haraldwolff/qemu-patch-raspberry4
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Merge branch 'ppc-1.0' of git://repo.or.cz/qemu/agraf

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* 'ppc-1.0' of git://repo.or.cz/qemu/agraf:
  pseries: Fix qdev.id handling in the VIO bus code
  pseries: Allow kernel's early debug output to work
  pseries: Default reg for vty should be SPAPR_VTY_BASE_ADDRESS
  pseries: Check we have a chardev in spapr_vty_init()
  pseries: Fix buggy spapr_vio_find_by_reg()
  pseries: Correct RAM size check for SLOF
  PPC: Fix for the gdb single step problem on an rfi instruction
  tcg-ppc64: Fix compile errors for userspace only builds with gcc 4.6
  pseries: Fix initialization of sPAPREnvironment structure
This commit is contained in:
Blue Swirl 2011-11-19 11:17:11 +00:00
parent 15d4a72338 1e34d859d0
commit 05a86f23e5
5 changed files with 84 additions and 23 deletions
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10
hw/spapr.c
View file

@ -57,7 +57,7 @@
#define FW_MAX_SIZE 0x400000
#define FW_FILE_NAME "slof.bin"
#define MIN_RAM_SLOF 512UL
#define MIN_RMA_SLOF 128UL
#define TIMEBASE_FREQ 512000000ULL
@ -407,7 +407,9 @@ static void ppc_spapr_init(ram_addr_t ram_size,
long pteg_shift = 17;
char *filename;
spapr = g_malloc(sizeof(*spapr));
spapr = g_malloc0(sizeof(*spapr));
QLIST_INIT(&spapr->phbs);
cpu_ppc_hypercall = emulate_spapr_hypercall;
/* Allocate RMA if necessary */
@ -560,9 +562,9 @@ static void ppc_spapr_init(ram_addr_t ram_size,
spapr->entry_point = KERNEL_LOAD_ADDR;
} else {
if (ram_size < (MIN_RAM_SLOF << 20)) {
if (rma_size < (MIN_RMA_SLOF << 20)) {
fprintf(stderr, "qemu: pSeries SLOF firmware requires >= "
"%ldM guest RAM\n", MIN_RAM_SLOF);
"%ldM guest RMA (Real Mode Area memory)\n", MIN_RMA_SLOF);
exit(1);
}
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, FW_FILE_NAME);

40
hw/spapr_vio.c
View file

@ -66,11 +66,24 @@ VIOsPAPRDevice *spapr_vio_find_by_reg(VIOsPAPRBus *bus, uint32_t reg)
QTAILQ_FOREACH(qdev, &bus->bus.children, sibling) {
dev = (VIOsPAPRDevice *)qdev;
if (dev->reg == reg) {
break;
return dev;
}
}
return dev;
return NULL;
}
static char *vio_format_dev_name(VIOsPAPRDevice *dev)
{
VIOsPAPRDeviceInfo *info = (VIOsPAPRDeviceInfo *)dev->qdev.info;
char *name;
/* Device tree style name device@reg */
if (asprintf(&name, "%s@%x", info->dt_name, dev->reg) < 0) {
return NULL;
}
return name;
}
#ifdef CONFIG_FDT
@ -78,15 +91,21 @@ static int vio_make_devnode(VIOsPAPRDevice *dev,
void *fdt)
{
VIOsPAPRDeviceInfo *info = (VIOsPAPRDeviceInfo *)dev->qdev.info;
int vdevice_off, node_off;
int ret;
int vdevice_off, node_off, ret;
char *dt_name;
vdevice_off = fdt_path_offset(fdt, "/vdevice");
if (vdevice_off < 0) {
return vdevice_off;
}
node_off = fdt_add_subnode(fdt, vdevice_off, dev->qdev.id);
dt_name = vio_format_dev_name(dev);
if (!dt_name) {
return -ENOMEM;
}
node_off = fdt_add_subnode(fdt, vdevice_off, dt_name);
free(dt_name);
if (node_off < 0) {
return node_off;
}
@ -608,12 +627,15 @@ static int spapr_vio_busdev_init(DeviceState *qdev, DeviceInfo *qinfo)
VIOsPAPRDevice *dev = (VIOsPAPRDevice *)qdev;
char *id;
if (asprintf(&id, "%s@%x", info->dt_name, dev->reg) < 0) {
return -1;
/* Don't overwrite ids assigned on the command line */
if (!dev->qdev.id) {
id = vio_format_dev_name(dev);
if (!id) {
return -1;
}
dev->qdev.id = id;
}
dev->qdev.id = id;
dev->qirq = spapr_allocate_irq(dev->vio_irq_num, &dev->vio_irq_num);
if (!dev->qirq) {
return -1;

39
hw/spapr_vty.c
View file

@ -58,12 +58,20 @@ static int spapr_vty_init(VIOsPAPRDevice *sdev)
{
VIOsPAPRVTYDevice *dev = (VIOsPAPRVTYDevice *)sdev;
if (!dev->chardev) {
fprintf(stderr, "spapr-vty: Can't create vty without a chardev!\n");
exit(1);
}
qemu_chr_add_handlers(dev->chardev, vty_can_receive,
vty_receive, NULL, dev);
return 0;
}
/* Forward declaration */
static VIOsPAPRDevice *vty_lookup(sPAPREnvironment *spapr, target_ulong reg);
static target_ulong h_put_term_char(CPUState *env, sPAPREnvironment *spapr,
target_ulong opcode, target_ulong *args)
{
@ -71,9 +79,10 @@ static target_ulong h_put_term_char(CPUState *env, sPAPREnvironment *spapr,
target_ulong len = args[1];
target_ulong char0_7 = args[2];
target_ulong char8_15 = args[3];
VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
VIOsPAPRDevice *sdev;
uint8_t buf[16];
sdev = vty_lookup(spapr, reg);
if (!sdev) {
return H_PARAMETER;
}
@ -97,9 +106,10 @@ static target_ulong h_get_term_char(CPUState *env, sPAPREnvironment *spapr,
target_ulong *len = args + 0;
target_ulong *char0_7 = args + 1;
target_ulong *char8_15 = args + 2;
VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
VIOsPAPRDevice *sdev;
uint8_t buf[16];
sdev = vty_lookup(spapr, reg);
if (!sdev) {
return H_PARAMETER;
}
@ -140,12 +150,35 @@ static VIOsPAPRDeviceInfo spapr_vty = {
.qdev.name = "spapr-vty",
.qdev.size = sizeof(VIOsPAPRVTYDevice),
.qdev.props = (Property[]) {
DEFINE_SPAPR_PROPERTIES(VIOsPAPRVTYDevice, sdev, 0, 0),
DEFINE_SPAPR_PROPERTIES(VIOsPAPRVTYDevice, sdev, SPAPR_VTY_BASE_ADDRESS, 0),
DEFINE_PROP_CHR("chardev", VIOsPAPRVTYDevice, chardev),
DEFINE_PROP_END_OF_LIST(),
},
};
static VIOsPAPRDevice *vty_lookup(sPAPREnvironment *spapr, target_ulong reg)
{
VIOsPAPRDevice *sdev;
sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
if (!sdev && reg == 0) {
DeviceState *qdev;
/* Hack for kernel early debug, which always specifies reg==0.
* We search all VIO devices, and grab the first available vty
* device. This attempts to mimic existing PowerVM behaviour
* (early debug does work there, despite having no vty with
* reg==0. */
QTAILQ_FOREACH(qdev, &spapr->vio_bus->bus.children, sibling) {
if (qdev->info == &spapr_vty.qdev) {
return DO_UPCAST(VIOsPAPRDevice, qdev, qdev);
}
}
}
return sdev;
}
static void spapr_vty_register(void)
{
spapr_vio_bus_register_withprop(&spapr_vty);

4
target-ppc/translate.c
View file

@ -298,8 +298,10 @@ static inline void gen_debug_exception(DisasContext *ctx)
{
TCGv_i32 t0;
if (ctx->exception != POWERPC_EXCP_BRANCH)
if ((ctx->exception != POWERPC_EXCP_BRANCH) &&
(ctx->exception != POWERPC_EXCP_SYNC)) {
gen_update_nip(ctx, ctx->nip);
}
t0 = tcg_const_i32(EXCP_DEBUG);
gen_helper_raise_exception(t0);
tcg_temp_free_i32(t0);

14
tcg/ppc64/tcg-target.c
View file

@ -616,18 +616,19 @@ static void tcg_out_tlb_read (TCGContext *s, int r0, int r1, int r2,
static void tcg_out_qemu_ld (TCGContext *s, const TCGArg *args, int opc)
{
int addr_reg, data_reg, r0, r1, rbase, mem_index, s_bits, bswap;
int addr_reg, data_reg, r0, r1, rbase, bswap;
#ifdef CONFIG_SOFTMMU
int r2;
int r2, mem_index, s_bits;
void *label1_ptr, *label2_ptr;
#endif
data_reg = *args++;
addr_reg = *args++;
#ifdef CONFIG_SOFTMMU
mem_index = *args;
s_bits = opc & 3;
#ifdef CONFIG_SOFTMMU
r0 = 3;
r1 = 4;
r2 = 0;
@ -763,17 +764,18 @@ static void tcg_out_qemu_ld (TCGContext *s, const TCGArg *args, int opc)
static void tcg_out_qemu_st (TCGContext *s, const TCGArg *args, int opc)
{
int addr_reg, r0, r1, rbase, data_reg, mem_index, bswap;
int addr_reg, r0, r1, rbase, data_reg, bswap;
#ifdef CONFIG_SOFTMMU
int r2;
int r2, mem_index;
void *label1_ptr, *label2_ptr;
#endif
data_reg = *args++;
addr_reg = *args++;
mem_index = *args;
#ifdef CONFIG_SOFTMMU
mem_index = *args;
r0 = 3;
r1 = 4;
r2 = 0;