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soc/intel/sgx: convert SGX and PRMRR devicetree options to Kconfig

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The devicetree is not made for user-choosable options, thus introduce
Kconfig options for both SGX and the corresponding PRMRR size.

The PRMRR size Kconfig has been implemented as a maximum value. At
runtime the final PRMRR size gets selected by checking the supported
values in MSR_PRMRR_VALID_CONFIG and trying to select the value nearest
to the chosen one.

When "Maximum" is chosen, the highest possibly value from the MSR gets
used. When a too strict limit is set, coreboot will die, printing an
error message.

Tested successfully on X11SSM-F

Change-Id: I5f08e85898304bba6680075ca5d6bce26aef9a4d
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35799
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This commit is contained in:
Michael Niewöhner
2019-10-22 23:05:06 +02:00
committed by Nico Huber
parent e75a64f822
commit 7736bfc443
25 changed files with 130 additions and 82 deletions
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2
src/soc/intel/skylake/acpi.c
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@@ -205,7 +205,7 @@ static void acpi_create_gnvs(global_nvs_t *gnvs)
gnvs->u2we = config->usb2_wake_enable_bitmap;
gnvs->u3we = config->usb3_wake_enable_bitmap;
if (config->sgx_enable)
if (CONFIG(SOC_INTEL_COMMON_BLOCK_SGX_ENABLE))
sgx_fill_gnvs(gnvs);
}