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Signed-off-by: Shannon Zhao Acked-by: Julien Grall Acked-by: Wei Liu --- tools/libxl/libxl_arm_acpi.c | 84 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) diff --git a/tools/libxl/libxl_arm_acpi.c b/tools/libxl/libxl_arm_acpi.c index b2136fd..f593dab 100644 --- a/tools/libxl/libxl_arm_acpi.c +++ b/tools/libxl/libxl_arm_acpi.c @@ -227,6 +227,89 @@ static void make_acpi_gtdt(libxl__gc *gc, struct xc_dom_image *dom, acpitables[GTDT].size); } +static void make_acpi_madt_gicc(void *table, int nr_cpus, uint64_t gicc_base) +{ + int i; + struct acpi_madt_generic_interrupt *gicc = table; + + for (i = 0; i < nr_cpus; i++) { + gicc->header.type = ACPI_MADT_TYPE_GENERIC_INTERRUPT; + gicc->header.length = ACPI_MADT_GICC_SIZE_v5; + gicc->base_address = gicc_base; + gicc->cpu_interface_number = i; + gicc->arm_mpidr = libxl__compute_mpdir(i); + gicc->uid = i; + gicc->flags = ACPI_MADT_ENABLED; + gicc = table + ACPI_MADT_GICC_SIZE_v5; + } +} + +static void make_acpi_madt_gicd(void *table, uint64_t gicd_base, + uint8_t gic_version) +{ + struct acpi_madt_generic_distributor *gicd = table; + + gicd->header.type = ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR; + gicd->header.length = sizeof(*gicd); + gicd->base_address = gicd_base; + /* This version field has no meaning before ACPI 5.1 errata. */ + gicd->version = gic_version; +} + +static void make_acpi_madt_gicr(void *table, uint64_t gicr_base, + uint64_t gicr_size) +{ + struct acpi_madt_generic_redistributor *gicr = table; + + gicr->header.type = ACPI_MADT_TYPE_GENERIC_REDISTRIBUTOR; + gicr->header.length = sizeof(*gicr); + gicr->base_address = gicr_base; + gicr->length = gicr_size; +} + +static int make_acpi_madt(libxl__gc *gc, struct xc_dom_image *dom, + libxl_domain_build_info *info, + struct acpitable acpitables[]) +{ + uint64_t offset = acpitables[MADT].addr - GUEST_ACPI_BASE; + void *table = dom->acpi_modules[0].data + offset; + struct acpi_table_madt *madt = table; + int rc = 0; + + switch (info->arch_arm.gic_version) { + case LIBXL_GIC_VERSION_V2: + table += sizeof(struct acpi_table_madt); + make_acpi_madt_gicc(table, info->max_vcpus, GUEST_GICC_BASE); + + table += ACPI_MADT_GICC_SIZE_v5 * info->max_vcpus; + make_acpi_madt_gicd(table, GUEST_GICD_BASE, ACPI_MADT_GIC_VERSION_V2); + break; + case LIBXL_GIC_VERSION_V3: + table += sizeof(struct acpi_table_madt); + make_acpi_madt_gicc(table, info->max_vcpus, 0); + + table += ACPI_MADT_GICC_SIZE_v5 * info->max_vcpus; + make_acpi_madt_gicd(table, GUEST_GICV3_GICD_BASE, + ACPI_MADT_GIC_VERSION_V3); + + table += sizeof(struct acpi_madt_generic_distributor); + make_acpi_madt_gicr(table, GUEST_GICV3_GICR0_BASE, + GUEST_GICV3_GICR0_SIZE); + break; + default: + LOG(ERROR, "Unknown GIC version"); + rc = ERROR_FAIL; + goto out; + } + + make_acpi_header(&madt->header, "APIC", acpitables[MADT].size, 3); + calculate_checksum(madt, offsetof(struct acpi_table_header, checksum), + acpitables[MADT].size); + +out: + return rc; +} + int libxl__prepare_acpi(libxl__gc *gc, libxl_domain_build_info *info, struct xc_dom_image *dom) { @@ -254,6 +337,7 @@ int libxl__prepare_acpi(libxl__gc *gc, libxl_domain_build_info *info, make_acpi_rsdp(gc, dom, acpitables); make_acpi_xsdt(gc, dom, acpitables); make_acpi_gtdt(gc, dom, acpitables); + rc = make_acpi_madt(gc, dom, info, acpitables); out: return rc;