On Tue, Sep 24, 2019 at 11:21:51PM +0800, Heyi Guo wrote:
> Add SDEI table if SDEI is enabled, so that guest OS can get aware and
> utilize the interfaces.
>
> Signed-off-by: Heyi Guo <guoheyi@xxxxxxxxxx>
> Cc: Peter Maydell <peter.maydell@xxxxxxxxxx>
> Cc: Dave Martin <Dave.Martin@xxxxxxx>
> Cc: Marc Zyngier <marc.zyngier@xxxxxxx>
> Cc: Mark Rutland <mark.rutland@xxxxxxx>
> Cc: James Morse <james.morse@xxxxxxx>
> Cc: Shannon Zhao <shannon.zhaosl@xxxxxxxxx>
> Cc: "Michael S. Tsirkin" <mst@xxxxxxxxxx>
> Cc: Igor Mammedov <imammedo@xxxxxxxxxx>
> ---
> hw/arm/virt-acpi-build.c | 16 ++++++++++++++++
> include/hw/acpi/acpi-defs.h | 5 +++++
> 2 files changed, 21 insertions(+)
>
> diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
> index 6cdf156..1088214 100644
> --- a/hw/arm/virt-acpi-build.c
> +++ b/hw/arm/virt-acpi-build.c
> @@ -32,6 +32,7 @@
> #include "trace.h"
> #include "hw/core/cpu.h"
> #include "target/arm/cpu.h"
> +#include "target/arm/sdei.h"
> #include "hw/acpi/acpi-defs.h"
> #include "hw/acpi/acpi.h"
> #include "hw/nvram/fw_cfg.h"
> @@ -475,6 +476,16 @@ build_iort(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
> }
>
> static void
> +build_sdei(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
> +{
> + int sdei_start = table_data->len;
> +
> + (void)acpi_data_push(table_data, sizeof(AcpiSdei));
> + build_header(linker, table_data, (void *)(table_data->data + sdei_start),
> + "SDEI", table_data->len - sdei_start, 1, NULL, NULL);
> +}
> +
Please quote the relevant spec, earliest version that includes
this table, and chapter in that spec.
> +static void
> build_spcr(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
> {
> AcpiSerialPortConsoleRedirection *spcr;
> @@ -796,6 +807,11 @@ void virt_acpi_build(VirtMachineState *vms, AcpiBuildTables *tables)
> acpi_add_table(table_offsets, tables_blob);
> build_spcr(tables_blob, tables->linker, vms);
>
> + if (sdei_enabled) {
> + acpi_add_table(table_offsets, tables_blob);
> + build_sdei(tables_blob, tables->linker, vms);
> + }
> +
> if (ms->numa_state->num_nodes > 0) {
> acpi_add_table(table_offsets, tables_blob);
> build_srat(tables_blob, tables->linker, vms);
> diff --git a/include/hw/acpi/acpi-defs.h b/include/hw/acpi/acpi-defs.h
> index 57a3f58..0a2265d 100644
> --- a/include/hw/acpi/acpi-defs.h
> +++ b/include/hw/acpi/acpi-defs.h
> @@ -634,4 +634,9 @@ struct AcpiIortRC {
> } QEMU_PACKED;
> typedef struct AcpiIortRC AcpiIortRC;
>
> +struct AcpiSdei {
> + ACPI_TABLE_HEADER_DEF /* ACPI common table header */
> +} QEMU_PACKED;
> +typedef struct AcpiSdei AcpiSdei;
> +
> #endif
> --
> 1.8.3.1
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