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xen-devel
Re: [Xen-devel] [PATCH] Fixing iopl and ioperm
On 14 Jun 2005, at 14:21, Keir Fraser wrote:
Frankly, fixing this LTP test case will be a pain. If I have correctly
described what's going on then let's ignore it at least for now -- it
is not indicative of a real bug and it is entirely harmless. LTP is a
measure of stability for us, but passing every LTP test is not an end
in itself (we should understand the failures though).
Actually this is perhaps worth fixing, just to prevent a super-user
process from denying I/O access to the kernel itself (by running
iopl(0)). But please ignore the test failure in your patch: I can fix
it properly next week.
Also, please don't change set_bitmap() unless you are fixing a bug to
make it work with x86_64. I don;t care about simplifying its
implementation -- I'd rather keep the diff against the native i386
implementation as small as possible. As I originally said, I wonder if
you actually need any changes to xen/i386/kernel/ioport.c at all.
-- Keir
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