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| author | Raul E Rangel <rrangel@chromium.org> | 2018-08-22 10:03:05 -0600 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2018-09-10 15:01:04 +0000 |
| commit | 80d5c195901d7fa1a442b36d697f9f0f3f063379 (patch) | |
| tree | ea157434824368d55047d03d5fbe0e84dfe06d2e /payloads/libpayload/include/exception.h | |
| parent | 28cee59ca294422056d983fc06d5d8d5800a4390 (diff) | |
| download | coreboot-80d5c195901d7fa1a442b36d697f9f0f3f063379.tar.xz | |
libpayload/x86/exception: Add ability to handle user defined interrupts
I need to setup the APIC timer to fire interrupts. I would like to reuse
the existing interrupt table. So I extended it to support user defined
interrupts. I just added all 255 vectors so there wouldn't need to be
any additional build time configuration.
I'm going to deprecate exception_install_hook and remove it in a follow
up. It will be replaced with set_interrupt_handler. This way the
exception lookup does not have to manage a list of callbacks, or have to
worry about the order they are processed.
BUG=b:109749762
TEST=Wrote an interrupt handler and fired an APIC timer interrupt and
verified that vector 32 was returned.
Change-Id: Id9c2583c7c3d9be4a06a25e546e64399f2b0620c
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Reviewed-on: https://review.coreboot.org/28100
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'payloads/libpayload/include/exception.h')
| -rw-r--r-- | payloads/libpayload/include/exception.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/payloads/libpayload/include/exception.h b/payloads/libpayload/include/exception.h index 67923ea9af..7a7bc46d26 100644 --- a/payloads/libpayload/include/exception.h +++ b/payloads/libpayload/include/exception.h @@ -36,6 +36,10 @@ typedef int (*exception_hook)(u32 type); void exception_init(void); +/* Deprecated, use set_interrupt_handler. */ void exception_install_hook(exception_hook h); +typedef void (*interrupt_handler)(u8 vector); +void set_interrupt_handler(u8 vector, interrupt_handler handler); + #endif |