qemu/hw/riscv
Nathan Chancellor ab3d207fe8 riscv: sifive_test: Allow 16-bit writes to memory region
When shutting down the machine running a mainline Linux kernel, the
following error happens:

$ build/riscv64-softmmu/qemu-system-riscv64 -bios default -M virt \
    -display none -initrd rootfs.cpio -kernel Image -m 512m \
    -nodefaults -serial mon:stdio
...
Requesting system poweroff
[    4.999630] reboot: Power down
sbi_trap_error: hart0: trap handler failed (error -2)
sbi_trap_error: hart0: mcause=0x0000000000000007 mtval=0x0000000000100000
sbi_trap_error: hart0: mepc=0x000000008000d4cc mstatus=0x0000000000001822
sbi_trap_error: hart0: ra=0x000000008000999e sp=0x0000000080015c78
sbi_trap_error: hart0: gp=0xffffffe000e76610 tp=0xffffffe0081b89c0
sbi_trap_error: hart0: s0=0x0000000080015c88 s1=0x0000000000000040
sbi_trap_error: hart0: a0=0x0000000000000000 a1=0x0000000080004024
sbi_trap_error: hart0: a2=0x0000000080004024 a3=0x0000000080004024
sbi_trap_error: hart0: a4=0x0000000000100000 a5=0x0000000000005555
sbi_trap_error: hart0: a6=0x0000000000004024 a7=0x0000000080011158
sbi_trap_error: hart0: s2=0x0000000000000000 s3=0x0000000080016000
sbi_trap_error: hart0: s4=0x0000000000000000 s5=0x0000000000000000
sbi_trap_error: hart0: s6=0x0000000000000001 s7=0x0000000000000000
sbi_trap_error: hart0: s8=0x0000000000000000 s9=0x0000000000000000
sbi_trap_error: hart0: s10=0x0000000000000000 s11=0x0000000000000008
sbi_trap_error: hart0: t0=0x0000000000000000 t1=0x0000000000000000
sbi_trap_error: hart0: t2=0x0000000000000000 t3=0x0000000000000000
sbi_trap_error: hart0: t4=0x0000000000000000 t5=0x0000000000000000
sbi_trap_error: hart0: t6=0x0000000000000000

The kernel does a 16-bit write when powering off the machine, which
was allowed before commit 5d971f9e67 ("memory: Revert "memory: accept
mismatching sizes in memory_region_access_valid""). Make min_access_size
match reality so that the machine can shut down properly now.

Cc: qemu-stable@nongnu.org
Fixes: 88a07990fa ("SiFive RISC-V Test Finisher")
Fixes: 5d971f9e67 ("memory: Revert "memory: accept mismatching sizes in memory_region_access_valid"")
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200901055822.2721209-1-natechancellor@gmail.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-09-09 15:54:18 -07:00
..
boot.c RISC-V: Support 64 bit start address 2020-07-13 17:25:37 -07:00
Kconfig hw/char: Initial commit of Ibex UART 2020-06-19 08:24:07 -07:00
meson.build configure: do not include dependency flags in QEMU_CFLAGS and LIBS 2020-09-08 11:43:16 +02:00
numa.c hw/riscv: Add helpers for RISC-V multi-socket NUMA machines 2020-08-25 09:11:35 -07:00
opentitan.c opentitan: Rename memmap enum constants 2020-08-27 14:04:54 -04:00
riscv_hart.c riscv_hart: Fix riscv_harts_realize() error API violations 2020-07-02 06:25:29 +02:00
riscv_htif.c chardev: Use QEMUChrEvent enum in IOEventHandler typedef 2020-01-08 11:15:35 +01:00
sifive_clint.c hw/riscv: Allow creating multiple instances of CLINT 2020-08-25 09:11:35 -07:00
sifive_e_prci.c sysbus: Convert to sysbus_realize() etc. with Coccinelle 2020-06-15 22:05:28 +02:00
sifive_e.c hw/riscv: Allow creating multiple instances of PLIC 2020-08-25 09:11:35 -07:00
sifive_gpio.c hw/riscv: sifive_gpio: Do not blindly trigger output IRQs 2020-06-19 08:25:27 -07:00
sifive_plic.c hw/riscv: Allow creating multiple instances of PLIC 2020-08-25 09:11:35 -07:00
sifive_test.c riscv: sifive_test: Allow 16-bit writes to memory region 2020-09-09 15:54:18 -07:00
sifive_u_otp.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
sifive_u_prci.c riscv: sifive: Implement PRCI model for FU540 2019-09-17 08:42:47 -07:00
sifive_u.c hw/riscv: Allow creating multiple instances of PLIC 2020-08-25 09:11:35 -07:00
sifive_uart.c chardev: Use QEMUChrEvent enum in IOEventHandler typedef 2020-01-08 11:15:35 +01:00
spike.c hw/riscv: spike: Allow creating multiple NUMA sockets 2020-08-25 09:11:35 -07:00
trace-events SiFive RISC-V GPIO Device 2019-05-24 11:58:30 -07:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
virt.c hw/riscv: virt: Allow creating multiple NUMA sockets 2020-08-25 09:11:35 -07:00