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ahci: make port read traces more descriptive 

A trace is added to let us watch unimplemented registers specifically,
as these are more likely to cause us trouble. Otherwise, the port read
traces now tell us what register is getting hit, which is nicer.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180531222835.16558-4-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
This commit is contained in:
John Snow 2018-06-08 13:17:36 -04:00
parent 536551d758
commit e538916366
2 changed files with 5 additions and 3 deletions
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5
hw/ide/ahci.c
View File

@ -46,7 +46,6 @@ static bool ahci_map_fis_address(AHCIDevice *ad);
static void ahci_unmap_clb_address(AHCIDevice *ad);
static void ahci_unmap_fis_address(AHCIDevice *ad);
__attribute__((__unused__)) /* TODO */
static const char *AHCIPortReg_lookup[AHCI_PORT_REG__COUNT] = {
[AHCI_PORT_REG_LST_ADDR] = "PxCLB",
[AHCI_PORT_REG_LST_ADDR_HI] = "PxCLBU",
@ -149,10 +148,12 @@ static uint32_t ahci_port_read(AHCIState *s, int port, int offset)
val = pr->cmd_issue;
break;
default:
trace_ahci_port_read_default(s, port, AHCIPortReg_lookup[regnum],
offset);
val = 0;
}
trace_ahci_port_read(s, port, offset, val);
trace_ahci_port_read(s, port, AHCIPortReg_lookup[regnum], offset, val);
return val;
}

3
hw/ide/trace-events
View File

@ -63,7 +63,8 @@ ide_atapi_cmd_read_dma_cb_aio(void *s, int lba, int n) "IDEState: %p; aio read:
ide_atapi_cmd_packet(void *s, uint16_t limit, const char *packet) "IDEState: %p; limit=0x%x packet: %s"
# hw/ide/ahci.c
ahci_port_read(void *s, int port, int offset, uint32_t ret) "ahci(%p)[%d]: port read @ 0x%x: 0x%08x"
ahci_port_read(void *s, int port, const char *reg, int offset, uint32_t ret) "ahci(%p)[%d]: port read [reg:%s] @ 0x%x: 0x%08x"
ahci_port_read_default(void *s, int port, const char *reg, int offset) "ahci(%p)[%d]: unimplemented port read [reg:%s] @ 0x%x"
ahci_irq_raise(void *s) "ahci(%p): raise irq"
ahci_irq_lower(void *s) "ahci(%p): lower irq"
ahci_check_irq(void *s, uint32_t old, uint32_t new) "ahci(%p): check irq 0x%08x --> 0x%08x"