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aspeed/hace: Support AST2600 HACE

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The aspeed ast2600 accumulative mode is described in datasheet
ast2600v10.pdf section 25.6.4:
 1. Allocating and initiating accumulative hash digest write buffer
    with initial state.
    * Since QEMU crypto/hash api doesn't provide the API to set initial
      state of hash library, and the initial state is already set by
      crypto library (gcrypt/glib/...), so skip this step.
 2. Calculating accumulative hash digest.
    (a) When receiving the last accumulative data, software need to add
        padding message at the end of the accumulative data. Padding
        message described in specific of MD5, SHA-1, SHA224, SHA256,
        SHA512, SHA512/224, SHA512/256.
        * Since the crypto library (gcrypt/glib) already pad the
          padding message internally.
        * This patch is to remove the padding message which fed byguest
          machine driver.

Signed-off-by: Troy Lee <troy_lee@aspeedtech.com>
Signed-off-by: Steven Lee <steven_lee@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220426021120.28255-3-steven_lee@aspeedtech.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Steven Lee 2022-05-02 17:03:04 +02:00 • committed by Cédric Le Goater
parent 1877069c9d
commit 5cd7d8564a
2 changed files with 131 additions and 5 deletions
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4
include/hw/misc/aspeed_hace.h
View file

@ -18,6 +18,7 @@
OBJECT_DECLARE_TYPE(AspeedHACEState, AspeedHACEClass, ASPEED_HACE)
#define ASPEED_HACE_NR_REGS (0x64 >> 2)
#define ASPEED_HACE_MAX_SG 256 /* max number of entries */
struct AspeedHACEState {
SysBusDevice parent;
@ -25,7 +26,10 @@ struct AspeedHACEState {
MemoryRegion iomem;
qemu_irq irq;
struct iovec iov_cache[ASPEED_HACE_MAX_SG];
uint32_t regs[ASPEED_HACE_NR_REGS];
uint32_t total_req_len;
uint32_t iov_count;
MemoryRegion *dram_mr;
AddressSpace dram_as;