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Subject[tip:x86/asm] x86-64, paravirt: Call set_iopl_mask() on 64 bits
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;
}

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