diff options
Diffstat (limited to 'usr.sbin/bhyve/mptbl.c')
-rw-r--r-- | usr.sbin/bhyve/mptbl.c | 64 |
1 files changed, 45 insertions, 19 deletions
diff --git a/usr.sbin/bhyve/mptbl.c b/usr.sbin/bhyve/mptbl.c index ea332d4..3608efa 100644 --- a/usr.sbin/bhyve/mptbl.c +++ b/usr.sbin/bhyve/mptbl.c @@ -39,6 +39,7 @@ __FBSDID("$FreeBSD$"); #include "acpi.h" #include "bhyverun.h" #include "mptbl.h" +#include "pci_emul.h" #define MPTABLE_BASE 0xF0000 @@ -75,9 +76,6 @@ __FBSDID("$FreeBSD$"); /* Number of local intr entries */ #define MPEII_NUM_LOCAL_IRQ 2 -/* Number of i/o intr entries */ -#define MPEII_MAX_IRQ 24 - /* Bus entry defines */ #define MPE_NUM_BUSES 2 #define MPE_BUSNAME_LEN 6 @@ -195,8 +193,42 @@ mpt_build_ioapic_entries(io_apic_entry_ptr mpei, int id) mpei->apic_address = IOAPIC_PADDR; } +static int +mpt_count_ioint_entries(void) +{ + + /* + * Always include entries for the first 16 pins along with a entry + * for each active PCI INTx pin. + */ + return (16 + pci_count_lintr()); +} + +static void +mpt_generate_pci_int(int slot, int pin, int ioapic_irq, void *arg) +{ + int_entry_ptr *mpiep, mpie; + + mpiep = arg; + mpie = *mpiep; + memset(mpie, 0, sizeof(*mpie)); + + /* + * This is always after another I/O interrupt entry, so cheat + * and fetch the I/O APIC ID from the prior entry. + */ + mpie->type = MPCT_ENTRY_INT; + mpie->int_type = INTENTRY_TYPE_INT; + mpie->src_bus_id = 0; + mpie->src_bus_irq = slot << 2 | (pin - 1); + mpie->dst_apic_id = mpie[-1].dst_apic_id; + mpie->dst_apic_int = ioapic_irq; + + *mpiep = mpie + 1; +} + static void -mpt_build_ioint_entries(int_entry_ptr mpie, int num_pins, int id) +mpt_build_ioint_entries(int_entry_ptr mpie, int id) { int pin; @@ -206,8 +238,8 @@ mpt_build_ioint_entries(int_entry_ptr mpie, int num_pins, int id) * just use the default config, tweek later if needed. */ - /* Run through all 16 pins. */ - for (pin = 0; pin < num_pins; pin++) { + /* First, generate the first 16 pins. */ + for (pin = 0; pin < 16; pin++) { memset(mpie, 0, sizeof(*mpie)); mpie->type = MPCT_ENTRY_INT; mpie->src_bus_id = 1; @@ -235,16 +267,6 @@ mpt_build_ioint_entries(int_entry_ptr mpie, int num_pins, int id) mpie->int_type = INTENTRY_TYPE_INT; mpie->src_bus_irq = SCI_INT; break; - case 5: - case 10: - case 11: - /* - * PCI Irqs set to level triggered and active-lo. - */ - mpie->int_flags = INTENTRY_FLAGS_POLARITY_ACTIVELO | - INTENTRY_FLAGS_TRIGGER_LEVEL; - mpie->src_bus_id = 0; - /* fall through.. */ default: /* All other pins are identity mapped. */ mpie->int_type = INTENTRY_TYPE_INT; @@ -254,6 +276,8 @@ mpt_build_ioint_entries(int_entry_ptr mpie, int num_pins, int id) mpie++; } + /* Next, generate entries for any PCI INTx interrupts. */ + pci_walk_lintr(mpt_generate_pci_int, &mpie); } void @@ -273,6 +297,7 @@ mptable_build(struct vmctx *ctx, int ncpu) proc_entry_ptr mpep; mpfps_t mpfp; int_entry_ptr mpie; + int ioints; char *curraddr; char *startaddr; @@ -307,9 +332,10 @@ mptable_build(struct vmctx *ctx, int ncpu) mpch->entry_count++; mpie = (int_entry_ptr) curraddr; - mpt_build_ioint_entries(mpie, MPEII_MAX_IRQ, 0); - curraddr += sizeof(*mpie) * MPEII_MAX_IRQ; - mpch->entry_count += MPEII_MAX_IRQ; + ioints = mpt_count_ioint_entries(); + mpt_build_ioint_entries(mpie, 0); + curraddr += sizeof(*mpie) * ioints; + mpch->entry_count += ioints; mpie = (int_entry_ptr)curraddr; mpt_build_localint_entries(mpie); |