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authorAndrew Jones <drjones@redhat.com>2017-01-09 11:40:23 +0000
committerPeter Maydell <peter.maydell@linaro.org>2017-01-09 11:40:23 +0000
commit8dd845d3c434cf2c799e0f86a1b53b33057b61ab (patch)
tree6c7f79686f56bd4dc981ab1699d5d0dd2fcad0f4
parentaf1f60a4022664b0169f9d10a3f7d732e8571617 (diff)
downloadqemu-arm-8dd845d3c434cf2c799e0f86a1b53b33057b61ab.tar.gz
hw/arm/virt-acpi-build: Don't incorrectly claim architectural timer to be edge-triggered
This is the ACPI equivalent to "hw/arm/virt: Don't incorrectly claim architectural timer to be edge-triggered" which fixes the DT for machine types 2.9 and later. Signed-off-by: Andrew Jones <drjones@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Message-id: 20170102200153.28864-15-drjones@redhat.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r--hw/arm/virt-acpi-build.c20
-rw-r--r--include/hw/acpi/acpi-defs.h1
2 files changed, 15 insertions, 6 deletions
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index 44b5234636..085a611173 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -535,25 +535,33 @@ build_mcfg(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
/* GTDT */
static void
-build_gtdt(GArray *table_data, BIOSLinker *linker)
+build_gtdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
{
+ VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms);
int gtdt_start = table_data->len;
AcpiGenericTimerTable *gtdt;
+ uint32_t irqflags;
+
+ if (vmc->claim_edge_triggered_timers) {
+ irqflags = ACPI_GTDT_INTERRUPT_MODE_EDGE;
+ } else {
+ irqflags = ACPI_GTDT_INTERRUPT_MODE_LEVEL;
+ }
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 = cpu_to_le32(ARCH_TIMER_S_EL1_IRQ + 16);
- gtdt->secure_el1_flags = cpu_to_le32(ACPI_GTDT_INTERRUPT_MODE_EDGE);
+ gtdt->secure_el1_flags = cpu_to_le32(irqflags);
gtdt->non_secure_el1_interrupt = cpu_to_le32(ARCH_TIMER_NS_EL1_IRQ + 16);
- gtdt->non_secure_el1_flags = cpu_to_le32(ACPI_GTDT_INTERRUPT_MODE_EDGE |
+ gtdt->non_secure_el1_flags = cpu_to_le32(irqflags |
ACPI_GTDT_CAP_ALWAYS_ON);
gtdt->virtual_timer_interrupt = cpu_to_le32(ARCH_TIMER_VIRT_IRQ + 16);
- gtdt->virtual_timer_flags = cpu_to_le32(ACPI_GTDT_INTERRUPT_MODE_EDGE);
+ gtdt->virtual_timer_flags = cpu_to_le32(irqflags);
gtdt->non_secure_el2_interrupt = cpu_to_le32(ARCH_TIMER_NS_EL2_IRQ + 16);
- gtdt->non_secure_el2_flags = cpu_to_le32(ACPI_GTDT_INTERRUPT_MODE_EDGE);
+ gtdt->non_secure_el2_flags = cpu_to_le32(irqflags);
build_header(linker, table_data,
(void *)(table_data->data + gtdt_start), "GTDT",
@@ -736,7 +744,7 @@ void virt_acpi_build(VirtMachineState *vms, AcpiBuildTables *tables)
build_madt(tables_blob, tables->linker, vms);
acpi_add_table(table_offsets, tables_blob);
- build_gtdt(tables_blob, tables->linker);
+ build_gtdt(tables_blob, tables->linker, vms);
acpi_add_table(table_offsets, tables_blob);
build_mcfg(tables_blob, tables->linker, vms);
diff --git a/include/hw/acpi/acpi-defs.h b/include/hw/acpi/acpi-defs.h
index d15b7e5cd3..d43ec005cb 100644
--- a/include/hw/acpi/acpi-defs.h
+++ b/include/hw/acpi/acpi-defs.h
@@ -428,6 +428,7 @@ typedef struct AcpiMadtGenericTranslator AcpiMadtGenericTranslator;
/*
* Generic Timer Description Table (GTDT)
*/
+#define ACPI_GTDT_INTERRUPT_MODE_LEVEL (0 << 0)
#define ACPI_GTDT_INTERRUPT_MODE_EDGE (1 << 0)
#define ACPI_GTDT_CAP_ALWAYS_ON (1 << 2)