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RISC-V Changes for 3.2, Part 1

Browse source 
This pull request contains the first set of RISC-V patches I'd like to
 target for the 3.2 development cycle.  It's really just a collection of
 bug fixes with one major new feature: PCIe can now be attached to RISC-V
 guests.
 
 This has passed my usual test of booting the latest Linux RC into a
 Fedora disk image on the virt machine.
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Merge remote-tracking branch 'remotes/palmer/tags/riscv-for-master-3.2-part1' into staging

RISC-V Changes for 3.2, Part 1

This pull request contains the first set of RISC-V patches I'd like to
target for the 3.2 development cycle.  It's really just a collection of
bug fixes with one major new feature: PCIe can now be attached to RISC-V
guests.

This has passed my usual test of booting the latest Linux RC into a
Fedora disk image on the virt machine.

# gpg: Signature made Fri 21 Dec 2018 16:01:29 GMT
# gpg:                using RSA key EF4CA1502CCBAB41
# gpg: Good signature from "Palmer Dabbelt <palmer@dabbelt.com>"
# gpg:                 aka "Palmer Dabbelt <palmer@sifive.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 00CE 76D1 8349 60DF CE88  6DF8 EF4C A150 2CCB AB41

* remotes/palmer/tags/riscv-for-master-3.2-part1:
  MAINTAINERS: Mark RISC-V as Supported
  riscv/cpu: use device_class_set_parent_realize
  target/riscv/pmp.c: Fix pmp_decode_napot()
  sifive_uart: Implement interrupt pending register
  RISC-V: Enable second UART on sifive_e and sifive_u
  RISC-V: Fix PLIC pending bitfield reads
  RISC-V: Fix CLINT timecmp low 32-bit writes
  RISC-V: Add hartid and \n to interrupt logging
  sifive_u: Set 'clock-frequency' DT property for SiFive UART
  sifive_u: Add clock DT node for GEM ethernet
  riscv: Enable VGA and PCIE_VGA
  hw/riscv/virt: Connect the gpex PCIe
  hw/riscv/virt: Adjust memory layout spacing
  hw/riscv/virt: Increase the number of interrupts

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2019-01-03 13:26:30 +00:00
parent 1b3e80082b 7b91ae7d79
commit 20d6c7312f
15 changed files with 231 additions and 43 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
MAINTAINERS
View file

@ -262,7 +262,7 @@ M: Alistair Francis <Alistair.Francis@wdc.com>
M: Sagar Karandikar <sagark@eecs.berkeley.edu>
M: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
L: qemu-riscv@nongnu.org
S: Maintained
S: Supported
F: target/riscv/
F: hw/riscv/
F: include/hw/riscv/

8
default-configs/riscv32-softmmu.mak
View file

@ -1,7 +1,13 @@
# Default configuration for riscv-softmmu
include pci.mak
CONFIG_SERIAL=y
CONFIG_VIRTIO_MMIO=y
include virtio.mak
CONFIG_CADENCE=y
CONFIG_PCI_GENERIC=y
CONFIG_VGA=y
CONFIG_VGA_PCI=y

8
default-configs/riscv64-softmmu.mak
View file

@ -1,7 +1,13 @@
# Default configuration for riscv-softmmu
include pci.mak
CONFIG_SERIAL=y
CONFIG_VIRTIO_MMIO=y
include virtio.mak
CONFIG_CADENCE=y
CONFIG_PCI_GENERIC=y
CONFIG_VGA=y
CONFIG_VGA_PCI=y

8
hw/riscv/sifive_clint.c
View file

@ -146,15 +146,15 @@ static void sifive_clint_write(void *opaque, hwaddr addr, uint64_t value,
error_report("clint: invalid timecmp hartid: %zu", hartid);
} else if ((addr & 0x7) == 0) {
/* timecmp_lo */
uint64_t timecmp = env->timecmp;
uint64_t timecmp_hi = env->timecmp >> 32;
sifive_clint_write_timecmp(RISCV_CPU(cpu),
timecmp << 32 | (value & 0xFFFFFFFF));
timecmp_hi << 32 | (value & 0xFFFFFFFF));
return;
} else if ((addr & 0x7) == 4) {
/* timecmp_hi */
uint64_t timecmp = env->timecmp;
uint64_t timecmp_lo = env->timecmp;
sifive_clint_write_timecmp(RISCV_CPU(cpu),
value << 32 | (timecmp & 0xFFFFFFFF));
value << 32 | (timecmp_lo & 0xFFFFFFFF));
} else {
error_report("clint: invalid timecmp write: %08x", (uint32_t)addr);
}

5
hw/riscv/sifive_e.c
View file

@ -192,9 +192,8 @@ static void riscv_sifive_e_soc_realize(DeviceState *dev, Error **errp)
memmap[SIFIVE_E_QSPI0].base, memmap[SIFIVE_E_QSPI0].size);
sifive_mmio_emulate(sys_mem, "riscv.sifive.e.pwm0",
memmap[SIFIVE_E_PWM0].base, memmap[SIFIVE_E_PWM0].size);
/* sifive_uart_create(sys_mem, memmap[SIFIVE_E_UART1].base,
serial_hd(1), qdev_get_gpio_in(DEVICE(s->plic),
SIFIVE_E_UART1_IRQ)); */
sifive_uart_create(sys_mem, memmap[SIFIVE_E_UART1].base,
serial_hd(1), qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_E_UART1_IRQ));
sifive_mmio_emulate(sys_mem, "riscv.sifive.e.qspi1",
memmap[SIFIVE_E_QSPI1].base, memmap[SIFIVE_E_QSPI1].size);
sifive_mmio_emulate(sys_mem, "riscv.sifive.e.pwm1",

2
hw/riscv/sifive_plic.c
View file

@ -214,7 +214,7 @@ static uint64_t sifive_plic_read(void *opaque, hwaddr addr, unsigned size)
} else if (addr >= plic->pending_base && /* 1 bit per source */
addr < plic->pending_base + (plic->num_sources >> 3))
{
uint32_t word = (addr - plic->priority_base) >> 2;
uint32_t word = (addr - plic->pending_base) >> 2;
if (RISCV_DEBUG_PLIC) {
qemu_log("plic: read pending: word=%d value=%d\n",
word, plic->pending[word]);

25
hw/riscv/sifive_u.c
View file

@ -85,7 +85,8 @@ static void create_fdt(SiFiveUState *s, const struct MemmapEntry *memmap,
int cpu;
uint32_t *cells;
char *nodename;
uint32_t plic_phandle;
char ethclk_names[] = "pclk\0hclk\0tx_clk";
uint32_t plic_phandle, ethclk_phandle;
fdt = s->fdt = create_device_tree(&s->fdt_size);
if (!fdt) {
@ -197,6 +198,17 @@ static void create_fdt(SiFiveUState *s, const struct MemmapEntry *memmap,
g_free(cells);
g_free(nodename);
nodename = g_strdup_printf("/soc/ethclk");
qemu_fdt_add_subnode(fdt, nodename);
qemu_fdt_setprop_string(fdt, nodename, "compatible", "fixed-clock");
qemu_fdt_setprop_cell(fdt, nodename, "#clock-cells", 0x0);
qemu_fdt_setprop_cell(fdt, nodename, "clock-frequency",
SIFIVE_U_GEM_CLOCK_FREQ);
qemu_fdt_setprop_cell(fdt, nodename, "phandle", 3);
qemu_fdt_setprop_cell(fdt, nodename, "linux,phandle", 3);
ethclk_phandle = qemu_fdt_get_phandle(fdt, nodename);
g_free(nodename);
nodename = g_strdup_printf("/soc/ethernet@%lx",
(long)memmap[SIFIVE_U_GEM].base);
qemu_fdt_add_subnode(fdt, nodename);
@ -208,6 +220,10 @@ static void create_fdt(SiFiveUState *s, const struct MemmapEntry *memmap,
qemu_fdt_setprop_string(fdt, nodename, "phy-mode", "gmii");
qemu_fdt_setprop_cells(fdt, nodename, "interrupt-parent", plic_phandle);
qemu_fdt_setprop_cells(fdt, nodename, "interrupts", SIFIVE_U_GEM_IRQ);
qemu_fdt_setprop_cells(fdt, nodename, "clocks",
ethclk_phandle, ethclk_phandle, ethclk_phandle);
qemu_fdt_setprop(fdt, nodename, "clocks-names", ethclk_names,
sizeof(ethclk_names));
qemu_fdt_setprop_cells(fdt, nodename, "#address-cells", 1);
qemu_fdt_setprop_cells(fdt, nodename, "#size-cells", 0);
g_free(nodename);
@ -225,6 +241,8 @@ static void create_fdt(SiFiveUState *s, const struct MemmapEntry *memmap,
qemu_fdt_setprop_cells(fdt, nodename, "reg",
0x0, memmap[SIFIVE_U_UART0].base,
0x0, memmap[SIFIVE_U_UART0].size);
qemu_fdt_setprop_cell(fdt, nodename, "clock-frequency",
SIFIVE_U_CLOCK_FREQ / 2);
qemu_fdt_setprop_cells(fdt, nodename, "interrupt-parent", plic_phandle);
qemu_fdt_setprop_cells(fdt, nodename, "interrupts", 1);
@ -350,9 +368,8 @@ static void riscv_sifive_u_soc_realize(DeviceState *dev, Error **errp)
memmap[SIFIVE_U_PLIC].size);
sifive_uart_create(system_memory, memmap[SIFIVE_U_UART0].base,
serial_hd(0), qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_U_UART0_IRQ));
/* sifive_uart_create(system_memory, memmap[SIFIVE_U_UART1].base,
serial_hd(1), qdev_get_gpio_in(DEVICE(s->plic),
SIFIVE_U_UART1_IRQ)); */
sifive_uart_create(system_memory, memmap[SIFIVE_U_UART1].base,
serial_hd(1), qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_U_UART1_IRQ));
sifive_clint_create(memmap[SIFIVE_U_CLINT].base,
memmap[SIFIVE_U_CLINT].size, smp_cpus,
SIFIVE_SIP_BASE, SIFIVE_TIMECMP_BASE, SIFIVE_TIME_BASE);

24
hw/riscv/sifive_uart.c
View file

@ -28,12 +28,26 @@
* Not yet implemented:
*
* Transmit FIFO using "qemu/fifo8.h"
* SIFIVE_UART_IE_TXWM interrupts
* SIFIVE_UART_IE_RXWM interrupts must honor fifo watermark
* Rx FIFO watermark interrupt trigger threshold
* Tx FIFO watermark interrupt trigger threshold.
*/
/* Returns the state of the IP (interrupt pending) register */
static uint64_t uart_ip(SiFiveUARTState *s)
{
uint64_t ret = 0;
uint64_t txcnt = SIFIVE_UART_GET_TXCNT(s->txctrl);
uint64_t rxcnt = SIFIVE_UART_GET_RXCNT(s->rxctrl);
if (txcnt != 0) {
ret |= SIFIVE_UART_IP_TXWM;
}
if (s->rx_fifo_len > rxcnt) {
ret |= SIFIVE_UART_IP_RXWM;
}
return ret;
}
static void update_irq(SiFiveUARTState *s)
{
int cond = 0;
@ -69,7 +83,7 @@ uart_read(void *opaque, hwaddr addr, unsigned int size)
case SIFIVE_UART_IE:
return s->ie;
case SIFIVE_UART_IP:
return s->rx_fifo_len ? SIFIVE_UART_IP_RXWM : 0;
return uart_ip(s);
case SIFIVE_UART_TXCTRL:
return s->txctrl;
case SIFIVE_UART_RXCTRL:

147
hw/riscv/virt.c
View file

@ -39,6 +39,8 @@
#include "sysemu/arch_init.h"
#include "sysemu/device_tree.h"
#include "exec/address-spaces.h"
#include "hw/pci/pci.h"
#include "hw/pci-host/gpex.h"
#include "elf.h"
#include <libfdt.h>
@ -47,14 +49,17 @@ static const struct MemmapEntry {
hwaddr base;
hwaddr size;
} virt_memmap[] = {
[VIRT_DEBUG] = { 0x0, 0x100 },
[VIRT_MROM] = { 0x1000, 0x11000 },
[VIRT_TEST] = { 0x100000, 0x1000 },
[VIRT_CLINT] = { 0x2000000, 0x10000 },
[VIRT_PLIC] = { 0xc000000, 0x4000000 },
[VIRT_UART0] = { 0x10000000, 0x100 },
[VIRT_VIRTIO] = { 0x10001000, 0x1000 },
[VIRT_DRAM] = { 0x80000000, 0x0 },
[VIRT_DEBUG] = { 0x0, 0x100 },
[VIRT_MROM] = { 0x1000, 0x11000 },
[VIRT_TEST] = { 0x100000, 0x1000 },
[VIRT_CLINT] = { 0x2000000, 0x10000 },
[VIRT_PLIC] = { 0xc000000, 0x4000000 },
[VIRT_UART0] = { 0x10000000, 0x100 },
[VIRT_VIRTIO] = { 0x10001000, 0x1000 },
[VIRT_DRAM] = { 0x80000000, 0x0 },
[VIRT_PCIE_MMIO] = { 0x40000000, 0x40000000 },
[VIRT_PCIE_PIO] = { 0x03000000, 0x00010000 },
[VIRT_PCIE_ECAM] = { 0x30000000, 0x10000000 },
};
static uint64_t load_kernel(const char *kernel_filename)
@ -98,6 +103,51 @@ static hwaddr load_initrd(const char *filename, uint64_t mem_size,
return *start + size;
}
static void create_pcie_irq_map(void *fdt, char *nodename,
uint32_t plic_phandle)
{
int pin, dev;
uint32_t
full_irq_map[GPEX_NUM_IRQS * GPEX_NUM_IRQS * FDT_INT_MAP_WIDTH] = {};
uint32_t *irq_map = full_irq_map;
/* This code creates a standard swizzle of interrupts such that
* each device's first interrupt is based on it's PCI_SLOT number.
* (See pci_swizzle_map_irq_fn())
*
* We only need one entry per interrupt in the table (not one per
* possible slot) seeing the interrupt-map-mask will allow the table
* to wrap to any number of devices.
*/
for (dev = 0; dev < GPEX_NUM_IRQS; dev++) {
int devfn = dev * 0x8;
for (pin = 0; pin < GPEX_NUM_IRQS; pin++) {
int irq_nr = PCIE_IRQ + ((pin + PCI_SLOT(devfn)) % GPEX_NUM_IRQS);
int i = 0;
irq_map[i] = cpu_to_be32(devfn << 8);
i += FDT_PCI_ADDR_CELLS;
irq_map[i] = cpu_to_be32(pin + 1);
i += FDT_PCI_INT_CELLS;
irq_map[i++] = cpu_to_be32(plic_phandle);
i += FDT_PLIC_ADDR_CELLS;
irq_map[i] = cpu_to_be32(irq_nr);
irq_map += FDT_INT_MAP_WIDTH;
}
}
qemu_fdt_setprop(fdt, nodename, "interrupt-map",
full_irq_map, sizeof(full_irq_map));
qemu_fdt_setprop_cells(fdt, nodename, "interrupt-map-mask",
0x1800, 0, 0, 0x7);
}
static void *create_fdt(RISCVVirtState *s, const struct MemmapEntry *memmap,
uint64_t mem_size, const char *cmdline)
{
@ -203,7 +253,10 @@ static void *create_fdt(RISCVVirtState *s, const struct MemmapEntry *memmap,
nodename = g_strdup_printf("/soc/interrupt-controller@%lx",
(long)memmap[VIRT_PLIC].base);
qemu_fdt_add_subnode(fdt, nodename);
qemu_fdt_setprop_cell(fdt, nodename, "#interrupt-cells", 1);
qemu_fdt_setprop_cells(fdt, nodename, "#address-cells",
FDT_PLIC_ADDR_CELLS);
qemu_fdt_setprop_cell(fdt, nodename, "#interrupt-cells",
FDT_PLIC_INT_CELLS);
qemu_fdt_setprop_string(fdt, nodename, "compatible", "riscv,plic0");
qemu_fdt_setprop(fdt, nodename, "interrupt-controller", NULL, 0);
qemu_fdt_setprop(fdt, nodename, "interrupts-extended",
@ -233,6 +286,33 @@ static void *create_fdt(RISCVVirtState *s, const struct MemmapEntry *memmap,
g_free(nodename);
}
nodename = g_strdup_printf("/soc/pci@%lx",
(long) memmap[VIRT_PCIE_ECAM].base);
qemu_fdt_add_subnode(fdt, nodename);
qemu_fdt_setprop_cells(fdt, nodename, "#address-cells",
FDT_PCI_ADDR_CELLS);
qemu_fdt_setprop_cells(fdt, nodename, "#interrupt-cells",
FDT_PCI_INT_CELLS);
qemu_fdt_setprop_cells(fdt, nodename, "#size-cells", 0x2);
qemu_fdt_setprop_string(fdt, nodename, "compatible",
"pci-host-ecam-generic");
qemu_fdt_setprop_string(fdt, nodename, "device_type", "pci");
qemu_fdt_setprop_cell(fdt, nodename, "linux,pci-domain", 0);
qemu_fdt_setprop_cells(fdt, nodename, "bus-range", 0,
memmap[VIRT_PCIE_ECAM].base /
PCIE_MMCFG_SIZE_MIN - 1);
qemu_fdt_setprop(fdt, nodename, "dma-coherent", NULL, 0);
qemu_fdt_setprop_cells(fdt, nodename, "reg", 0, memmap[VIRT_PCIE_ECAM].base,
0, memmap[VIRT_PCIE_ECAM].size);
qemu_fdt_setprop_sized_cells(fdt, nodename, "ranges",
1, FDT_PCI_RANGE_IOPORT, 2, 0,
2, memmap[VIRT_PCIE_PIO].base, 2, memmap[VIRT_PCIE_PIO].size,
1, FDT_PCI_RANGE_MMIO,
2, memmap[VIRT_PCIE_MMIO].base,
2, memmap[VIRT_PCIE_MMIO].base, 2, memmap[VIRT_PCIE_MMIO].size);
create_pcie_irq_map(fdt, nodename, plic_phandle);
g_free(nodename);
nodename = g_strdup_printf("/test@%lx",
(long)memmap[VIRT_TEST].base);
qemu_fdt_add_subnode(fdt, nodename);
@ -263,6 +343,47 @@ static void *create_fdt(RISCVVirtState *s, const struct MemmapEntry *memmap,
return fdt;
}
static inline DeviceState *gpex_pcie_init(MemoryRegion *sys_mem,
hwaddr ecam_base, hwaddr ecam_size,
hwaddr mmio_base, hwaddr mmio_size,
hwaddr pio_base,
DeviceState *plic, bool link_up)
{
DeviceState *dev;
MemoryRegion *ecam_alias, *ecam_reg;
MemoryRegion *mmio_alias, *mmio_reg;
qemu_irq irq;
int i;
dev = qdev_create(NULL, TYPE_GPEX_HOST);
qdev_init_nofail(dev);
ecam_alias = g_new0(MemoryRegion, 1);
ecam_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
memory_region_init_alias(ecam_alias, OBJECT(dev), "pcie-ecam",
ecam_reg, 0, ecam_size);
memory_region_add_subregion(get_system_memory(), ecam_base, ecam_alias);
mmio_alias = g_new0(MemoryRegion, 1);
mmio_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 1);
memory_region_init_alias(mmio_alias, OBJECT(dev), "pcie-mmio",
mmio_reg, mmio_base, mmio_size);
memory_region_add_subregion(get_system_memory(), mmio_base, mmio_alias);
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, pio_base);
for (i = 0; i < GPEX_NUM_IRQS; i++) {
irq = qdev_get_gpio_in(plic, PCIE_IRQ + i);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, irq);
gpex_set_irq_num(GPEX_HOST(dev), i, PCIE_IRQ + i);
}
return dev;
}
static void riscv_virt_board_init(MachineState *machine)
{
const struct MemmapEntry *memmap = virt_memmap;
@ -385,6 +506,14 @@ static void riscv_virt_board_init(MachineState *machine)
qdev_get_gpio_in(DEVICE(s->plic), VIRTIO_IRQ + i));
}
gpex_pcie_init(system_memory,
memmap[VIRT_PCIE_ECAM].base,
memmap[VIRT_PCIE_ECAM].size,
memmap[VIRT_PCIE_MMIO].base,
memmap[VIRT_PCIE_MMIO].size,
memmap[VIRT_PCIE_PIO].base,
DEVICE(s->plic), true);
serial_mm_init(system_memory, memmap[VIRT_UART0].base,
0, qdev_get_gpio_in(DEVICE(s->plic), UART0_IRQ), 399193,
serial_hd(0), DEVICE_LITTLE_ENDIAN);

3
include/hw/riscv/sifive_u.h
View file

@ -63,7 +63,8 @@ enum {
};
enum {
SIFIVE_U_CLOCK_FREQ = 1000000000
SIFIVE_U_CLOCK_FREQ = 1000000000,
SIFIVE_U_GEM_CLOCK_FREQ = 125000000
};
#define SIFIVE_U_PLIC_HART_CONFIG "MS"

3
include/hw/riscv/sifive_uart.h
View file

@ -43,6 +43,9 @@ enum {
SIFIVE_UART_IP_RXWM = 2 /* Receive watermark interrupt pending */
};
#define SIFIVE_UART_GET_TXCNT(txctrl) ((txctrl >> 16) & 0x7)
#define SIFIVE_UART_GET_RXCNT(rxctrl) ((rxctrl >> 16) & 0x7)
#define TYPE_SIFIVE_UART "riscv.sifive.uart"
#define SIFIVE_UART(obj) \

15
include/hw/riscv/virt.h
View file

@ -38,14 +38,18 @@ enum {
VIRT_PLIC,
VIRT_UART0,
VIRT_VIRTIO,
VIRT_DRAM
VIRT_DRAM,
VIRT_PCIE_MMIO,
VIRT_PCIE_PIO,
VIRT_PCIE_ECAM
};
enum {
UART0_IRQ = 10,
VIRTIO_IRQ = 1, /* 1 to 8 */
VIRTIO_COUNT = 8,
VIRTIO_NDEV = 10
PCIE_IRQ = 0x20, /* 32 to 35 */
VIRTIO_NDEV = 0x35 /* Arbitrary maximum number of interrupts */
};
enum {
@ -62,6 +66,13 @@ enum {
#define VIRT_PLIC_CONTEXT_BASE 0x200000
#define VIRT_PLIC_CONTEXT_STRIDE 0x1000
#define FDT_PCI_ADDR_CELLS 3
#define FDT_PCI_INT_CELLS 1
#define FDT_PLIC_ADDR_CELLS 0
#define FDT_PLIC_INT_CELLS 1
#define FDT_INT_MAP_WIDTH (FDT_PCI_ADDR_CELLS + FDT_PCI_INT_CELLS + 1 + \
FDT_PLIC_ADDR_CELLS + FDT_PLIC_INT_CELLS)
#if defined(TARGET_RISCV32)
#define VIRT_CPU TYPE_RISCV_CPU_RV32GCSU_V1_10_0
#elif defined(TARGET_RISCV64)

4
target/riscv/cpu.c
View file

@ -330,8 +330,8 @@ static void riscv_cpu_class_init(ObjectClass *c, void *data)
CPUClass *cc = CPU_CLASS(c);
DeviceClass *dc = DEVICE_CLASS(c);
mcc->parent_realize = dc->realize;
dc->realize = riscv_cpu_realize;
device_class_set_parent_realize(dc, riscv_cpu_realize,
&mcc->parent_realize);
mcc->parent_reset = cc->reset;
cc->reset = riscv_cpu_reset;

18
target/riscv/cpu_helper.c
View file

@ -445,11 +445,13 @@ void riscv_cpu_do_interrupt(CPUState *cs)
if (RISCV_DEBUG_INTERRUPT) {
int log_cause = cs->exception_index & RISCV_EXCP_INT_MASK;
if (cs->exception_index & RISCV_EXCP_INT_FLAG) {
qemu_log_mask(LOG_TRACE, "core 0: trap %s, epc 0x" TARGET_FMT_lx,
riscv_intr_names[log_cause], env->pc);
qemu_log_mask(LOG_TRACE, "core "
TARGET_FMT_ld ": trap %s, epc 0x" TARGET_FMT_lx "\n",
env->mhartid, riscv_intr_names[log_cause], env->pc);
} else {
qemu_log_mask(LOG_TRACE, "core 0: intr %s, epc 0x" TARGET_FMT_lx,
riscv_excp_names[log_cause], env->pc);
qemu_log_mask(LOG_TRACE, "core "
TARGET_FMT_ld ": intr %s, epc 0x" TARGET_FMT_lx "\n",
env->mhartid, riscv_excp_names[log_cause], env->pc);
}
}
@ -511,8 +513,8 @@ void riscv_cpu_do_interrupt(CPUState *cs)
if (hasbadaddr) {
if (RISCV_DEBUG_INTERRUPT) {
qemu_log_mask(LOG_TRACE, "core " TARGET_FMT_ld
": badaddr 0x" TARGET_FMT_lx, env->mhartid, env->badaddr);
qemu_log_mask(LOG_TRACE, "core " TARGET_FMT_ld ": badaddr 0x"
TARGET_FMT_lx "\n", env->mhartid, env->badaddr);
}
env->sbadaddr = env->badaddr;
} else {
@ -536,8 +538,8 @@ void riscv_cpu_do_interrupt(CPUState *cs)
if (hasbadaddr) {
if (RISCV_DEBUG_INTERRUPT) {
qemu_log_mask(LOG_TRACE, "core " TARGET_FMT_ld
": badaddr 0x" TARGET_FMT_lx, env->mhartid, env->badaddr);
qemu_log_mask(LOG_TRACE, "core " TARGET_FMT_ld ": badaddr 0x"
TARGET_FMT_lx "\n", env->mhartid, env->badaddr);
}
env->mbadaddr = env->badaddr;
} else {

2
target/riscv/pmp.c
View file

@ -138,7 +138,7 @@ static void pmp_decode_napot(target_ulong a, target_ulong *sa, target_ulong *ea)
return;
} else {
target_ulong t1 = ctz64(~a);
target_ulong base = (a & ~(((target_ulong)1 << t1) - 1)) << 3;
target_ulong base = (a & ~(((target_ulong)1 << t1) - 1)) << 2;
target_ulong range = ((target_ulong)1 << (t1 + 3)) - 1;
*sa = base;
*ea = base + range;