diff options
| author | Raul E Rangel <rrangel@chromium.org> | 2018-08-20 11:14:44 -0600 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2018-09-12 14:14:46 +0000 |
| commit | ac8ebd0e73774c83bfa5cb3dd460c662000e0d19 (patch) | |
| tree | 793e8e859456e8bca38f9d14887fdbc05c08158b /payloads/libpayload/arch/x86/main.c | |
| parent | 3d398ad37af84bdbe15e5dc82d39213b8437dd12 (diff) | |
libpayload/arch/x86: Add support for initializing the APIC
This is just the bare minimum required to initialize the APIC. I only
support xAPIC and chose not to support x2APIC. We can add that
functionality later when it's required.
I also made the exception dispatcher call apic_eoi so that the callbacks
won't forget to call it.
BUG=b:109749762
TEST=Booted grunt and verified that depthcharge continued to function
and that linux booted correctly. Also verified GDB still works.
Change-Id: I420a4eadae84df088525e727b481089ef615183f
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Reviewed-on: https://review.coreboot.org/28241
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'payloads/libpayload/arch/x86/main.c')
| -rw-r--r-- | payloads/libpayload/arch/x86/main.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/payloads/libpayload/arch/x86/main.c b/payloads/libpayload/arch/x86/main.c index f9a5e2cf83..05ffa0d83b 100644 --- a/payloads/libpayload/arch/x86/main.c +++ b/payloads/libpayload/arch/x86/main.c @@ -29,6 +29,7 @@ #include <exception.h> #include <libpayload.h> +#include <arch/apic.h> unsigned long loader_eax; /**< The value of EAX passed from the loader */ unsigned long loader_ebx; /**< The value of EBX passed from the loader */ @@ -57,6 +58,12 @@ int start_main(void) exception_init(); + if (IS_ENABLED(CONFIG_LP_ENABLE_APIC)) { + apic_init(); + + enable_interrupts(); + } + /* * Any other system init that has to happen before the * user gets control goes here. |