From 1c81f5735af3e2356bb75482a58786a4f26d8300 Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Thu, 17 Jun 2021 13:24:37 +0100 Subject: hw/acpi: Provide function acpi_ghes_present() Allow code elsewhere in the system to check whether the ACPI GHES table is present, so it can determine whether it is OK to try to record an error by calling acpi_ghes_record_errors(). (We don't need to migrate the new 'present' field in AcpiGhesState, because it is set once at system initialization and doesn't change.) Signed-off-by: Peter Maydell Reviewed-by: Richard Henderson Reviewed-by: Dongjiu Geng Message-id: 20210603171259.27962-3-peter.maydell@linaro.org --- hw/acpi/ghes.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'hw/acpi/ghes.c') diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c index a4dac6b..a749b84 100644 --- a/hw/acpi/ghes.c +++ b/hw/acpi/ghes.c @@ -386,6 +386,8 @@ void acpi_ghes_add_fw_cfg(AcpiGhesState *ags, FWCfgState *s, /* Create a read-write fw_cfg file for Address */ fw_cfg_add_file_callback(s, ACPI_GHES_DATA_ADDR_FW_CFG_FILE, NULL, NULL, NULL, &(ags->ghes_addr_le), sizeof(ags->ghes_addr_le), false); + + ags->present = true; } int acpi_ghes_record_errors(uint8_t source_id, uint64_t physical_address) @@ -443,3 +445,18 @@ int acpi_ghes_record_errors(uint8_t source_id, uint64_t physical_address) return ret; } + +bool acpi_ghes_present(void) +{ + AcpiGedState *acpi_ged_state; + AcpiGhesState *ags; + + acpi_ged_state = ACPI_GED(object_resolve_path_type("", TYPE_ACPI_GED, + NULL)); + + if (!acpi_ged_state) { + return false; + } + ags = &acpi_ged_state->ghes_state; + return ags->present; +} -- cgit v1.1