diff options
| author | Tim Chu <Tim.Chu@quantatw.com> | 2022-12-16 10:19:54 +0000 |
|---|---|---|
| committer | David Hendricks <david.hendricks@gmail.com> | 2023-02-19 23:02:18 +0000 |
| commit | 18545009407b1ec0e731f24ca4c16dbc967864b3 (patch) | |
| tree | d5e12e794a3fdb8926171dc9c6c2e626d1f64222 /src | |
| parent | b64fdcc0fab3d77a94a2053dd1231c60a2b5dc77 (diff) | |
soc/intel/xeon_sp/finalize.c: Set BIOS_DONE MSR as applicable
If BIOS_DONE MSR is supported, set it after ReadyToBoot, because FSP
programs certain registers via Notify phase ReadyToBoot and it cannot
be modified by FSP after coreboot has set BIOS_DONE MSR, therefore we
try to set BIOS_DONE MSR as late as possible to avoid this.
Signed-off-by: Tim Chu <Tim.Chu@quantatw.com>
Signed-off-by: Johnny Lin <johnny_lin@wiwynn.com>
Signed-off-by: Jonathan Zhang <jonzhang@meta.com>
Change-Id: I4f19a7c54818231ebbccd2b6f8b23f47b117eb1f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71964
Reviewed-by: Jonathan Zhang <jonzhang@fb.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/intel/xeon_sp/finalize.c | 16 | ||||
| -rw-r--r-- | src/soc/intel/xeon_sp/include/soc/util.h | 1 |
2 files changed, 17 insertions, 0 deletions
diff --git a/src/soc/intel/xeon_sp/finalize.c b/src/soc/intel/xeon_sp/finalize.c index 33a4d435d3..6b8395c783 100644 --- a/src/soc/intel/xeon_sp/finalize.c +++ b/src/soc/intel/xeon_sp/finalize.c @@ -11,6 +11,7 @@ #include <soc/pci_devs.h> #include <soc/pm.h> #include <soc/util.h> +#include <soc/soc_util.h> #include <smp/spinlock.h> #include "chip.h" @@ -83,4 +84,19 @@ static void soc_finalize(void *unused) post_code(POST_OS_BOOT); } +static void bios_done_finalize(void *unused) +{ + if (!CONFIG(SOC_INTEL_HAS_BIOS_DONE_MSR)) + return; + + printk(BIOS_DEBUG, "Setting BIOS_DONE\n"); + /* bios_done_msr() only defined for some Xeon-SP, such as SPR-SP */ + if (mp_run_on_all_cpus(&bios_done_msr, NULL) != CB_SUCCESS) + printk(BIOS_ERR, "Fail to set BIOS_DONE MSR\n"); + +} + BOOT_STATE_INIT_ENTRY(BS_PAYLOAD_LOAD, BS_ON_ENTRY, soc_finalize, NULL); +/* FSP programs certain registers via Notify phase ReadyToBoot that can only be programmed + before BIOS_DONE MSR is set, so coreboot sets BIOS_DONE as late as possible. */ +BOOT_STATE_INIT_ENTRY(BS_PAYLOAD_BOOT, BS_ON_ENTRY, bios_done_finalize, NULL); diff --git a/src/soc/intel/xeon_sp/include/soc/util.h b/src/soc/intel/xeon_sp/include/soc/util.h index 213735a3dd..371df1cb99 100644 --- a/src/soc/intel/xeon_sp/include/soc/util.h +++ b/src/soc/intel/xeon_sp/include/soc/util.h @@ -23,5 +23,6 @@ struct iiostack_resource { void get_iiostack_info(struct iiostack_resource *info); bool is_iio_stack_res(const STACK_RES *res); +void bios_done_msr(void *unused); #endif |