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Wanlong Gao
26a3a071bb
Documentation: Change the binary name from *kvm* to *lkvm*, since commit ad3efb18 already called the binary *lkvm* and with a alias name *vm*. Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
16 lines
441 B
Plaintext
16 lines
441 B
Plaintext
This document explains how to debug a guests' kernel using KGDB.
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1. Run the guest:
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'lkvm run -k [vmlinuz] -p "kgdboc=ttyS1 kgdbwait" --tty 1'
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And see which PTY got assigned to ttyS1 (you'll see:
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' Info: Assigned terminal 1 to pty /dev/pts/X').
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2. Run GDB on the host:
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'gdb [vmlinuz]'
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3. Connect to the guest (from within GDB):
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'target remote /dev/pty/X'
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4. Start debugging! (enter 'continue' to continue boot).
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