diff options
| -rw-r--r-- | src/cpu/x86/smm/smm_module_handler.c | 7 | ||||
| -rw-r--r-- | src/cpu/x86/smm/smm_module_loader.c | 12 | ||||
| -rw-r--r-- | src/include/console/cbmem_console.h | 6 | ||||
| -rw-r--r-- | src/include/cpu/x86/smm.h | 2 | ||||
| -rw-r--r-- | src/lib/Makefile.inc | 3 | ||||
| -rw-r--r-- | src/lib/cbmem_console.c | 7 |
6 files changed, 36 insertions, 1 deletions
diff --git a/src/cpu/x86/smm/smm_module_handler.c b/src/cpu/x86/smm/smm_module_handler.c index cab691d9747b..bd4149a79724 100644 --- a/src/cpu/x86/smm/smm_module_handler.c +++ b/src/cpu/x86/smm/smm_module_handler.c @@ -1,6 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0-only */ #include <arch/io.h> +#include <console/cbmem_console.h> #include <console/console.h> #include <commonlib/region.h> #include <cpu/x86/smm.h> @@ -48,6 +49,12 @@ static void smi_release_lock(void) ); } +void smm_get_cbmemc_buffer(void **buffer_out, size_t *size_out) +{ + *buffer_out = smm_runtime.cbmemc; + *size_out = smm_runtime.cbmemc_size; +} + void io_trap_handler(int smif) { /* If a handler function handled a given IO trap, it diff --git a/src/cpu/x86/smm/smm_module_loader.c b/src/cpu/x86/smm/smm_module_loader.c index 14e2aa3b7433..17c6779122f7 100644 --- a/src/cpu/x86/smm/smm_module_loader.c +++ b/src/cpu/x86/smm/smm_module_loader.c @@ -5,6 +5,7 @@ #include <stdint.h> #include <string.h> #include <rmodule.h> +#include <cbmem.h> #include <cpu/x86/smm.h> #include <commonlib/helpers.h> #include <console/console.h> @@ -479,6 +480,7 @@ int smm_load_module(const uintptr_t smram_base, const size_t smram_size, void *fxsave_area; size_t total_size = 0; uintptr_t base; /* The base for the permanent handler */ + const struct cbmem_entry *cbmemc; if (CONFIG(SMM_ASEG)) return smm_load_module_aseg(smram_base, smram_size, params); @@ -557,6 +559,14 @@ int smm_load_module(const uintptr_t smram_base, const size_t smram_size, handler_mod_params->num_cpus = params->num_cpus; handler_mod_params->gnvs_ptr = (uintptr_t)acpi_get_gnvs(); + if (CONFIG(CONSOLE_CBMEM) && (cbmemc = cbmem_entry_find(CBMEM_ID_CONSOLE))) { + handler_mod_params->cbmemc = cbmem_entry_start(cbmemc); + handler_mod_params->cbmemc_size = cbmem_entry_size(cbmemc); + } else { + handler_mod_params->cbmemc = 0; + handler_mod_params->cbmemc_size = 0; + } + printk(BIOS_DEBUG, "%s: smram_start: 0x%lx\n", __func__, smram_base); printk(BIOS_DEBUG, "%s: smram_end: %lx\n", __func__, smram_base + smram_size); printk(BIOS_DEBUG, "%s: handler start %p\n", @@ -577,6 +587,8 @@ int smm_load_module(const uintptr_t smram_base, const size_t smram_size, printk(BIOS_DEBUG, "%s: per_cpu_save_state_size = 0x%x\n", __func__, handler_mod_params->save_state_size); printk(BIOS_DEBUG, "%s: num_cpus = 0x%x\n", __func__, handler_mod_params->num_cpus); + printk(BIOS_DEBUG, "%s: cbmemc = %p, cbmemc_size = %#x\n", __func__, + handler_mod_params->cbmemc, handler_mod_params->cbmemc_size); printk(BIOS_DEBUG, "%s: total_save_state_size = 0x%x\n", __func__, (handler_mod_params->save_state_size * handler_mod_params->num_cpus)); diff --git a/src/include/console/cbmem_console.h b/src/include/console/cbmem_console.h index 4f03a45e7414..9a814b9a54fd 100644 --- a/src/include/console/cbmem_console.h +++ b/src/include/console/cbmem_console.h @@ -10,7 +10,8 @@ void cbmemc_tx_byte(unsigned char data); #define __CBMEM_CONSOLE_ENABLE__ (CONFIG(CONSOLE_CBMEM) && \ (ENV_RAMSTAGE || ENV_SEPARATE_VERSTAGE || ENV_POSTCAR || \ - ENV_ROMSTAGE || (ENV_BOOTBLOCK && CONFIG(BOOTBLOCK_CONSOLE)))) + ENV_ROMSTAGE || (ENV_BOOTBLOCK && CONFIG(BOOTBLOCK_CONSOLE)) || \ + (ENV_SMM && CONFIG(DEBUG_SMI)))) #if __CBMEM_CONSOLE_ENABLE__ static inline void __cbmemc_init(void) { cbmemc_init(); } @@ -28,3 +29,6 @@ void cbmemc_copy_in(void *buffer, size_t size); void cbmem_dump_console_to_uart(void); void cbmem_dump_console(void); #endif + +/* Retrieves the location of the CBMEM Console buffer in SMM mode */ +void smm_get_cbmemc_buffer(void **buffer_out, size_t *size_out); diff --git a/src/include/cpu/x86/smm.h b/src/include/cpu/x86/smm.h index 8ea8336a2d12..28d95e11a5c4 100644 --- a/src/include/cpu/x86/smm.h +++ b/src/include/cpu/x86/smm.h @@ -61,6 +61,8 @@ struct smm_runtime { u32 save_state_size; u32 num_cpus; u32 gnvs_ptr; + u32 cbmemc_size; + void *cbmemc; uintptr_t save_state_top[CONFIG_MAX_CPUS]; } __packed; diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc index 5e3ce50e7f5e..f3da503b8be8 100644 --- a/src/lib/Makefile.inc +++ b/src/lib/Makefile.inc @@ -220,6 +220,9 @@ smm-y += delay.c smm-y += fmap.c smm-y += cbfs.c memcmp.c smm-$(CONFIG_GENERIC_UDELAY) += timer.c +ifeq ($(CONFIG_DEBUG_SMI),y) +smm-$(CONFIG_CONSOLE_CBMEM) += cbmem_console.c +endif bootblock-y += version.c romstage-y += version.c diff --git a/src/lib/cbmem_console.c b/src/lib/cbmem_console.c index 0c5609573224..783f336b9c0b 100644 --- a/src/lib/cbmem_console.c +++ b/src/lib/cbmem_console.c @@ -84,6 +84,13 @@ void cbmemc_init(void) if (ENV_ROMSTAGE_OR_BEFORE) { /* Pre-RAM environments use special buffer placed by linker script. */ init_console_ptr(_preram_cbmem_console, REGION_SIZE(preram_cbmem_console)); + } else if (ENV_SMM) { + void *cbmemc = NULL; + size_t cbmemc_size = 0; + + smm_get_cbmemc_buffer(&cbmemc, &cbmemc_size); + + init_console_ptr(cbmemc, cbmemc_size); } else { /* Post-RAM uses static (BSS) buffer before CBMEM is reinitialized. */ init_console_ptr(static_console, sizeof(static_console)); |