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(parent: c76e275) | patch
arch: arm/xen: add putc() for debugging
authorAKASHI Takahiro <takahiro.akashi@linaro.org>
Thu, 15 Oct 2020 04:25:14 +0000 (13:25 +0900)
committerTom Rini <trini@konsulko.com>
Thu, 22 Oct 2020 15:26:14 +0000 (11:26 -0400)
commit21b87c9efa055d2c4b7a13ed1b6597a3723d2781
tree26fa9a221f069691d0364ededd0b39c04b5c2546tree | snapshot
parentc76e275bbbcc3a038b93c0322251d9ae34f54921commit | diff
arch: arm/xen: add putc() for debugging

This new function, xen_debug_putc(), is intended to be used to
enable CONFIG_DEBUG_UART on xen guest.

Please note that the underlying functionality in Xen is available
only when Xen is configured with !NDEBUG but is much simpler than
a generic HYPERVISOR_console_io().

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
arch/arm/include/asm/xen/hypercall.h diff | blob | history
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