#include "qemu/osdep.h"
#include "qapi/error.h"
-#include "qemu-common.h"
+#include "qemu/module.h"
#include "cpu.h"
#include "hw/arm/xlnx-zynqmp.h"
#include "hw/intc/arm_gic_common.h"
#define ARM_PHYS_TIMER_PPI 30
#define ARM_VIRT_TIMER_PPI 27
+#define ARM_HYP_TIMER_PPI 26
+#define ARM_SEC_TIMER_PPI 29
+#define GIC_MAINTENANCE_PPI 25
#define GEM_REVISION 0x40070106
#define GIC_BASE_ADDR 0xf9000000
#define GIC_DIST_ADDR 0xf9010000
#define GIC_CPU_ADDR 0xf9020000
+#define GIC_VIFACE_ADDR 0xf9040000
+#define GIC_VCPU_ADDR 0xf9060000
#define SATA_INTR 133
#define SATA_ADDR 0xFD0C0000
#define SATA_NUM_PORTS 2
+#define QSPI_ADDR 0xff0f0000
+#define LQSPI_ADDR 0xc0000000
+#define QSPI_IRQ 15
+
#define DP_ADDR 0xfd4a0000
#define DP_IRQ 113
#define DPDMA_ADDR 0xfd4c0000
#define DPDMA_IRQ 116
+#define IPI_ADDR 0xFF300000
+#define IPI_IRQ 64
+
+#define RTC_ADDR 0xffa60000
+#define RTC_IRQ 26
+
+#define SDHCI_CAPABILITIES 0x280737ec6481 /* Datasheet: UG1085 (v1.7) */
+
static const uint64_t gem_addr[XLNX_ZYNQMP_NUM_GEMS] = {
0xFF0B0000, 0xFF0C0000, 0xFF0D0000, 0xFF0E0000,
};
19, 20,
};
+static const uint64_t gdma_ch_addr[XLNX_ZYNQMP_NUM_GDMA_CH] = {
+ 0xFD500000, 0xFD510000, 0xFD520000, 0xFD530000,
+ 0xFD540000, 0xFD550000, 0xFD560000, 0xFD570000
+};
+
+static const int gdma_ch_intr[XLNX_ZYNQMP_NUM_GDMA_CH] = {
+ 124, 125, 126, 127, 128, 129, 130, 131
+};
+
+static const uint64_t adma_ch_addr[XLNX_ZYNQMP_NUM_ADMA_CH] = {
+ 0xFFA80000, 0xFFA90000, 0xFFAA0000, 0xFFAB0000,
+ 0xFFAC0000, 0xFFAD0000, 0xFFAE0000, 0xFFAF0000
+};
+
+static const int adma_ch_intr[XLNX_ZYNQMP_NUM_ADMA_CH] = {
+ 77, 78, 79, 80, 81, 82, 83, 84
+};
+
typedef struct XlnxZynqMPGICRegion {
int region_index;
uint32_t address;
+ uint32_t offset;
+ bool virt;
} XlnxZynqMPGICRegion;
static const XlnxZynqMPGICRegion xlnx_zynqmp_gic_regions[] = {
- { .region_index = 0, .address = GIC_DIST_ADDR, },
- { .region_index = 1, .address = GIC_CPU_ADDR, },
+ /* Distributor */
+ {
+ .region_index = 0,
+ .address = GIC_DIST_ADDR,
+ .offset = 0,
+ .virt = false
+ },
+
+ /* CPU interface */
+ {
+ .region_index = 1,
+ .address = GIC_CPU_ADDR,
+ .offset = 0,
+ .virt = false
+ },
+ {
+ .region_index = 1,
+ .address = GIC_CPU_ADDR + 0x10000,
+ .offset = 0x1000,
+ .virt = false
+ },
+
+ /* Virtual interface */
+ {
+ .region_index = 2,
+ .address = GIC_VIFACE_ADDR,
+ .offset = 0,
+ .virt = true
+ },
+
+ /* Virtual CPU interface */
+ {
+ .region_index = 3,
+ .address = GIC_VCPU_ADDR,
+ .offset = 0,
+ .virt = true
+ },
+ {
+ .region_index = 3,
+ .address = GIC_VCPU_ADDR + 0x10000,
+ .offset = 0x1000,
+ .virt = true
+ },
};
static inline int arm_gic_ppi_index(int cpu_nr, int ppi_index)
{
Error *err = NULL;
int i;
+ int num_rpus = MIN(smp_cpus - XLNX_ZYNQMP_NUM_APU_CPUS, XLNX_ZYNQMP_NUM_RPU_CPUS);
+
+ if (num_rpus <= 0) {
+ /* Don't create rpu-cluster object if there's nothing to put in it */
+ return;
+ }
+
+ object_initialize_child(OBJECT(s), "rpu-cluster", &s->rpu_cluster,
+ sizeof(s->rpu_cluster), TYPE_CPU_CLUSTER,
+ &error_abort, NULL);
+ qdev_prop_set_uint32(DEVICE(&s->rpu_cluster), "cluster-id", 1);
- for (i = 0; i < XLNX_ZYNQMP_NUM_RPU_CPUS; i++) {
+ for (i = 0; i < num_rpus; i++) {
char *name;
- object_initialize(&s->rpu_cpu[i], sizeof(s->rpu_cpu[i]),
- "cortex-r5-" TYPE_ARM_CPU);
- object_property_add_child(OBJECT(s), "rpu-cpu[*]",
- OBJECT(&s->rpu_cpu[i]), &error_abort);
+ object_initialize_child(OBJECT(&s->rpu_cluster), "rpu-cpu[*]",
+ &s->rpu_cpu[i], sizeof(s->rpu_cpu[i]),
+ "cortex-r5f-" TYPE_ARM_CPU, &error_abort,
+ NULL);
name = object_get_canonical_path_component(OBJECT(&s->rpu_cpu[i]));
if (strcmp(name, boot_cpu)) {
return;
}
}
+
+ qdev_init_nofail(DEVICE(&s->rpu_cluster));
}
static void xlnx_zynqmp_init(Object *obj)
{
XlnxZynqMPState *s = XLNX_ZYNQMP(obj);
int i;
-
- for (i = 0; i < XLNX_ZYNQMP_NUM_APU_CPUS; i++) {
- object_initialize(&s->apu_cpu[i], sizeof(s->apu_cpu[i]),
- "cortex-a53-" TYPE_ARM_CPU);
- object_property_add_child(obj, "apu-cpu[*]", OBJECT(&s->apu_cpu[i]),
- &error_abort);
+ int num_apus = MIN(smp_cpus, XLNX_ZYNQMP_NUM_APU_CPUS);
+
+ object_initialize_child(obj, "apu-cluster", &s->apu_cluster,
+ sizeof(s->apu_cluster), TYPE_CPU_CLUSTER,
+ &error_abort, NULL);
+ qdev_prop_set_uint32(DEVICE(&s->apu_cluster), "cluster-id", 0);
+
+ for (i = 0; i < num_apus; i++) {
+ object_initialize_child(OBJECT(&s->apu_cluster), "apu-cpu[*]",
+ &s->apu_cpu[i], sizeof(s->apu_cpu[i]),
+ "cortex-a53-" TYPE_ARM_CPU, &error_abort,
+ NULL);
}
- object_property_add_link(obj, "ddr-ram", TYPE_MEMORY_REGION,
- (Object **)&s->ddr_ram,
- qdev_prop_allow_set_link_before_realize,
- OBJ_PROP_LINK_UNREF_ON_RELEASE, &error_abort);
-
- object_initialize(&s->gic, sizeof(s->gic), gic_class_name());
- qdev_set_parent_bus(DEVICE(&s->gic), sysbus_get_default());
+ sysbus_init_child_obj(obj, "gic", &s->gic, sizeof(s->gic),
+ gic_class_name());
for (i = 0; i < XLNX_ZYNQMP_NUM_GEMS; i++) {
- object_initialize(&s->gem[i], sizeof(s->gem[i]), TYPE_CADENCE_GEM);
- qdev_set_parent_bus(DEVICE(&s->gem[i]), sysbus_get_default());
+ sysbus_init_child_obj(obj, "gem[*]", &s->gem[i], sizeof(s->gem[i]),
+ TYPE_CADENCE_GEM);
}
for (i = 0; i < XLNX_ZYNQMP_NUM_UARTS; i++) {
- object_initialize(&s->uart[i], sizeof(s->uart[i]), TYPE_CADENCE_UART);
- qdev_set_parent_bus(DEVICE(&s->uart[i]), sysbus_get_default());
+ sysbus_init_child_obj(obj, "uart[*]", &s->uart[i], sizeof(s->uart[i]),
+ TYPE_CADENCE_UART);
}
- object_initialize(&s->sata, sizeof(s->sata), TYPE_SYSBUS_AHCI);
- qdev_set_parent_bus(DEVICE(&s->sata), sysbus_get_default());
+ sysbus_init_child_obj(obj, "sata", &s->sata, sizeof(s->sata),
+ TYPE_SYSBUS_AHCI);
for (i = 0; i < XLNX_ZYNQMP_NUM_SDHCI; i++) {
- object_initialize(&s->sdhci[i], sizeof(s->sdhci[i]),
- TYPE_SYSBUS_SDHCI);
- qdev_set_parent_bus(DEVICE(&s->sdhci[i]),
- sysbus_get_default());
+ sysbus_init_child_obj(obj, "sdhci[*]", &s->sdhci[i],
+ sizeof(s->sdhci[i]), TYPE_SYSBUS_SDHCI);
}
for (i = 0; i < XLNX_ZYNQMP_NUM_SPIS; i++) {
- object_initialize(&s->spi[i], sizeof(s->spi[i]),
- TYPE_XILINX_SPIPS);
- qdev_set_parent_bus(DEVICE(&s->spi[i]), sysbus_get_default());
+ sysbus_init_child_obj(obj, "spi[*]", &s->spi[i], sizeof(s->spi[i]),
+ TYPE_XILINX_SPIPS);
}
- object_initialize(&s->dp, sizeof(s->dp), TYPE_XLNX_DP);
- qdev_set_parent_bus(DEVICE(&s->dp), sysbus_get_default());
+ sysbus_init_child_obj(obj, "qspi", &s->qspi, sizeof(s->qspi),
+ TYPE_XLNX_ZYNQMP_QSPIPS);
+
+ sysbus_init_child_obj(obj, "xxxdp", &s->dp, sizeof(s->dp), TYPE_XLNX_DP);
+
+ sysbus_init_child_obj(obj, "dp-dma", &s->dpdma, sizeof(s->dpdma),
+ TYPE_XLNX_DPDMA);
- object_initialize(&s->dpdma, sizeof(s->dpdma), TYPE_XLNX_DPDMA);
- qdev_set_parent_bus(DEVICE(&s->dpdma), sysbus_get_default());
+ sysbus_init_child_obj(obj, "ipi", &s->ipi, sizeof(s->ipi),
+ TYPE_XLNX_ZYNQMP_IPI);
+
+ sysbus_init_child_obj(obj, "rtc", &s->rtc, sizeof(s->rtc),
+ TYPE_XLNX_ZYNQMP_RTC);
+
+ for (i = 0; i < XLNX_ZYNQMP_NUM_GDMA_CH; i++) {
+ sysbus_init_child_obj(obj, "gdma[*]", &s->gdma[i], sizeof(s->gdma[i]),
+ TYPE_XLNX_ZDMA);
+ }
+
+ for (i = 0; i < XLNX_ZYNQMP_NUM_ADMA_CH; i++) {
+ sysbus_init_child_obj(obj, "adma[*]", &s->adma[i], sizeof(s->adma[i]),
+ TYPE_XLNX_ZDMA);
+ }
}
static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp)
MemoryRegion *system_memory = get_system_memory();
uint8_t i;
uint64_t ram_size;
+ int num_apus = MIN(smp_cpus, XLNX_ZYNQMP_NUM_APU_CPUS);
const char *boot_cpu = s->boot_cpu ? s->boot_cpu : "apu-cpu[0]";
ram_addr_t ddr_low_size, ddr_high_size;
qemu_irq gic_spi[GIC_NUM_SPI_INTR];
qdev_prop_set_uint32(DEVICE(&s->gic), "num-irq", GIC_NUM_SPI_INTR + 32);
qdev_prop_set_uint32(DEVICE(&s->gic), "revision", 2);
- qdev_prop_set_uint32(DEVICE(&s->gic), "num-cpu", XLNX_ZYNQMP_NUM_APU_CPUS);
+ qdev_prop_set_uint32(DEVICE(&s->gic), "num-cpu", num_apus);
+ qdev_prop_set_bit(DEVICE(&s->gic), "has-security-extensions", s->secure);
+ qdev_prop_set_bit(DEVICE(&s->gic),
+ "has-virtualization-extensions", s->virt);
+
+ qdev_init_nofail(DEVICE(&s->apu_cluster));
/* Realize APUs before realizing the GIC. KVM requires this. */
- for (i = 0; i < XLNX_ZYNQMP_NUM_APU_CPUS; i++) {
+ for (i = 0; i < num_apus; i++) {
char *name;
object_property_set_int(OBJECT(&s->apu_cpu[i]), QEMU_PSCI_CONDUIT_SMC,
object_property_set_bool(OBJECT(&s->apu_cpu[i]),
s->secure, "has_el3", NULL);
object_property_set_bool(OBJECT(&s->apu_cpu[i]),
- false, "has_el2", NULL);
+ s->virt, "has_el2", NULL);
object_property_set_int(OBJECT(&s->apu_cpu[i]), GIC_BASE_ADDR,
"reset-cbar", &error_abort);
+ object_property_set_int(OBJECT(&s->apu_cpu[i]), num_apus,
+ "core-count", &error_abort);
object_property_set_bool(OBJECT(&s->apu_cpu[i]), true, "realized",
&err);
if (err) {
for (i = 0; i < XLNX_ZYNQMP_GIC_REGIONS; i++) {
SysBusDevice *gic = SYS_BUS_DEVICE(&s->gic);
const XlnxZynqMPGICRegion *r = &xlnx_zynqmp_gic_regions[i];
- MemoryRegion *mr = sysbus_mmio_get_region(gic, r->region_index);
+ MemoryRegion *mr;
uint32_t addr = r->address;
int j;
- sysbus_mmio_map(gic, r->region_index, addr);
+ if (r->virt && !s->virt) {
+ continue;
+ }
+ mr = sysbus_mmio_get_region(gic, r->region_index);
for (j = 0; j < XLNX_ZYNQMP_GIC_ALIASES; j++) {
MemoryRegion *alias = &s->gic_mr[i][j];
- addr += XLNX_ZYNQMP_GIC_REGION_SIZE;
memory_region_init_alias(alias, OBJECT(s), "zynqmp-gic-alias", mr,
- 0, XLNX_ZYNQMP_GIC_REGION_SIZE);
+ r->offset, XLNX_ZYNQMP_GIC_REGION_SIZE);
memory_region_add_subregion(system_memory, addr, alias);
+
+ addr += XLNX_ZYNQMP_GIC_REGION_SIZE;
}
}
- for (i = 0; i < XLNX_ZYNQMP_NUM_APU_CPUS; i++) {
+ for (i = 0; i < num_apus; i++) {
qemu_irq irq;
sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i,
qdev_get_gpio_in(DEVICE(&s->apu_cpu[i]),
ARM_CPU_IRQ));
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + num_apus,
+ qdev_get_gpio_in(DEVICE(&s->apu_cpu[i]),
+ ARM_CPU_FIQ));
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + num_apus * 2,
+ qdev_get_gpio_in(DEVICE(&s->apu_cpu[i]),
+ ARM_CPU_VIRQ));
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + num_apus * 3,
+ qdev_get_gpio_in(DEVICE(&s->apu_cpu[i]),
+ ARM_CPU_VFIQ));
irq = qdev_get_gpio_in(DEVICE(&s->gic),
arm_gic_ppi_index(i, ARM_PHYS_TIMER_PPI));
- qdev_connect_gpio_out(DEVICE(&s->apu_cpu[i]), 0, irq);
+ qdev_connect_gpio_out(DEVICE(&s->apu_cpu[i]), GTIMER_PHYS, irq);
irq = qdev_get_gpio_in(DEVICE(&s->gic),
arm_gic_ppi_index(i, ARM_VIRT_TIMER_PPI));
- qdev_connect_gpio_out(DEVICE(&s->apu_cpu[i]), 1, irq);
+ qdev_connect_gpio_out(DEVICE(&s->apu_cpu[i]), GTIMER_VIRT, irq);
+ irq = qdev_get_gpio_in(DEVICE(&s->gic),
+ arm_gic_ppi_index(i, ARM_HYP_TIMER_PPI));
+ qdev_connect_gpio_out(DEVICE(&s->apu_cpu[i]), GTIMER_HYP, irq);
+ irq = qdev_get_gpio_in(DEVICE(&s->gic),
+ arm_gic_ppi_index(i, ARM_SEC_TIMER_PPI));
+ qdev_connect_gpio_out(DEVICE(&s->apu_cpu[i]), GTIMER_SEC, irq);
+
+ if (s->virt) {
+ irq = qdev_get_gpio_in(DEVICE(&s->gic),
+ arm_gic_ppi_index(i, GIC_MAINTENANCE_PPI));
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + num_apus * 4, irq);
+ }
}
if (s->has_rpu) {
- xlnx_zynqmp_create_rpu(s, boot_cpu, &err);
- if (err) {
- error_propagate(errp, err);
- return;
- }
+ info_report("The 'has_rpu' property is no longer required, to use the "
+ "RPUs just use -smp 6.");
+ }
+
+ xlnx_zynqmp_create_rpu(s, boot_cpu, &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
}
if (!s->boot_cpu_ptr) {
}
for (i = 0; i < XLNX_ZYNQMP_NUM_UARTS; i++) {
- qdev_prop_set_chr(DEVICE(&s->uart[i]), "chardev", serial_hds[i]);
+ qdev_prop_set_chr(DEVICE(&s->uart[i]), "chardev", serial_hd(i));
object_property_set_bool(OBJECT(&s->uart[i]), true, "realized", &err);
if (err) {
error_propagate(errp, err);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->sata), 0, gic_spi[SATA_INTR]);
for (i = 0; i < XLNX_ZYNQMP_NUM_SDHCI; i++) {
- char *bus_name;
-
- object_property_set_bool(OBJECT(&s->sdhci[i]), true,
- "realized", &err);
+ char *bus_name = g_strdup_printf("sd-bus%d", i);
+ SysBusDevice *sbd = SYS_BUS_DEVICE(&s->sdhci[i]);
+ Object *sdhci = OBJECT(&s->sdhci[i]);
+
+ /* Compatible with:
+ * - SD Host Controller Specification Version 3.00
+ * - SDIO Specification Version 3.0
+ * - eMMC Specification Version 4.51
+ */
+ object_property_set_uint(sdhci, 3, "sd-spec-version", &err);
+ object_property_set_uint(sdhci, SDHCI_CAPABILITIES, "capareg", &err);
+ object_property_set_uint(sdhci, UHS_I, "uhs", &err);
+ object_property_set_bool(sdhci, true, "realized", &err);
if (err) {
error_propagate(errp, err);
return;
}
- sysbus_mmio_map(SYS_BUS_DEVICE(&s->sdhci[i]), 0,
- sdhci_addr[i]);
- sysbus_connect_irq(SYS_BUS_DEVICE(&s->sdhci[i]), 0,
- gic_spi[sdhci_intr[i]]);
+ sysbus_mmio_map(sbd, 0, sdhci_addr[i]);
+ sysbus_connect_irq(sbd, 0, gic_spi[sdhci_intr[i]]);
+
/* Alias controller SD bus to the SoC itself */
- bus_name = g_strdup_printf("sd-bus%d", i);
- object_property_add_alias(OBJECT(s), bus_name,
- OBJECT(&s->sdhci[i]), "sd-bus",
+ object_property_add_alias(OBJECT(s), bus_name, sdhci, "sd-bus",
&error_abort);
g_free(bus_name);
}
g_free(bus_name);
}
+ object_property_set_bool(OBJECT(&s->qspi), true, "realized", &err);
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->qspi), 0, QSPI_ADDR);
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->qspi), 1, LQSPI_ADDR);
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->qspi), 0, gic_spi[QSPI_IRQ]);
+
+ for (i = 0; i < XLNX_ZYNQMP_NUM_QSPI_BUS; i++) {
+ gchar *bus_name;
+ gchar *target_bus;
+
+ /* Alias controller SPI bus to the SoC itself */
+ bus_name = g_strdup_printf("qspi%d", i);
+ target_bus = g_strdup_printf("spi%d", i);
+ object_property_add_alias(OBJECT(s), bus_name,
+ OBJECT(&s->qspi), target_bus,
+ &error_abort);
+ g_free(bus_name);
+ g_free(target_bus);
+ }
+
object_property_set_bool(OBJECT(&s->dp), true, "realized", &err);
if (err) {
error_propagate(errp, err);
&error_abort);
sysbus_mmio_map(SYS_BUS_DEVICE(&s->dpdma), 0, DPDMA_ADDR);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->dpdma), 0, gic_spi[DPDMA_IRQ]);
+
+ object_property_set_bool(OBJECT(&s->ipi), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->ipi), 0, IPI_ADDR);
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->ipi), 0, gic_spi[IPI_IRQ]);
+
+ object_property_set_bool(OBJECT(&s->rtc), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->rtc), 0, RTC_ADDR);
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->rtc), 0, gic_spi[RTC_IRQ]);
+
+ for (i = 0; i < XLNX_ZYNQMP_NUM_GDMA_CH; i++) {
+ object_property_set_uint(OBJECT(&s->gdma[i]), 128, "bus-width", &err);
+ object_property_set_bool(OBJECT(&s->gdma[i]), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->gdma[i]), 0, gdma_ch_addr[i]);
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->gdma[i]), 0,
+ gic_spi[gdma_ch_intr[i]]);
+ }
+
+ for (i = 0; i < XLNX_ZYNQMP_NUM_ADMA_CH; i++) {
+ object_property_set_bool(OBJECT(&s->adma[i]), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->adma[i]), 0, adma_ch_addr[i]);
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->adma[i]), 0,
+ gic_spi[adma_ch_intr[i]]);
+ }
}
static Property xlnx_zynqmp_props[] = {
DEFINE_PROP_STRING("boot-cpu", XlnxZynqMPState, boot_cpu),
DEFINE_PROP_BOOL("secure", XlnxZynqMPState, secure, false),
+ DEFINE_PROP_BOOL("virtualization", XlnxZynqMPState, virt, false),
DEFINE_PROP_BOOL("has_rpu", XlnxZynqMPState, has_rpu, false),
+ DEFINE_PROP_LINK("ddr-ram", XlnxZynqMPState, ddr_ram, TYPE_MEMORY_REGION,
+ MemoryRegion *),
DEFINE_PROP_END_OF_LIST()
};
dc->props = xlnx_zynqmp_props;
dc->realize = xlnx_zynqmp_realize;
+ /* Reason: Uses serial_hds in realize function, thus can't be used twice */
+ dc->user_creatable = false;
}
static const TypeInfo xlnx_zynqmp_type_info = {
projects / qemu.git / blobdiff