dm: remove cfc/cf8 pio handler
The acrn vhm driver will convert all PCI configure space access to
PCI_CFG type, so the pci_emul_cfgaddr and pci_emul_cfgdata will nerver
be invoked. Remove these useless functions.
Acked-by: Yu Wang
@@ -2253,64 +2253,6 @@ pci_cfgrw(struct vmctx *ctx, int vcpu, int in, int bus, int slot, int func,
}
}
-static int cfgenable, cfgbus, cfgslot, cfgfunc, cfgoff;
-
-static int
-pci_emul_cfgaddr(struct vmctx *ctx, int vcpu, int in, int port, int bytes,
- uint32_t *eax, void *arg)
-{
- uint32_t x;
-
- if (bytes != 4) {
- if (in)
- *eax = (bytes == 2) ? 0xffff : 0xff;
- return 0;
- }
-
- if (in) {
- x = (cfgbus << 16) | (cfgslot << 11) | (cfgfunc << 8) | cfgoff;
- if (cfgenable)
- x |= CONF1_ENABLE;
- *eax = x;
- } else {
- x = *eax;
- cfgenable = (x & CONF1_ENABLE) == CONF1_ENABLE;
- cfgoff = x & PCI_REGMAX;
- cfgfunc = (x >> 8) & PCI_FUNCMAX;
- cfgslot = (x >> 11) & PCI_SLOTMAX;
- cfgbus = (x >> 16) & PCI_BUSMAX;
- }
-
- return 0;
-}
-INOUT_PORT(pci_cfgaddr, CONF1_ADDR_PORT, IOPORT_F_INOUT, pci_emul_cfgaddr);
-
-static int
-pci_emul_cfgdata(struct vmctx *ctx, int vcpu, int in, int port, int bytes,
- uint32_t *eax, void *arg)
-{
- int coff;
-
- if ((bytes != 1) && (bytes != 2) && (bytes != 4))
- return -1;
-
- coff = cfgoff + (port - CONF1_DATA_PORT);
- if (cfgenable) {
- pci_cfgrw(ctx, vcpu, in, cfgbus, cfgslot, cfgfunc, coff, bytes,
- eax);
- } else {
- /* Ignore accesses to cfgdata if not enabled by cfgaddr */
- if (in)
- *eax = 0xffffffff;
- }
- return 0;
-}
-
-INOUT_PORT(pci_cfgdata, CONF1_DATA_PORT+0, IOPORT_F_INOUT, pci_emul_cfgdata);
-INOUT_PORT(pci_cfgdata, CONF1_DATA_PORT+1, IOPORT_F_INOUT, pci_emul_cfgdata);
-INOUT_PORT(pci_cfgdata, CONF1_DATA_PORT+2, IOPORT_F_INOUT, pci_emul_cfgdata);
-INOUT_PORT(pci_cfgdata, CONF1_DATA_PORT+3, IOPORT_F_INOUT, pci_emul_cfgdata);
-
int
emulate_pci_cfgrw(struct vmctx *ctx, int vcpu, int in, int bus, int slot,
int func, int reg, int bytes, int *value)
