From: "tip-bot for H. Peter Anvin" <hpa@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, jeremy@goop.org, hpa@zytor.com,
mingo@redhat.com, brgerst@gmail.com, tglx@linutronix.de
Subject: [tip:x86/asm] x86-64, paravirt: Call set_iopl_mask() on 64 bits
Date: Thu, 10 Dec 2009 00:57:32 GMT [thread overview]
Message-ID: <tip-fc380ceed7fe469728ea4acdbda4495ea943ee1c@git.kernel.org> (raw)
In-Reply-To: <1260403316-5679-3-git-send-email-brgerst@gmail.com>
Commit-ID: fc380ceed7fe469728ea4acdbda4495ea943ee1c
Gitweb: http://git.kernel.org/tip/fc380ceed7fe469728ea4acdbda4495ea943ee1c
Author: H. Peter Anvin <hpa@zytor.com>
AuthorDate: Wed, 9 Dec 2009 16:54:08 -0800
Committer: H. Peter Anvin <hpa@zytor.com>
CommitDate: Wed, 9 Dec 2009 16:54:08 -0800
x86-64, paravirt: Call set_iopl_mask() on 64 bits
set_iopl_mask() is a no-op on 64 bits, but it is also a paravirt hook,
so call it even on 64 bits.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Brian Gerst <brgerst@gmail.com>
LKML-Reference: <1260403316-5679-3-git-send-email-brgerst@gmail.com>
---
arch/x86/kernel/ioport.c | 2 --
1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c
index 85ecc7c..8eec0ec 100644
--- a/arch/x86/kernel/ioport.c
+++ b/arch/x86/kernel/ioport.c
@@ -116,10 +116,8 @@ long sys_iopl(unsigned int level, struct pt_regs *regs)
return -EPERM;
}
regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) | (level << 12);
-#ifdef CONFIG_X86_32
t->iopl = level << 12;
set_iopl_mask(t->iopl);
-#endif
return 0;
}
next prev parent reply other threads:[~2009-12-10 0:57 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-10 0:01 [PATCH 0/6] x86: Merge pt_regs using syscalls Brian Gerst
2009-12-10 0:01 ` [PATCH 1/6] x86, 32-bit: Add new pt_regs stubs Brian Gerst
2009-12-10 0:05 ` H. Peter Anvin
2009-12-10 0:45 ` [tip:x86/asm] x86-32: " tip-bot for Brian Gerst
2009-12-10 0:47 ` [tip:x86/asm] x86-32: Avoid pipeline serialization in PTREGSCALL1 and 2 tip-bot for H. Peter Anvin
2009-12-10 0:01 ` [PATCH 2/6] x86: Merge sys_iopl Brian Gerst
2009-12-10 0:45 ` [tip:x86/asm] " tip-bot for Brian Gerst
2009-12-10 0:57 ` tip-bot for H. Peter Anvin [this message]
2009-12-10 0:01 ` [PATCH 3/6] x86: Merge sys_execve Brian Gerst
2009-12-10 0:46 ` [tip:x86/asm] " tip-bot for Brian Gerst
2009-12-10 0:01 ` [PATCH 4/6] x86: Merge sys_sigaltstack Brian Gerst
2009-12-10 0:46 ` [tip:x86/asm] " tip-bot for Brian Gerst
2009-12-10 0:01 ` [PATCH 5/6] x86, 32-bit: Convert sys_vm86 & sys_vm86old Brian Gerst
2009-12-10 0:46 ` [tip:x86/asm] " tip-bot for Brian Gerst
2009-12-10 0:01 ` [PATCH 6/6] x86: Merge sys_clone Brian Gerst
2009-12-10 0:46 ` [tip:x86/asm] " tip-bot for Brian Gerst
2009-12-10 0:47 ` [PATCH 0/6] x86: Merge pt_regs using syscalls H. Peter Anvin
2009-12-10 0:52 ` Jeremy Fitzhardinge
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