diff options
| author | KONRAD Frederic <frederic.konrad@adacore.com> | 2018-05-03 17:17:14 +0200 |
|---|---|---|
| committer | Michael Clark <mjc@sifive.com> | 2018-05-09 07:57:32 +1200 |
| commit | 17b9751e85b9989cc841ed387794d7f1e8aa5e46 (patch) | |
| tree | ba35d51a3046feee602ab5bdf2936b6dfc6afcf5 /hw/riscv | |
| parent | c8b7e627b4269a3bc3ae41d9f420547a47e6d9b9 (diff) | |
riscv: spike: allow base == 0
The sanity check on base doesn't allow htif to be mapped @0. Check if the
symbol exists instead so we can map it where we want.
Reviewed-by: Michael Clark <mjc@sifive.com>
Signed-off-by: KONRAD Frederic <frederic.konrad@adacore.com>
Signed-off-by: Michael Clark <mjc@sifive.com>
Message-Id: <1525360636-18229-2-git-send-email-frederic.konrad@adacore.com>
Diffstat (limited to 'hw/riscv')
| -rw-r--r-- | hw/riscv/riscv_htif.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/hw/riscv/riscv_htif.c b/hw/riscv/riscv_htif.c index 3e17f30251..be252ec8cc 100644 --- a/hw/riscv/riscv_htif.c +++ b/hw/riscv/riscv_htif.c @@ -41,17 +41,20 @@ } while (0) static uint64_t fromhost_addr, tohost_addr; +static int address_symbol_set; void htif_symbol_callback(const char *st_name, int st_info, uint64_t st_value, - uint64_t st_size) + uint64_t st_size) { if (strcmp("fromhost", st_name) == 0) { + address_symbol_set |= 1; fromhost_addr = st_value; if (st_size != 8) { error_report("HTIF fromhost must be 8 bytes"); exit(1); } } else if (strcmp("tohost", st_name) == 0) { + address_symbol_set |= 2; tohost_addr = st_value; if (st_size != 8) { error_report("HTIF tohost must be 8 bytes"); @@ -248,7 +251,7 @@ HTIFState *htif_mm_init(MemoryRegion *address_space, MemoryRegion *main_mem, qemu_chr_fe_init(&s->chr, chr, &error_abort); qemu_chr_fe_set_handlers(&s->chr, htif_can_recv, htif_recv, htif_event, htif_be_change, s, NULL, true); - if (base) { + if (address_symbol_set == 3) { memory_region_init_io(&s->mmio, NULL, &htif_mm_ops, s, TYPE_HTIF_UART, size); memory_region_add_subregion(address_space, base, &s->mmio); |