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cpu/smm_module_loader.c: Fix up CPU index locally 

Don't pass the stub params to the mp_init code.

Change-Id: I070bc00ae5e5bceb6c5b90ea833cc057dd41f6cc
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64802
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Arthur Heymans 2022-05-30 14:39:45 +02:00 committed by Lean Sheng Tan
parent 71bc9f0eba
commit a804f9195e
3 changed files with 16 additions and 20 deletions
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13
src/cpu/x86/mp_init.c
View File

@ -744,16 +744,6 @@ static asmlinkage void smm_do_relocation(void *arg)
}
}
static void adjust_smm_apic_id_map(struct smm_loader_params *smm_params)
{
struct smm_stub_params *stub_params = smm_params->stub_params;
int i = 0;
for (struct device *dev = g_cpu_bus->children; dev; dev = dev->sibling)
if (dev->enabled)
stub_params->apic_id_to_cpu[i++] = dev->path.apic.initial_lapicid;
}
static enum cb_err install_relocation_handler(int num_cpus, size_t save_state_size)
{
if (CONFIG(X86_SMM_SKIP_RELOCATION_HANDLER))
@ -770,7 +760,6 @@ static enum cb_err install_relocation_handler(int num_cpus, size_t save_state_si
printk(BIOS_ERR, "%s: smm setup failed\n", __func__);
return CB_ERR;
}
adjust_smm_apic_id_map(&smm_params);
return CB_SUCCESS;
}
@ -796,8 +785,6 @@ static enum cb_err install_permanent_handler(int num_cpus, uintptr_t smbase,
if (smm_load_module(smbase, smsize, &smm_params))
return CB_ERR;
adjust_smm_apic_id_map(&smm_params);
return CB_SUCCESS;
}

21
src/cpu/x86/smm/smm_module_loader.c
View File

@ -5,7 +5,9 @@
#include <commonlib/helpers.h>
#include <commonlib/region.h>
#include <console/console.h>
#include <cpu/cpu.h>
#include <cpu/x86/smm.h>
#include <device/device.h>
#include <rmodule.h>
#include <stdio.h>
#include <string.h>
@ -267,12 +269,21 @@ static int smm_module_setup_stub(const uintptr_t smbase, const size_t smm_size,
stub_params->fxsave_area = (uintptr_t)fxsave_area;
stub_params->fxsave_area_size = FXSAVE_SIZE;
/* Initialize the APIC id to CPU number table to be 1:1 */
for (int i = 0; i < params->num_cpus; i++)
stub_params->apic_id_to_cpu[i] = i;
/* This runs on the BSP. All the APs are its siblings */
struct cpu_info *info = cpu_info();
if (!info || !info->cpu) {
printk(BIOS_ERR, "%s: Failed to find BSP struct device\n", __func__);
return -1;
}
int i = 0;
for (struct device *dev = info->cpu; dev; dev = dev->sibling)
if (dev->enabled)
stub_params->apic_id_to_cpu[i++] = dev->path.apic.initial_lapicid;
/* Allow the initiator to manipulate SMM stub parameters. */
params->stub_params = stub_params;
if (i != params->num_cpus) {
printk(BIOS_ERR, "%s: Failed to set up apic map correctly\n", __func__);
return -1;
}
printk(BIOS_DEBUG, "%s: stack_top = 0x%x\n", __func__, stub_params->stack_top);
printk(BIOS_DEBUG, "%s: per cpu stack_size = 0x%x\n", __func__,

2
src/include/cpu/x86/smm.h
View File

@ -156,8 +156,6 @@ struct smm_loader_params {
size_t num_concurrent_save_states;
smm_handler_t handler;
struct smm_stub_params *stub_params;
};
/* All of these return 0 on success, < 0 on failure. */