diff options
Diffstat (limited to 'hw/misc/aspeed_hace.c')
| -rw-r--r-- | hw/misc/aspeed_hace.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/hw/misc/aspeed_hace.c b/hw/misc/aspeed_hace.c index 86422cb3be..32a5dbded3 100644 --- a/hw/misc/aspeed_hace.c +++ b/hw/misc/aspeed_hace.c @@ -59,6 +59,7 @@ /* Other cmd bits */ #define HASH_IRQ_EN BIT(9) #define HASH_SG_EN BIT(18) +#define CRYPT_IRQ_EN BIT(12) /* Scatter-gather data list */ #define SG_LIST_LEN_SIZE 4 #define SG_LIST_LEN_MASK 0x0FFFFFFF @@ -343,6 +344,15 @@ static void aspeed_hace_write(void *opaque, hwaddr addr, uint64_t data, qemu_irq_lower(s->irq); } } + if (ahc->raise_crypt_interrupt_workaround) { + if (data & CRYPT_IRQ) { + data &= ~CRYPT_IRQ; + + if (s->regs[addr] & CRYPT_IRQ) { + qemu_irq_lower(s->irq); + } + } + } break; case R_HASH_SRC: data &= ahc->src_mask; @@ -388,6 +398,12 @@ static void aspeed_hace_write(void *opaque, hwaddr addr, uint64_t data, case R_CRYPT_CMD: qemu_log_mask(LOG_UNIMP, "%s: Crypt commands not implemented\n", __func__); + if (ahc->raise_crypt_interrupt_workaround) { + s->regs[R_STATUS] |= CRYPT_IRQ; + if (data & CRYPT_IRQ_EN) { + qemu_irq_raise(s->irq); + } + } break; default: break; @@ -563,6 +579,13 @@ static void aspeed_ast2700_hace_class_init(ObjectClass *klass, void *data) ahc->dest_mask = 0x7FFFFFF8; ahc->key_mask = 0x7FFFFFF8; ahc->hash_mask = 0x00147FFF; + + /* + * Currently, it does not support the CRYPT command. Instead, it only + * sends an interrupt to notify the firmware that the crypt command + * has completed. It is a temporary workaround. + */ + ahc->raise_crypt_interrupt_workaround = true; } static const TypeInfo aspeed_ast2700_hace_info = { |