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authorRaul E Rangel <rrangel@chromium.org>2018-08-22 10:03:05 -0600
committerPatrick Georgi <pgeorgi@google.com>2018-09-10 15:01:04 +0000
commit80d5c195901d7fa1a442b36d697f9f0f3f063379 (patch)
treeea157434824368d55047d03d5fbe0e84dfe06d2e /payloads/libpayload/include
parent28cee59ca294422056d983fc06d5d8d5800a4390 (diff)
downloadcoreboot-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')
-rw-r--r--payloads/libpayload/include/exception.h4
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