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[PULL,22/22] ACPI: ARM: Present GIC version in MADT table

Message ID 1466173552-25482-23-git-send-email-peter.maydell@linaro.org (mailing list archive)
State New, archived
Headers show

Commit Message

Peter Maydell June 17, 2016, 2:25 p.m. UTC 
From: Shannon Zhao <shannon.zhao@linaro.org>

In ACPI 5.1 Errata, it adds GIC version in GIC distributor structure.
This is useful for guest kernel to identify which version GIC hardware
is. Update GIC distributor structure and present GIC version in MADT
table.

Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id: 1465960955-17388-1-git-send-email-zhaoshenglong@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/arm/virt-acpi-build.c    | 1 +
 include/hw/acpi/acpi-defs.h | 4 +++-
 2 files changed, 4 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index 1fa0581..28fc59c 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -523,6 +523,7 @@  build_madt(GArray *table_data, BIOSLinker *linker, VirtGuestInfo *guest_info)
     gicd->type = ACPI_APIC_GENERIC_DISTRIBUTOR;
     gicd->length = sizeof(*gicd);
     gicd->base_address = memmap[VIRT_GIC_DIST].base;
+    gicd->version = guest_info->gic_version;
 
     for (i = 0; i < guest_info->smp_cpus; i++) {
         AcpiMadtGenericInterrupt *gicc = acpi_data_push(table_data,
diff --git a/include/hw/acpi/acpi-defs.h b/include/hw/acpi/acpi-defs.h
index 850a962..ea9be0b 100644
--- a/include/hw/acpi/acpi-defs.h
+++ b/include/hw/acpi/acpi-defs.h
@@ -367,7 +367,9 @@  struct AcpiMadtGenericDistributor {
     uint32_t gic_id;
     uint64_t base_address;
     uint32_t global_irq_base;
-    uint32_t reserved2;
+    /* ACPI 5.1 Errata 1228 Present GIC version in MADT table */
+    uint8_t version;
+    uint8_t reserved2[3];
 } QEMU_PACKED;
 
 typedef struct AcpiMadtGenericDistributor AcpiMadtGenericDistributor;