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coreboot-kgpe-d16/src/acpi/gnvs.c

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ACPI: Add framework for GNVS initialisation Provide common initialisation point for setting up GNVS structure before first SMI is triggered. Change-Id: Iccad533c3824d70f6cbae52cc8dd79f142ece944 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/42423 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-06-17 00:04:44 +02:00
/* SPDX-License-Identifier: GPL-2.0-only */
#include <acpi/acpi_gnvs.h>
#include <acpi/acpigen.h>
#include <cbmem.h>
#include <console/console.h>
ACPI: Clean up GNVS initialisation With the common <soc/nvs.h> approach platform does not need to implement the common accessors or sizeof() function. Change-Id: I1050a252f765c763c1ae2d1610cbfb0d973ba026 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/49793 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-01-11 17:40:37 +01:00
#include <soc/nvs.h>
#include <stdint.h>
ACPI: Add framework for GNVS initialisation Provide common initialisation point for setting up GNVS structure before first SMI is triggered. Change-Id: Iccad533c3824d70f6cbae52cc8dd79f142ece944 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/42423 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-06-17 00:04:44 +02:00
#include <string.h>
#include <types.h>
ACPI: Clean up GNVS initialisation With the common <soc/nvs.h> approach platform does not need to implement the common accessors or sizeof() function. Change-Id: I1050a252f765c763c1ae2d1610cbfb0d973ba026 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/49793 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-01-11 17:40:37 +01:00
static struct global_nvs *gnvs;
ACPI: Refactor use of global and device NVS After ChromeOS NVS was moved to a separate allocation and the use of multiple OperationRegions, maintaining the fixed offsets is not necessary. Use actual structure size for OperationRegions, but align the allocations to 8 bytes or sizeof(uint64_t). Change-Id: I9c73b7c44d234af42c571b23187b924ca2c3894a Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51639 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-03-16 18:02:26 +01:00
static void *dnvs;
ACPI: Add framework for GNVS initialisation Provide common initialisation point for setting up GNVS structure before first SMI is triggered. Change-Id: Iccad533c3824d70f6cbae52cc8dd79f142ece944 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/42423 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-06-17 00:04:44 +02:00
ACPI: Clean up GNVS initialisation With the common <soc/nvs.h> approach platform does not need to implement the common accessors or sizeof() function. Change-Id: I1050a252f765c763c1ae2d1610cbfb0d973ba026 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/49793 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-01-11 17:40:37 +01:00
void acpi_create_gnvs(void)
ACPI: Add framework for GNVS initialisation Provide common initialisation point for setting up GNVS structure before first SMI is triggered. Change-Id: Iccad533c3824d70f6cbae52cc8dd79f142ece944 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/42423 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-06-17 00:04:44 +02:00
{
ACPI: Refactor use of global and device NVS After ChromeOS NVS was moved to a separate allocation and the use of multiple OperationRegions, maintaining the fixed offsets is not necessary. Use actual structure size for OperationRegions, but align the allocations to 8 bytes or sizeof(uint64_t). Change-Id: I9c73b7c44d234af42c571b23187b924ca2c3894a Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51639 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-03-16 18:02:26 +01:00
const size_t gnvs_size = ALIGN_UP(sizeof(struct global_nvs), sizeof(uint64_t));
const size_t dnvs_size = ALIGN_UP(size_of_dnvs(), sizeof(uint64_t));
ACPI: Add framework for GNVS initialisation Provide common initialisation point for setting up GNVS structure before first SMI is triggered. Change-Id: Iccad533c3824d70f6cbae52cc8dd79f142ece944 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/42423 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-06-17 00:04:44 +02:00
ACPI: Do minor improvements on GNVS Reorder the support functions to make a bit more sense, allocations happen first. Add related comments about the bootstate these are to be called from. Change-Id: Ie6d66f6e4c30519dee4520f6e9dec3c8c678ab57 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/50003 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-01-27 09:13:33 +01:00
gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS);
if (gnvs)
ACPI: Clean up GNVS initialisation With the common <soc/nvs.h> approach platform does not need to implement the common accessors or sizeof() function. Change-Id: I1050a252f765c763c1ae2d1610cbfb0d973ba026 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/49793 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-01-11 17:40:37 +01:00
return;
ACPI: Add framework for GNVS initialisation Provide common initialisation point for setting up GNVS structure before first SMI is triggered. Change-Id: Iccad533c3824d70f6cbae52cc8dd79f142ece944 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/42423 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-06-17 00:04:44 +02:00
ACPI: Refactor use of global and device NVS After ChromeOS NVS was moved to a separate allocation and the use of multiple OperationRegions, maintaining the fixed offsets is not necessary. Use actual structure size for OperationRegions, but align the allocations to 8 bytes or sizeof(uint64_t). Change-Id: I9c73b7c44d234af42c571b23187b924ca2c3894a Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51639 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-03-16 18:02:26 +01:00
/* Allocate for both GNVS and DNVS OpRegions. */
gnvs = cbmem_add(CBMEM_ID_ACPI_GNVS, gnvs_size + dnvs_size);
ACPI: Add framework for GNVS initialisation Provide common initialisation point for setting up GNVS structure before first SMI is triggered. Change-Id: Iccad533c3824d70f6cbae52cc8dd79f142ece944 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/42423 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-06-17 00:04:44 +02:00
if (!gnvs)
ACPI: Clean up GNVS initialisation With the common <soc/nvs.h> approach platform does not need to implement the common accessors or sizeof() function. Change-Id: I1050a252f765c763c1ae2d1610cbfb0d973ba026 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/49793 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-01-11 17:40:37 +01:00
return;
ACPI: Add framework for GNVS initialisation Provide common initialisation point for setting up GNVS structure before first SMI is triggered. Change-Id: Iccad533c3824d70f6cbae52cc8dd79f142ece944 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/42423 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-06-17 00:04:44 +02:00
ACPI: Refactor use of global and device NVS After ChromeOS NVS was moved to a separate allocation and the use of multiple OperationRegions, maintaining the fixed offsets is not necessary. Use actual structure size for OperationRegions, but align the allocations to 8 bytes or sizeof(uint64_t). Change-Id: I9c73b7c44d234af42c571b23187b924ca2c3894a Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51639 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-03-16 18:02:26 +01:00
memset(gnvs, 0, gnvs_size + dnvs_size);
if (dnvs_size)
dnvs = (char *)gnvs + gnvs_size;
ACPI: Add framework for GNVS initialisation Provide common initialisation point for setting up GNVS structure before first SMI is triggered. Change-Id: Iccad533c3824d70f6cbae52cc8dd79f142ece944 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/42423 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-06-17 00:04:44 +02:00
if (CONFIG(CONSOLE_CBMEM))
ACPI: Clean up GNVS initialisation With the common <soc/nvs.h> approach platform does not need to implement the common accessors or sizeof() function. Change-Id: I1050a252f765c763c1ae2d1610cbfb0d973ba026 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/49793 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-01-11 17:40:37 +01:00
gnvs->cbmc = (uintptr_t)cbmem_find(CBMEM_ID_CONSOLE);
ACPI: Add framework for GNVS initialisation Provide common initialisation point for setting up GNVS structure before first SMI is triggered. Change-Id: Iccad533c3824d70f6cbae52cc8dd79f142ece944 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/42423 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-06-17 00:04:44 +02:00
}
ACPI: Do minor improvements on GNVS Reorder the support functions to make a bit more sense, allocations happen first. Add related comments about the bootstate these are to be called from. Change-Id: Ie6d66f6e4c30519dee4520f6e9dec3c8c678ab57 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/50003 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-01-27 09:13:33 +01:00
void *acpi_get_gnvs(void)
{
if (gnvs)
return gnvs;
gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS);
if (gnvs)
return gnvs;
printk(BIOS_ERR, "Unable to locate Global NVS\n");
return NULL;
}
ACPI: Separate device_nvs_t Remove typedef device_nvs_t and move struct device_nvs outside of global_nvs. Also remove padding and the reserve for chromeos_acpi_t. Change-Id: I878746b1f0f9152a27dc58e373d58115e2dff22c Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/49476 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2021-01-12 16:46:30 +01:00
void *acpi_get_device_nvs(void)
{
ACPI: Refactor use of global and device NVS After ChromeOS NVS was moved to a separate allocation and the use of multiple OperationRegions, maintaining the fixed offsets is not necessary. Use actual structure size for OperationRegions, but align the allocations to 8 bytes or sizeof(uint64_t). Change-Id: I9c73b7c44d234af42c571b23187b924ca2c3894a Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51639 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-03-16 18:02:26 +01:00
return dnvs;
ACPI: Separate device_nvs_t Remove typedef device_nvs_t and move struct device_nvs outside of global_nvs. Also remove padding and the reserve for chromeos_acpi_t. Change-Id: I878746b1f0f9152a27dc58e373d58115e2dff22c Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/49476 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2021-01-12 16:46:30 +01:00
}
ACPI: Do minor improvements on GNVS Reorder the support functions to make a bit more sense, allocations happen first. Add related comments about the bootstate these are to be called from. Change-Id: Ie6d66f6e4c30519dee4520f6e9dec3c8c678ab57 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/50003 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-01-27 09:13:33 +01:00
/* Implemented under platform. */
__weak void soc_fill_gnvs(struct global_nvs *gnvs_) { }
__weak void mainboard_fill_gnvs(struct global_nvs *gnvs_) { }
ACPI: Refactor use of global and device NVS After ChromeOS NVS was moved to a separate allocation and the use of multiple OperationRegions, maintaining the fixed offsets is not necessary. Use actual structure size for OperationRegions, but align the allocations to 8 bytes or sizeof(uint64_t). Change-Id: I9c73b7c44d234af42c571b23187b924ca2c3894a Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51639 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-03-16 18:02:26 +01:00
__weak size_t size_of_dnvs(void) { return 0; }
ACPI: Do minor improvements on GNVS Reorder the support functions to make a bit more sense, allocations happen first. Add related comments about the bootstate these are to be called from. Change-Id: Ie6d66f6e4c30519dee4520f6e9dec3c8c678ab57 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/50003 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-01-27 09:13:33 +01:00
/* Called from write_acpi_tables() only on normal boot path. */
ACPI: Add common acpi_fill_gnvs() Change-Id: I515e830808a95eee3ce72b16fd26da6ec79dac85 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/48718 Reviewed-by: Lance Zhao Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-06-30 10:41:47 +02:00
void acpi_fill_gnvs(void)
{
ACPI: Refactor use of global and device NVS After ChromeOS NVS was moved to a separate allocation and the use of multiple OperationRegions, maintaining the fixed offsets is not necessary. Use actual structure size for OperationRegions, but align the allocations to 8 bytes or sizeof(uint64_t). Change-Id: I9c73b7c44d234af42c571b23187b924ca2c3894a Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51639 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-03-16 18:02:26 +01:00
const struct opregion gnvs_op = OPREGION("GNVS", SYSTEMMEMORY, (uintptr_t)gnvs,
sizeof(struct global_nvs));
const struct opregion dnvs_op = OPREGION("DNVS", SYSTEMMEMORY, (uintptr_t)dnvs,
size_of_dnvs());
ACPI: Use acpigen for NVS OperationRegions The intermediate base and length are not required in ASL. Change-Id: I0c72e2e4f7ec597adc16dbdec1fd7bbe4e41bfd6 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51637 Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Lance Zhao Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-03-16 12:02:34 +01:00
ACPI: Add common acpi_fill_gnvs() Change-Id: I515e830808a95eee3ce72b16fd26da6ec79dac85 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/48718 Reviewed-by: Lance Zhao Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-06-30 10:41:47 +02:00
if (!gnvs)
return;
soc_fill_gnvs(gnvs);
mainboard_fill_gnvs(gnvs);
ACPI: Have single call-site for acpi_inject_nvsa() Change-Id: I61a9b07ec3fdaeef0622df82e106405f01e89a9e Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/48719 Reviewed-by: Lance Zhao Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-06-30 10:42:52 +02:00
acpigen_write_scope("\\");
ACPI: Use acpigen for NVS OperationRegions The intermediate base and length are not required in ASL. Change-Id: I0c72e2e4f7ec597adc16dbdec1fd7bbe4e41bfd6 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51637 Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Lance Zhao Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-03-16 12:02:34 +01:00
acpigen_write_opregion(&gnvs_op);
ACPI: Refactor use of global and device NVS After ChromeOS NVS was moved to a separate allocation and the use of multiple OperationRegions, maintaining the fixed offsets is not necessary. Use actual structure size for OperationRegions, but align the allocations to 8 bytes or sizeof(uint64_t). Change-Id: I9c73b7c44d234af42c571b23187b924ca2c3894a Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51639 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-03-16 18:02:26 +01:00
if (dnvs)
ACPI: Use acpigen for NVS OperationRegions The intermediate base and length are not required in ASL. Change-Id: I0c72e2e4f7ec597adc16dbdec1fd7bbe4e41bfd6 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51637 Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Lance Zhao Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-03-16 12:02:34 +01:00
acpigen_write_opregion(&dnvs_op);
acpigen_pop_len();
ACPI: Add common acpi_fill_gnvs() Change-Id: I515e830808a95eee3ce72b16fd26da6ec79dac85 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/48718 Reviewed-by: Lance Zhao Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-06-30 10:41:47 +02:00
}
ACPI: Add acpi_reset_gnvs_for_wake() With chipset_power_state filled in romstage CBMEM hooks and GNVS allocated early in ramstage, GNVS wake source is now also filled for normal boot path. Change-Id: I2d44770392d14d2d6e22cc98df9d1751c8717ff3 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/50004 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2021-01-15 04:58:42 +01:00
int acpi_reset_gnvs_for_wake(struct global_nvs **gnvs_)
{
if (!gnvs)
return -1;
/* Set unknown wake source */
gnvs->pm1i = -1;
gnvs->gpei = -1;
*gnvs_ = gnvs;
return 0;
}
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