Message ID | 1319032613-10560-3-git-send-email-anthony.perard@citrix.com |
---|---|
State | New |
Headers | show |
On Wed, 19 Oct 2011, Anthony PERARD wrote: > Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> > --- > Makefile.target | 1 + > hw/host-pci-device.c | 245 ++++++++++++++++++++++++++++++++++++++++++++++++++ > hw/host-pci-device.h | 75 +++++++++++++++ > 3 files changed, 321 insertions(+), 0 deletions(-) > create mode 100644 hw/host-pci-device.c > create mode 100644 hw/host-pci-device.h > > diff --git a/Makefile.target b/Makefile.target > index c518103..ca3420d 100644 > --- a/Makefile.target > +++ b/Makefile.target > @@ -209,6 +209,7 @@ obj-$(CONFIG_NO_XEN) += xen-stub.o > obj-i386-$(CONFIG_XEN) += xen_platform.o > > # Xen PCI Passthrough > +obj-i386-$(CONFIG_XEN_PCI_PASSTHROUGH) += host-pci-device.o > > # Inter-VM PCI shared memory > CONFIG_IVSHMEM = > diff --git a/hw/host-pci-device.c b/hw/host-pci-device.c > new file mode 100644 > index 0000000..0f25fcf > --- /dev/null > +++ b/hw/host-pci-device.c > @@ -0,0 +1,245 @@ > +/* > + * Copyright (C) 2011 Citrix Ltd. > + * > + * This work is licensed under the terms of the GNU GPL, version 2. See > + * the COPYING file in the top-level directory. > + * > + */ > + > +#include "qemu-common.h" > +#include "host-pci-device.h" > + > +static int path_to(const HostPCIDevice *d, > + const char *name, char *buf, ssize_t size) > +{ > + return snprintf(buf, size, "/sys/bus/pci/devices/%04x:%02x:%02x.%x/%s", > + d->domain, d->bus, d->dev, d->func, name); > +} > + > +static int get_resource(HostPCIDevice *d) > +{ > + int i, rc = 0; > + FILE *f; > + char path[PATH_MAX]; > + unsigned long long start, end, flags, size; > + > + path_to(d, "resource", path, sizeof (path)); > + f = fopen(path, "r"); > + if (!f) { > + fprintf(stderr, "Error: Can't open %s: %s\n", path, strerror(errno)); > + return -1; it would be better to return a proper error code, rather than just -1 > + } > + > + for (i = 0; i < PCI_NUM_REGIONS; i++) { > + if (fscanf(f, "%llx %llx %llx", &start, &end, &flags) != 3) { > + fprintf(stderr, "Error: Syntax error in %s\n", path); > + rc = -1; Ditto > + break; > + } > + if (start) { > + size = end - start + 1; > + } else { > + size = 0; > + } > + > + if (i < PCI_ROM_SLOT) { > + d->io_regions[i].base_addr = start; > + d->io_regions[i].size = size; > + d->io_regions[i].flags = flags; > + } else { > + d->rom.base_addr = start; > + d->rom.size = size; > + d->rom.flags = flags; > + } > + } > + > + fclose(f); > + return rc; > +} > + > +static unsigned long get_value(HostPCIDevice *d, const char *name) > +{ > + char path[PATH_MAX]; > + FILE *f; > + unsigned long value; > + > + path_to(d, name, path, sizeof (path)); > + f = fopen(path, "r"); > + if (!f) { > + fprintf(stderr, "Error: Can't open %s: %s\n", path, strerror(errno)); > + return -1; > + } > + if (fscanf(f, "%lx\n", &value) != 1) { > + fprintf(stderr, "Error: Syntax error in %s\n", path); > + value = -1; > + } > + fclose(f); > + return value; > +} > + > +static int pci_dev_is_virtfn(HostPCIDevice *d) > +{ > + int rc; > + char path[PATH_MAX]; > + struct stat buf; > + > + path_to(d, "physfn", path, sizeof (path)); > + rc = !stat(path, &buf); > + > + return rc; > +} > + > +static int host_pci_config_fd(HostPCIDevice *d) > +{ > + char path[PATH_MAX]; > + > + if (d->config_fd < 0) { > + path_to(d, "config", path, sizeof (path)); > + d->config_fd = open(path, O_RDWR); > + if (d->config_fd < 0) { > + fprintf(stderr, "HostPCIDevice: Can not open '%s': %s\n", > + path, strerror(errno)); > + } > + } > + return d->config_fd; > +} > +static int host_pci_config_read(HostPCIDevice *d, int pos, void *buf, int len) > +{ > + int fd = host_pci_config_fd(d); > + int res = 0; > + > + res = pread(fd, buf, len, pos); > + if (res < 0) { > + fprintf(stderr, "host_pci_config: read failed: %s (fd: %i)\n", > + strerror(errno), fd); > + return -1; > + } > + return res; > +} > +static int host_pci_config_write(HostPCIDevice *d, > + int pos, const void *buf, int len) > +{ > + int fd = host_pci_config_fd(d); > + int res = 0; > + > + res = pwrite(fd, buf, len, pos); > + if (res < 0) { > + fprintf(stderr, "host_pci_config: write failed: %s\n", > + strerror(errno)); > + return -1; > + } > + return res; > +} > + > +uint8_t host_pci_get_byte(HostPCIDevice *d, int pos) > +{ > + uint8_t buf; > + host_pci_config_read(d, pos, &buf, 1); > + return buf; > +} > +uint16_t host_pci_get_word(HostPCIDevice *d, int pos) > +{ > + uint16_t buf; > + host_pci_config_read(d, pos, &buf, 2); > + return le16_to_cpu(buf); > +} > +uint32_t host_pci_get_long(HostPCIDevice *d, int pos) > +{ > + uint32_t buf; > + host_pci_config_read(d, pos, &buf, 4); > + return le32_to_cpu(buf); > +} > +int host_pci_get_block(HostPCIDevice *d, int pos, uint8_t *buf, int len) > +{ > + return host_pci_config_read(d, pos, buf, len); > +} > + > +int host_pci_set_byte(HostPCIDevice *d, int pos, uint8_t data) > +{ > + return host_pci_config_write(d, pos, &data, 1); > +} > +int host_pci_set_word(HostPCIDevice *d, int pos, uint16_t data) > +{ > + data = cpu_to_le16(data); > + return host_pci_config_write(d, pos, &data, 2); > +} > +int host_pci_set_long(HostPCIDevice *d, int pos, uint32_t data) > +{ > + data = cpu_to_le32(data); > + return host_pci_config_write(d, pos, &data, 4); > +} > +int host_pci_set_block(HostPCIDevice *d, int pos, uint8_t *buf, int len) > +{ > + return host_pci_config_write(d, pos, buf, len); > +} > + > +uint32_t host_pci_find_ext_cap_offset(HostPCIDevice *d, uint32_t cap) > +{ > + uint32_t header = 0; > + int max_cap = 480; > + int pos = 0x100; could you used some defined constants here? > + do { > + header = host_pci_get_long(d, pos); > + /* > + * If we have no capabilities, this is indicated by cap ID, > + * cap version and next pointer all being 0. > + */ > + if (header == 0) { > + break; > + } > + > + if (PCI_EXT_CAP_ID(header) == cap) { > + return pos; > + } > + > + pos = PCI_EXT_CAP_NEXT(header); > + if (pos < 0x100) { > + break; > + } > + > + max_cap--; > + } while (max_cap > 0); > + > + return 0; > +} > + > +HostPCIDevice *host_pci_device_get(uint8_t bus, uint8_t dev, uint8_t func) > +{ > + HostPCIDevice *d = NULL; > + > + d = g_new0(HostPCIDevice, 1); > + > + d->config_fd = -1; > + d->domain = 0; > + d->bus = bus; > + d->dev = dev; > + d->func = func; > + > + if (host_pci_config_fd(d) == -1) { > + goto error; > + } > + if (get_resource(d) == -1) { > + goto error; > + } > + > + d->vendor_id = get_value(d, "vendor"); > + d->device_id = get_value(d, "device"); > + d->is_virtfn = pci_dev_is_virtfn(d); > + > + return d; > +error: > + if (d->config_fd >= 0) { > + close(d->config_fd); > + } > + g_free(d); > + return NULL; > +} > + > +void host_pci_device_put(HostPCIDevice *d) > +{ > + if (d->config_fd >= 0) { > + close(d->config_fd); > + } > + g_free(d); > +} > diff --git a/hw/host-pci-device.h b/hw/host-pci-device.h > new file mode 100644 > index 0000000..d79ba48 > --- /dev/null > +++ b/hw/host-pci-device.h > @@ -0,0 +1,75 @@ > +#ifndef HW_HOST_PCI_DEVICE > +# define HW_HOST_PCI_DEVICE > + > +#include "pci.h" > + > +/* > + * from linux/ioport.h > + * IO resources have these defined flags. > + */ > +#define IORESOURCE_BITS 0x000000ff /* Bus-specific bits */ > + > +#define IORESOURCE_TYPE_BITS 0x00000f00 /* Resource type */ > +#define IORESOURCE_IO 0x00000100 > +#define IORESOURCE_MEM 0x00000200 > +#define IORESOURCE_IRQ 0x00000400 > +#define IORESOURCE_DMA 0x00000800 > + > +#define IORESOURCE_PREFETCH 0x00001000 /* No side effects */ > +#define IORESOURCE_READONLY 0x00002000 > +#define IORESOURCE_CACHEABLE 0x00004000 > +#define IORESOURCE_RANGELENGTH 0x00008000 > +#define IORESOURCE_SHADOWABLE 0x00010000 > + > +#define IORESOURCE_SIZEALIGN 0x00020000 /* size indicates alignment */ > +#define IORESOURCE_STARTALIGN 0x00040000 /* start field is alignment */ > + > +#define IORESOURCE_MEM_64 0x00100000 > + > + /* Userland may not map this resource */ > +#define IORESOURCE_EXCLUSIVE 0x08000000 > +#define IORESOURCE_DISABLED 0x10000000 > +#define IORESOURCE_UNSET 0x20000000 > +#define IORESOURCE_AUTO 0x40000000 > + /* Driver has marked this resource busy */ > +#define IORESOURCE_BUSY 0x80000000 > + > + > +typedef struct HostPCIIORegion { > + unsigned long flags; > + pcibus_t base_addr; > + pcibus_t size; > +} HostPCIIORegion; > + > +typedef struct HostPCIDevice { > + uint16_t domain; > + uint8_t bus; > + uint8_t dev; > + uint8_t func; > + > + uint16_t vendor_id; > + uint16_t device_id; > + > + HostPCIIORegion io_regions[PCI_NUM_REGIONS - 1]; > + HostPCIIORegion rom; > + > + bool is_virtfn; > + > + int config_fd; > +} HostPCIDevice; > + > +HostPCIDevice *host_pci_device_get(uint8_t bus, uint8_t dev, uint8_t func); > +void host_pci_device_put(HostPCIDevice *pci_dev); > + > +uint8_t host_pci_get_byte(HostPCIDevice *d, int pos); > +uint16_t host_pci_get_word(HostPCIDevice *d, int pos); > +uint32_t host_pci_get_long(HostPCIDevice *d, int pos); > +int host_pci_get_block(HostPCIDevice *d, int pos, uint8_t *buf, int len); > +int host_pci_set_byte(HostPCIDevice *d, int pos, uint8_t data); > +int host_pci_set_word(HostPCIDevice *d, int pos, uint16_t data); > +int host_pci_set_long(HostPCIDevice *d, int pos, uint32_t data); > +int host_pci_set_block(HostPCIDevice *d, int pos, uint8_t *buf, int len); > + > +uint32_t host_pci_find_ext_cap_offset(HostPCIDevice *s, uint32_t cap); > + > +#endif /* !HW_HOST_PCI_DEVICE */ > -- > Anthony PERARD >
On Thu, Oct 20, 2011 at 11:57, Stefano Stabellini <stefano.stabellini@eu.citrix.com> wrote: > On Wed, 19 Oct 2011, Anthony PERARD wrote: >> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> >> --- >> Makefile.target | 1 + >> hw/host-pci-device.c | 245 ++++++++++++++++++++++++++++++++++++++++++++++++++ >> hw/host-pci-device.h | 75 +++++++++++++++ >> 3 files changed, 321 insertions(+), 0 deletions(-) >> create mode 100644 hw/host-pci-device.c >> create mode 100644 hw/host-pci-device.h >> >> diff --git a/Makefile.target b/Makefile.target >> index c518103..ca3420d 100644 >> --- a/Makefile.target >> +++ b/Makefile.target >> @@ -209,6 +209,7 @@ obj-$(CONFIG_NO_XEN) += xen-stub.o >> obj-i386-$(CONFIG_XEN) += xen_platform.o >> >> # Xen PCI Passthrough >> +obj-i386-$(CONFIG_XEN_PCI_PASSTHROUGH) += host-pci-device.o >> >> # Inter-VM PCI shared memory >> CONFIG_IVSHMEM = >> diff --git a/hw/host-pci-device.c b/hw/host-pci-device.c >> new file mode 100644 >> index 0000000..0f25fcf >> --- /dev/null >> +++ b/hw/host-pci-device.c >> @@ -0,0 +1,245 @@ >> +/* >> + * Copyright (C) 2011 Citrix Ltd. >> + * >> + * This work is licensed under the terms of the GNU GPL, version 2. See >> + * the COPYING file in the top-level directory. >> + * >> + */ >> + >> +#include "qemu-common.h" >> +#include "host-pci-device.h" >> + >> +static int path_to(const HostPCIDevice *d, >> + const char *name, char *buf, ssize_t size) >> +{ >> + return snprintf(buf, size, "/sys/bus/pci/devices/%04x:%02x:%02x.%x/%s", >> + d->domain, d->bus, d->dev, d->func, name); >> +} >> + >> +static int get_resource(HostPCIDevice *d) >> +{ >> + int i, rc = 0; >> + FILE *f; >> + char path[PATH_MAX]; >> + unsigned long long start, end, flags, size; >> + >> + path_to(d, "resource", path, sizeof (path)); >> + f = fopen(path, "r"); >> + if (!f) { >> + fprintf(stderr, "Error: Can't open %s: %s\n", path, strerror(errno)); >> + return -1; > > it would be better to return a proper error code, rather than just -1 probably -errno will do it. >> + } >> + >> + for (i = 0; i < PCI_NUM_REGIONS; i++) { >> + if (fscanf(f, "%llx %llx %llx", &start, &end, &flags) != 3) { >> + fprintf(stderr, "Error: Syntax error in %s\n", path); >> + rc = -1; > > Ditto probably 1 with a define on the top of the file. >> + break; >> + } >> + if (start) { >> + size = end - start + 1; >> + } else { >> + size = 0; >> + } >> + >> + if (i < PCI_ROM_SLOT) { >> + d->io_regions[i].base_addr = start; >> + d->io_regions[i].size = size; >> + d->io_regions[i].flags = flags; >> + } else { >> + d->rom.base_addr = start; >> + d->rom.size = size; >> + d->rom.flags = flags; >> + } >> + } >> + >> + fclose(f); >> + return rc; >> +} [...] >> + >> +uint32_t host_pci_find_ext_cap_offset(HostPCIDevice *d, uint32_t cap) >> +{ >> + uint32_t header = 0; >> + int max_cap = 480; >> + int pos = 0x100; > > could you used some defined constants here? Yes, I will. >> + do { >> + header = host_pci_get_long(d, pos); >> + /* >> + * If we have no capabilities, this is indicated by cap ID, >> + * cap version and next pointer all being 0. >> + */ >> + if (header == 0) { >> + break; >> + } >> + >> + if (PCI_EXT_CAP_ID(header) == cap) { >> + return pos; >> + } >> + >> + pos = PCI_EXT_CAP_NEXT(header); >> + if (pos < 0x100) { >> + break; >> + } >> + >> + max_cap--; >> + } while (max_cap > 0); >> + >> + return 0; >> +}
diff --git a/Makefile.target b/Makefile.target index c518103..ca3420d 100644 --- a/Makefile.target +++ b/Makefile.target @@ -209,6 +209,7 @@ obj-$(CONFIG_NO_XEN) += xen-stub.o obj-i386-$(CONFIG_XEN) += xen_platform.o # Xen PCI Passthrough +obj-i386-$(CONFIG_XEN_PCI_PASSTHROUGH) += host-pci-device.o # Inter-VM PCI shared memory CONFIG_IVSHMEM = diff --git a/hw/host-pci-device.c b/hw/host-pci-device.c new file mode 100644 index 0000000..0f25fcf --- /dev/null +++ b/hw/host-pci-device.c @@ -0,0 +1,245 @@ +/* + * Copyright (C) 2011 Citrix Ltd. + * + * This work is licensed under the terms of the GNU GPL, version 2. See + * the COPYING file in the top-level directory. + * + */ + +#include "qemu-common.h" +#include "host-pci-device.h" + +static int path_to(const HostPCIDevice *d, + const char *name, char *buf, ssize_t size) +{ + return snprintf(buf, size, "/sys/bus/pci/devices/%04x:%02x:%02x.%x/%s", + d->domain, d->bus, d->dev, d->func, name); +} + +static int get_resource(HostPCIDevice *d) +{ + int i, rc = 0; + FILE *f; + char path[PATH_MAX]; + unsigned long long start, end, flags, size; + + path_to(d, "resource", path, sizeof (path)); + f = fopen(path, "r"); + if (!f) { + fprintf(stderr, "Error: Can't open %s: %s\n", path, strerror(errno)); + return -1; + } + + for (i = 0; i < PCI_NUM_REGIONS; i++) { + if (fscanf(f, "%llx %llx %llx", &start, &end, &flags) != 3) { + fprintf(stderr, "Error: Syntax error in %s\n", path); + rc = -1; + break; + } + if (start) { + size = end - start + 1; + } else { + size = 0; + } + + if (i < PCI_ROM_SLOT) { + d->io_regions[i].base_addr = start; + d->io_regions[i].size = size; + d->io_regions[i].flags = flags; + } else { + d->rom.base_addr = start; + d->rom.size = size; + d->rom.flags = flags; + } + } + + fclose(f); + return rc; +} + +static unsigned long get_value(HostPCIDevice *d, const char *name) +{ + char path[PATH_MAX]; + FILE *f; + unsigned long value; + + path_to(d, name, path, sizeof (path)); + f = fopen(path, "r"); + if (!f) { + fprintf(stderr, "Error: Can't open %s: %s\n", path, strerror(errno)); + return -1; + } + if (fscanf(f, "%lx\n", &value) != 1) { + fprintf(stderr, "Error: Syntax error in %s\n", path); + value = -1; + } + fclose(f); + return value; +} + +static int pci_dev_is_virtfn(HostPCIDevice *d) +{ + int rc; + char path[PATH_MAX]; + struct stat buf; + + path_to(d, "physfn", path, sizeof (path)); + rc = !stat(path, &buf); + + return rc; +} + +static int host_pci_config_fd(HostPCIDevice *d) +{ + char path[PATH_MAX]; + + if (d->config_fd < 0) { + path_to(d, "config", path, sizeof (path)); + d->config_fd = open(path, O_RDWR); + if (d->config_fd < 0) { + fprintf(stderr, "HostPCIDevice: Can not open '%s': %s\n", + path, strerror(errno)); + } + } + return d->config_fd; +} +static int host_pci_config_read(HostPCIDevice *d, int pos, void *buf, int len) +{ + int fd = host_pci_config_fd(d); + int res = 0; + + res = pread(fd, buf, len, pos); + if (res < 0) { + fprintf(stderr, "host_pci_config: read failed: %s (fd: %i)\n", + strerror(errno), fd); + return -1; + } + return res; +} +static int host_pci_config_write(HostPCIDevice *d, + int pos, const void *buf, int len) +{ + int fd = host_pci_config_fd(d); + int res = 0; + + res = pwrite(fd, buf, len, pos); + if (res < 0) { + fprintf(stderr, "host_pci_config: write failed: %s\n", + strerror(errno)); + return -1; + } + return res; +} + +uint8_t host_pci_get_byte(HostPCIDevice *d, int pos) +{ + uint8_t buf; + host_pci_config_read(d, pos, &buf, 1); + return buf; +} +uint16_t host_pci_get_word(HostPCIDevice *d, int pos) +{ + uint16_t buf; + host_pci_config_read(d, pos, &buf, 2); + return le16_to_cpu(buf); +} +uint32_t host_pci_get_long(HostPCIDevice *d, int pos) +{ + uint32_t buf; + host_pci_config_read(d, pos, &buf, 4); + return le32_to_cpu(buf); +} +int host_pci_get_block(HostPCIDevice *d, int pos, uint8_t *buf, int len) +{ + return host_pci_config_read(d, pos, buf, len); +} + +int host_pci_set_byte(HostPCIDevice *d, int pos, uint8_t data) +{ + return host_pci_config_write(d, pos, &data, 1); +} +int host_pci_set_word(HostPCIDevice *d, int pos, uint16_t data) +{ + data = cpu_to_le16(data); + return host_pci_config_write(d, pos, &data, 2); +} +int host_pci_set_long(HostPCIDevice *d, int pos, uint32_t data) +{ + data = cpu_to_le32(data); + return host_pci_config_write(d, pos, &data, 4); +} +int host_pci_set_block(HostPCIDevice *d, int pos, uint8_t *buf, int len) +{ + return host_pci_config_write(d, pos, buf, len); +} + +uint32_t host_pci_find_ext_cap_offset(HostPCIDevice *d, uint32_t cap) +{ + uint32_t header = 0; + int max_cap = 480; + int pos = 0x100; + + do { + header = host_pci_get_long(d, pos); + /* + * If we have no capabilities, this is indicated by cap ID, + * cap version and next pointer all being 0. + */ + if (header == 0) { + break; + } + + if (PCI_EXT_CAP_ID(header) == cap) { + return pos; + } + + pos = PCI_EXT_CAP_NEXT(header); + if (pos < 0x100) { + break; + } + + max_cap--; + } while (max_cap > 0); + + return 0; +} + +HostPCIDevice *host_pci_device_get(uint8_t bus, uint8_t dev, uint8_t func) +{ + HostPCIDevice *d = NULL; + + d = g_new0(HostPCIDevice, 1); + + d->config_fd = -1; + d->domain = 0; + d->bus = bus; + d->dev = dev; + d->func = func; + + if (host_pci_config_fd(d) == -1) { + goto error; + } + if (get_resource(d) == -1) { + goto error; + } + + d->vendor_id = get_value(d, "vendor"); + d->device_id = get_value(d, "device"); + d->is_virtfn = pci_dev_is_virtfn(d); + + return d; +error: + if (d->config_fd >= 0) { + close(d->config_fd); + } + g_free(d); + return NULL; +} + +void host_pci_device_put(HostPCIDevice *d) +{ + if (d->config_fd >= 0) { + close(d->config_fd); + } + g_free(d); +} diff --git a/hw/host-pci-device.h b/hw/host-pci-device.h new file mode 100644 index 0000000..d79ba48 --- /dev/null +++ b/hw/host-pci-device.h @@ -0,0 +1,75 @@ +#ifndef HW_HOST_PCI_DEVICE +# define HW_HOST_PCI_DEVICE + +#include "pci.h" + +/* + * from linux/ioport.h + * IO resources have these defined flags. + */ +#define IORESOURCE_BITS 0x000000ff /* Bus-specific bits */ + +#define IORESOURCE_TYPE_BITS 0x00000f00 /* Resource type */ +#define IORESOURCE_IO 0x00000100 +#define IORESOURCE_MEM 0x00000200 +#define IORESOURCE_IRQ 0x00000400 +#define IORESOURCE_DMA 0x00000800 + +#define IORESOURCE_PREFETCH 0x00001000 /* No side effects */ +#define IORESOURCE_READONLY 0x00002000 +#define IORESOURCE_CACHEABLE 0x00004000 +#define IORESOURCE_RANGELENGTH 0x00008000 +#define IORESOURCE_SHADOWABLE 0x00010000 + +#define IORESOURCE_SIZEALIGN 0x00020000 /* size indicates alignment */ +#define IORESOURCE_STARTALIGN 0x00040000 /* start field is alignment */ + +#define IORESOURCE_MEM_64 0x00100000 + + /* Userland may not map this resource */ +#define IORESOURCE_EXCLUSIVE 0x08000000 +#define IORESOURCE_DISABLED 0x10000000 +#define IORESOURCE_UNSET 0x20000000 +#define IORESOURCE_AUTO 0x40000000 + /* Driver has marked this resource busy */ +#define IORESOURCE_BUSY 0x80000000 + + +typedef struct HostPCIIORegion { + unsigned long flags; + pcibus_t base_addr; + pcibus_t size; +} HostPCIIORegion; + +typedef struct HostPCIDevice { + uint16_t domain; + uint8_t bus; + uint8_t dev; + uint8_t func; + + uint16_t vendor_id; + uint16_t device_id; + + HostPCIIORegion io_regions[PCI_NUM_REGIONS - 1]; + HostPCIIORegion rom; + + bool is_virtfn; + + int config_fd; +} HostPCIDevice; + +HostPCIDevice *host_pci_device_get(uint8_t bus, uint8_t dev, uint8_t func); +void host_pci_device_put(HostPCIDevice *pci_dev); + +uint8_t host_pci_get_byte(HostPCIDevice *d, int pos); +uint16_t host_pci_get_word(HostPCIDevice *d, int pos); +uint32_t host_pci_get_long(HostPCIDevice *d, int pos); +int host_pci_get_block(HostPCIDevice *d, int pos, uint8_t *buf, int len); +int host_pci_set_byte(HostPCIDevice *d, int pos, uint8_t data); +int host_pci_set_word(HostPCIDevice *d, int pos, uint16_t data); +int host_pci_set_long(HostPCIDevice *d, int pos, uint32_t data); +int host_pci_set_block(HostPCIDevice *d, int pos, uint8_t *buf, int len); + +uint32_t host_pci_find_ext_cap_offset(HostPCIDevice *s, uint32_t cap); + +#endif /* !HW_HOST_PCI_DEVICE */
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> --- Makefile.target | 1 + hw/host-pci-device.c | 245 ++++++++++++++++++++++++++++++++++++++++++++++++++ hw/host-pci-device.h | 75 +++++++++++++++ 3 files changed, 321 insertions(+), 0 deletions(-) create mode 100644 hw/host-pci-device.c create mode 100644 hw/host-pci-device.h