vmd(8) - virtual machine daemon.

There is still a lot to be done, and fixed, in these userland components
but I have received enough "it works, commit it" emails that it's time
to finish those things in tree.

discussed with many, tested by many.

1 files changed, 89 insertions, 0 deletions

diff --git a/usr.sbin/vmd/pci.h b/usr.sbin/vmd/pci.h
new file mode 100644
index 00000000000..a7cdd2901ef
--- /dev/null
+++ b/usr.sbin/vmd/pci.h
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2015 Mike Larkin <mlarkin@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define PCI_MODE1_ENABLE	0x80000000UL
+#define PCI_MODE1_ADDRESS_REG	0x0cf8
+#define PCI_MODE1_DATA_REG	0x0cfc
+#define PCI_CONFIG_MAX_DEV	32
+#define PCI_MAX_BARS		6
+
+#define PCI_BAR_TYPE_IO		0x0
+#define PCI_BAR_TYPE_MMIO	0x1
+
+#define PCI_MAX_PIC_IRQS	5
+
+typedef int (*pci_cs_fn_t)(int dir, uint8_t reg, uint32_t *data);
+typedef int (*pci_iobar_fn_t)(int dir, uint16_t reg, uint32_t *data, uint8_t *,
+    void *);
+typedef int (*pci_mmiobar_fn_t)(int dir, uint32_t ofs, uint32_t *data);
+
+union pci_dev {
+	uint32_t pd_cfg_space[PCI_CONFIG_SPACE_SIZE / 4];
+
+	struct {
+		uint16_t pd_vid;
+		uint16_t pd_did;
+		uint16_t pd_cmd;
+		uint16_t pd_status;
+		uint8_t pd_rev;
+		uint8_t pd_prog_if;
+		uint8_t pd_subclass;
+		uint8_t pd_class;
+		uint8_t pd_cache_size;
+		uint8_t pd_lat_timer;
+		uint8_t pd_header_type;
+		uint8_t pd_bist;
+		uint32_t pd_bar[PCI_MAX_BARS];
+		uint32_t pd_cardbus_cis;
+		uint16_t pd_subsys_vid;
+		uint16_t pd_subsys_id;
+		uint32_t pd_exp_rom_addr;
+		uint8_t pd_cap;
+		uint32_t pd_reserved0 : 24;
+		uint32_t pd_reserved1;
+		uint8_t pd_irq;
+		uint8_t pd_int;
+		uint8_t pd_min_grant;
+		uint8_t pd_max_grant;
+
+		uint8_t pd_bar_ct;
+		pci_cs_fn_t pd_csfunc;
+
+		uint8_t pd_bartype[PCI_MAX_BARS];
+		uint32_t pd_barsize[PCI_MAX_BARS];
+		void *pd_barfunc[PCI_MAX_BARS];
+		void *pd_bar_cookie[PCI_MAX_BARS];
+	} __packed;
+};
+
+struct pci {
+	uint8_t pci_dev_ct;
+	uint64_t pci_next_mmio_bar;
+	uint64_t pci_next_io_bar;
+	uint8_t pci_next_pic_irq;
+	uint32_t pci_addr_reg;
+	uint32_t pci_data_reg;
+
+	union pci_dev pci_devices[PCI_CONFIG_MAX_DEV];
+};
+
+void pci_handle_address_reg(struct vm_run_params *);
+void pci_handle_data_reg(struct vm_run_params *);
+uint8_t pci_handle_io(struct vm_run_params *);
+void pci_init(void);
+int pci_add_device(uint8_t *, uint16_t, uint16_t, uint8_t, uint8_t, uint16_t,
+    uint16_t, uint8_t, pci_cs_fn_t);
+int pci_add_bar(uint8_t, uint32_t, void *, void *);