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[Qemu-devel] [PATCH v5 09/20] hw/arm/virt-acpi-build: Generate GTDT tabl
From: |
Shannon Zhao |
Subject: |
[Qemu-devel] [PATCH v5 09/20] hw/arm/virt-acpi-build: Generate GTDT table |
Date: |
Wed, 15 Apr 2015 21:24:58 +0800 |
From: Shannon Zhao <address@hidden>
ACPI v5.1 defines GTDT for ARM devices as a place to describe timer
related information in the system. The Arch Timer interrupts must
be provided for GTDT.
Signed-off-by: Shannon Zhao <address@hidden>
Signed-off-by: Shannon Zhao <address@hidden>
---
hw/arm/virt-acpi-build.c | 30 ++++++++++++++++++++++++++++++
include/hw/acpi/acpi-defs.h | 37 +++++++++++++++++++++++++++++++++++++
2 files changed, 67 insertions(+)
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index 94cced0..7d37357 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -160,6 +160,33 @@ static void acpi_dsdt_add_virtio(Aml *scope, const MemMap
*virtio_mmio_memmap,
}
}
+/* GTDT */
+static void
+build_gtdt(GArray *table_data, GArray *linker, VirtGuestInfo *guest_info)
+{
+ int gtdt_start = table_data->len;
+ const struct AcpiGtdtInfo *info = guest_info->gtdt_info;
+ AcpiGenericTimerTable *gtdt;
+
+ gtdt = acpi_data_push(table_data, sizeof *gtdt);
+ /* The interrupt values are the same with the device tree when adding 16 */
+ gtdt->secure_el1_interrupt = info->timer_s_el1;
+ gtdt->secure_el1_flags = ACPI_EDGE_SENSITIVE;
+
+ gtdt->non_secure_el1_interrupt = info->timer_ns_el1;
+ gtdt->non_secure_el1_flags = ACPI_EDGE_SENSITIVE;
+
+ gtdt->virtual_timer_interrupt = info->timer_virt;
+ gtdt->virtual_timer_flags = ACPI_EDGE_SENSITIVE;
+
+ gtdt->non_secure_el2_interrupt = info->timer_ns_el2;
+ gtdt->non_secure_el2_flags = ACPI_EDGE_SENSITIVE;
+
+ build_header(linker, table_data,
+ (void *)(table_data->data + gtdt_start), "GTDT",
+ table_data->len - gtdt_start, 1);
+}
+
/* MADT */
static void
build_madt(GArray *table_data, GArray *linker, VirtGuestInfo *guest_info,
@@ -302,6 +329,9 @@ void virt_acpi_build(VirtGuestInfo *guest_info,
AcpiBuildTables *tables)
acpi_add_table(table_offsets, tables_blob);
build_madt(tables_blob, tables->linker, guest_info, &cpuinfo);
+ acpi_add_table(table_offsets, tables_blob);
+ build_gtdt(tables_blob, tables->linker, guest_info);
+
/* Cleanup memory that's no longer used. */
g_array_free(table_offsets, true);
}
diff --git a/include/hw/acpi/acpi-defs.h b/include/hw/acpi/acpi-defs.h
index 4092dc3..7fc0870 100644
--- a/include/hw/acpi/acpi-defs.h
+++ b/include/hw/acpi/acpi-defs.h
@@ -321,6 +321,43 @@ struct AcpiMadtGenericDistributor {
typedef struct AcpiMadtGenericDistributor AcpiMadtGenericDistributor;
/*
+ * Generic Timer Description Table (GTDT)
+ */
+
+#define ACPI_GTDT_INTERRUPT_MODE (1 << 0)
+#define ACPI_GTDT_INTERRUPT_POLARITY (1 << 1)
+#define ACPI_GTDT_ALWAYS_ON (1 << 2)
+
+/* Triggering */
+
+#define ACPI_LEVEL_SENSITIVE ((uint8_t) 0x00)
+#define ACPI_EDGE_SENSITIVE ((uint8_t) 0x01)
+
+/* Polarity */
+
+#define ACPI_ACTIVE_HIGH ((uint8_t) 0x00)
+#define ACPI_ACTIVE_LOW ((uint8_t) 0x01)
+#define ACPI_ACTIVE_BOTH ((uint8_t) 0x02)
+
+struct AcpiGenericTimerTable {
+ ACPI_TABLE_HEADER_DEF
+ uint64_t counter_block_addresss;
+ uint32_t reserved;
+ uint32_t secure_el1_interrupt;
+ uint32_t secure_el1_flags;
+ uint32_t non_secure_el1_interrupt;
+ uint32_t non_secure_el1_flags;
+ uint32_t virtual_timer_interrupt;
+ uint32_t virtual_timer_flags;
+ uint32_t non_secure_el2_interrupt;
+ uint32_t non_secure_el2_flags;
+ uint64_t counter_read_block_address;
+ uint32_t platform_timer_count;
+ uint32_t platform_timer_offset;
+} QEMU_PACKED;
+typedef struct AcpiGenericTimerTable AcpiGenericTimerTable;
+
+/*
* HPET Description Table
*/
struct Acpi20Hpet {
--
2.0.4
- [Qemu-devel] [PATCH v5 00/20] Generate ACPI v5.1 tables and expose them to guest over fw_cfg on ARM, Shannon Zhao, 2015/04/15
- [Qemu-devel] [PATCH v5 12/20] hw/arm/virt-acpi-build: Add PCIe info and generate MCFG table, Shannon Zhao, 2015/04/15
- [Qemu-devel] [PATCH v5 10/20] hw/arm/virt-acpi-build: Generate RSDT table, Shannon Zhao, 2015/04/15
- [Qemu-devel] [PATCH v5 16/20] hw/acpi/aml-build: Add aml_else() term, Shannon Zhao, 2015/04/15
- [Qemu-devel] [PATCH v5 09/20] hw/arm/virt-acpi-build: Generate GTDT table,
Shannon Zhao <=
- [Qemu-devel] [PATCH v5 13/20] hw/acpi/aml-build: Add ToUUID macro, Shannon Zhao, 2015/04/15
- Re: [Qemu-devel] [PATCH v5 13/20] hw/acpi/aml-build: Add ToUUID macro, Igor Mammedov, 2015/04/28
- Re: [Qemu-devel] [PATCH v5 13/20] hw/acpi/aml-build: Add ToUUID macro, Shannon Zhao, 2015/04/28
- Re: [Qemu-devel] [PATCH v5 13/20] hw/acpi/aml-build: Add ToUUID macro, Igor Mammedov, 2015/04/28
- Re: [Qemu-devel] [PATCH v5 13/20] hw/acpi/aml-build: Add ToUUID macro, Shannon Zhao, 2015/04/28
- Re: [Qemu-devel] [PATCH v5 13/20] hw/acpi/aml-build: Add ToUUID macro, Igor Mammedov, 2015/04/28
- Re: [Qemu-devel] [PATCH v5 13/20] hw/acpi/aml-build: Add ToUUID macro, Shannon Zhao, 2015/04/28
- Re: [Qemu-devel] [PATCH v5 13/20] hw/acpi/aml-build: Add ToUUID macro, Shannon Zhao, 2015/04/29
- Re: [Qemu-devel] [PATCH v5 13/20] hw/acpi/aml-build: Add ToUUID macro, Shannon Zhao, 2015/04/28
[Qemu-devel] [PATCH v5 14/20] hw/acpi/aml-build: Add aml_or() term, Shannon Zhao, 2015/04/15