51a5495841
Change-Id: I57e064d26b215743a1cb06bb6605fc4fe1160876 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41491 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
55 lines
1.1 KiB
C
55 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
|
|
#include <acpi/acpi.h>
|
|
#include <cpu/x86/mp.h>
|
|
#include <cpu/x86/msr.h>
|
|
#include <cpu/amd/msr.h>
|
|
#include <bootstate.h>
|
|
#include <console/console.h>
|
|
#include <amdblocks/acpi.h>
|
|
|
|
static void per_core_finalize(void *unused)
|
|
{
|
|
msr_t hwcr, mask;
|
|
|
|
/* Finalize SMM settings */
|
|
hwcr = rdmsr(HWCR_MSR);
|
|
if (hwcr.lo & SMM_LOCK) /* Skip if already locked, avoid GPF */
|
|
return;
|
|
|
|
if (CONFIG(HAVE_SMI_HANDLER)) {
|
|
mask = rdmsr(SMM_MASK_MSR);
|
|
mask.lo |= SMM_TSEG_VALID;
|
|
wrmsr(SMM_MASK_MSR, mask);
|
|
}
|
|
|
|
hwcr.lo |= SMM_LOCK;
|
|
wrmsr(HWCR_MSR, hwcr);
|
|
}
|
|
|
|
static void finalize_cores(void)
|
|
{
|
|
int r;
|
|
printk(BIOS_SPEW, "Lock SMM configuration\n");
|
|
|
|
r = mp_run_on_all_cpus(per_core_finalize, NULL);
|
|
if (r)
|
|
printk(BIOS_WARNING, "Failed to finalize all cores\n");
|
|
}
|
|
|
|
static void soc_finalize(void *unused)
|
|
{
|
|
finalize_cores();
|
|
|
|
if (!acpi_is_wakeup_s3()) {
|
|
if (CONFIG(HAVE_SMI_HANDLER))
|
|
acpi_disable_sci();
|
|
else
|
|
acpi_enable_sci();
|
|
}
|
|
|
|
post_code(POST_OS_BOOT);
|
|
}
|
|
|
|
BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY, soc_finalize, NULL);
|
|
BOOT_STATE_INIT_ENTRY(BS_PAYLOAD_LOAD, BS_ON_EXIT, soc_finalize, NULL);
|