arm64: Pass COREBOOT flag to ARM TF, always enable logging
This patch changes the way coreboot builds ARM TF to pass the new COREBOOT flag introduced with the following pull request: https://github.com/ARM-software/arm-trusted-firmware/pull/1193 Since the new coreboot support code supports the CBMEM console, we need to always enable LOG_LEVEL INFO. Supporting platforms will parse the coreboot table to conditionally enable the serial console only if it was enabled in coreboot as well. Also remove explicit cache flushes of some BL31 parameters. Turns out we never really needed these because we already flush the whole cache when disabling the MMU, and we were already not doing it for most parameters. Change-Id: I3c52a536dc6067da1378b3f15c4a4d6cf0be7ce7 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/23558 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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2 changed files with 13 additions and 8 deletions
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@ -146,14 +146,20 @@ ifeq ($(V),1)
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BL31_MAKEARGS += V=1
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endif
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# Build ARM TF in debug mode (with serial output) if coreboot uses serial
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ifeq ($(CONFIG_CONSOLE_SERIAL),y)
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# Build ARM TF in debug mode (with assertions) if coreboot has hard assertions
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ifeq ($(CONFIG_FATAL_ASSERTS),y)
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BL31_MAKEARGS += DEBUG=1
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else
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# Turn off NOTICE messages from BL31 if coreboot does not use serial
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BL31_MAKEARGS += LOG_LEVEL=0
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endif # CONFIG_CONSOLE_SERIAL
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# ARM TF's VERBOSE (50) is *very* spammy, so default to INFO (40)
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BL31_MAKEARGS += LOG_LEVEL=40
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# Always enable crash reporting, even on a release build
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BL31_MAKEARGS += CRASH_REPORTING=1
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# Enable coreboot-specific features like CBMEM console support
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BL31_MAKEARGS += COREBOOT=1
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# Avoid build/release|build/debug distinction by overriding BUILD_PLAT directly
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BL31_MAKEARGS += BUILD_PLAT="$(BL31_BUILD)"
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@ -81,11 +81,10 @@ void arm_tf_run_bl31(u64 payload_entry, u64 payload_arg0, u64 payload_spsr)
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bl33_ep_info.spsr = payload_spsr;
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bl33_ep_info.args.arg0 = payload_arg0;
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/* May update bl31_params if necessary. Must flush all added structs. */
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/* May update bl31_params if necessary. */
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void *bl31_plat_params = soc_get_bl31_plat_params(&bl31_params);
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dcache_clean_by_mva(&bl31_params, sizeof(bl31_params));
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dcache_clean_by_mva(&bl33_ep_info, sizeof(bl33_ep_info));
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/* MMU disable will flush cache, so passed params land in memory. */
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raw_write_daif(SPSR_EXCEPTION_MASK);
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mmu_disable();
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bl31_entry(&bl31_params, bl31_plat_params);
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