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Use the blockif CHS routine to create fake CHS values,

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and then populate them in the identity page.

This fixes a divide-by-zero error at probe time with NetBSD.

MFC after:	1 week.
This commit is contained in:
grehan 2014-07-15 00:27:08 +00:00
parent 4632b82c93
commit bffc595f8b
1 changed files with 6 additions and 0 deletions
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6
usr.sbin/bhyve/pci_ahci.c
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@ -598,10 +598,16 @@ handle_identify(struct ahci_port *p, int slot, uint8_t *cfis)
} else {
uint16_t buf[256];
uint64_t sectors;
uint16_t cyl;
uint8_t sech, heads;
sectors = blockif_size(p->bctx) / blockif_sectsz(p->bctx);
blockif_chs(p->bctx, &cyl, &heads, &sech);
memset(buf, 0, sizeof(buf));
buf[0] = 0x0040;
buf[1] = cyl;
buf[3] = heads;
buf[6] = sech;
/* TODO emulate different serial? */
ata_string((uint8_t *)(buf+10), "123456", 20);
ata_string((uint8_t *)(buf+23), "001", 8);