File xen-ioemu-hvm-pv-support.diff of Package xen
Index: xen-3.3.1-testing/tools/ioemu-remote/hw/ide.c
===================================================================
--- xen-3.3.1-testing.orig/tools/ioemu-remote/hw/ide.c
+++ xen-3.3.1-testing/tools/ioemu-remote/hw/ide.c
@@ -485,6 +485,9 @@ typedef struct PCIIDEState {
} PCIIDEState;
+static PCIIDEState *principal_ide_controller;
+extern FILE *logfile;
+
#if defined(__ia64__)
#include <xen/hvm/ioreq.h>
@@ -2787,6 +2790,27 @@ static void ide_reset(IDEState *s)
s->media_changed = 0;
}
+void ide_unplug_harddisks(void)
+{
+ IDEState *s;
+ int i;
+
+ if (!principal_ide_controller) {
+ fprintf(logfile, "No principal controller?\n");
+ return;
+ }
+ for (i = 0; i < 4; i++) {
+ s = principal_ide_controller->ide_if + i;
+ if (!s->bs)
+ continue; /* drive not present */
+ if (s->is_cdrom)
+ continue; /* cdrom */
+ /* Is a hard disk, unplug it. */
+ s->bs = NULL;
+ ide_reset(s);
+ }
+}
+
struct partition {
uint8_t boot_ind; /* 0x80 - active */
uint8_t head; /* starting head */
@@ -3299,6 +3323,10 @@ void pci_cmd646_ide_init(PCIBus *bus, Bl
sizeof(PCIIDEState),
-1,
NULL, NULL);
+ if (principal_ide_controller)
+ abort();
+ principal_ide_controller = d;
+
d->type = IDE_TYPE_CMD646;
pci_conf = d->dev.config;
pci_conf[0x00] = 0x95; // CMD646
@@ -3430,6 +3458,10 @@ void pci_piix3_ide_init(PCIBus *bus, Blo
NULL, NULL);
d->type = IDE_TYPE_PIIX3;
+ if (principal_ide_controller)
+ abort();
+ principal_ide_controller = d;
+
pci_conf = d->dev.config;
pci_conf[0x00] = 0x86; // Intel
pci_conf[0x01] = 0x80;
Index: xen-3.3.1-testing/tools/ioemu-remote/hw/pci.c
===================================================================
--- xen-3.3.1-testing.orig/tools/ioemu-remote/hw/pci.c
+++ xen-3.3.1-testing/tools/ioemu-remote/hw/pci.c
@@ -648,6 +648,28 @@ void pci_nic_init(PCIBus *bus, NICInfo *
}
}
+void pci_unplug_netifs(void)
+{
+ PCIBus *bus;
+ int x;
+
+ /* We only support one PCI bus */
+ for (bus = first_bus; bus; bus = NULL) {
+ for (x = 0; x < 256; x++) {
+ if (bus->devices[x] &&
+ bus->devices[x]->config[0xa] == 0 &&
+ bus->devices[x]->config[0xb] == 2) {
+ /* Found a netif. Remove it from the bus. Note that
+ we don't free it here, since there could still be
+ references to it floating around. There are only
+ ever one or two structures leaked, and it's not
+ worth finding them all. */
+ bus->devices[x] = NULL;
+ }
+ }
+ }
+}
+
typedef struct {
PCIDevice dev;
PCIBus *bus;
Index: xen-3.3.1-testing/tools/ioemu-remote/hw/xen_platform.c
===================================================================
--- xen-3.3.1-testing.orig/tools/ioemu-remote/hw/xen_platform.c
+++ xen-3.3.1-testing/tools/ioemu-remote/hw/xen_platform.c
@@ -26,6 +26,8 @@
#include "hw.h"
#include "pci.h"
#include "irq.h"
+#include "sysemu.h"
+#include <xc_private.h>
#include <xenguest.h>
@@ -71,12 +73,53 @@ static void xen_platform_ioport_writeb(v
}
}
+static uint32_t ioport_base;
+
+static void platform_ioport_write(void *opaque, uint32_t addr, uint32_t val)
+{
+ DECLARE_DOMCTL;
+ int rc;
+
+ if (val == 0)
+ qemu_invalidate_map_cache();
+
+ switch (addr - ioport_base) {
+ case 0:
+ fprintf(logfile, "Init hypercall page %x, addr %x.\n", val, addr);
+ domctl.domain = (domid_t)domid;
+ domctl.u.hypercall_init.gmfn = val;
+ domctl.cmd = XEN_DOMCTL_hypercall_init;
+ rc = xc_domctl(xc_handle, &domctl);
+ fprintf(logfile, "result -> %d.\n", rc);
+ break;
+ case 4:
+ fprintf(logfile, "Disconnect IDE hard disk...\n");
+ ide_unplug_harddisks();
+ fprintf(logfile, "Disconnect netifs...\n");
+ pci_unplug_netifs();
+ fprintf(logfile, "Shutdown taps...\n");
+ net_tap_shutdown_all();
+ fprintf(logfile, "Done.\n");
+ break;
+ default:
+ fprintf(logfile, "Write to bad port %x (base %x) on evtchn device.\n",
+ addr, ioport_base);
+ break;
+ }
+}
+
static void platform_ioport_map(PCIDevice *pci_dev, int region_num, uint32_t addr, uint32_t size, int type)
{
+ ioport_base = addr;
+
+ register_ioport_write(addr, 16, 4, platform_ioport_write, NULL);
+/*
PCIXenPlatformState *d = (PCIXenPlatformState *)pci_dev;
+
register_ioport_write(addr, size, 1, xen_platform_ioport_writeb, d);
register_ioport_read(addr, size, 1, xen_platform_ioport_readb, d);
+*/
}
static uint32_t platform_mmio_read(void *opaque, target_phys_addr_t addr)
Index: xen-3.3.1-testing/tools/ioemu-remote/vl.c
===================================================================
--- xen-3.3.1-testing.orig/tools/ioemu-remote/vl.c
+++ xen-3.3.1-testing/tools/ioemu-remote/vl.c
@@ -259,6 +259,20 @@ static int event_pending = 1;
#include "xen-vl-extra.c"
+typedef struct IOHandlerRecord {
+ int fd;
+ IOCanRWHandler *fd_read_poll;
+ IOHandler *fd_read;
+ IOHandler *fd_write;
+ int deleted;
+ void *opaque;
+ /* temporary data */
+ struct pollfd *ufd;
+ struct IOHandlerRecord *next;
+} IOHandlerRecord;
+
+static IOHandlerRecord *first_io_handler;
+
/***********************************************************/
/* x86 ISA bus support */
@@ -4054,6 +4068,7 @@ typedef struct TAPState {
int fd;
char down_script[1024];
char script_arg[1024];
+ struct TAPState *next;
} TAPState;
static void tap_receive(void *opaque, const uint8_t *buf, int size)
@@ -4089,6 +4104,36 @@ static void tap_send(void *opaque)
}
}
+static TAPState *head_net_tap;
+
+void net_tap_shutdown_all(void)
+{
+ struct IOHandlerRecord **pioh, *ioh;
+
+ while (head_net_tap) {
+ pioh = &first_io_handler;
+ for (;;) {
+ ioh = *pioh;
+ if (ioh == NULL)
+ break;
+ if (ioh->fd == head_net_tap->fd) {
+ *pioh = ioh->next;
+ qemu_free(ioh);
+ break;
+ }
+ pioh = &ioh->next;
+ }
+ if (!ioh)
+ fprintf(stderr,
+ "warning: can't find iohandler for %d to close it properly.\n",
+ head_net_tap->fd);
+ close(head_net_tap->fd);
+ head_net_tap = head_net_tap->next;
+ }
+}
+
+
+
/* fd support */
static TAPState *net_tap_fd_init(VLANState *vlan, int fd)
@@ -4100,6 +4145,8 @@ static TAPState *net_tap_fd_init(VLANSta
return NULL;
s->fd = fd;
s->vc = qemu_new_vlan_client(vlan, tap_receive, NULL, s);
+ s->next = head_net_tap;
+ head_net_tap = s;
qemu_set_fd_handler(s->fd, tap_send, NULL, s);
snprintf(s->vc->info_str, sizeof(s->vc->info_str), "tap: fd=%d", fd);
return s;
@@ -5680,20 +5727,6 @@ static void dumb_display_init(DisplaySta
#define MAX_IO_HANDLERS 64
-typedef struct IOHandlerRecord {
- int fd;
- IOCanRWHandler *fd_read_poll;
- IOHandler *fd_read;
- IOHandler *fd_write;
- int deleted;
- void *opaque;
- /* temporary data */
- struct pollfd *ufd;
- struct IOHandlerRecord *next;
-} IOHandlerRecord;
-
-static IOHandlerRecord *first_io_handler;
-
/* XXX: fd_read_poll should be suppressed, but an API change is
necessary in the character devices to suppress fd_can_read(). */
int qemu_set_fd_handler2(int fd,
Index: xen-3.3.1-testing/tools/ioemu-remote/sysemu.h
===================================================================
--- xen-3.3.1-testing.orig/tools/ioemu-remote/sysemu.h
+++ xen-3.3.1-testing/tools/ioemu-remote/sysemu.h
@@ -49,6 +49,9 @@ void do_loadvm(const char *name);
void do_delvm(const char *name);
void do_info_snapshots(void);
+void net_tap_shutdown_all(void);
+void pci_unplug_netifs(void);
+
void main_loop_wait(int timeout);
/* Polling handling */
