diff options
| author | Cédric Le Goater <clg@kaod.org> | 2020-08-20 18:46:38 +0200 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2020-09-08 10:08:42 +1000 |
| commit | c02f9892af1f166634e1b4fd722044151acb5e88 (patch) | |
| tree | 616ccbfdea3565388de79fc079eaa24af89d98eb /hw/ppc/pnv_bmc.c | |
| parent | 4f311a70893800f33b57852ca4453823271c022b (diff) | |
ppc/pnv: Add a HIOMAP erase command
The OPAL test suite runs a read-erase-write test on the PNOR :
https://github.com/open-power/op-test/blob/master/testcases/OpTestPNOR.py
which revealed that the IPMI HIOMAP handlers didn't support
HIOMAP_C_ERASE. Implement the sector erase command by writing 0xFF in
the PNOR memory region.
Cc: Corey Minyard <cminyard@mvista.com>
Reported-by: Klaus Heinrich Kiwi <klaus@linux.vnet.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20200820164638.2515681-1-clg@kaod.org>
Acked-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw/ppc/pnv_bmc.c')
| -rw-r--r-- | hw/ppc/pnv_bmc.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/hw/ppc/pnv_bmc.c b/hw/ppc/pnv_bmc.c index 2e1a03daa4..67ebb16c4d 100644 --- a/hw/ppc/pnv_bmc.c +++ b/hw/ppc/pnv_bmc.c @@ -140,6 +140,27 @@ static uint16_t bytes_to_blocks(uint32_t bytes) return bytes >> BLOCK_SHIFT; } +static uint32_t blocks_to_bytes(uint16_t blocks) +{ + return blocks << BLOCK_SHIFT; +} + +static int hiomap_erase(PnvPnor *pnor, uint32_t offset, uint32_t size) +{ + MemTxResult result; + int i; + + for (i = 0; i < size / 4; i++) { + result = memory_region_dispatch_write(&pnor->mmio, offset + i * 4, + 0xFFFFFFFF, MO_32, + MEMTXATTRS_UNSPECIFIED); + if (result != MEMTX_OK) { + return -1; + } + } + return 0; +} + static void hiomap_cmd(IPMIBmcSim *ibs, uint8_t *cmd, unsigned int cmd_len, RspBuffer *rsp) { @@ -155,10 +176,16 @@ static void hiomap_cmd(IPMIBmcSim *ibs, uint8_t *cmd, unsigned int cmd_len, switch (cmd[2]) { case HIOMAP_C_MARK_DIRTY: case HIOMAP_C_FLUSH: - case HIOMAP_C_ERASE: case HIOMAP_C_ACK: break; + case HIOMAP_C_ERASE: + if (hiomap_erase(pnor, blocks_to_bytes(cmd[5] << 8 | cmd[4]), + blocks_to_bytes(cmd[7] << 8 | cmd[6]))) { + rsp_buffer_set_error(rsp, IPMI_CC_UNSPECIFIED); + } + break; + case HIOMAP_C_GET_INFO: rsp_buffer_push(rsp, 2); /* Version 2 */ rsp_buffer_push(rsp, BLOCK_SHIFT); /* block size */ |