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aspeed/smc: use a modulo to check segment limits 

The size of a segment is not necessarily a power of 2.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 1486648058-520-5-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Cédric Le Goater 2017-02-10 17:40:30 +00:00 committed by Peter Maydell
parent 1a6d4fc27d
commit b4cc583f02
1 changed files with 2 additions and 2 deletions
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4
hw/ssi/aspeed_smc.c
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@ -475,15 +475,15 @@ static uint32_t aspeed_smc_check_segment_addr(const AspeedSMCFlash *fl,
AspeedSegments seg;
aspeed_smc_reg_to_segment(s->regs[R_SEG_ADDR0 + fl->id], &seg);
if ((addr & (seg.size - 1)) != addr) {
if ((addr % seg.size) != addr) {
qemu_log_mask(LOG_GUEST_ERROR,
"%s: invalid address 0x%08x for CS%d segment : "
"[ 0x%"HWADDR_PRIx" - 0x%"HWADDR_PRIx" ]\n",
s->ctrl->name, addr, fl->id, seg.addr,
seg.addr + seg.size);
addr %= seg.size;
}
addr &= seg.size - 1;
return addr;
}