soc/intel/tgl: Add config to disable IME
Unlike CNL, default to false due to the S0ix issue. Change-Id: I6da4f59759c25dc0247d2beaaa7d793d6f4e6795
This commit is contained in:
committed by
Jeremy Soller
parent
9962529199
commit
e67769d719
@@ -250,4 +250,9 @@ config EARLY_TCSS_DISPLAY
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help
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Enable displays to be detected over Type-C ports during boot.
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config DISABLE_ME
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bool "Disable the IME by setting the HAP bit at run-time"
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# XXX: Prevents CPU from reaching C10
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default n
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endif
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@@ -163,5 +163,33 @@ static void dump_me_status(void *unused)
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hfsts6.fields.txt_support ? "YES" : "NO");
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}
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#if CONFIG(DISABLE_ME)
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static void disable_me(void* unused)
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{
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printk(BIOS_DEBUG, "ME: send disable message\n");
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struct disable_command {
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uint32_t hdr;
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uint32_t rule_id;
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uint8_t rule_len;
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uint32_t rule_data;
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} __packed msg;
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msg.hdr = 0x303;
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msg.rule_id = 6;
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msg.rule_len = 4;
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msg.rule_data = 0;
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if (!heci_send(&msg, sizeof(msg), BIOS_HOST_ADDR, HECI_MKHI_ADDR))
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printk(BIOS_ERR, "ME: Error sending DISABLE msg\n");
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dump_me_status(unused);
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}
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BOOT_STATE_INIT_ENTRY(BS_OS_RESUME_CHECK, BS_ON_EXIT, disable_me, NULL);
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#else // DISABLE_ME
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BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_EXIT, print_me_fw_version, NULL);
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BOOT_STATE_INIT_ENTRY(BS_OS_RESUME_CHECK, BS_ON_EXIT, dump_me_status, NULL);
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#endif // DISABLE_ME
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