From b01ac7e26453677318776885d4ab870f59553ae6 Mon Sep 17 00:00:00 2001 From: Patrick Rudolph Date: Sun, 26 Jul 2020 14:23:37 +0200 Subject: cpu/intel/common: Fill cpu voltage in SMBIOS tables Introduce a weak function to let the platform code provide the processor voltage in 100mV units. Implement the function on Intel platforms using the MSR_PERF_STATUS msr. On other platforms the processor voltage still reads as unknown. Tested on Intel CFL. The CPU voltage is correctly advertised. Change-Id: I31a7efcbeede50d986a1c096a4a59a316e09f825 Signed-off-by: Patrick Rudolph Reviewed-on: https://review.coreboot.org/c/coreboot/+/43904 Tested-by: build bot (Jenkins) Reviewed-by: Angel Pons Reviewed-by: Jonathan Zhang Reviewed-by: Nico Huber --- src/include/smbios.h | 1 + 1 file changed, 1 insertion(+) (limited to 'src/include') diff --git a/src/include/smbios.h b/src/include/smbios.h index 6a19655b31..4ddf4384dc 100644 --- a/src/include/smbios.h +++ b/src/include/smbios.h @@ -40,6 +40,7 @@ const char *smbios_system_sku(void); unsigned int smbios_cpu_get_max_speed_mhz(void); unsigned int smbios_cpu_get_current_speed_mhz(void); +unsigned int smbios_cpu_get_voltage(void); const char *smbios_mainboard_manufacturer(void); const char *smbios_mainboard_product_name(void); -- cgit v1.2.3