The use of FDT's is quite common across our various platforms. To allow the generic loader to tweak it we need to make it available in the generic state. This creates the field and migrates the initial user to use the generic field. Other boards will be updated in later patches.

Signed-off-by: Alex Bennée alex.bennee@linaro.org Reviewed-by: Philippe Mathieu-Daudé philmd@redhat.com Message-Id: 20201105175153.30489-2-alex.bennee@linaro.org Signed-off-by: Alex Bennée alex.bennee@linaro.org

--- v2 - rebase --- include/hw/arm/virt.h | 1 - include/hw/boards.h | 1 + hw/arm/virt.c | 356 ++++++++++++++++++++++-------------------- 3 files changed, 186 insertions(+), 172 deletions(-)

diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h index ee9a93101e..921416f918 100644 --- a/include/hw/arm/virt.h +++ b/include/hw/arm/virt.h @@ -153,7 +153,6 @@ struct VirtMachineState { MemMapEntry *memmap; char *pciehb_nodename; const int *irqmap; - void *fdt; int fdt_size; uint32_t clock_phandle; uint32_t gic_phandle; diff --git a/include/hw/boards.h b/include/hw/boards.h index a46dfe5d1a..5fda5fd128 100644 --- a/include/hw/boards.h +++ b/include/hw/boards.h @@ -258,6 +258,7 @@ struct MachineState {

/*< public >*/

+ void *fdt; char *dtb; char *dumpdtb; int phandle_start; diff --git a/hw/arm/virt.c b/hw/arm/virt.c index 371147f3ae..c08bf11297 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -218,14 +218,14 @@ static bool cpu_type_valid(const char *cpu) return false; }

-static void create_kaslr_seed(VirtMachineState *vms, const char *node) +static void create_kaslr_seed(MachineState *ms, const char *node) { uint64_t seed;

if (qemu_guest_getrandom(&seed, sizeof(seed), NULL)) { return; } - qemu_fdt_setprop_u64(vms->fdt, node, "kaslr-seed", seed); + qemu_fdt_setprop_u64(ms->fdt, node, "kaslr-seed", seed); }

static void create_fdt(VirtMachineState *vms) @@ -239,7 +239,7 @@ static void create_fdt(VirtMachineState *vms) exit(1); }

- vms->fdt = fdt; + ms->fdt = fdt;

/* Header */ qemu_fdt_setprop_string(fdt, "/", "compatible", "linux,dummy-virt"); @@ -248,11 +248,11 @@ static void create_fdt(VirtMachineState *vms)

/* /chosen must exist for load_dtb to fill in necessary properties later */ qemu_fdt_add_subnode(fdt, "/chosen"); - create_kaslr_seed(vms, "/chosen"); + create_kaslr_seed(ms, "/chosen");

if (vms->secure) { qemu_fdt_add_subnode(fdt, "/secure-chosen"); - create_kaslr_seed(vms, "/secure-chosen"); + create_kaslr_seed(ms, "/secure-chosen"); }

/* Clock node, for the benefit of the UART. The kernel device tree @@ -316,6 +316,7 @@ static void fdt_add_timer_nodes(const VirtMachineState *vms) ARMCPU *armcpu; VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); uint32_t irqflags = GIC_FDT_IRQ_FLAGS_LEVEL_HI; + MachineState *ms = MACHINE(vms);

if (vmc->claim_edge_triggered_timers) { irqflags = GIC_FDT_IRQ_FLAGS_EDGE_LO_HI; @@ -327,19 +328,19 @@ static void fdt_add_timer_nodes(const VirtMachineState *vms) (1 << MACHINE(vms)->smp.cpus) - 1); }

- qemu_fdt_add_subnode(vms->fdt, "/timer"); + qemu_fdt_add_subnode(ms->fdt, "/timer");

armcpu = ARM_CPU(qemu_get_cpu(0)); if (arm_feature(&armcpu->env, ARM_FEATURE_V8)) { const char compat[] = "arm,armv8-timer\0arm,armv7-timer"; - qemu_fdt_setprop(vms->fdt, "/timer", "compatible", + qemu_fdt_setprop(ms->fdt, "/timer", "compatible", compat, sizeof(compat)); } else { - qemu_fdt_setprop_string(vms->fdt, "/timer", "compatible", + qemu_fdt_setprop_string(ms->fdt, "/timer", "compatible", "arm,armv7-timer"); } - qemu_fdt_setprop(vms->fdt, "/timer", "always-on", NULL, 0); - qemu_fdt_setprop_cells(vms->fdt, "/timer", "interrupts", + qemu_fdt_setprop(ms->fdt, "/timer", "always-on", NULL, 0); + qemu_fdt_setprop_cells(ms->fdt, "/timer", "interrupts", GIC_FDT_IRQ_TYPE_PPI, ARCH_TIMER_S_EL1_IRQ, irqflags, GIC_FDT_IRQ_TYPE_PPI, ARCH_TIMER_NS_EL1_IRQ, irqflags, GIC_FDT_IRQ_TYPE_PPI, ARCH_TIMER_VIRT_IRQ, irqflags, @@ -375,35 +376,35 @@ static void fdt_add_cpu_nodes(const VirtMachineState *vms) } }

- qemu_fdt_add_subnode(vms->fdt, "/cpus"); - qemu_fdt_setprop_cell(vms->fdt, "/cpus", "#address-cells", addr_cells); - qemu_fdt_setprop_cell(vms->fdt, "/cpus", "#size-cells", 0x0); + qemu_fdt_add_subnode(ms->fdt, "/cpus"); + qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#address-cells", addr_cells); + qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#size-cells", 0x0);

for (cpu = smp_cpus - 1; cpu >= 0; cpu--) { char *nodename = g_strdup_printf("/cpus/cpu@%d", cpu); ARMCPU *armcpu = ARM_CPU(qemu_get_cpu(cpu)); CPUState *cs = CPU(armcpu);

- qemu_fdt_add_subnode(vms->fdt, nodename); - qemu_fdt_setprop_string(vms->fdt, nodename, "device_type", "cpu"); - qemu_fdt_setprop_string(vms->fdt, nodename, "compatible", + qemu_fdt_add_subnode(ms->fdt, nodename); + qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "cpu"); + qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", armcpu->dtb_compatible);

if (vms->psci_conduit != QEMU_PSCI_CONDUIT_DISABLED && smp_cpus > 1) { - qemu_fdt_setprop_string(vms->fdt, nodename, + qemu_fdt_setprop_string(ms->fdt, nodename, "enable-method", "psci"); }

if (addr_cells == 2) { - qemu_fdt_setprop_u64(vms->fdt, nodename, "reg", + qemu_fdt_setprop_u64(ms->fdt, nodename, "reg", armcpu->mp_affinity); } else { - qemu_fdt_setprop_cell(vms->fdt, nodename, "reg", + qemu_fdt_setprop_cell(ms->fdt, nodename, "reg", armcpu->mp_affinity); }

if (ms->possible_cpus->cpus[cs->cpu_index].props.has_node_id) { - qemu_fdt_setprop_cell(vms->fdt, nodename, "numa-node-id", + qemu_fdt_setprop_cell(ms->fdt, nodename, "numa-node-id", ms->possible_cpus->cpus[cs->cpu_index].props.node_id); }

@@ -414,71 +415,74 @@ static void fdt_add_cpu_nodes(const VirtMachineState *vms) static void fdt_add_its_gic_node(VirtMachineState *vms) { char *nodename; + MachineState *ms = MACHINE(vms);

- vms->msi_phandle = qemu_fdt_alloc_phandle(vms->fdt); + vms->msi_phandle = qemu_fdt_alloc_phandle(ms->fdt); nodename = g_strdup_printf("/intc/its@%" PRIx64, vms->memmap[VIRT_GIC_ITS].base); - qemu_fdt_add_subnode(vms->fdt, nodename); - qemu_fdt_setprop_string(vms->fdt, nodename, "compatible", + qemu_fdt_add_subnode(ms->fdt, nodename); + qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "arm,gic-v3-its"); - qemu_fdt_setprop(vms->fdt, nodename, "msi-controller", NULL, 0); - qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg", + qemu_fdt_setprop(ms->fdt, nodename, "msi-controller", NULL, 0); + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, vms->memmap[VIRT_GIC_ITS].base, 2, vms->memmap[VIRT_GIC_ITS].size); - qemu_fdt_setprop_cell(vms->fdt, nodename, "phandle", vms->msi_phandle); + qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", vms->msi_phandle); g_free(nodename); }

static void fdt_add_v2m_gic_node(VirtMachineState *vms) { + MachineState *ms = MACHINE(vms); char *nodename;

nodename = g_strdup_printf("/intc/v2m@%" PRIx64, vms->memmap[VIRT_GIC_V2M].base); - vms->msi_phandle = qemu_fdt_alloc_phandle(vms->fdt); - qemu_fdt_add_subnode(vms->fdt, nodename); - qemu_fdt_setprop_string(vms->fdt, nodename, "compatible", + vms->msi_phandle = qemu_fdt_alloc_phandle(ms->fdt); + qemu_fdt_add_subnode(ms->fdt, nodename); + qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "arm,gic-v2m-frame"); - qemu_fdt_setprop(vms->fdt, nodename, "msi-controller", NULL, 0); - qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg", + qemu_fdt_setprop(ms->fdt, nodename, "msi-controller", NULL, 0); + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, vms->memmap[VIRT_GIC_V2M].base, 2, vms->memmap[VIRT_GIC_V2M].size); - qemu_fdt_setprop_cell(vms->fdt, nodename, "phandle", vms->msi_phandle); + qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", vms->msi_phandle); g_free(nodename); }

static void fdt_add_gic_node(VirtMachineState *vms) { + MachineState *ms = MACHINE(vms); char *nodename;

- vms->gic_phandle = qemu_fdt_alloc_phandle(vms->fdt); - qemu_fdt_setprop_cell(vms->fdt, "/", "interrupt-parent", vms->gic_phandle); + vms->gic_phandle = qemu_fdt_alloc_phandle(ms->fdt); + qemu_fdt_setprop_cell(ms->fdt, "/", "interrupt-parent", vms->gic_phandle);

nodename = g_strdup_printf("/intc@%" PRIx64, vms->memmap[VIRT_GIC_DIST].base); - qemu_fdt_add_subnode(vms->fdt, nodename); - qemu_fdt_setprop_cell(vms->fdt, nodename, "#interrupt-cells", 3); - qemu_fdt_setprop(vms->fdt, nodename, "interrupt-controller", NULL, 0); - qemu_fdt_setprop_cell(vms->fdt, nodename, "#address-cells", 0x2); - qemu_fdt_setprop_cell(vms->fdt, nodename, "#size-cells", 0x2); - qemu_fdt_setprop(vms->fdt, nodename, "ranges", NULL, 0); + qemu_fdt_add_subnode(ms->fdt, nodename); + qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 3); + qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0); + qemu_fdt_setprop_cell(ms->fdt, nodename, "#address-cells", 0x2); + qemu_fdt_setprop_cell(ms->fdt, nodename, "#size-cells", 0x2); + qemu_fdt_setprop(ms->fdt, nodename, "ranges", NULL, 0); if (vms->gic_version == VIRT_GIC_VERSION_3) { int nb_redist_regions = virt_gicv3_redist_region_count(vms);

- qemu_fdt_setprop_string(vms->fdt, nodename, "compatible", + qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "arm,gic-v3");

- qemu_fdt_setprop_cell(vms->fdt, nodename, + qemu_fdt_setprop_cell(ms->fdt, nodename, "#redistributor-regions", nb_redist_regions);

if (nb_redist_regions == 1) { - qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg", + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, vms->memmap[VIRT_GIC_DIST].base, 2, vms->memmap[VIRT_GIC_DIST].size, 2, vms->memmap[VIRT_GIC_REDIST].base, 2, vms->memmap[VIRT_GIC_REDIST].size); } else { - qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg", + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, vms->memmap[VIRT_GIC_DIST].base, 2, vms->memmap[VIRT_GIC_DIST].size, 2, vms->memmap[VIRT_GIC_REDIST].base, @@ -488,22 +492,22 @@ static void fdt_add_gic_node(VirtMachineState *vms) }

if (vms->virt) { - qemu_fdt_setprop_cells(vms->fdt, nodename, "interrupts", + qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", GIC_FDT_IRQ_TYPE_PPI, ARCH_GIC_MAINT_IRQ, GIC_FDT_IRQ_FLAGS_LEVEL_HI); } } else { /* 'cortex-a15-gic' means 'GIC v2' */ - qemu_fdt_setprop_string(vms->fdt, nodename, "compatible", + qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "arm,cortex-a15-gic"); if (!vms->virt) { - qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg", + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, vms->memmap[VIRT_GIC_DIST].base, 2, vms->memmap[VIRT_GIC_DIST].size, 2, vms->memmap[VIRT_GIC_CPU].base, 2, vms->memmap[VIRT_GIC_CPU].size); } else { - qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg", + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, vms->memmap[VIRT_GIC_DIST].base, 2, vms->memmap[VIRT_GIC_DIST].size, 2, vms->memmap[VIRT_GIC_CPU].base, @@ -512,13 +516,13 @@ static void fdt_add_gic_node(VirtMachineState *vms) 2, vms->memmap[VIRT_GIC_HYP].size, 2, vms->memmap[VIRT_GIC_VCPU].base, 2, vms->memmap[VIRT_GIC_VCPU].size); - qemu_fdt_setprop_cells(vms->fdt, nodename, "interrupts", + qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", GIC_FDT_IRQ_TYPE_PPI, ARCH_GIC_MAINT_IRQ, GIC_FDT_IRQ_FLAGS_LEVEL_HI); } }

- qemu_fdt_setprop_cell(vms->fdt, nodename, "phandle", vms->gic_phandle); + qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", vms->gic_phandle); g_free(nodename); }

@@ -526,6 +530,7 @@ static void fdt_add_pmu_nodes(const VirtMachineState *vms) { ARMCPU *armcpu = ARM_CPU(first_cpu); uint32_t irqflags = GIC_FDT_IRQ_FLAGS_LEVEL_HI; + MachineState *ms = MACHINE(vms);

if (!arm_feature(&armcpu->env, ARM_FEATURE_PMU)) { assert(!object_property_get_bool(OBJECT(armcpu), "pmu", NULL)); @@ -538,12 +543,12 @@ static void fdt_add_pmu_nodes(const VirtMachineState *vms) (1 << MACHINE(vms)->smp.cpus) - 1); }

- qemu_fdt_add_subnode(vms->fdt, "/pmu"); + qemu_fdt_add_subnode(ms->fdt, "/pmu"); if (arm_feature(&armcpu->env, ARM_FEATURE_V8)) { const char compat[] = "arm,armv8-pmuv3"; - qemu_fdt_setprop(vms->fdt, "/pmu", "compatible", + qemu_fdt_setprop(ms->fdt, "/pmu", "compatible", compat, sizeof(compat)); - qemu_fdt_setprop_cells(vms->fdt, "/pmu", "interrupts", + qemu_fdt_setprop_cells(ms->fdt, "/pmu", "interrupts", GIC_FDT_IRQ_TYPE_PPI, VIRTUAL_PMU_IRQ, irqflags); } } @@ -749,6 +754,7 @@ static void create_uart(const VirtMachineState *vms, int uart, const char clocknames[] = "uartclk\0apb_pclk"; DeviceState *dev = qdev_new(TYPE_PL011); SysBusDevice *s = SYS_BUS_DEVICE(dev); + MachineState *ms = MACHINE(vms);

qdev_prop_set_chr(dev, "chardev", chr); sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); @@ -757,28 +763,28 @@ static void create_uart(const VirtMachineState *vms, int uart, sysbus_connect_irq(s, 0, qdev_get_gpio_in(vms->gic, irq));

nodename = g_strdup_printf("/pl011@%" PRIx64, base); - qemu_fdt_add_subnode(vms->fdt, nodename); + qemu_fdt_add_subnode(ms->fdt, nodename); /* Note that we can't use setprop_string because of the embedded NUL */ - qemu_fdt_setprop(vms->fdt, nodename, "compatible", + qemu_fdt_setprop(ms->fdt, nodename, "compatible", compat, sizeof(compat)); - qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg", + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, base, 2, size); - qemu_fdt_setprop_cells(vms->fdt, nodename, "interrupts", + qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", GIC_FDT_IRQ_TYPE_SPI, irq, GIC_FDT_IRQ_FLAGS_LEVEL_HI); - qemu_fdt_setprop_cells(vms->fdt, nodename, "clocks", + qemu_fdt_setprop_cells(ms->fdt, nodename, "clocks", vms->clock_phandle, vms->clock_phandle); - qemu_fdt_setprop(vms->fdt, nodename, "clock-names", + qemu_fdt_setprop(ms->fdt, nodename, "clock-names", clocknames, sizeof(clocknames));

if (uart == VIRT_UART) { - qemu_fdt_setprop_string(vms->fdt, "/chosen", "stdout-path", nodename); + qemu_fdt_setprop_string(ms->fdt, "/chosen", "stdout-path", nodename); } else { /* Mark as not usable by the normal world */ - qemu_fdt_setprop_string(vms->fdt, nodename, "status", "disabled"); - qemu_fdt_setprop_string(vms->fdt, nodename, "secure-status", "okay"); + qemu_fdt_setprop_string(ms->fdt, nodename, "status", "disabled"); + qemu_fdt_setprop_string(ms->fdt, nodename, "secure-status", "okay");

- qemu_fdt_setprop_string(vms->fdt, "/secure-chosen", "stdout-path", + qemu_fdt_setprop_string(ms->fdt, "/secure-chosen", "stdout-path", nodename); }

@@ -792,19 +798,20 @@ static void create_rtc(const VirtMachineState *vms) hwaddr size = vms->memmap[VIRT_RTC].size; int irq = vms->irqmap[VIRT_RTC]; const char compat[] = "arm,pl031\0arm,primecell"; + MachineState *ms = MACHINE(vms);

sysbus_create_simple("pl031", base, qdev_get_gpio_in(vms->gic, irq));

nodename = g_strdup_printf("/pl031@%" PRIx64, base); - qemu_fdt_add_subnode(vms->fdt, nodename); - qemu_fdt_setprop(vms->fdt, nodename, "compatible", compat, sizeof(compat)); - qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg", + qemu_fdt_add_subnode(ms->fdt, nodename); + qemu_fdt_setprop(ms->fdt, nodename, "compatible", compat, sizeof(compat)); + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, base, 2, size); - qemu_fdt_setprop_cells(vms->fdt, nodename, "interrupts", + qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", GIC_FDT_IRQ_TYPE_SPI, irq, GIC_FDT_IRQ_FLAGS_LEVEL_HI); - qemu_fdt_setprop_cell(vms->fdt, nodename, "clocks", vms->clock_phandle); - qemu_fdt_setprop_string(vms->fdt, nodename, "clock-names", "apb_pclk"); + qemu_fdt_setprop_cell(ms->fdt, nodename, "clocks", vms->clock_phandle); + qemu_fdt_setprop_string(ms->fdt, nodename, "clock-names", "apb_pclk"); g_free(nodename); }

@@ -821,32 +828,30 @@ static void virt_powerdown_req(Notifier *n, void *opaque) } }

-static void create_gpio_keys(const VirtMachineState *vms, - DeviceState *pl061_dev, +static void create_gpio_keys(char *fdt, DeviceState *pl061_dev, uint32_t phandle) { gpio_key_dev = sysbus_create_simple("gpio-key", -1, qdev_get_gpio_in(pl061_dev, 3));

- qemu_fdt_add_subnode(vms->fdt, "/gpio-keys"); - qemu_fdt_setprop_string(vms->fdt, "/gpio-keys", "compatible", "gpio-keys"); - qemu_fdt_setprop_cell(vms->fdt, "/gpio-keys", "#size-cells", 0); - qemu_fdt_setprop_cell(vms->fdt, "/gpio-keys", "#address-cells", 1); + qemu_fdt_add_subnode(fdt, "/gpio-keys"); + qemu_fdt_setprop_string(fdt, "/gpio-keys", "compatible", "gpio-keys"); + qemu_fdt_setprop_cell(fdt, "/gpio-keys", "#size-cells", 0); + qemu_fdt_setprop_cell(fdt, "/gpio-keys", "#address-cells", 1);

- qemu_fdt_add_subnode(vms->fdt, "/gpio-keys/poweroff"); - qemu_fdt_setprop_string(vms->fdt, "/gpio-keys/poweroff", + qemu_fdt_add_subnode(fdt, "/gpio-keys/poweroff"); + qemu_fdt_setprop_string(fdt, "/gpio-keys/poweroff", "label", "GPIO Key Poweroff"); - qemu_fdt_setprop_cell(vms->fdt, "/gpio-keys/poweroff", "linux,code", + qemu_fdt_setprop_cell(fdt, "/gpio-keys/poweroff", "linux,code", KEY_POWER); - qemu_fdt_setprop_cells(vms->fdt, "/gpio-keys/poweroff", + qemu_fdt_setprop_cells(fdt, "/gpio-keys/poweroff", "gpios", phandle, 3, 0); }

#define SECURE_GPIO_POWEROFF 0 #define SECURE_GPIO_RESET 1

-static void create_secure_gpio_pwr(const VirtMachineState *vms, - DeviceState *pl061_dev, +static void create_secure_gpio_pwr(char *fdt, DeviceState *pl061_dev, uint32_t phandle) { DeviceState *gpio_pwr_dev; @@ -860,22 +865,22 @@ static void create_secure_gpio_pwr(const VirtMachineState *vms, qdev_connect_gpio_out(pl061_dev, SECURE_GPIO_POWEROFF, qdev_get_gpio_in_named(gpio_pwr_dev, "shutdown", 0));

- qemu_fdt_add_subnode(vms->fdt, "/gpio-poweroff"); - qemu_fdt_setprop_string(vms->fdt, "/gpio-poweroff", "compatible", + qemu_fdt_add_subnode(fdt, "/gpio-poweroff"); + qemu_fdt_setprop_string(fdt, "/gpio-poweroff", "compatible", "gpio-poweroff"); - qemu_fdt_setprop_cells(vms->fdt, "/gpio-poweroff", + qemu_fdt_setprop_cells(fdt, "/gpio-poweroff", "gpios", phandle, SECURE_GPIO_POWEROFF, 0); - qemu_fdt_setprop_string(vms->fdt, "/gpio-poweroff", "status", "disabled"); - qemu_fdt_setprop_string(vms->fdt, "/gpio-poweroff", "secure-status", + qemu_fdt_setprop_string(fdt, "/gpio-poweroff", "status", "disabled"); + qemu_fdt_setprop_string(fdt, "/gpio-poweroff", "secure-status", "okay");

- qemu_fdt_add_subnode(vms->fdt, "/gpio-restart"); - qemu_fdt_setprop_string(vms->fdt, "/gpio-restart", "compatible", + qemu_fdt_add_subnode(fdt, "/gpio-restart"); + qemu_fdt_setprop_string(fdt, "/gpio-restart", "compatible", "gpio-restart"); - qemu_fdt_setprop_cells(vms->fdt, "/gpio-restart", + qemu_fdt_setprop_cells(fdt, "/gpio-restart", "gpios", phandle, SECURE_GPIO_RESET, 0); - qemu_fdt_setprop_string(vms->fdt, "/gpio-restart", "status", "disabled"); - qemu_fdt_setprop_string(vms->fdt, "/gpio-restart", "secure-status", + qemu_fdt_setprop_string(fdt, "/gpio-restart", "status", "disabled"); + qemu_fdt_setprop_string(fdt, "/gpio-restart", "secure-status", "okay"); }

@@ -889,6 +894,7 @@ static void create_gpio_devices(const VirtMachineState *vms, int gpio, int irq = vms->irqmap[gpio]; const char compat[] = "arm,pl061\0arm,primecell"; SysBusDevice *s; + MachineState *ms = MACHINE(vms);

pl061_dev = qdev_new("pl061"); s = SYS_BUS_DEVICE(pl061_dev); @@ -896,33 +902,33 @@ static void create_gpio_devices(const VirtMachineState *vms, int gpio, memory_region_add_subregion(mem, base, sysbus_mmio_get_region(s, 0)); sysbus_connect_irq(s, 0, qdev_get_gpio_in(vms->gic, irq));

- uint32_t phandle = qemu_fdt_alloc_phandle(vms->fdt); + uint32_t phandle = qemu_fdt_alloc_phandle(ms->fdt); nodename = g_strdup_printf("/pl061@%" PRIx64, base); - qemu_fdt_add_subnode(vms->fdt, nodename); - qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg", + qemu_fdt_add_subnode(ms->fdt, nodename); + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, base, 2, size); - qemu_fdt_setprop(vms->fdt, nodename, "compatible", compat, sizeof(compat)); - qemu_fdt_setprop_cell(vms->fdt, nodename, "#gpio-cells", 2); - qemu_fdt_setprop(vms->fdt, nodename, "gpio-controller", NULL, 0); - qemu_fdt_setprop_cells(vms->fdt, nodename, "interrupts", + qemu_fdt_setprop(ms->fdt, nodename, "compatible", compat, sizeof(compat)); + qemu_fdt_setprop_cell(ms->fdt, nodename, "#gpio-cells", 2); + qemu_fdt_setprop(ms->fdt, nodename, "gpio-controller", NULL, 0); + qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", GIC_FDT_IRQ_TYPE_SPI, irq, GIC_FDT_IRQ_FLAGS_LEVEL_HI); - qemu_fdt_setprop_cell(vms->fdt, nodename, "clocks", vms->clock_phandle); - qemu_fdt_setprop_string(vms->fdt, nodename, "clock-names", "apb_pclk"); - qemu_fdt_setprop_cell(vms->fdt, nodename, "phandle", phandle); + qemu_fdt_setprop_cell(ms->fdt, nodename, "clocks", vms->clock_phandle); + qemu_fdt_setprop_string(ms->fdt, nodename, "clock-names", "apb_pclk"); + qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", phandle);

if (gpio != VIRT_GPIO) { /* Mark as not usable by the normal world */ - qemu_fdt_setprop_string(vms->fdt, nodename, "status", "disabled"); - qemu_fdt_setprop_string(vms->fdt, nodename, "secure-status", "okay"); + qemu_fdt_setprop_string(ms->fdt, nodename, "status", "disabled"); + qemu_fdt_setprop_string(ms->fdt, nodename, "secure-status", "okay"); } g_free(nodename);

/* Child gpio devices */ if (gpio == VIRT_GPIO) { - create_gpio_keys(vms, pl061_dev, phandle); + create_gpio_keys(ms->fdt, pl061_dev, phandle); } else { - create_secure_gpio_pwr(vms, pl061_dev, phandle); + create_secure_gpio_pwr(ms->fdt, pl061_dev, phandle); } }

@@ -930,6 +936,7 @@ static void create_virtio_devices(const VirtMachineState *vms) { int i; hwaddr size = vms->memmap[VIRT_MMIO].size; + MachineState *ms = MACHINE(vms);

/* We create the transports in forwards order. Since qbus_realize() * prepends (not appends) new child buses, the incrementing loop below will @@ -979,15 +986,15 @@ static void create_virtio_devices(const VirtMachineState *vms) hwaddr base = vms->memmap[VIRT_MMIO].base + i * size;

nodename = g_strdup_printf("/virtio_mmio@%" PRIx64, base); - qemu_fdt_add_subnode(vms->fdt, nodename); - qemu_fdt_setprop_string(vms->fdt, nodename, + qemu_fdt_add_subnode(ms->fdt, nodename); + qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "virtio,mmio"); - qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg", + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, base, 2, size); - qemu_fdt_setprop_cells(vms->fdt, nodename, "interrupts", + qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", GIC_FDT_IRQ_TYPE_SPI, irq, GIC_FDT_IRQ_FLAGS_EDGE_LO_HI); - qemu_fdt_setprop(vms->fdt, nodename, "dma-coherent", NULL, 0); + qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); g_free(nodename); } } @@ -1068,17 +1075,18 @@ static void virt_flash_fdt(VirtMachineState *vms, { hwaddr flashsize = vms->memmap[VIRT_FLASH].size / 2; hwaddr flashbase = vms->memmap[VIRT_FLASH].base; + MachineState *ms = MACHINE(vms); char *nodename;

if (sysmem == secure_sysmem) { /* Report both flash devices as a single node in the DT */ nodename = g_strdup_printf("/flash@%" PRIx64, flashbase); - qemu_fdt_add_subnode(vms->fdt, nodename); - qemu_fdt_setprop_string(vms->fdt, nodename, "compatible", "cfi-flash"); - qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg", + qemu_fdt_add_subnode(ms->fdt, nodename); + qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "cfi-flash"); + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, flashbase, 2, flashsize, 2, flashbase + flashsize, 2, flashsize); - qemu_fdt_setprop_cell(vms->fdt, nodename, "bank-width", 4); + qemu_fdt_setprop_cell(ms->fdt, nodename, "bank-width", 4); g_free(nodename); } else { /* @@ -1086,21 +1094,21 @@ static void virt_flash_fdt(VirtMachineState *vms, * only visible to the secure world. */ nodename = g_strdup_printf("/secflash@%" PRIx64, flashbase); - qemu_fdt_add_subnode(vms->fdt, nodename); - qemu_fdt_setprop_string(vms->fdt, nodename, "compatible", "cfi-flash"); - qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg", + qemu_fdt_add_subnode(ms->fdt, nodename); + qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "cfi-flash"); + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, flashbase, 2, flashsize); - qemu_fdt_setprop_cell(vms->fdt, nodename, "bank-width", 4); - qemu_fdt_setprop_string(vms->fdt, nodename, "status", "disabled"); - qemu_fdt_setprop_string(vms->fdt, nodename, "secure-status", "okay"); + qemu_fdt_setprop_cell(ms->fdt, nodename, "bank-width", 4); + qemu_fdt_setprop_string(ms->fdt, nodename, "status", "disabled"); + qemu_fdt_setprop_string(ms->fdt, nodename, "secure-status", "okay"); g_free(nodename);

nodename = g_strdup_printf("/flash@%" PRIx64, flashbase); - qemu_fdt_add_subnode(vms->fdt, nodename); - qemu_fdt_setprop_string(vms->fdt, nodename, "compatible", "cfi-flash"); - qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg", + qemu_fdt_add_subnode(ms->fdt, nodename); + qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "cfi-flash"); + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, flashbase + flashsize, 2, flashsize); - qemu_fdt_setprop_cell(vms->fdt, nodename, "bank-width", 4); + qemu_fdt_setprop_cell(ms->fdt, nodename, "bank-width", 4); g_free(nodename); } } @@ -1167,17 +1175,17 @@ static FWCfgState *create_fw_cfg(const VirtMachineState *vms, AddressSpace *as) fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)ms->smp.cpus);

nodename = g_strdup_printf("/fw-cfg@%" PRIx64, base); - qemu_fdt_add_subnode(vms->fdt, nodename); - qemu_fdt_setprop_string(vms->fdt, nodename, + qemu_fdt_add_subnode(ms->fdt, nodename); + qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "qemu,fw-cfg-mmio"); - qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg", + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, base, 2, size); - qemu_fdt_setprop(vms->fdt, nodename, "dma-coherent", NULL, 0); + qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); g_free(nodename); return fw_cfg; }

-static void create_pcie_irq_map(const VirtMachineState *vms, +static void create_pcie_irq_map(const MachineState *ms, uint32_t gic_phandle, int first_irq, const char *nodename) { @@ -1205,10 +1213,10 @@ static void create_pcie_irq_map(const VirtMachineState *vms, } }

- qemu_fdt_setprop(vms->fdt, nodename, "interrupt-map", + qemu_fdt_setprop(ms->fdt, nodename, "interrupt-map", full_irq_map, sizeof(full_irq_map));

- qemu_fdt_setprop_cells(vms->fdt, nodename, "interrupt-map-mask", + qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupt-map-mask", cpu_to_be16(PCI_DEVFN(3, 0)), /* Slot 3 */ 0, 0, 0x7 /* PCI irq */); @@ -1225,6 +1233,7 @@ static void create_smmu(const VirtMachineState *vms, hwaddr size = vms->memmap[VIRT_SMMU].size; const char irq_names[] = "eventq\0priq\0cmdq-sync\0gerror"; DeviceState *dev; + MachineState *ms = MACHINE(vms);

if (vms->iommu != VIRT_IOMMU_SMMUV3 || !vms->iommu_phandle) { return; @@ -1242,26 +1251,26 @@ static void create_smmu(const VirtMachineState *vms, }

node = g_strdup_printf("/smmuv3@%" PRIx64, base); - qemu_fdt_add_subnode(vms->fdt, node); - qemu_fdt_setprop(vms->fdt, node, "compatible", compat, sizeof(compat)); - qemu_fdt_setprop_sized_cells(vms->fdt, node, "reg", 2, base, 2, size); + qemu_fdt_add_subnode(ms->fdt, node); + qemu_fdt_setprop(ms->fdt, node, "compatible", compat, sizeof(compat)); + qemu_fdt_setprop_sized_cells(ms->fdt, node, "reg", 2, base, 2, size);

- qemu_fdt_setprop_cells(vms->fdt, node, "interrupts", + qemu_fdt_setprop_cells(ms->fdt, node, "interrupts", GIC_FDT_IRQ_TYPE_SPI, irq , GIC_FDT_IRQ_FLAGS_EDGE_LO_HI, GIC_FDT_IRQ_TYPE_SPI, irq + 1, GIC_FDT_IRQ_FLAGS_EDGE_LO_HI, GIC_FDT_IRQ_TYPE_SPI, irq + 2, GIC_FDT_IRQ_FLAGS_EDGE_LO_HI, GIC_FDT_IRQ_TYPE_SPI, irq + 3, GIC_FDT_IRQ_FLAGS_EDGE_LO_HI);

- qemu_fdt_setprop(vms->fdt, node, "interrupt-names", irq_names, + qemu_fdt_setprop(ms->fdt, node, "interrupt-names", irq_names, sizeof(irq_names));

- qemu_fdt_setprop_cell(vms->fdt, node, "clocks", vms->clock_phandle); - qemu_fdt_setprop_string(vms->fdt, node, "clock-names", "apb_pclk"); - qemu_fdt_setprop(vms->fdt, node, "dma-coherent", NULL, 0); + qemu_fdt_setprop_cell(ms->fdt, node, "clocks", vms->clock_phandle); + qemu_fdt_setprop_string(ms->fdt, node, "clock-names", "apb_pclk"); + qemu_fdt_setprop(ms->fdt, node, "dma-coherent", NULL, 0);

- qemu_fdt_setprop_cell(vms->fdt, node, "#iommu-cells", 1); + qemu_fdt_setprop_cell(ms->fdt, node, "#iommu-cells", 1);

- qemu_fdt_setprop_cell(vms->fdt, node, "phandle", vms->iommu_phandle); + qemu_fdt_setprop_cell(ms->fdt, node, "phandle", vms->iommu_phandle); g_free(node); }

@@ -1269,22 +1278,23 @@ static void create_virtio_iommu_dt_bindings(VirtMachineState *vms) { const char compat[] = "virtio,pci-iommu"; uint16_t bdf = vms->virtio_iommu_bdf; + MachineState *ms = MACHINE(vms); char *node;

- vms->iommu_phandle = qemu_fdt_alloc_phandle(vms->fdt); + vms->iommu_phandle = qemu_fdt_alloc_phandle(ms->fdt);

node = g_strdup_printf("%s/virtio_iommu@%d", vms->pciehb_nodename, bdf); - qemu_fdt_add_subnode(vms->fdt, node); - qemu_fdt_setprop(vms->fdt, node, "compatible", compat, sizeof(compat)); - qemu_fdt_setprop_sized_cells(vms->fdt, node, "reg", + qemu_fdt_add_subnode(ms->fdt, node); + qemu_fdt_setprop(ms->fdt, node, "compatible", compat, sizeof(compat)); + qemu_fdt_setprop_sized_cells(ms->fdt, node, "reg", 1, bdf << 8, 1, 0, 1, 0, 1, 0, 1, 0);

- qemu_fdt_setprop_cell(vms->fdt, node, "#iommu-cells", 1); - qemu_fdt_setprop_cell(vms->fdt, node, "phandle", vms->iommu_phandle); + qemu_fdt_setprop_cell(ms->fdt, node, "#iommu-cells", 1); + qemu_fdt_setprop_cell(ms->fdt, node, "phandle", vms->iommu_phandle); g_free(node);

- qemu_fdt_setprop_cells(vms->fdt, vms->pciehb_nodename, "iommu-map", + qemu_fdt_setprop_cells(ms->fdt, vms->pciehb_nodename, "iommu-map", 0x0, vms->iommu_phandle, 0x0, bdf, bdf + 1, vms->iommu_phandle, bdf + 1, 0xffff - bdf); } @@ -1309,6 +1319,7 @@ static void create_pcie(VirtMachineState *vms) char *nodename; int i, ecam_id; PCIHostState *pci; + MachineState *ms = MACHINE(vms);

dev = qdev_new(TYPE_GPEX_HOST); sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); @@ -1369,27 +1380,27 @@ static void create_pcie(VirtMachineState *vms) }

nodename = vms->pciehb_nodename = g_strdup_printf("/pcie@%" PRIx64, base); - qemu_fdt_add_subnode(vms->fdt, nodename); - qemu_fdt_setprop_string(vms->fdt, nodename, + qemu_fdt_add_subnode(ms->fdt, nodename); + qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "pci-host-ecam-generic"); - qemu_fdt_setprop_string(vms->fdt, nodename, "device_type", "pci"); - qemu_fdt_setprop_cell(vms->fdt, nodename, "#address-cells", 3); - qemu_fdt_setprop_cell(vms->fdt, nodename, "#size-cells", 2); - qemu_fdt_setprop_cell(vms->fdt, nodename, "linux,pci-domain", 0); - qemu_fdt_setprop_cells(vms->fdt, nodename, "bus-range", 0, + qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "pci"); + qemu_fdt_setprop_cell(ms->fdt, nodename, "#address-cells", 3); + qemu_fdt_setprop_cell(ms->fdt, nodename, "#size-cells", 2); + qemu_fdt_setprop_cell(ms->fdt, nodename, "linux,pci-domain", 0); + qemu_fdt_setprop_cells(ms->fdt, nodename, "bus-range", 0, nr_pcie_buses - 1); - qemu_fdt_setprop(vms->fdt, nodename, "dma-coherent", NULL, 0); + qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0);

if (vms->msi_phandle) { - qemu_fdt_setprop_cells(vms->fdt, nodename, "msi-parent", + qemu_fdt_setprop_cells(ms->fdt, nodename, "msi-parent", vms->msi_phandle); }

- qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg", + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, base_ecam, 2, size_ecam);

if (vms->highmem) { - qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "ranges", + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "ranges", 1, FDT_PCI_RANGE_IOPORT, 2, 0, 2, base_pio, 2, size_pio, 1, FDT_PCI_RANGE_MMIO, 2, base_mmio, @@ -1398,23 +1409,23 @@ static void create_pcie(VirtMachineState *vms) 2, base_mmio_high, 2, base_mmio_high, 2, size_mmio_high); } else { - qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "ranges", + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "ranges", 1, FDT_PCI_RANGE_IOPORT, 2, 0, 2, base_pio, 2, size_pio, 1, FDT_PCI_RANGE_MMIO, 2, base_mmio, 2, base_mmio, 2, size_mmio); }

- qemu_fdt_setprop_cell(vms->fdt, nodename, "#interrupt-cells", 1); - create_pcie_irq_map(vms, vms->gic_phandle, irq, nodename); + qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 1); + create_pcie_irq_map(ms, vms->gic_phandle, irq, nodename);

if (vms->iommu) { - vms->iommu_phandle = qemu_fdt_alloc_phandle(vms->fdt); + vms->iommu_phandle = qemu_fdt_alloc_phandle(ms->fdt);

switch (vms->iommu) { case VIRT_IOMMU_SMMUV3: create_smmu(vms, vms->bus); - qemu_fdt_setprop_cells(vms->fdt, nodename, "iommu-map", + qemu_fdt_setprop_cells(ms->fdt, nodename, "iommu-map", 0x0, vms->iommu_phandle, 0x0, 0x10000); break; default: @@ -1466,17 +1477,18 @@ static void create_secure_ram(VirtMachineState *vms, char *nodename; hwaddr base = vms->memmap[VIRT_SECURE_MEM].base; hwaddr size = vms->memmap[VIRT_SECURE_MEM].size; + MachineState *ms = MACHINE(vms);

memory_region_init_ram(secram, NULL, "virt.secure-ram", size, &error_fatal); memory_region_add_subregion(secure_sysmem, base, secram);

nodename = g_strdup_printf("/secram@%" PRIx64, base); - qemu_fdt_add_subnode(vms->fdt, nodename); - qemu_fdt_setprop_string(vms->fdt, nodename, "device_type", "memory"); - qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg", 2, base, 2, size); - qemu_fdt_setprop_string(vms->fdt, nodename, "status", "disabled"); - qemu_fdt_setprop_string(vms->fdt, nodename, "secure-status", "okay"); + qemu_fdt_add_subnode(ms->fdt, nodename); + qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "memory"); + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, base, 2, size); + qemu_fdt_setprop_string(ms->fdt, nodename, "status", "disabled"); + qemu_fdt_setprop_string(ms->fdt, nodename, "secure-status", "okay");

if (secure_tag_sysmem) { create_tag_ram(secure_tag_sysmem, base, size, "mach-virt.secure-tag"); @@ -1489,9 +1501,11 @@ static void *machvirt_dtb(const struct arm_boot_info *binfo, int *fdt_size) { const VirtMachineState *board = container_of(binfo, VirtMachineState, bootinfo); + MachineState *ms = MACHINE(board); +

*fdt_size = board->fdt_size; - return board->fdt; + return ms->fdt; }

static void virt_build_smbios(VirtMachineState *vms) @@ -1539,7 +1553,7 @@ void virt_machine_done(Notifier *notifier, void *data) * while qemu takes charge of the qom stuff. */ if (info->dtb_filename == NULL) { - platform_bus_add_all_fdt_nodes(vms->fdt, "/intc", + platform_bus_add_all_fdt_nodes(ms->fdt, "/intc", vms->memmap[VIRT_PLATFORM_BUS].base, vms->memmap[VIRT_PLATFORM_BUS].size, vms->irqmap[VIRT_PLATFORM_BUS]);

This is a mechanical change to make the fdt available through MachineState.

Signed-off-by: Alex Bennée alex.bennee@linaro.org Reviewed-by: Alistair Francis alistair.francis@wdc.com Reviewed-by: Philippe Mathieu-Daudé philmd@redhat.com Message-Id: 20201021170842.25762-3-alex.bennee@linaro.org Message-Id: 20201105175153.30489-3-alex.bennee@linaro.org Signed-off-by: Alex Bennée alex.bennee@linaro.org --- include/hw/riscv/virt.h | 1 - hw/riscv/virt.c | 20 ++++++++++---------- 2 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/include/hw/riscv/virt.h b/include/hw/riscv/virt.h index 84b7a3848f..632da52018 100644 --- a/include/hw/riscv/virt.h +++ b/include/hw/riscv/virt.h @@ -41,7 +41,6 @@ struct RISCVVirtState { DeviceState *plic[VIRT_SOCKETS_MAX]; PFlashCFI01 *flash[2];

- void *fdt; int fdt_size; };

diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index 2299b3a6be..8d0ba72d78 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -189,14 +189,14 @@ static void create_fdt(RISCVVirtState *s, const struct MemmapEntry *memmap, hwaddr flashbase = virt_memmap[VIRT_FLASH].base;

if (mc->dtb) { - fdt = s->fdt = load_device_tree(mc->dtb, &s->fdt_size); + fdt = mc->fdt = load_device_tree(mc->dtb, &s->fdt_size); if (!fdt) { error_report("load_device_tree() failed"); exit(1); } goto update_bootargs; } else { - fdt = s->fdt = create_device_tree(&s->fdt_size); + fdt = mc->fdt = create_device_tree(&s->fdt_size); if (!fdt) { error_report("create_device_tree() failed"); exit(1); @@ -434,12 +434,12 @@ static void create_fdt(RISCVVirtState *s, const struct MemmapEntry *memmap, g_free(name);

name = g_strdup_printf("/soc/flash@%" PRIx64, flashbase); - qemu_fdt_add_subnode(s->fdt, name); - qemu_fdt_setprop_string(s->fdt, name, "compatible", "cfi-flash"); - qemu_fdt_setprop_sized_cells(s->fdt, name, "reg", + qemu_fdt_add_subnode(mc->fdt, name); + qemu_fdt_setprop_string(mc->fdt, name, "compatible", "cfi-flash"); + qemu_fdt_setprop_sized_cells(mc->fdt, name, "reg", 2, flashbase, 2, flashsize, 2, flashbase + flashsize, 2, flashsize); - qemu_fdt_setprop_cell(s->fdt, name, "bank-width", 4); + qemu_fdt_setprop_cell(mc->fdt, name, "bank-width", 4); g_free(name);

update_bootargs: @@ -631,9 +631,9 @@ static void virt_machine_init(MachineState *machine) hwaddr end = riscv_load_initrd(machine->initrd_filename, machine->ram_size, kernel_entry, &start); - qemu_fdt_setprop_cell(s->fdt, "/chosen", + qemu_fdt_setprop_cell(machine->fdt, "/chosen", "linux,initrd-start", start); - qemu_fdt_setprop_cell(s->fdt, "/chosen", "linux,initrd-end", + qemu_fdt_setprop_cell(machine->fdt, "/chosen", "linux,initrd-end", end); } } else { @@ -654,12 +654,12 @@ static void virt_machine_init(MachineState *machine)

/* Compute the fdt load address in dram */ fdt_load_addr = riscv_load_fdt(memmap[VIRT_DRAM].base, - machine->ram_size, s->fdt); + machine->ram_size, machine->fdt); /* load the reset vector */ riscv_setup_rom_reset_vec(machine, &s->soc[0], start_addr, virt_memmap[VIRT_MROM].base, virt_memmap[VIRT_MROM].size, kernel_entry, - fdt_load_addr, s->fdt); + fdt_load_addr, machine->fdt);

/* SiFive Test MMIO device */ sifive_test_create(memmap[VIRT_TEST].base);

We might as well surface this useful information in the manual so users can find it easily. It is a fairly simple conversion to rst with the only textual fixes being QemuOps to QemuOpts.

Signed-off-by: Alex Bennée alex.bennee@linaro.org Message-Id: 20201105175153.30489-6-alex.bennee@linaro.org

--- v2 - fix whitespace - update MAINTAINERS --- docs/generic-loader.txt | 92 -------------------------- docs/system/generic-loader.rst | 117 +++++++++++++++++++++++++++++++++ docs/system/index.rst | 1 + MAINTAINERS | 2 +- 4 files changed, 119 insertions(+), 93 deletions(-) delete mode 100644 docs/generic-loader.txt create mode 100644 docs/system/generic-loader.rst

diff --git a/docs/generic-loader.txt b/docs/generic-loader.txt deleted file mode 100644 index a9603a2af7..0000000000 --- a/docs/generic-loader.txt +++ /dev/null @@ -1,92 +0,0 @@ -Copyright (c) 2016 Xilinx Inc. - -This work is licensed under the terms of the GNU GPL, version 2 or later. See -the COPYING file in the top-level directory. - - -The 'loader' device allows the user to load multiple images or values into -QEMU at startup. - -Loading Data into Memory Values -------------------------------- -The loader device allows memory values to be set from the command line. This -can be done by following the syntax below: - - -device loader,addr=<addr>,data=<data>,data-len=<data-len> - [,data-be=<data-be>][,cpu-num=<cpu-num>] - - <addr> - The address to store the data in. - <data> - The value to be written to the address. The maximum size of - the data is 8 bytes. - <data-len> - The length of the data in bytes. This argument must be - included if the data argument is. - <data-be> - Set to true if the data to be stored on the guest should be - written as big endian data. The default is to write little - endian data. - <cpu-num> - The number of the CPU's address space where the data should - be loaded. If not specified the address space of the first - CPU is used. - -All values are parsed using the standard QemuOps parsing. This allows the user -to specify any values in any format supported. By default the values -will be parsed as decimal. To use hex values the user should prefix the number -with a '0x'. - -An example of loading value 0x8000000e to address 0xfd1a0104 is: - -device loader,addr=0xfd1a0104,data=0x8000000e,data-len=4 - -Setting a CPU's Program Counter -------------------------------- -The loader device allows the CPU's PC to be set from the command line. This -can be done by following the syntax below: - - -device loader,addr=<addr>,cpu-num=<cpu-num> - - <addr> - The value to use as the CPU's PC. - <cpu-num> - The number of the CPU whose PC should be set to the - specified value. - -All values are parsed using the standard QemuOps parsing. This allows the user -to specify any values in any format supported. By default the values -will be parsed as decimal. To use hex values the user should prefix the number -with a '0x'. - -An example of setting CPU 0's PC to 0x8000 is: - -device loader,addr=0x8000,cpu-num=0 - -Loading Files -------------- -The loader device also allows files to be loaded into memory. It can load ELF, -U-Boot, and Intel HEX executable formats as well as raw images. The syntax is -shown below: - - -device loader,file=<file>[,addr=<addr>][,cpu-num=<cpu-num>][,force-raw=<raw>] - - <file> - A file to be loaded into memory - <addr> - The memory address where the file should be loaded. This is - required for raw images and ignored for non-raw files. - <cpu-num> - This specifies the CPU that should be used. This is an - optional argument and will cause the CPU's PC to be set to - the memory address where the raw file is loaded or the entry - point specified in the executable format header. This option - should only be used for the boot image. - This will also cause the image to be written to the specified - CPU's address space. If not specified, the default is CPU 0. - <force-raw> - Setting force-raw=on forces the file to be treated as a raw - image. This can be used to load supported executable formats - as if they were raw. - -All values are parsed using the standard QemuOps parsing. This allows the user -to specify any values in any format supported. By default the values -will be parsed as decimal. To use hex values the user should prefix the number -with a '0x'. - -An example of loading an ELF file which CPU0 will boot is shown below: - -device loader,file=./images/boot.elf,cpu-num=0 - -Restrictions and ToDos ----------------------- - - At the moment it is just assumed that if you specify a cpu-num then you - want to set the PC as well. This might not always be the case. In future - the internal state 'set_pc' (which exists in the generic loader now) should - be exposed to the user so that they can choose if the PC is set or not. diff --git a/docs/system/generic-loader.rst b/docs/system/generic-loader.rst new file mode 100644 index 0000000000..6bf8a4eb48 --- /dev/null +++ b/docs/system/generic-loader.rst @@ -0,0 +1,117 @@ +.. + Copyright (c) 2016, Xilinx Inc. + +This work is licensed under the terms of the GNU GPL, version 2 or later. See +the COPYING file in the top-level directory. + +Generic Loader +-------------- + +The 'loader' device allows the user to load multiple images or values into +QEMU at startup. + +Loading Data into Memory Values +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +The loader device allows memory values to be set from the command line. This +can be done by following the syntax below:: + + -device loader,addr=<addr>,data=<data>,data-len=<data-len> \ + [,data-be=<data-be>][,cpu-num=<cpu-num>] + +``<addr>`` + The address to store the data in. + +``<data>`` + The value to be written to the address. The maximum size of the data + is 8 bytes. + +``<data-len>`` + The length of the data in bytes. This argument must be included if + the data argument is. + +``<data-be>`` + Set to true if the data to be stored on the guest should be written + as big endian data. The default is to write little endian data. + +``<cpu-num>`` + The number of the CPU's address space where the data should be + loaded. If not specified the address space of the first CPU is used. + +All values are parsed using the standard QemuOps parsing. This allows the user +to specify any values in any format supported. By default the values +will be parsed as decimal. To use hex values the user should prefix the number +with a '0x'. + +An example of loading value 0x8000000e to address 0xfd1a0104 is:: + + -device loader,addr=0xfd1a0104,data=0x8000000e,data-len=4 + +Setting a CPU's Program Counter +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +The loader device allows the CPU's PC to be set from the command line. This +can be done by following the syntax below:: + + -device loader,addr=<addr>,cpu-num=<cpu-num> + +``<addr>`` + The value to use as the CPU's PC. + +``<cpu-num>`` + The number of the CPU whose PC should be set to the specified value. + +All values are parsed using the standard QemuOpts parsing. This allows the user +to specify any values in any format supported. By default the values +will be parsed as decimal. To use hex values the user should prefix the number +with a '0x'. + +An example of setting CPU 0's PC to 0x8000 is:: + + -device loader,addr=0x8000,cpu-num=0 + +Loading Files +^^^^^^^^^^^^^ + +The loader device also allows files to be loaded into memory. It can load ELF, +U-Boot, and Intel HEX executable formats as well as raw images. The syntax is +shown below: + + -device loader,file=<file>[,addr=<addr>][,cpu-num=<cpu-num>][,force-raw=<raw>] + +``<file>`` + A file to be loaded into memory + +``<addr>`` + The memory address where the file should be loaded. This is required + for raw images and ignored for non-raw files. + +``<cpu-num>`` + This specifies the CPU that should be used. This is an + optional argument and will cause the CPU's PC to be set to the + memory address where the raw file is loaded or the entry point + specified in the executable format header. This option should only + be used for the boot image. This will also cause the image to be + written to the specified CPU's address space. If not specified, the + default is CPU 0. <force-raw> - Setting force-raw=on forces the file + to be treated as a raw image. This can be used to load supported + executable formats as if they were raw. + +All values are parsed using the standard QemuOpts parsing. This allows the user +to specify any values in any format supported. By default the values +will be parsed as decimal. To use hex values the user should prefix the number +with a '0x'. + +An example of loading an ELF file which CPU0 will boot is shown below:: + + -device loader,file=./images/boot.elf,cpu-num=0 + +Restrictions and ToDos +^^^^^^^^^^^^^^^^^^^^^^ + +At the moment it is just assumed that if you specify a cpu-num then +you want to set the PC as well. This might not always be the case. In +future the internal state 'set_pc' (which exists in the generic loader +now) should be exposed to the user so that they can choose if the PC +is set or not. + + diff --git a/docs/system/index.rst b/docs/system/index.rst index 625b494372..cee1c83540 100644 --- a/docs/system/index.rst +++ b/docs/system/index.rst @@ -25,6 +25,7 @@ Contents: usb ivshmem linuxboot + generic-loader vnc-security tls gdb diff --git a/MAINTAINERS b/MAINTAINERS index ab6877dae6..774b3ca7a5 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1991,7 +1991,7 @@ M: Alistair Francis alistair@alistair23.me S: Maintained F: hw/core/generic-loader.c F: include/hw/core/generic-loader.h -F: docs/generic-loader.txt +F: docs/system/generic-loader.rst

Guest Loader M: Alex Bennée alex.bennee@linaro.org

Signed-off-by: Alex Bennée alex.bennee@linaro.org Message-Id: 20201105175153.30489-7-alex.bennee@linaro.org

--- v2 - add docs and MAINTAINERS --- docs/system/guest-loader.rst | 54 ++++++++++++++++++++++++++++++++++++ docs/system/index.rst | 1 + MAINTAINERS | 1 + 3 files changed, 56 insertions(+) create mode 100644 docs/system/guest-loader.rst

diff --git a/docs/system/guest-loader.rst b/docs/system/guest-loader.rst new file mode 100644 index 0000000000..37d03cbd89 --- /dev/null +++ b/docs/system/guest-loader.rst @@ -0,0 +1,54 @@ +.. + Copyright (c) 2020, Linaro + +Guest Loader +------------ + +The guest loader is similar to the `generic-loader` although it is +aimed at a particular use case of loading hypervisor guests. This is +useful for debugging hypervisors without having to jump through the +hoops of firmware and boot-loaders. + +The guest loader does two things: + + - load blobs (kernels and initial ram disks) into memory + - sets platform FDT data so hypervisors can find and boot them + +This is what is typically done by a boot-loader like grub using it's +multi-boot capability. A typical example would look like: + +.. parsed-literal:: + + |qemu_system| -kernel ~/xen.git/xen/xen \ + -append "dom0_mem=1G,max:1G loglvl=all guest_loglvl=all" \ + -device guest-loader,addr=0x42000000,kernel=Image,bootargs="root=/dev/sda2 ro console=hvc0 earlyprintk=xen" \ + -device guest-loader,addr=0x47000000,initrd=rootfs.cpio + +In the above example the Xen hypervisor is loaded by the -kernel +parameter and passed it's boot arguments via -append. The Dom0 guest +is loaded into the areas of memory. Each blob will get +`/chosen/module@<addr>` entry in the FDT to indicate it's location and +size. Additional information can be passed with by using additional +arguments. + +Currently the only supported machines which use FDT data to boot are +the ARM and RiscV `virt` machines. + +Arguments +^^^^^^^^^ + +The full syntax of the guest-loader is:: + + -device guest-loader,addr=<addr>[,kernel=<file>,[bootargs=<args>]][,initrd=<file>] + +``addr=<addr>`` + This is mandatory and indicates the start address of the blob. + +``kernel|initrd=<file>`` + Indicates the filename of the kernel or initrd blob. Both blobs will + have the "multiboot,module" compatibility string as well as + "multiboot,kernel" or "multiboot,ramdisk" as appropriate. + +``bootargs=<args>`` + This is an optional field for kernel blobs which will pass command + like via the `/chosen/module@<addr>/bootargs` node. diff --git a/docs/system/index.rst b/docs/system/index.rst index cee1c83540..6ad9c93806 100644 --- a/docs/system/index.rst +++ b/docs/system/index.rst @@ -26,6 +26,7 @@ Contents: ivshmem linuxboot generic-loader + guest-loader vnc-security tls gdb diff --git a/MAINTAINERS b/MAINTAINERS index 774b3ca7a5..853f174fcf 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1997,6 +1997,7 @@ Guest Loader M: Alex Bennée alex.bennee@linaro.org S: Maintained F: hw/core/guest-loader.c +F: docs/system/guest-loader.rst

Intel Hexadecimal Object File Loader M: Su Hang suhang16@mails.ucas.ac.cn

These tests make sure we can boot the Xen hypervisor with a Dom0 kernel using the guest-loader. We currently have to use a kernel I built myself because there are issues using the Debian kernel images.

Signed-off-by: Alex Bennée alex.bennee@linaro.org --- MAINTAINERS | 1 + tests/acceptance/boot_xen.py | 117 +++++++++++++++++++++++++++++++++++ 2 files changed, 118 insertions(+) create mode 100644 tests/acceptance/boot_xen.py

diff --git a/MAINTAINERS b/MAINTAINERS index 853f174fcf..537ca7a6f3 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1998,6 +1998,7 @@ M: Alex Bennée alex.bennee@linaro.org S: Maintained F: hw/core/guest-loader.c F: docs/system/guest-loader.rst +F: tests/acceptance/boot_xen.py

Intel Hexadecimal Object File Loader M: Su Hang suhang16@mails.ucas.ac.cn diff --git a/tests/acceptance/boot_xen.py b/tests/acceptance/boot_xen.py new file mode 100644 index 0000000000..8c7e091d40 --- /dev/null +++ b/tests/acceptance/boot_xen.py @@ -0,0 +1,117 @@ +# Functional test that boots a Xen hypervisor with a domU kernel and +# checks the console output is vaguely sane . +# +# Copyright (c) 2020 Linaro +# +# Author: +# Alex Bennée alex.bennee@linaro.org +# +# SPDX-License-Identifier: GPL-2.0-or-later +# +# This work is licensed under the terms of the GNU GPL, version 2 or +# later. See the COPYING file in the top-level directory. + +import os + +from avocado import skipIf +from avocado_qemu import wait_for_console_pattern +from boot_linux_console import LinuxKernelTest + + +class BootXenBase(LinuxKernelTest): + """ + Boots a Xen hypervisor with a Linux DomU kernel. + """ + + timeout = 90 + XEN_COMMON_COMMAND_LINE = 'dom0_mem=128M loglvl=all guest_loglvl=all' + + def fetch_guest_kernel(self): + # Using my own built kernel - which works + kernel_url = ('https://fileserver.linaro.org/' + 's/JSsewXGZ6mqxPr5/download?path=%2F&files=' + 'linux-5.9.9-arm64-ajb') + kernel_sha1 = '4f92bc4b9f88d5ab792fa7a43a68555d344e1b83' + kernel_path = self.fetch_asset(kernel_url, + asset_hash=kernel_sha1) + + return kernel_path + + def launch_xen(self, xen_path): + """ + Launch Xen with a dom0 guest kernel + """ + self.log.info("launch with xen_path: %s", xen_path) + kernel_path = self.fetch_guest_kernel() + + self.vm.set_console() + + xen_command_line = self.XEN_COMMON_COMMAND_LINE + self.vm.add_args('-machine', 'virtualization=on', + '-cpu', 'cortex-a57', + '-m', '768', + '-kernel', xen_path, + '-append', xen_command_line, + '-device', + "guest-loader,addr=0x47000000,kernel=%s,bootargs=console=hvc0" + % (kernel_path)) + + self.vm.launch() + + console_pattern = 'VFS: Cannot open root device' + wait_for_console_pattern(self, console_pattern, "Panic on CPU 0:") + + +class BootXen(BootXenBase): + + @skipIf(os.getenv('GITLAB_CI'), 'Running on GitLab') + def test_arm64_xen_411_and_dom0(self): + """ + :avocado: tags=arch:aarch64 + :avocado: tags=accel:tcg + :avocado: tags=cpu:cortex-a57 + :avocado: tags=machine:virt + """ + xen_url = ('https://deb.debian.org/debian/' + 'pool/main/x/xen/' + 'xen-hypervisor-4.11-arm64_4.11.4+37-g3263f257ca-1_arm64.deb') + xen_sha1 = '034e634d4416adbad1212d59b62bccdcda63e62a' + xen_deb = self.fetch_asset(xen_url, asset_hash=xen_sha1) + xen_path = self.extract_from_deb(xen_deb, "/boot/xen-4.11-arm64") + + self.launch_xen(xen_path) + + @skipIf(os.getenv('GITLAB_CI'), 'Running on GitLab') + def test_arm64_xen_414_and_dom0(self): + """ + :avocado: tags=arch:aarch64 + :avocado: tags=accel:tcg + :avocado: tags=cpu:cortex-a57 + :avocado: tags=machine:virt + """ + xen_url = ('https://deb.debian.org/debian/' + 'pool/main/x/xen/' + 'xen-hypervisor-4.14-arm64_4.14.0+80-gd101b417b7-1_arm64.deb') + xen_sha1 = 'b9d209dd689ed2b393e625303a225badefec1160' + xen_deb = self.fetch_asset(xen_url, asset_hash=xen_sha1) + xen_path = self.extract_from_deb(xen_deb, "/boot/xen-4.14-arm64") + + self.launch_xen(xen_path) + + @skipIf(os.getenv('GITLAB_CI'), 'Running on GitLab') + def test_arm64_xen_415_and_dom0(self): + """ + :avocado: tags=arch:aarch64 + :avocado: tags=accel:tcg + :avocado: tags=cpu:cortex-a57 + :avocado: tags=machine:virt + """ + + xen_url = ('https://fileserver.linaro.org/' + 's/JSsewXGZ6mqxPr5/download' + '?path=%2F&files=xen-upstream-4.15-unstable.deb') + xen_sha1 = 'fc191172b85cf355abb95d275a24cc0f6d6579d8' + xen_deb = self.fetch_asset(xen_url, asset_hash=xen_sha1) + xen_path = self.extract_from_deb(xen_deb, "/boot/xen-4.15-unstable") + + self.launch_xen(xen_path)