mirror of https://github.com/xemu-project/xemu.git
VFIO updates:
- Conversion to tracepoints (Eric Auger) - Fix memory listener address space (Frank Blaschka) - Move to hw/vfio/ and split common vs pci (Eric Auger & Kim Phillips) - Trivial error_report() fixes (Alex Williamson) In addition to enabling S390 with the address space fix and updating to use tracepoints rather than compile time debug, this set of patches moves hw/misc/vfio.c to hw/vfio/ and paves the way for vfio-platform support by splitting common functionality from PCI specific code. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJUmHzfAAoJECObm247sIsiZwwP/1vaePjmppn2iQkaS/eKssYc aHNlQ+zteML0/MMGUsp2d76HinZTStGRAm0yHGQ46Z2XQ+4DT9iARzkferhJKfb9 jPblAg/ek08WqPvv3epXU81qj/sp0n9MjCz7PJPzSXpKngOaBS5vZp4HJt37+2Kk 4I3TzKGEaEoAk84Ba8AKp3xG3TcOdnIsg5Ht2cT20QmrGh0R8tXreGavC+ERpJ5/ 59yIewpxxVNDYttD4bqRwyVPup1rpw/qK824cYFz3PWeFzix4rYg8aujr5BxqC5S BL6WxHbNC75e8vNZ/toEZX41Dj3jRtXVP3ARCbU0h/5oboUZ+j94eVmRejeCkIor G0uJjOT0NTILeq5ZrhGVl7/4reSFyO4EvhF6RDm/913iYJ9xwR1usHyTT3VbUwMh 3xnCHbGskxVrtdOLHd80o6uEycr4goQip8HP6Xg5YLWauoXHi5oAaOSIeyoHR7JH CjnkdmgpSbqBijL+sgAHoRh4hh7hS1sXR4kqeXEdwqZj8be/5v3gb7R/yLlQZYvs zAcE16a7CkTvki0f9uKsU2ZGhDE4AQaofB3EnKGSHvmMtGw6PoEDlZFcxtEjbfkl RUW6FLxXDVp16wTQCckyT9XPAjsqSFXdiqOf25StR9iwiHDB29hK5JNzM9vTUv06 AiNWMlxwEYuHu09FKSYi =CRNj -----END PGP SIGNATURE----- Merge remote-tracking branch 'remotes/awilliam/tags/vfio-update-20141222.0' into staging VFIO updates: - Conversion to tracepoints (Eric Auger) - Fix memory listener address space (Frank Blaschka) - Move to hw/vfio/ and split common vs pci (Eric Auger & Kim Phillips) - Trivial error_report() fixes (Alex Williamson) In addition to enabling S390 with the address space fix and updating to use tracepoints rather than compile time debug, this set of patches moves hw/misc/vfio.c to hw/vfio/ and paves the way for vfio-platform support by splitting common functionality from PCI specific code. # gpg: Signature made Mon 22 Dec 2014 20:19:43 GMT using RSA key ID 3BB08B22 # gpg: Good signature from "Alex Williamson <alex.williamson@redhat.com>" # gpg: aka "Alex Williamson <alex@shazbot.org>" # gpg: aka "Alex Williamson <alwillia@redhat.com>" # gpg: aka "Alex Williamson <alex.l.williamson@gmail.com>" * remotes/awilliam/tags/vfio-update-20141222.0: vfio: Cleanup error_report()s hw/vfio: create common module hw/vfio/pci: use name field in format strings hw/vfio/pci: rename group_list into vfio_group_list hw/vfio/pci: split vfio_get_device hw/vfio/pci: Introduce VFIORegion hw/vfio/pci: handle reset at VFIODevice hw/vfio/pci: add type, name and group fields in VFIODevice hw/vfio/pci: introduce minimalist VFIODevice with fd hw/vfio/pci: generalize mask/unmask to any IRQ index hw/vfio/pci: Rename VFIODevice into VFIOPCIDevice vfio: move hw/misc/vfio.c to hw/vfio/pci.c Move vfio.h into include/hw/vfio vfio: fix adding memory listener to the right address space vfio: migration to trace points Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell
commit
03de06dde5
2
LICENSE
2
LICENSE
|
|
@ -11,7 +11,7 @@ option) any later version.
|
||||||
|
|
||||||
As of July 2013, contributions under version 2 of the GNU General Public
|
As of July 2013, contributions under version 2 of the GNU General Public
|
||||||
License (and no later version) are only accepted for the following files
|
License (and no later version) are only accepted for the following files
|
||||||
or directories: bsd-user/, linux-user/, hw/misc/vfio.c, hw/xen/xen_pt*.
|
or directories: bsd-user/, linux-user/, hw/vfio/, hw/xen/xen_pt*.
|
||||||
|
|
||||||
3) The Tiny Code Generator (TCG) is released under the BSD license
|
3) The Tiny Code Generator (TCG) is released under the BSD license
|
||||||
(see license headers in files).
|
(see license headers in files).
|
||||||
|
|
|
||||||
|
|
@ -657,7 +657,7 @@ F: hw/usb/dev-serial.c
|
||||||
VFIO
|
VFIO
|
||||||
M: Alex Williamson <alex.williamson@redhat.com>
|
M: Alex Williamson <alex.williamson@redhat.com>
|
||||||
S: Supported
|
S: Supported
|
||||||
F: hw/misc/vfio.c
|
F: hw/vfio/*
|
||||||
|
|
||||||
vhost
|
vhost
|
||||||
M: Michael S. Tsirkin <mst@redhat.com>
|
M: Michael S. Tsirkin <mst@redhat.com>
|
||||||
|
|
|
||||||
|
|
@ -26,6 +26,7 @@ devices-dirs-$(CONFIG_SOFTMMU) += ssi/
|
||||||
devices-dirs-$(CONFIG_SOFTMMU) += timer/
|
devices-dirs-$(CONFIG_SOFTMMU) += timer/
|
||||||
devices-dirs-$(CONFIG_TPM) += tpm/
|
devices-dirs-$(CONFIG_TPM) += tpm/
|
||||||
devices-dirs-$(CONFIG_SOFTMMU) += usb/
|
devices-dirs-$(CONFIG_SOFTMMU) += usb/
|
||||||
|
devices-dirs-$(CONFIG_SOFTMMU) += vfio/
|
||||||
devices-dirs-$(CONFIG_VIRTIO) += virtio/
|
devices-dirs-$(CONFIG_VIRTIO) += virtio/
|
||||||
devices-dirs-$(CONFIG_SOFTMMU) += watchdog/
|
devices-dirs-$(CONFIG_SOFTMMU) += watchdog/
|
||||||
devices-dirs-$(CONFIG_SOFTMMU) += xen/
|
devices-dirs-$(CONFIG_SOFTMMU) += xen/
|
||||||
|
|
|
||||||
|
|
@ -21,7 +21,6 @@ common-obj-$(CONFIG_MACIO) += macio/
|
||||||
|
|
||||||
ifeq ($(CONFIG_PCI), y)
|
ifeq ($(CONFIG_PCI), y)
|
||||||
obj-$(CONFIG_KVM) += ivshmem.o
|
obj-$(CONFIG_KVM) += ivshmem.o
|
||||||
obj-$(CONFIG_LINUX) += vfio.o
|
|
||||||
endif
|
endif
|
||||||
|
|
||||||
obj-$(CONFIG_REALVIEW) += arm_sysctl.o
|
obj-$(CONFIG_REALVIEW) += arm_sysctl.o
|
||||||
|
|
|
||||||
|
|
@ -20,7 +20,7 @@
|
||||||
#include "hw/ppc/spapr.h"
|
#include "hw/ppc/spapr.h"
|
||||||
#include "hw/pci-host/spapr.h"
|
#include "hw/pci-host/spapr.h"
|
||||||
#include "linux/vfio.h"
|
#include "linux/vfio.h"
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||||||
#include "hw/misc/vfio.h"
|
#include "hw/vfio/vfio.h"
|
||||||
|
|
||||||
static Property spapr_phb_vfio_properties[] = {
|
static Property spapr_phb_vfio_properties[] = {
|
||||||
DEFINE_PROP_INT32("iommu", sPAPRPHBVFIOState, iommugroupid, -1),
|
DEFINE_PROP_INT32("iommu", sPAPRPHBVFIOState, iommugroupid, -1),
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,4 @@
|
||||||
|
ifeq ($(CONFIG_LINUX), y)
|
||||||
|
obj-$(CONFIG_SOFTMMU) += common.o
|
||||||
|
obj-$(CONFIG_PCI) += pci.o
|
||||||
|
endif
|
||||||
|
|
@ -0,0 +1,959 @@
|
||||||
|
/*
|
||||||
|
* generic functions used by VFIO devices
|
||||||
|
*
|
||||||
|
* Copyright Red Hat, Inc. 2012
|
||||||
|
*
|
||||||
|
* Authors:
|
||||||
|
* Alex Williamson <alex.williamson@redhat.com>
|
||||||
|
*
|
||||||
|
* This work is licensed under the terms of the GNU GPL, version 2. See
|
||||||
|
* the COPYING file in the top-level directory.
|
||||||
|
*
|
||||||
|
* Based on qemu-kvm device-assignment:
|
||||||
|
* Adapted for KVM by Qumranet.
|
||||||
|
* Copyright (c) 2007, Neocleus, Alex Novik (alex@neocleus.com)
|
||||||
|
* Copyright (c) 2007, Neocleus, Guy Zana (guy@neocleus.com)
|
||||||
|
* Copyright (C) 2008, Qumranet, Amit Shah (amit.shah@qumranet.com)
|
||||||
|
* Copyright (C) 2008, Red Hat, Amit Shah (amit.shah@redhat.com)
|
||||||
|
* Copyright (C) 2008, IBM, Muli Ben-Yehuda (muli@il.ibm.com)
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <sys/ioctl.h>
|
||||||
|
#include <sys/mman.h>
|
||||||
|
#include <linux/vfio.h>
|
||||||
|
|
||||||
|
#include "hw/vfio/vfio-common.h"
|
||||||
|
#include "hw/vfio/vfio.h"
|
||||||
|
#include "exec/address-spaces.h"
|
||||||
|
#include "exec/memory.h"
|
||||||
|
#include "hw/hw.h"
|
||||||
|
#include "qemu/error-report.h"
|
||||||
|
#include "sysemu/kvm.h"
|
||||||
|
#include "trace.h"
|
||||||
|
|
||||||
|
struct vfio_group_head vfio_group_list =
|
||||||
|
QLIST_HEAD_INITIALIZER(vfio_address_spaces);
|
||||||
|
struct vfio_as_head vfio_address_spaces =
|
||||||
|
QLIST_HEAD_INITIALIZER(vfio_address_spaces);
|
||||||
|
|
||||||
|
#ifdef CONFIG_KVM
|
||||||
|
/*
|
||||||
|
* We have a single VFIO pseudo device per KVM VM. Once created it lives
|
||||||
|
* for the life of the VM. Closing the file descriptor only drops our
|
||||||
|
* reference to it and the device's reference to kvm. Therefore once
|
||||||
|
* initialized, this file descriptor is only released on QEMU exit and
|
||||||
|
* we'll re-use it should another vfio device be attached before then.
|
||||||
|
*/
|
||||||
|
static int vfio_kvm_device_fd = -1;
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Common VFIO interrupt disable
|
||||||
|
*/
|
||||||
|
void vfio_disable_irqindex(VFIODevice *vbasedev, int index)
|
||||||
|
{
|
||||||
|
struct vfio_irq_set irq_set = {
|
||||||
|
.argsz = sizeof(irq_set),
|
||||||
|
.flags = VFIO_IRQ_SET_DATA_NONE | VFIO_IRQ_SET_ACTION_TRIGGER,
|
||||||
|
.index = index,
|
||||||
|
.start = 0,
|
||||||
|
.count = 0,
|
||||||
|
};
|
||||||
|
|
||||||
|
ioctl(vbasedev->fd, VFIO_DEVICE_SET_IRQS, &irq_set);
|
||||||
|
}
|
||||||
|
|
||||||
|
void vfio_unmask_single_irqindex(VFIODevice *vbasedev, int index)
|
||||||
|
{
|
||||||
|
struct vfio_irq_set irq_set = {
|
||||||
|
.argsz = sizeof(irq_set),
|
||||||
|
.flags = VFIO_IRQ_SET_DATA_NONE | VFIO_IRQ_SET_ACTION_UNMASK,
|
||||||
|
.index = index,
|
||||||
|
.start = 0,
|
||||||
|
.count = 1,
|
||||||
|
};
|
||||||
|
|
||||||
|
ioctl(vbasedev->fd, VFIO_DEVICE_SET_IRQS, &irq_set);
|
||||||
|
}
|
||||||
|
|
||||||
|
void vfio_mask_single_irqindex(VFIODevice *vbasedev, int index)
|
||||||
|
{
|
||||||
|
struct vfio_irq_set irq_set = {
|
||||||
|
.argsz = sizeof(irq_set),
|
||||||
|
.flags = VFIO_IRQ_SET_DATA_NONE | VFIO_IRQ_SET_ACTION_MASK,
|
||||||
|
.index = index,
|
||||||
|
.start = 0,
|
||||||
|
.count = 1,
|
||||||
|
};
|
||||||
|
|
||||||
|
ioctl(vbasedev->fd, VFIO_DEVICE_SET_IRQS, &irq_set);
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* IO Port/MMIO - Beware of the endians, VFIO is always little endian
|
||||||
|
*/
|
||||||
|
void vfio_region_write(void *opaque, hwaddr addr,
|
||||||
|
uint64_t data, unsigned size)
|
||||||
|
{
|
||||||
|
VFIORegion *region = opaque;
|
||||||
|
VFIODevice *vbasedev = region->vbasedev;
|
||||||
|
union {
|
||||||
|
uint8_t byte;
|
||||||
|
uint16_t word;
|
||||||
|
uint32_t dword;
|
||||||
|
uint64_t qword;
|
||||||
|
} buf;
|
||||||
|
|
||||||
|
switch (size) {
|
||||||
|
case 1:
|
||||||
|
buf.byte = data;
|
||||||
|
break;
|
||||||
|
case 2:
|
||||||
|
buf.word = cpu_to_le16(data);
|
||||||
|
break;
|
||||||
|
case 4:
|
||||||
|
buf.dword = cpu_to_le32(data);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
hw_error("vfio: unsupported write size, %d bytes", size);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (pwrite(vbasedev->fd, &buf, size, region->fd_offset + addr) != size) {
|
||||||
|
error_report("%s(%s:region%d+0x%"HWADDR_PRIx", 0x%"PRIx64
|
||||||
|
",%d) failed: %m",
|
||||||
|
__func__, vbasedev->name, region->nr,
|
||||||
|
addr, data, size);
|
||||||
|
}
|
||||||
|
|
||||||
|
trace_vfio_region_write(vbasedev->name, region->nr, addr, data, size);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* A read or write to a BAR always signals an INTx EOI. This will
|
||||||
|
* do nothing if not pending (including not in INTx mode). We assume
|
||||||
|
* that a BAR access is in response to an interrupt and that BAR
|
||||||
|
* accesses will service the interrupt. Unfortunately, we don't know
|
||||||
|
* which access will service the interrupt, so we're potentially
|
||||||
|
* getting quite a few host interrupts per guest interrupt.
|
||||||
|
*/
|
||||||
|
vbasedev->ops->vfio_eoi(vbasedev);
|
||||||
|
}
|
||||||
|
|
||||||
|
uint64_t vfio_region_read(void *opaque,
|
||||||
|
hwaddr addr, unsigned size)
|
||||||
|
{
|
||||||
|
VFIORegion *region = opaque;
|
||||||
|
VFIODevice *vbasedev = region->vbasedev;
|
||||||
|
union {
|
||||||
|
uint8_t byte;
|
||||||
|
uint16_t word;
|
||||||
|
uint32_t dword;
|
||||||
|
uint64_t qword;
|
||||||
|
} buf;
|
||||||
|
uint64_t data = 0;
|
||||||
|
|
||||||
|
if (pread(vbasedev->fd, &buf, size, region->fd_offset + addr) != size) {
|
||||||
|
error_report("%s(%s:region%d+0x%"HWADDR_PRIx", %d) failed: %m",
|
||||||
|
__func__, vbasedev->name, region->nr,
|
||||||
|
addr, size);
|
||||||
|
return (uint64_t)-1;
|
||||||
|
}
|
||||||
|
switch (size) {
|
||||||
|
case 1:
|
||||||
|
data = buf.byte;
|
||||||
|
break;
|
||||||
|
case 2:
|
||||||
|
data = le16_to_cpu(buf.word);
|
||||||
|
break;
|
||||||
|
case 4:
|
||||||
|
data = le32_to_cpu(buf.dword);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
hw_error("vfio: unsupported read size, %d bytes", size);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
trace_vfio_region_read(vbasedev->name, region->nr, addr, size, data);
|
||||||
|
|
||||||
|
/* Same as write above */
|
||||||
|
vbasedev->ops->vfio_eoi(vbasedev);
|
||||||
|
|
||||||
|
return data;
|
||||||
|
}
|
||||||
|
|
||||||
|
const MemoryRegionOps vfio_region_ops = {
|
||||||
|
.read = vfio_region_read,
|
||||||
|
.write = vfio_region_write,
|
||||||
|
.endianness = DEVICE_LITTLE_ENDIAN,
|
||||||
|
};
|
||||||
|
|
||||||
|
/*
|
||||||
|
* DMA - Mapping and unmapping for the "type1" IOMMU interface used on x86
|
||||||
|
*/
|
||||||
|
static int vfio_dma_unmap(VFIOContainer *container,
|
||||||
|
hwaddr iova, ram_addr_t size)
|
||||||
|
{
|
||||||
|
struct vfio_iommu_type1_dma_unmap unmap = {
|
||||||
|
.argsz = sizeof(unmap),
|
||||||
|
.flags = 0,
|
||||||
|
.iova = iova,
|
||||||
|
.size = size,
|
||||||
|
};
|
||||||
|
|
||||||
|
if (ioctl(container->fd, VFIO_IOMMU_UNMAP_DMA, &unmap)) {
|
||||||
|
error_report("VFIO_UNMAP_DMA: %d\n", -errno);
|
||||||
|
return -errno;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int vfio_dma_map(VFIOContainer *container, hwaddr iova,
|
||||||
|
ram_addr_t size, void *vaddr, bool readonly)
|
||||||
|
{
|
||||||
|
struct vfio_iommu_type1_dma_map map = {
|
||||||
|
.argsz = sizeof(map),
|
||||||
|
.flags = VFIO_DMA_MAP_FLAG_READ,
|
||||||
|
.vaddr = (__u64)(uintptr_t)vaddr,
|
||||||
|
.iova = iova,
|
||||||
|
.size = size,
|
||||||
|
};
|
||||||
|
|
||||||
|
if (!readonly) {
|
||||||
|
map.flags |= VFIO_DMA_MAP_FLAG_WRITE;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Try the mapping, if it fails with EBUSY, unmap the region and try
|
||||||
|
* again. This shouldn't be necessary, but we sometimes see it in
|
||||||
|
* the the VGA ROM space.
|
||||||
|
*/
|
||||||
|
if (ioctl(container->fd, VFIO_IOMMU_MAP_DMA, &map) == 0 ||
|
||||||
|
(errno == EBUSY && vfio_dma_unmap(container, iova, size) == 0 &&
|
||||||
|
ioctl(container->fd, VFIO_IOMMU_MAP_DMA, &map) == 0)) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
error_report("VFIO_MAP_DMA: %d\n", -errno);
|
||||||
|
return -errno;
|
||||||
|
}
|
||||||
|
|
||||||
|
static bool vfio_listener_skipped_section(MemoryRegionSection *section)
|
||||||
|
{
|
||||||
|
return (!memory_region_is_ram(section->mr) &&
|
||||||
|
!memory_region_is_iommu(section->mr)) ||
|
||||||
|
/*
|
||||||
|
* Sizing an enabled 64-bit BAR can cause spurious mappings to
|
||||||
|
* addresses in the upper part of the 64-bit address space. These
|
||||||
|
* are never accessed by the CPU and beyond the address width of
|
||||||
|
* some IOMMU hardware. TODO: VFIO should tell us the IOMMU width.
|
||||||
|
*/
|
||||||
|
section->offset_within_address_space & (1ULL << 63);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void vfio_iommu_map_notify(Notifier *n, void *data)
|
||||||
|
{
|
||||||
|
VFIOGuestIOMMU *giommu = container_of(n, VFIOGuestIOMMU, n);
|
||||||
|
VFIOContainer *container = giommu->container;
|
||||||
|
IOMMUTLBEntry *iotlb = data;
|
||||||
|
MemoryRegion *mr;
|
||||||
|
hwaddr xlat;
|
||||||
|
hwaddr len = iotlb->addr_mask + 1;
|
||||||
|
void *vaddr;
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
trace_vfio_iommu_map_notify(iotlb->iova,
|
||||||
|
iotlb->iova + iotlb->addr_mask);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* The IOMMU TLB entry we have just covers translation through
|
||||||
|
* this IOMMU to its immediate target. We need to translate
|
||||||
|
* it the rest of the way through to memory.
|
||||||
|
*/
|
||||||
|
mr = address_space_translate(&address_space_memory,
|
||||||
|
iotlb->translated_addr,
|
||||||
|
&xlat, &len, iotlb->perm & IOMMU_WO);
|
||||||
|
if (!memory_region_is_ram(mr)) {
|
||||||
|
error_report("iommu map to non memory area %"HWADDR_PRIx"\n",
|
||||||
|
xlat);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
/*
|
||||||
|
* Translation truncates length to the IOMMU page size,
|
||||||
|
* check that it did not truncate too much.
|
||||||
|
*/
|
||||||
|
if (len & iotlb->addr_mask) {
|
||||||
|
error_report("iommu has granularity incompatible with target AS\n");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if ((iotlb->perm & IOMMU_RW) != IOMMU_NONE) {
|
||||||
|
vaddr = memory_region_get_ram_ptr(mr) + xlat;
|
||||||
|
ret = vfio_dma_map(container, iotlb->iova,
|
||||||
|
iotlb->addr_mask + 1, vaddr,
|
||||||
|
!(iotlb->perm & IOMMU_WO) || mr->readonly);
|
||||||
|
if (ret) {
|
||||||
|
error_report("vfio_dma_map(%p, 0x%"HWADDR_PRIx", "
|
||||||
|
"0x%"HWADDR_PRIx", %p) = %d (%m)",
|
||||||
|
container, iotlb->iova,
|
||||||
|
iotlb->addr_mask + 1, vaddr, ret);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
ret = vfio_dma_unmap(container, iotlb->iova, iotlb->addr_mask + 1);
|
||||||
|
if (ret) {
|
||||||
|
error_report("vfio_dma_unmap(%p, 0x%"HWADDR_PRIx", "
|
||||||
|
"0x%"HWADDR_PRIx") = %d (%m)",
|
||||||
|
container, iotlb->iova,
|
||||||
|
iotlb->addr_mask + 1, ret);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void vfio_listener_region_add(MemoryListener *listener,
|
||||||
|
MemoryRegionSection *section)
|
||||||
|
{
|
||||||
|
VFIOContainer *container = container_of(listener, VFIOContainer,
|
||||||
|
iommu_data.type1.listener);
|
||||||
|
hwaddr iova, end;
|
||||||
|
Int128 llend;
|
||||||
|
void *vaddr;
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
if (vfio_listener_skipped_section(section)) {
|
||||||
|
trace_vfio_listener_region_add_skip(
|
||||||
|
section->offset_within_address_space,
|
||||||
|
section->offset_within_address_space +
|
||||||
|
int128_get64(int128_sub(section->size, int128_one())));
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (unlikely((section->offset_within_address_space & ~TARGET_PAGE_MASK) !=
|
||||||
|
(section->offset_within_region & ~TARGET_PAGE_MASK))) {
|
||||||
|
error_report("%s received unaligned region", __func__);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
iova = TARGET_PAGE_ALIGN(section->offset_within_address_space);
|
||||||
|
llend = int128_make64(section->offset_within_address_space);
|
||||||
|
llend = int128_add(llend, section->size);
|
||||||
|
llend = int128_and(llend, int128_exts64(TARGET_PAGE_MASK));
|
||||||
|
|
||||||
|
if (int128_ge(int128_make64(iova), llend)) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
memory_region_ref(section->mr);
|
||||||
|
|
||||||
|
if (memory_region_is_iommu(section->mr)) {
|
||||||
|
VFIOGuestIOMMU *giommu;
|
||||||
|
|
||||||
|
trace_vfio_listener_region_add_iommu(iova,
|
||||||
|
int128_get64(int128_sub(llend, int128_one())));
|
||||||
|
/*
|
||||||
|
* FIXME: We should do some checking to see if the
|
||||||
|
* capabilities of the host VFIO IOMMU are adequate to model
|
||||||
|
* the guest IOMMU
|
||||||
|
*
|
||||||
|
* FIXME: For VFIO iommu types which have KVM acceleration to
|
||||||
|
* avoid bouncing all map/unmaps through qemu this way, this
|
||||||
|
* would be the right place to wire that up (tell the KVM
|
||||||
|
* device emulation the VFIO iommu handles to use).
|
||||||
|
*/
|
||||||
|
/*
|
||||||
|
* This assumes that the guest IOMMU is empty of
|
||||||
|
* mappings at this point.
|
||||||
|
*
|
||||||
|
* One way of doing this is:
|
||||||
|
* 1. Avoid sharing IOMMUs between emulated devices or different
|
||||||
|
* IOMMU groups.
|
||||||
|
* 2. Implement VFIO_IOMMU_ENABLE in the host kernel to fail if
|
||||||
|
* there are some mappings in IOMMU.
|
||||||
|
*
|
||||||
|
* VFIO on SPAPR does that. Other IOMMU models may do that different,
|
||||||
|
* they must make sure there are no existing mappings or
|
||||||
|
* loop through existing mappings to map them into VFIO.
|
||||||
|
*/
|
||||||
|
giommu = g_malloc0(sizeof(*giommu));
|
||||||
|
giommu->iommu = section->mr;
|
||||||
|
giommu->container = container;
|
||||||
|
giommu->n.notify = vfio_iommu_map_notify;
|
||||||
|
QLIST_INSERT_HEAD(&container->giommu_list, giommu, giommu_next);
|
||||||
|
memory_region_register_iommu_notifier(giommu->iommu, &giommu->n);
|
||||||
|
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Here we assume that memory_region_is_ram(section->mr)==true */
|
||||||
|
|
||||||
|
end = int128_get64(llend);
|
||||||
|
vaddr = memory_region_get_ram_ptr(section->mr) +
|
||||||
|
section->offset_within_region +
|
||||||
|
(iova - section->offset_within_address_space);
|
||||||
|
|
||||||
|
trace_vfio_listener_region_add_ram(iova, end - 1, vaddr);
|
||||||
|
|
||||||
|
ret = vfio_dma_map(container, iova, end - iova, vaddr, section->readonly);
|
||||||
|
if (ret) {
|
||||||
|
error_report("vfio_dma_map(%p, 0x%"HWADDR_PRIx", "
|
||||||
|
"0x%"HWADDR_PRIx", %p) = %d (%m)",
|
||||||
|
container, iova, end - iova, vaddr, ret);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* On the initfn path, store the first error in the container so we
|
||||||
|
* can gracefully fail. Runtime, there's not much we can do other
|
||||||
|
* than throw a hardware error.
|
||||||
|
*/
|
||||||
|
if (!container->iommu_data.type1.initialized) {
|
||||||
|
if (!container->iommu_data.type1.error) {
|
||||||
|
container->iommu_data.type1.error = ret;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
hw_error("vfio: DMA mapping failed, unable to continue");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void vfio_listener_region_del(MemoryListener *listener,
|
||||||
|
MemoryRegionSection *section)
|
||||||
|
{
|
||||||
|
VFIOContainer *container = container_of(listener, VFIOContainer,
|
||||||
|
iommu_data.type1.listener);
|
||||||
|
hwaddr iova, end;
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
if (vfio_listener_skipped_section(section)) {
|
||||||
|
trace_vfio_listener_region_del_skip(
|
||||||
|
section->offset_within_address_space,
|
||||||
|
section->offset_within_address_space +
|
||||||
|
int128_get64(int128_sub(section->size, int128_one())));
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (unlikely((section->offset_within_address_space & ~TARGET_PAGE_MASK) !=
|
||||||
|
(section->offset_within_region & ~TARGET_PAGE_MASK))) {
|
||||||
|
error_report("%s received unaligned region", __func__);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (memory_region_is_iommu(section->mr)) {
|
||||||
|
VFIOGuestIOMMU *giommu;
|
||||||
|
|
||||||
|
QLIST_FOREACH(giommu, &container->giommu_list, giommu_next) {
|
||||||
|
if (giommu->iommu == section->mr) {
|
||||||
|
memory_region_unregister_iommu_notifier(&giommu->n);
|
||||||
|
QLIST_REMOVE(giommu, giommu_next);
|
||||||
|
g_free(giommu);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* FIXME: We assume the one big unmap below is adequate to
|
||||||
|
* remove any individual page mappings in the IOMMU which
|
||||||
|
* might have been copied into VFIO. This works for a page table
|
||||||
|
* based IOMMU where a big unmap flattens a large range of IO-PTEs.
|
||||||
|
* That may not be true for all IOMMU types.
|
||||||
|
*/
|
||||||
|
}
|
||||||
|
|
||||||
|
iova = TARGET_PAGE_ALIGN(section->offset_within_address_space);
|
||||||
|
end = (section->offset_within_address_space + int128_get64(section->size)) &
|
||||||
|
TARGET_PAGE_MASK;
|
||||||
|
|
||||||
|
if (iova >= end) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
trace_vfio_listener_region_del(iova, end - 1);
|
||||||
|
|
||||||
|
ret = vfio_dma_unmap(container, iova, end - iova);
|
||||||
|
memory_region_unref(section->mr);
|
||||||
|
if (ret) {
|
||||||
|
error_report("vfio_dma_unmap(%p, 0x%"HWADDR_PRIx", "
|
||||||
|
"0x%"HWADDR_PRIx") = %d (%m)",
|
||||||
|
container, iova, end - iova, ret);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
const MemoryListener vfio_memory_listener = {
|
||||||
|
.region_add = vfio_listener_region_add,
|
||||||
|
.region_del = vfio_listener_region_del,
|
||||||
|
};
|
||||||
|
|
||||||
|
void vfio_listener_release(VFIOContainer *container)
|
||||||
|
{
|
||||||
|
memory_listener_unregister(&container->iommu_data.type1.listener);
|
||||||
|
}
|
||||||
|
|
||||||
|
int vfio_mmap_region(Object *obj, VFIORegion *region,
|
||||||
|
MemoryRegion *mem, MemoryRegion *submem,
|
||||||
|
void **map, size_t size, off_t offset,
|
||||||
|
const char *name)
|
||||||
|
{
|
||||||
|
int ret = 0;
|
||||||
|
VFIODevice *vbasedev = region->vbasedev;
|
||||||
|
|
||||||
|
if (VFIO_ALLOW_MMAP && size && region->flags &
|
||||||
|
VFIO_REGION_INFO_FLAG_MMAP) {
|
||||||
|
int prot = 0;
|
||||||
|
|
||||||
|
if (region->flags & VFIO_REGION_INFO_FLAG_READ) {
|
||||||
|
prot |= PROT_READ;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (region->flags & VFIO_REGION_INFO_FLAG_WRITE) {
|
||||||
|
prot |= PROT_WRITE;
|
||||||
|
}
|
||||||
|
|
||||||
|
*map = mmap(NULL, size, prot, MAP_SHARED,
|
||||||
|
vbasedev->fd,
|
||||||
|
region->fd_offset + offset);
|
||||||
|
if (*map == MAP_FAILED) {
|
||||||
|
*map = NULL;
|
||||||
|
ret = -errno;
|
||||||
|
goto empty_region;
|
||||||
|
}
|
||||||
|
|
||||||
|
memory_region_init_ram_ptr(submem, obj, name, size, *map);
|
||||||
|
memory_region_set_skip_dump(submem);
|
||||||
|
} else {
|
||||||
|
empty_region:
|
||||||
|
/* Create a zero sized sub-region to make cleanup easy. */
|
||||||
|
memory_region_init(submem, obj, name, 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
memory_region_add_subregion(mem, offset, submem);
|
||||||
|
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
void vfio_reset_handler(void *opaque)
|
||||||
|
{
|
||||||
|
VFIOGroup *group;
|
||||||
|
VFIODevice *vbasedev;
|
||||||
|
|
||||||
|
QLIST_FOREACH(group, &vfio_group_list, next) {
|
||||||
|
QLIST_FOREACH(vbasedev, &group->device_list, next) {
|
||||||
|
vbasedev->ops->vfio_compute_needs_reset(vbasedev);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
QLIST_FOREACH(group, &vfio_group_list, next) {
|
||||||
|
QLIST_FOREACH(vbasedev, &group->device_list, next) {
|
||||||
|
if (vbasedev->needs_reset) {
|
||||||
|
vbasedev->ops->vfio_hot_reset_multi(vbasedev);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void vfio_kvm_device_add_group(VFIOGroup *group)
|
||||||
|
{
|
||||||
|
#ifdef CONFIG_KVM
|
||||||
|
struct kvm_device_attr attr = {
|
||||||
|
.group = KVM_DEV_VFIO_GROUP,
|
||||||
|
.attr = KVM_DEV_VFIO_GROUP_ADD,
|
||||||
|
.addr = (uint64_t)(unsigned long)&group->fd,
|
||||||
|
};
|
||||||
|
|
||||||
|
if (!kvm_enabled()) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (vfio_kvm_device_fd < 0) {
|
||||||
|
struct kvm_create_device cd = {
|
||||||
|
.type = KVM_DEV_TYPE_VFIO,
|
||||||
|
};
|
||||||
|
|
||||||
|
if (kvm_vm_ioctl(kvm_state, KVM_CREATE_DEVICE, &cd)) {
|
||||||
|
error_report("Failed to create KVM VFIO device: %m\n");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
vfio_kvm_device_fd = cd.fd;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (ioctl(vfio_kvm_device_fd, KVM_SET_DEVICE_ATTR, &attr)) {
|
||||||
|
error_report("Failed to add group %d to KVM VFIO device: %m",
|
||||||
|
group->groupid);
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
|
||||||
|
static void vfio_kvm_device_del_group(VFIOGroup *group)
|
||||||
|
{
|
||||||
|
#ifdef CONFIG_KVM
|
||||||
|
struct kvm_device_attr attr = {
|
||||||
|
.group = KVM_DEV_VFIO_GROUP,
|
||||||
|
.attr = KVM_DEV_VFIO_GROUP_DEL,
|
||||||
|
.addr = (uint64_t)(unsigned long)&group->fd,
|
||||||
|
};
|
||||||
|
|
||||||
|
if (vfio_kvm_device_fd < 0) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (ioctl(vfio_kvm_device_fd, KVM_SET_DEVICE_ATTR, &attr)) {
|
||||||
|
error_report("Failed to remove group %d from KVM VFIO device: %m",
|
||||||
|
group->groupid);
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
|
||||||
|
static VFIOAddressSpace *vfio_get_address_space(AddressSpace *as)
|
||||||
|
{
|
||||||
|
VFIOAddressSpace *space;
|
||||||
|
|
||||||
|
QLIST_FOREACH(space, &vfio_address_spaces, list) {
|
||||||
|
if (space->as == as) {
|
||||||
|
return space;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* No suitable VFIOAddressSpace, create a new one */
|
||||||
|
space = g_malloc0(sizeof(*space));
|
||||||
|
space->as = as;
|
||||||
|
QLIST_INIT(&space->containers);
|
||||||
|
|
||||||
|
QLIST_INSERT_HEAD(&vfio_address_spaces, space, list);
|
||||||
|
|
||||||
|
return space;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void vfio_put_address_space(VFIOAddressSpace *space)
|
||||||
|
{
|
||||||
|
if (QLIST_EMPTY(&space->containers)) {
|
||||||
|
QLIST_REMOVE(space, list);
|
||||||
|
g_free(space);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static int vfio_connect_container(VFIOGroup *group, AddressSpace *as)
|
||||||
|
{
|
||||||
|
VFIOContainer *container;
|
||||||
|
int ret, fd;
|
||||||
|
VFIOAddressSpace *space;
|
||||||
|
|
||||||
|
space = vfio_get_address_space(as);
|
||||||
|
|
||||||
|
QLIST_FOREACH(container, &space->containers, next) {
|
||||||
|
if (!ioctl(group->fd, VFIO_GROUP_SET_CONTAINER, &container->fd)) {
|
||||||
|
group->container = container;
|
||||||
|
QLIST_INSERT_HEAD(&container->group_list, group, container_next);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fd = qemu_open("/dev/vfio/vfio", O_RDWR);
|
||||||
|
if (fd < 0) {
|
||||||
|
error_report("vfio: failed to open /dev/vfio/vfio: %m");
|
||||||
|
ret = -errno;
|
||||||
|
goto put_space_exit;
|
||||||
|
}
|
||||||
|
|
||||||
|
ret = ioctl(fd, VFIO_GET_API_VERSION);
|
||||||
|
if (ret != VFIO_API_VERSION) {
|
||||||
|
error_report("vfio: supported vfio version: %d, "
|
||||||
|
"reported version: %d", VFIO_API_VERSION, ret);
|
||||||
|
ret = -EINVAL;
|
||||||
|
goto close_fd_exit;
|
||||||
|
}
|
||||||
|
|
||||||
|
container = g_malloc0(sizeof(*container));
|
||||||
|
container->space = space;
|
||||||
|
container->fd = fd;
|
||||||
|
if (ioctl(fd, VFIO_CHECK_EXTENSION, VFIO_TYPE1_IOMMU)) {
|
||||||
|
ret = ioctl(group->fd, VFIO_GROUP_SET_CONTAINER, &fd);
|
||||||
|
if (ret) {
|
||||||
|
error_report("vfio: failed to set group container: %m");
|
||||||
|
ret = -errno;
|
||||||
|
goto free_container_exit;
|
||||||
|
}
|
||||||
|
|
||||||
|
ret = ioctl(fd, VFIO_SET_IOMMU, VFIO_TYPE1_IOMMU);
|
||||||
|
if (ret) {
|
||||||
|
error_report("vfio: failed to set iommu for container: %m");
|
||||||
|
ret = -errno;
|
||||||
|
goto free_container_exit;
|
||||||
|
}
|
||||||
|
|
||||||
|
container->iommu_data.type1.listener = vfio_memory_listener;
|
||||||
|
container->iommu_data.release = vfio_listener_release;
|
||||||
|
|
||||||
|
memory_listener_register(&container->iommu_data.type1.listener,
|
||||||
|
container->space->as);
|
||||||
|
|
||||||
|
if (container->iommu_data.type1.error) {
|
||||||
|
ret = container->iommu_data.type1.error;
|
||||||
|
error_report("vfio: memory listener initialization failed for container");
|
||||||
|
goto listener_release_exit;
|
||||||
|
}
|
||||||
|
|
||||||
|
container->iommu_data.type1.initialized = true;
|
||||||
|
|
||||||
|
} else if (ioctl(fd, VFIO_CHECK_EXTENSION, VFIO_SPAPR_TCE_IOMMU)) {
|
||||||
|
ret = ioctl(group->fd, VFIO_GROUP_SET_CONTAINER, &fd);
|
||||||
|
if (ret) {
|
||||||
|
error_report("vfio: failed to set group container: %m");
|
||||||
|
ret = -errno;
|
||||||
|
goto free_container_exit;
|
||||||
|
}
|
||||||
|
ret = ioctl(fd, VFIO_SET_IOMMU, VFIO_SPAPR_TCE_IOMMU);
|
||||||
|
if (ret) {
|
||||||
|
error_report("vfio: failed to set iommu for container: %m");
|
||||||
|
ret = -errno;
|
||||||
|
goto free_container_exit;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* The host kernel code implementing VFIO_IOMMU_DISABLE is called
|
||||||
|
* when container fd is closed so we do not call it explicitly
|
||||||
|
* in this file.
|
||||||
|
*/
|
||||||
|
ret = ioctl(fd, VFIO_IOMMU_ENABLE);
|
||||||
|
if (ret) {
|
||||||
|
error_report("vfio: failed to enable container: %m");
|
||||||
|
ret = -errno;
|
||||||
|
goto free_container_exit;
|
||||||
|
}
|
||||||
|
|
||||||
|
container->iommu_data.type1.listener = vfio_memory_listener;
|
||||||
|
container->iommu_data.release = vfio_listener_release;
|
||||||
|
|
||||||
|
memory_listener_register(&container->iommu_data.type1.listener,
|
||||||
|
container->space->as);
|
||||||
|
|
||||||
|
} else {
|
||||||
|
error_report("vfio: No available IOMMU models");
|
||||||
|
ret = -EINVAL;
|
||||||
|
goto free_container_exit;
|
||||||
|
}
|
||||||
|
|
||||||
|
QLIST_INIT(&container->group_list);
|
||||||
|
QLIST_INSERT_HEAD(&space->containers, container, next);
|
||||||
|
|
||||||
|
group->container = container;
|
||||||
|
QLIST_INSERT_HEAD(&container->group_list, group, container_next);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
listener_release_exit:
|
||||||
|
vfio_listener_release(container);
|
||||||
|
|
||||||
|
free_container_exit:
|
||||||
|
g_free(container);
|
||||||
|
|
||||||
|
close_fd_exit:
|
||||||
|
close(fd);
|
||||||
|
|
||||||
|
put_space_exit:
|
||||||
|
vfio_put_address_space(space);
|
||||||
|
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void vfio_disconnect_container(VFIOGroup *group)
|
||||||
|
{
|
||||||
|
VFIOContainer *container = group->container;
|
||||||
|
|
||||||
|
if (ioctl(group->fd, VFIO_GROUP_UNSET_CONTAINER, &container->fd)) {
|
||||||
|
error_report("vfio: error disconnecting group %d from container",
|
||||||
|
group->groupid);
|
||||||
|
}
|
||||||
|
|
||||||
|
QLIST_REMOVE(group, container_next);
|
||||||
|
group->container = NULL;
|
||||||
|
|
||||||
|
if (QLIST_EMPTY(&container->group_list)) {
|
||||||
|
VFIOAddressSpace *space = container->space;
|
||||||
|
|
||||||
|
if (container->iommu_data.release) {
|
||||||
|
container->iommu_data.release(container);
|
||||||
|
}
|
||||||
|
QLIST_REMOVE(container, next);
|
||||||
|
trace_vfio_disconnect_container(container->fd);
|
||||||
|
close(container->fd);
|
||||||
|
g_free(container);
|
||||||
|
|
||||||
|
vfio_put_address_space(space);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
VFIOGroup *vfio_get_group(int groupid, AddressSpace *as)
|
||||||
|
{
|
||||||
|
VFIOGroup *group;
|
||||||
|
char path[32];
|
||||||
|
struct vfio_group_status status = { .argsz = sizeof(status) };
|
||||||
|
|
||||||
|
QLIST_FOREACH(group, &vfio_group_list, next) {
|
||||||
|
if (group->groupid == groupid) {
|
||||||
|
/* Found it. Now is it already in the right context? */
|
||||||
|
if (group->container->space->as == as) {
|
||||||
|
return group;
|
||||||
|
} else {
|
||||||
|
error_report("vfio: group %d used in multiple address spaces",
|
||||||
|
group->groupid);
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
group = g_malloc0(sizeof(*group));
|
||||||
|
|
||||||
|
snprintf(path, sizeof(path), "/dev/vfio/%d", groupid);
|
||||||
|
group->fd = qemu_open(path, O_RDWR);
|
||||||
|
if (group->fd < 0) {
|
||||||
|
error_report("vfio: error opening %s: %m", path);
|
||||||
|
goto free_group_exit;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (ioctl(group->fd, VFIO_GROUP_GET_STATUS, &status)) {
|
||||||
|
error_report("vfio: error getting group status: %m");
|
||||||
|
goto close_fd_exit;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!(status.flags & VFIO_GROUP_FLAGS_VIABLE)) {
|
||||||
|
error_report("vfio: error, group %d is not viable, please ensure "
|
||||||
|
"all devices within the iommu_group are bound to their "
|
||||||
|
"vfio bus driver.", groupid);
|
||||||
|
goto close_fd_exit;
|
||||||
|
}
|
||||||
|
|
||||||
|
group->groupid = groupid;
|
||||||
|
QLIST_INIT(&group->device_list);
|
||||||
|
|
||||||
|
if (vfio_connect_container(group, as)) {
|
||||||
|
error_report("vfio: failed to setup container for group %d", groupid);
|
||||||
|
goto close_fd_exit;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (QLIST_EMPTY(&vfio_group_list)) {
|
||||||
|
qemu_register_reset(vfio_reset_handler, NULL);
|
||||||
|
}
|
||||||
|
|
||||||
|
QLIST_INSERT_HEAD(&vfio_group_list, group, next);
|
||||||
|
|
||||||
|
vfio_kvm_device_add_group(group);
|
||||||
|
|
||||||
|
return group;
|
||||||
|
|
||||||
|
close_fd_exit:
|
||||||
|
close(group->fd);
|
||||||
|
|
||||||
|
free_group_exit:
|
||||||
|
g_free(group);
|
||||||
|
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
void vfio_put_group(VFIOGroup *group)
|
||||||
|
{
|
||||||
|
if (!QLIST_EMPTY(&group->device_list)) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
vfio_kvm_device_del_group(group);
|
||||||
|
vfio_disconnect_container(group);
|
||||||
|
QLIST_REMOVE(group, next);
|
||||||
|
trace_vfio_put_group(group->fd);
|
||||||
|
close(group->fd);
|
||||||
|
g_free(group);
|
||||||
|
|
||||||
|
if (QLIST_EMPTY(&vfio_group_list)) {
|
||||||
|
qemu_unregister_reset(vfio_reset_handler, NULL);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
int vfio_get_device(VFIOGroup *group, const char *name,
|
||||||
|
VFIODevice *vbasedev)
|
||||||
|
{
|
||||||
|
struct vfio_device_info dev_info = { .argsz = sizeof(dev_info) };
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
ret = ioctl(group->fd, VFIO_GROUP_GET_DEVICE_FD, name);
|
||||||
|
if (ret < 0) {
|
||||||
|
error_report("vfio: error getting device %s from group %d: %m",
|
||||||
|
name, group->groupid);
|
||||||
|
error_printf("Verify all devices in group %d are bound to vfio-<bus> "
|
||||||
|
"or pci-stub and not already in use\n", group->groupid);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
vbasedev->fd = ret;
|
||||||
|
vbasedev->group = group;
|
||||||
|
QLIST_INSERT_HEAD(&group->device_list, vbasedev, next);
|
||||||
|
|
||||||
|
ret = ioctl(vbasedev->fd, VFIO_DEVICE_GET_INFO, &dev_info);
|
||||||
|
if (ret) {
|
||||||
|
error_report("vfio: error getting device info: %m");
|
||||||
|
goto error;
|
||||||
|
}
|
||||||
|
|
||||||
|
vbasedev->num_irqs = dev_info.num_irqs;
|
||||||
|
vbasedev->num_regions = dev_info.num_regions;
|
||||||
|
vbasedev->flags = dev_info.flags;
|
||||||
|
|
||||||
|
trace_vfio_get_device(name, dev_info.flags, dev_info.num_regions,
|
||||||
|
dev_info.num_irqs);
|
||||||
|
|
||||||
|
vbasedev->reset_works = !!(dev_info.flags & VFIO_DEVICE_FLAGS_RESET);
|
||||||
|
|
||||||
|
ret = vbasedev->ops->vfio_populate_device(vbasedev);
|
||||||
|
|
||||||
|
error:
|
||||||
|
if (ret) {
|
||||||
|
vfio_put_base_device(vbasedev);
|
||||||
|
}
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
void vfio_put_base_device(VFIODevice *vbasedev)
|
||||||
|
{
|
||||||
|
QLIST_REMOVE(vbasedev, next);
|
||||||
|
vbasedev->group = NULL;
|
||||||
|
trace_vfio_put_base_device(vbasedev->fd);
|
||||||
|
close(vbasedev->fd);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int vfio_container_do_ioctl(AddressSpace *as, int32_t groupid,
|
||||||
|
int req, void *param)
|
||||||
|
{
|
||||||
|
VFIOGroup *group;
|
||||||
|
VFIOContainer *container;
|
||||||
|
int ret = -1;
|
||||||
|
|
||||||
|
group = vfio_get_group(groupid, as);
|
||||||
|
if (!group) {
|
||||||
|
error_report("vfio: group %d not registered", groupid);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
container = group->container;
|
||||||
|
if (group->container) {
|
||||||
|
ret = ioctl(container->fd, req, param);
|
||||||
|
if (ret < 0) {
|
||||||
|
error_report("vfio: failed to ioctl container: ret=%d, %s",
|
||||||
|
ret, strerror(errno));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
vfio_put_group(group);
|
||||||
|
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
int vfio_container_ioctl(AddressSpace *as, int32_t groupid,
|
||||||
|
int req, void *param)
|
||||||
|
{
|
||||||
|
/* We allow only certain ioctls to the container */
|
||||||
|
switch (req) {
|
||||||
|
case VFIO_CHECK_EXTENSION:
|
||||||
|
case VFIO_IOMMU_SPAPR_TCE_GET_INFO:
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
/* Return an error on unknown requests */
|
||||||
|
error_report("vfio: unsupported ioctl %X", req);
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
return vfio_container_do_ioctl(as, groupid, req, param);
|
||||||
|
}
|
||||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,151 @@
|
||||||
|
/*
|
||||||
|
* common header for vfio based device assignment support
|
||||||
|
*
|
||||||
|
* Copyright Red Hat, Inc. 2012
|
||||||
|
*
|
||||||
|
* Authors:
|
||||||
|
* Alex Williamson <alex.williamson@redhat.com>
|
||||||
|
*
|
||||||
|
* This work is licensed under the terms of the GNU GPL, version 2. See
|
||||||
|
* the COPYING file in the top-level directory.
|
||||||
|
*
|
||||||
|
* Based on qemu-kvm device-assignment:
|
||||||
|
* Adapted for KVM by Qumranet.
|
||||||
|
* Copyright (c) 2007, Neocleus, Alex Novik (alex@neocleus.com)
|
||||||
|
* Copyright (c) 2007, Neocleus, Guy Zana (guy@neocleus.com)
|
||||||
|
* Copyright (C) 2008, Qumranet, Amit Shah (amit.shah@qumranet.com)
|
||||||
|
* Copyright (C) 2008, Red Hat, Amit Shah (amit.shah@redhat.com)
|
||||||
|
* Copyright (C) 2008, IBM, Muli Ben-Yehuda (muli@il.ibm.com)
|
||||||
|
*/
|
||||||
|
#ifndef HW_VFIO_VFIO_COMMON_H
|
||||||
|
#define HW_VFIO_VFIO_COMMON_H
|
||||||
|
|
||||||
|
#include "qemu-common.h"
|
||||||
|
#include "exec/address-spaces.h"
|
||||||
|
#include "exec/memory.h"
|
||||||
|
#include "qemu/queue.h"
|
||||||
|
#include "qemu/notify.h"
|
||||||
|
|
||||||
|
/*#define DEBUG_VFIO*/
|
||||||
|
#ifdef DEBUG_VFIO
|
||||||
|
#define DPRINTF(fmt, ...) \
|
||||||
|
do { fprintf(stderr, "vfio: " fmt, ## __VA_ARGS__); } while (0)
|
||||||
|
#else
|
||||||
|
#define DPRINTF(fmt, ...) \
|
||||||
|
do { } while (0)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/* Extra debugging, trap acceleration paths for more logging */
|
||||||
|
#define VFIO_ALLOW_MMAP 1
|
||||||
|
#define VFIO_ALLOW_KVM_INTX 1
|
||||||
|
#define VFIO_ALLOW_KVM_MSI 1
|
||||||
|
#define VFIO_ALLOW_KVM_MSIX 1
|
||||||
|
|
||||||
|
enum {
|
||||||
|
VFIO_DEVICE_TYPE_PCI = 0,
|
||||||
|
};
|
||||||
|
|
||||||
|
typedef struct VFIORegion {
|
||||||
|
struct VFIODevice *vbasedev;
|
||||||
|
off_t fd_offset; /* offset of region within device fd */
|
||||||
|
MemoryRegion mem; /* slow, read/write access */
|
||||||
|
MemoryRegion mmap_mem; /* direct mapped access */
|
||||||
|
void *mmap;
|
||||||
|
size_t size;
|
||||||
|
uint32_t flags; /* VFIO region flags (rd/wr/mmap) */
|
||||||
|
uint8_t nr; /* cache the region number for debug */
|
||||||
|
} VFIORegion;
|
||||||
|
|
||||||
|
typedef struct VFIOAddressSpace {
|
||||||
|
AddressSpace *as;
|
||||||
|
QLIST_HEAD(, VFIOContainer) containers;
|
||||||
|
QLIST_ENTRY(VFIOAddressSpace) list;
|
||||||
|
} VFIOAddressSpace;
|
||||||
|
|
||||||
|
struct VFIOGroup;
|
||||||
|
|
||||||
|
typedef struct VFIOType1 {
|
||||||
|
MemoryListener listener;
|
||||||
|
int error;
|
||||||
|
bool initialized;
|
||||||
|
} VFIOType1;
|
||||||
|
|
||||||
|
typedef struct VFIOContainer {
|
||||||
|
VFIOAddressSpace *space;
|
||||||
|
int fd; /* /dev/vfio/vfio, empowered by the attached groups */
|
||||||
|
struct {
|
||||||
|
/* enable abstraction to support various iommu backends */
|
||||||
|
union {
|
||||||
|
VFIOType1 type1;
|
||||||
|
};
|
||||||
|
void (*release)(struct VFIOContainer *);
|
||||||
|
} iommu_data;
|
||||||
|
QLIST_HEAD(, VFIOGuestIOMMU) giommu_list;
|
||||||
|
QLIST_HEAD(, VFIOGroup) group_list;
|
||||||
|
QLIST_ENTRY(VFIOContainer) next;
|
||||||
|
} VFIOContainer;
|
||||||
|
|
||||||
|
typedef struct VFIOGuestIOMMU {
|
||||||
|
VFIOContainer *container;
|
||||||
|
MemoryRegion *iommu;
|
||||||
|
Notifier n;
|
||||||
|
QLIST_ENTRY(VFIOGuestIOMMU) giommu_next;
|
||||||
|
} VFIOGuestIOMMU;
|
||||||
|
|
||||||
|
typedef struct VFIODeviceOps VFIODeviceOps;
|
||||||
|
|
||||||
|
typedef struct VFIODevice {
|
||||||
|
QLIST_ENTRY(VFIODevice) next;
|
||||||
|
struct VFIOGroup *group;
|
||||||
|
char *name;
|
||||||
|
int fd;
|
||||||
|
int type;
|
||||||
|
bool reset_works;
|
||||||
|
bool needs_reset;
|
||||||
|
VFIODeviceOps *ops;
|
||||||
|
unsigned int num_irqs;
|
||||||
|
unsigned int num_regions;
|
||||||
|
unsigned int flags;
|
||||||
|
} VFIODevice;
|
||||||
|
|
||||||
|
struct VFIODeviceOps {
|
||||||
|
void (*vfio_compute_needs_reset)(VFIODevice *vdev);
|
||||||
|
int (*vfio_hot_reset_multi)(VFIODevice *vdev);
|
||||||
|
void (*vfio_eoi)(VFIODevice *vdev);
|
||||||
|
int (*vfio_populate_device)(VFIODevice *vdev);
|
||||||
|
};
|
||||||
|
|
||||||
|
typedef struct VFIOGroup {
|
||||||
|
int fd;
|
||||||
|
int groupid;
|
||||||
|
VFIOContainer *container;
|
||||||
|
QLIST_HEAD(, VFIODevice) device_list;
|
||||||
|
QLIST_ENTRY(VFIOGroup) next;
|
||||||
|
QLIST_ENTRY(VFIOGroup) container_next;
|
||||||
|
} VFIOGroup;
|
||||||
|
|
||||||
|
void vfio_put_base_device(VFIODevice *vbasedev);
|
||||||
|
void vfio_disable_irqindex(VFIODevice *vbasedev, int index);
|
||||||
|
void vfio_unmask_single_irqindex(VFIODevice *vbasedev, int index);
|
||||||
|
void vfio_mask_single_irqindex(VFIODevice *vbasedev, int index);
|
||||||
|
void vfio_region_write(void *opaque, hwaddr addr,
|
||||||
|
uint64_t data, unsigned size);
|
||||||
|
uint64_t vfio_region_read(void *opaque,
|
||||||
|
hwaddr addr, unsigned size);
|
||||||
|
void vfio_listener_release(VFIOContainer *container);
|
||||||
|
int vfio_mmap_region(Object *vdev, VFIORegion *region,
|
||||||
|
MemoryRegion *mem, MemoryRegion *submem,
|
||||||
|
void **map, size_t size, off_t offset,
|
||||||
|
const char *name);
|
||||||
|
void vfio_reset_handler(void *opaque);
|
||||||
|
VFIOGroup *vfio_get_group(int groupid, AddressSpace *as);
|
||||||
|
void vfio_put_group(VFIOGroup *group);
|
||||||
|
int vfio_get_device(VFIOGroup *group, const char *name,
|
||||||
|
VFIODevice *vbasedev);
|
||||||
|
|
||||||
|
extern const MemoryRegionOps vfio_region_ops;
|
||||||
|
extern const MemoryListener vfio_memory_listener;
|
||||||
|
extern QLIST_HEAD(vfio_group_head, VFIOGroup) vfio_group_list;
|
||||||
|
extern QLIST_HEAD(vfio_as_head, VFIOAddressSpace) vfio_address_spaces;
|
||||||
|
|
||||||
|
#endif /* !HW_VFIO_VFIO_COMMON_H */
|
||||||
79
trace-events
79
trace-events
|
|
@ -1351,6 +1351,85 @@ xen_pv_mmio_write(uint64_t addr) "WARNING: write to Xen PV Device MMIO space (ad
|
||||||
pci_cfg_read(const char *dev, unsigned devid, unsigned fnid, unsigned offs, unsigned val) "%s %02u:%u @0x%x -> 0x%x"
|
pci_cfg_read(const char *dev, unsigned devid, unsigned fnid, unsigned offs, unsigned val) "%s %02u:%u @0x%x -> 0x%x"
|
||||||
pci_cfg_write(const char *dev, unsigned devid, unsigned fnid, unsigned offs, unsigned val) "%s %02u:%u @0x%x <- 0x%x"
|
pci_cfg_write(const char *dev, unsigned devid, unsigned fnid, unsigned offs, unsigned val) "%s %02u:%u @0x%x <- 0x%x"
|
||||||
|
|
||||||
|
# hw/vfio/vfio-pci.c
|
||||||
|
vfio_intx_interrupt(const char *name, char line) " (%s) Pin %c"
|
||||||
|
vfio_eoi(const char *name) " (%s) EOI"
|
||||||
|
vfio_enable_intx_kvm(const char *name) " (%s) KVM INTx accel enabled"
|
||||||
|
vfio_disable_intx_kvm(const char *name) " (%s) KVM INTx accel disabled"
|
||||||
|
vfio_update_irq(const char *name, int new_irq, int target_irq) " (%s) IRQ moved %d -> %d"
|
||||||
|
vfio_enable_intx(const char *name) " (%s)"
|
||||||
|
vfio_disable_intx(const char *name) " (%s)"
|
||||||
|
vfio_msi_interrupt(const char *name, int index, uint64_t addr, int data) " (%s) vector %d 0x%"PRIx64"/0x%x"
|
||||||
|
vfio_msix_vector_do_use(const char *name, int index) " (%s) vector %d used"
|
||||||
|
vfio_msix_vector_release(const char *name, int index) " (%s) vector %d released"
|
||||||
|
vfio_enable_msix(const char *name) " (%s)"
|
||||||
|
vfio_enable_msi(const char *name, int nr_vectors) " (%s) Enabled %d MSI vectors"
|
||||||
|
vfio_disable_msix(const char *name) " (%s)"
|
||||||
|
vfio_disable_msi(const char *name) " (%s)"
|
||||||
|
vfio_pci_load_rom(const char *name, unsigned long size, unsigned long offset, unsigned long flags) "Device %s ROM:\n size: 0x%lx, offset: 0x%lx, flags: 0x%lx"
|
||||||
|
vfio_rom_read(const char *name, uint64_t addr, int size, uint64_t data) " (%s, 0x%"PRIx64", 0x%x) = 0x%"PRIx64
|
||||||
|
vfio_pci_size_rom(const char *name, int size) "%s ROM size 0x%x"
|
||||||
|
vfio_vga_write(uint64_t addr, uint64_t data, int size) " (0x%"PRIx64", 0x%"PRIx64", %d)"
|
||||||
|
vfio_vga_read(uint64_t addr, int size, uint64_t data) " (0x%"PRIx64", %d) = 0x%"PRIx64
|
||||||
|
# remove ) =
|
||||||
|
vfio_generic_window_quirk_read(const char * region_name, const char *name, int index, uint64_t addr, int size, uint64_t data) "%s read(%s:BAR%d+0x%"PRIx64", %d = 0x%"PRIx64
|
||||||
|
## remove )
|
||||||
|
vfio_generic_window_quirk_write(const char * region_name, const char *name, int index, uint64_t addr, uint64_t data, int size) "%s write(%s:BAR%d+0x%"PRIx64", 0x%"PRIx64", %d"
|
||||||
|
# remove ) =
|
||||||
|
vfio_generic_quirk_read(const char * region_name, const char *name, int index, uint64_t addr, int size, uint64_t data) "%s read(%s:BAR%d+0x%"PRIx64", %d = 0x%"PRIx64
|
||||||
|
# remove )
|
||||||
|
vfio_generic_quirk_write(const char * region_name, const char *name, int index, uint64_t addr, uint64_t data, int size) "%s write(%s:BAR%d+0x%"PRIx64", 0x%"PRIx64", %d"
|
||||||
|
vfio_ati_3c3_quirk_read(uint64_t data) " (0x3c3, 1) = 0x%"PRIx64
|
||||||
|
vfio_vga_probe_ati_3c3_quirk(const char *name) "Enabled ATI/AMD quirk 0x3c3 BAR4for device %s"
|
||||||
|
vfio_probe_ati_bar4_window_quirk(const char *name) "Enabled ATI/AMD BAR4 window quirk for device %s"
|
||||||
|
#issue with )
|
||||||
|
vfio_rtl8168_window_quirk_read_fake(const char *region_name, const char *name) "%s fake read(%s"
|
||||||
|
vfio_rtl8168_window_quirk_read_table(const char *region_name, const char *name) "%s MSI-X table read(%s"
|
||||||
|
vfio_rtl8168_window_quirk_read_direct(const char *region_name, const char *name) "%s direct read(%s"
|
||||||
|
vfio_rtl8168_window_quirk_write_table(const char *region_name, const char *name) "%s MSI-X table write(%s"
|
||||||
|
vfio_rtl8168_window_quirk_write_direct(const char *region_name, const char *name) "%s direct write(%s"
|
||||||
|
vfio_probe_rtl8168_bar2_window_quirk(const char *name) "Enabled RTL8168 BAR2 window quirk for device %s"
|
||||||
|
vfio_probe_ati_bar2_4000_quirk(const char *name) "Enabled ATI/AMD BAR2 0x4000 quirk for device %s"
|
||||||
|
vfio_nvidia_3d0_quirk_read(int size, uint64_t data) " (0x3d0, %d) = 0x%"PRIx64
|
||||||
|
vfio_nvidia_3d0_quirk_write(uint64_t data, int size) " (0x3d0, 0x%"PRIx64", %d)"
|
||||||
|
vfio_vga_probe_nvidia_3d0_quirk(const char *name) "Enabled NVIDIA VGA 0x3d0 quirk for device %s"
|
||||||
|
vfio_probe_nvidia_bar5_window_quirk(const char *name) "Enabled NVIDIA BAR5 window quirk for device %s"
|
||||||
|
vfio_probe_nvidia_bar0_88000_quirk(const char *name) "Enabled NVIDIA BAR0 0x88000 quirk for device %s"
|
||||||
|
vfio_probe_nvidia_bar0_1800_quirk_id(int id) "Nvidia NV%02x"
|
||||||
|
vfio_probe_nvidia_bar0_1800_quirk(const char *name) "Enabled NVIDIA BAR0 0x1800 quirk for device %s"
|
||||||
|
vfio_pci_read_config(const char *name, int addr, int len, int val) " (%s, @0x%x, len=0x%x) %x"
|
||||||
|
vfio_pci_write_config(const char *name, int addr, int val, int len) " (%s, @0x%x, 0x%x, len=0x%x)"
|
||||||
|
vfio_setup_msi(const char *name, int pos) "%s PCI MSI CAP @0x%x"
|
||||||
|
vfio_early_setup_msix(const char *name, int pos, int table_bar, int offset, int entries) "%s PCI MSI-X CAP @0x%x, BAR %d, offset 0x%x, entries %d"
|
||||||
|
vfio_check_pcie_flr(const char *name) "%s Supports FLR via PCIe cap"
|
||||||
|
vfio_check_pm_reset(const char *name) "%s Supports PM reset"
|
||||||
|
vfio_check_af_flr(const char *name) "%s Supports FLR via AF cap"
|
||||||
|
vfio_pci_hot_reset(const char *name, const char *type) " (%s) %s"
|
||||||
|
vfio_pci_hot_reset_has_dep_devices(const char *name) "%s: hot reset dependent devices:"
|
||||||
|
vfio_pci_hot_reset_dep_devices(int domain, int bus, int slot, int function, int group_id) "\t%04x:%02x:%02x.%x group %d"
|
||||||
|
vfio_pci_hot_reset_result(const char *name, const char *result) "%s hot reset: %s"
|
||||||
|
vfio_populate_device_region(const char *region_name, int index, unsigned long size, unsigned long offset, unsigned long flags) "Device %s region %d:\n size: 0x%lx, offset: 0x%lx, flags: 0x%lx"
|
||||||
|
vfio_populate_device_config(const char *name, unsigned long size, unsigned long offset, unsigned long flags) "Device %s config:\n size: 0x%lx, offset: 0x%lx, flags: 0x%lx"
|
||||||
|
vfio_populate_device_get_irq_info_failure(void) "VFIO_DEVICE_GET_IRQ_INFO failure: %m"
|
||||||
|
vfio_initfn(const char *name, int group_id) " (%s) group %d"
|
||||||
|
vfio_pci_reset(const char *name) " (%s)"
|
||||||
|
vfio_pci_reset_flr(const char *name) "%s FLR/VFIO_DEVICE_RESET"
|
||||||
|
vfio_pci_reset_pm(const char *name) "%s PCI PM Reset"
|
||||||
|
|
||||||
|
# hw/vfio/vfio-common.c
|
||||||
|
vfio_region_write(const char *name, int index, uint64_t addr, uint64_t data, unsigned size) " (%s:region%d+0x%"PRIx64", 0x%"PRIx64 ", %d)"
|
||||||
|
vfio_region_read(char *name, int index, uint64_t addr, unsigned size, uint64_t data) " (%s:region%d+0x%"PRIx64", %d) = 0x%"PRIx64
|
||||||
|
vfio_iommu_map_notify(uint64_t iova_start, uint64_t iova_end) "iommu map @ %"PRIx64" - %"PRIx64
|
||||||
|
vfio_listener_region_add_skip(uint64_t start, uint64_t end) "SKIPPING region_add %"PRIx64" - %"PRIx64
|
||||||
|
vfio_listener_region_add_iommu(uint64_t start, uint64_t end) "region_add [iommu] %"PRIx64" - %"PRIx64
|
||||||
|
vfio_listener_region_add_ram(uint64_t iova_start, uint64_t iova_end, void *vaddr) "region_add [ram] %"PRIx64" - %"PRIx64" [%p]"
|
||||||
|
vfio_listener_region_del_skip(uint64_t start, uint64_t end) "SKIPPING region_del %"PRIx64" - %"PRIx64
|
||||||
|
vfio_listener_region_del(uint64_t start, uint64_t end) "region_del %"PRIx64" - %"PRIx64
|
||||||
|
vfio_disconnect_container(int fd) "close container->fd=%d"
|
||||||
|
vfio_put_group(int fd) "close group->fd=%d"
|
||||||
|
vfio_get_device(const char * name, unsigned int flags, unsigned int num_regions, unsigned int num_irqs) "Device %s flags: %u, regions: %u, irqs: %u"
|
||||||
|
vfio_put_base_device(int fd) "close vdev->fd=%d"
|
||||||
|
|
||||||
#hw/acpi/memory_hotplug.c
|
#hw/acpi/memory_hotplug.c
|
||||||
mhp_acpi_invalid_slot_selected(uint32_t slot) "0x%"PRIx32
|
mhp_acpi_invalid_slot_selected(uint32_t slot) "0x%"PRIx32
|
||||||
mhp_acpi_read_addr_lo(uint32_t slot, uint32_t addr) "slot[0x%"PRIx32"] addr lo: 0x%"PRIx32
|
mhp_acpi_read_addr_lo(uint32_t slot, uint32_t addr) "slot[0x%"PRIx32"] addr lo: 0x%"PRIx32
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue