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| author |   David Woodhouse <dwmw@amazon.co.uk> | 2025-03-26 14:16:02 +0000 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2025-04-10 12:17:14 +0200 |
| commit | 7516e7216bdfb9e2fab0a0ca3bd23cb2e61e46ed (patch) | |
| tree | b35df9d0213d84e88ca2221f97c72eef1be0dfa3 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | x86/kexec: Add 8250 serial port output (diff) | |
| download | wireguard-linux-7516e7216bdfb9e2fab0a0ca3bd23cb2e61e46ed.tar.xz wireguard-linux-7516e7216bdfb9e2fab0a0ca3bd23cb2e61e46ed.zip | |
x86/kexec: Add 8250 MMIO serial port output
This supports the same 32-bit MMIO-mapped 8250 as the early_printk code.
It's not clear why the early_printk code supports this form and only this
form; the actual runtime 8250_pci doesn't seem to support it. But having
hacked up QEMU to expose such a device, early_printk does work with it,
and now so does the kexec debug code.
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20250326142404.256980-3-dwmw2@infradead.org
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions