diff options
| author | Bernhard Beschow <shentey@gmail.com> | 2022-10-18 23:01:41 +0200 |
|---|---|---|
| committer | Daniel Henrique Barboza <danielhb413@gmail.com> | 2022-10-28 13:26:20 -0300 |
| commit | 334c388f25707a234c4a0dea05b9df08d7746638 (patch) | |
| tree | d2867aba34227a42bf102e5e52fc8d7662ed3154 /hw/block/pflash_cfi02.c | |
| parent | c593d1cc2555c5fe6a6a558f4d2bdc3bfd6713de (diff) | |
hw/block/pflash_cfi0{1, 2}: Error out if device length isn't a power of two
According to the JEDEC standard the device length is communicated to an
OS as an exponent (power of two).
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20221018210146.193159-3-shentey@gmail.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Diffstat (limited to 'hw/block/pflash_cfi02.c')
| -rw-r--r-- | hw/block/pflash_cfi02.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/block/pflash_cfi02.c b/hw/block/pflash_cfi02.c index 2a99b286b0..ff2fe154c1 100644 --- a/hw/block/pflash_cfi02.c +++ b/hw/block/pflash_cfi02.c @@ -880,6 +880,11 @@ static void pflash_cfi02_realize(DeviceState *dev, Error **errp) return; } + if (!is_power_of_2(pfl->chip_len)) { + error_setg(errp, "Device size must be a power of two."); + return; + } + memory_region_init_rom_device(&pfl->orig_mem, OBJECT(pfl), &pflash_cfi02_ops, pfl, pfl->name, pfl->chip_len, errp); |