a Message-Id: In-Reply-To: Date: Wed, 25 Jun 2008 00:19:29 -0400 From: Jeremy Fitzhardinge To: Ingo Molnar Cc: LKML , x86@kernel.org, xen-devel , Stephen Tweedie , Eduardo Habkost , Mark McLoughlin , x86@kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2388 Lines: 86 Replace privileged instructions with the corresponding pvops in ia32entry.S. Signed-off-by: Jeremy Fitzhardinge --- arch/x86/ia32/ia32entry.S | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S --- a/arch/x86/ia32/ia32entry.S +++ b/arch/x86/ia32/ia32entry.S @@ -98,14 +98,14 @@ CFI_SIGNAL_FRAME CFI_DEF_CFA rsp,0 CFI_REGISTER rsp,rbp - swapgs + SWAPGS movq %gs:pda_kernelstack, %rsp addq $(PDA_STACKOFFSET),%rsp /* * No need to follow this irqs on/off section: the syscall * disabled irqs, here we enable it straight after entry: */ - sti + ENABLE_INTERRUPTS(CLBR_NONE) movl %ebp,%ebp /* zero extension */ pushq $__USER32_DS CFI_ADJUST_CFA_OFFSET 8 @@ -147,7 +147,7 @@ call *ia32_sys_call_table(,%rax,8) movq %rax,RAX-ARGOFFSET(%rsp) GET_THREAD_INFO(%r10) - cli + DISABLE_INTERRUPTS(CLBR_NONE) TRACE_IRQS_OFF testl $_TIF_ALLWORK_MASK,threadinfo_flags(%r10) jnz int_ret_from_sys_call @@ -210,7 +210,7 @@ CFI_DEF_CFA rsp,PDA_STACKOFFSET CFI_REGISTER rip,rcx /*CFI_REGISTER rflags,r11*/ - swapgs + SWAPGS movl %esp,%r8d CFI_REGISTER rsp,r8 movq %gs:pda_kernelstack,%rsp @@ -218,7 +218,7 @@ * No need to follow this irqs on/off section: the syscall * disabled irqs and here we enable it straight after entry: */ - sti + ENABLE_INTERRUPTS(CLBR_NONE) SAVE_ARGS 8,1,1 movl %eax,%eax /* zero extension */ movq %rax,ORIG_RAX-ARGOFFSET(%rsp) @@ -251,7 +251,7 @@ call *ia32_sys_call_table(,%rax,8) movq %rax,RAX-ARGOFFSET(%rsp) GET_THREAD_INFO(%r10) - cli + DISABLE_INTERRUPTS(CLBR_NONE) TRACE_IRQS_OFF testl $_TIF_ALLWORK_MASK,threadinfo_flags(%r10) jnz int_ret_from_sys_call @@ -319,12 +319,12 @@ /*CFI_REL_OFFSET rflags,EFLAGS-RIP*/ /*CFI_REL_OFFSET cs,CS-RIP*/ CFI_REL_OFFSET rip,RIP-RIP - swapgs + SWAPGS /* * No need to follow this irqs on/off section: the syscall * disabled irqs and here we enable it straight after entry: */ - sti + ENABLE_INTERRUPTS(CLBR_NONE) movl %eax,%eax pushq %rax CFI_ADJUST_CFA_OFFSET 8 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/