From: "Mike Smith" <mmiikkee13@gmail.com>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] QEMU hard disks don't set ERR on reading a nonexistent sector
Date: Sun, 21 Jan 2007 13:40:13 -0000 [thread overview]
Message-ID: <cf9be6530701210540x7bacbe2cs5f81ea52a4e0b3c3@mail.gmail.com> (raw)
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I was adding error detection to my OS's IDE driver, and noticed that when I
read a non-existent sector, say 0xDEADBEEF on a 20MB hard disk image, ERR
does not get set in the IDE status register. VMWare and Bochs correctly set
this, so I'm pretty sure it's QEMU and not my bad coding. I'm using Linux as
host and Popcorn (popcorn-os.sourceforge.net in case you need the code that
causes this) as guest.
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reply other threads:[~2007-01-21 13:40 UTC|newest]
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