Differential D29708 Diff 91213 usr.sbin/bhyve/pci_emul.c

Changeset View

Standalone View

usr.sbin/bhyve/pci_emul.c

Show First 20 Lines • Show All 721 Lines • ▼ Show 20 Lines	pci_emul_alloc_bar(struct pci_devinst *pdi, int idx, enum pcibar_type type,
if ((cmd & enbit) != enbit)		if ((cmd & enbit) != enbit)
pci_set_cfgdata16(pdi, PCIR_COMMAND, cmd \| enbit);		pci_set_cfgdata16(pdi, PCIR_COMMAND, cmd \| enbit);
register_bar(pdi, idx);		register_bar(pdi, idx);

return (0);		return (0);
}		}

#define CAP_START_OFFSET 0x40		#define CAP_START_OFFSET 0x40
static int		int
pci_emul_add_capability(struct pci_devinst pi, u_char capdata, int caplen)		pci_emul_add_capability(struct pci_devinst pi, u_char capdata, int caplen,
		int *capoffp)
{		{
int i, capoff, reallen;		int i, capoff, reallen;
uint16_t sts;		uint16_t sts;

assert(caplen > 0);		assert(caplen > 0);

reallen = roundup2(caplen, 4); /* dword aligned */		reallen = roundup2(caplen, 4); /* dword aligned */

Show All 18 Lines	pci_emul_add_capability(struct pci_devinst pi, u_char capdata, int caplen,
for (i = 0; i < caplen; i++)		for (i = 0; i < caplen; i++)
pci_set_cfgdata8(pi, capoff + i, capdata[i]);		pci_set_cfgdata8(pi, capoff + i, capdata[i]);

/* Set the next capability pointer */		/* Set the next capability pointer */
pci_set_cfgdata8(pi, capoff + 1, 0);		pci_set_cfgdata8(pi, capoff + 1, 0);

pi->pi_prevcap = capoff;		pi->pi_prevcap = capoff;
pi->pi_capend = capoff + reallen - 1;		pi->pi_capend = capoff + reallen - 1;

		if (capoffp != NULL)
		*capoffp = capoff;
return (0);		return (0);
}		}

static struct pci_devemu *		static struct pci_devemu *
pci_emul_finddev(const char *name)		pci_emul_finddev(const char *name)
{		{
struct pci_devemu *pdpp, pdp;		struct pci_devemu *pdpp, pdp;

▲ Show 20 Lines • Show All 60 Lines • ▼ Show 20 Lines

int		int
pci_emul_add_msicap(struct pci_devinst *pi, int msgnum)		pci_emul_add_msicap(struct pci_devinst *pi, int msgnum)
{		{
struct msicap msicap;		struct msicap msicap;

pci_populate_msicap(&msicap, msgnum, 0);		pci_populate_msicap(&msicap, msgnum, 0);

return (pci_emul_add_capability(pi, (u_char *)&msicap, sizeof(msicap)));		return (pci_emul_add_capability(pi, (u_char *)&msicap, sizeof(msicap),
		NULL));
}		}

static void		static void
pci_populate_msixcap(struct msixcap *msixcap, int msgnum, int barnum,		pci_populate_msixcap(struct msixcap *msixcap, int msgnum, int barnum,
uint32_t msix_tab_size)		uint32_t msix_tab_size)
{		{

assert(msix_tab_size % 4096 == 0);		assert(msix_tab_size % 4096 == 0);
▲ Show 20 Lines • Show All 58 Lines • ▼ Show 20 Lines	pci_emul_add_msixcap(struct pci_devinst *pi, int msgnum, int barnum)

pci_populate_msixcap(&msixcap, msgnum, barnum, tab_size);		pci_populate_msixcap(&msixcap, msgnum, barnum, tab_size);

/* allocate memory for MSI-X Table and PBA */		/* allocate memory for MSI-X Table and PBA */
pci_emul_alloc_bar(pi, barnum, PCIBAR_MEM32,		pci_emul_alloc_bar(pi, barnum, PCIBAR_MEM32,
tab_size + pi->pi_msix.pba_size);		tab_size + pi->pi_msix.pba_size);

return (pci_emul_add_capability(pi, (u_char *)&msixcap,		return (pci_emul_add_capability(pi, (u_char *)&msixcap,
sizeof(msixcap)));		sizeof(msixcap), NULL));
}		}

static void		static void
msixcap_cfgwrite(struct pci_devinst *pi, int capoff, int offset,		msixcap_cfgwrite(struct pci_devinst *pi, int capoff, int offset,
int bytes, uint32_t val)		int bytes, uint32_t val)
{		{
uint16_t msgctrl, rwmask;		uint16_t msgctrl, rwmask;
int off;		int off;
▲ Show 20 Lines • Show All 83 Lines • ▼ Show 20 Lines	pci_emul_add_pciecap(struct pci_devinst *pi, int type)

pciecap.capid = PCIY_EXPRESS;		pciecap.capid = PCIY_EXPRESS;
pciecap.pcie_capabilities = PCIECAP_VERSION \| type;		pciecap.pcie_capabilities = PCIECAP_VERSION \| type;
if (type != PCIEM_TYPE_ROOT_INT_EP) {		if (type != PCIEM_TYPE_ROOT_INT_EP) {
pciecap.link_capabilities = 0x411; /* gen1, x1 */		pciecap.link_capabilities = 0x411; /* gen1, x1 */
pciecap.link_status = 0x11; /* gen1, x1 */		pciecap.link_status = 0x11; /* gen1, x1 */
}		}

err = pci_emul_add_capability(pi, (u_char *)&pciecap, sizeof(pciecap));		err = pci_emul_add_capability(pi, (u_char *)&pciecap, sizeof(pciecap),
		NULL);
return (err);		return (err);
}		}

/*		/*
* This function assumes that 'coff' is in the capabilities region of the		* This function assumes that 'coff' is in the capabilities region of the
* config space. A capoff parameter of zero will force a search for the		* config space. A capoff parameter of zero will force a search for the
* offset and type.		* offset and type.
*/		*/
▲ Show 20 Lines • Show All 1,403 Lines • Show Last 20 Lines