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Diffstat (limited to 'hw/vfio/spapr.c')
-rw-r--r--hw/vfio/spapr.c108
1 files changed, 73 insertions, 35 deletions
diff --git a/hw/vfio/spapr.c b/hw/vfio/spapr.c
index 83da2f7ec2..5c6426e697 100644
--- a/hw/vfio/spapr.c
+++ b/hw/vfio/spapr.c
@@ -24,6 +24,12 @@
#include "qapi/error.h"
#include "trace.h"
+typedef struct VFIOSpaprContainer {
+ VFIOContainer container;
+ MemoryListener prereg_listener;
+ QLIST_HEAD(, VFIOHostDMAWindow) hostwin_list;
+} VFIOSpaprContainer;
+
static bool vfio_prereg_listener_skipped_section(MemoryRegionSection *section)
{
if (memory_region_is_iommu(section->mr)) {
@@ -44,8 +50,10 @@ static void *vfio_prereg_gpa_to_vaddr(MemoryRegionSection *section, hwaddr gpa)
static void vfio_prereg_listener_region_add(MemoryListener *listener,
MemoryRegionSection *section)
{
- VFIOContainer *container = container_of(listener, VFIOContainer,
- prereg_listener);
+ VFIOSpaprContainer *scontainer = container_of(listener, VFIOSpaprContainer,
+ prereg_listener);
+ VFIOContainer *container = &scontainer->container;
+ VFIOContainerBase *bcontainer = &container->bcontainer;
const hwaddr gpa = section->offset_within_address_space;
hwaddr end;
int ret;
@@ -88,9 +96,9 @@ static void vfio_prereg_listener_region_add(MemoryListener *listener,
* can gracefully fail. Runtime, there's not much we can do other
* than throw a hardware error.
*/
- if (!container->initialized) {
- if (!container->error) {
- error_setg_errno(&container->error, -ret,
+ if (!bcontainer->initialized) {
+ if (!bcontainer->error) {
+ error_setg_errno(&bcontainer->error, -ret,
"Memory registering failed");
}
} else {
@@ -102,8 +110,9 @@ static void vfio_prereg_listener_region_add(MemoryListener *listener,
static void vfio_prereg_listener_region_del(MemoryListener *listener,
MemoryRegionSection *section)
{
- VFIOContainer *container = container_of(listener, VFIOContainer,
- prereg_listener);
+ VFIOSpaprContainer *scontainer = container_of(listener, VFIOSpaprContainer,
+ prereg_listener);
+ VFIOContainer *container = &scontainer->container;
const hwaddr gpa = section->offset_within_address_space;
hwaddr end;
int ret;
@@ -146,12 +155,12 @@ static const MemoryListener vfio_prereg_listener = {
.region_del = vfio_prereg_listener_region_del,
};
-static void vfio_host_win_add(VFIOContainer *container, hwaddr min_iova,
+static void vfio_host_win_add(VFIOSpaprContainer *scontainer, hwaddr min_iova,
hwaddr max_iova, uint64_t iova_pgsizes)
{
VFIOHostDMAWindow *hostwin;
- QLIST_FOREACH(hostwin, &container->hostwin_list, hostwin_next) {
+ QLIST_FOREACH(hostwin, &scontainer->hostwin_list, hostwin_next) {
if (ranges_overlap(hostwin->min_iova,
hostwin->max_iova - hostwin->min_iova + 1,
min_iova,
@@ -165,15 +174,15 @@ static void vfio_host_win_add(VFIOContainer *container, hwaddr min_iova,
hostwin->min_iova = min_iova;
hostwin->max_iova = max_iova;
hostwin->iova_pgsizes = iova_pgsizes;
- QLIST_INSERT_HEAD(&container->hostwin_list, hostwin, hostwin_next);
+ QLIST_INSERT_HEAD(&scontainer->hostwin_list, hostwin, hostwin_next);
}
-static int vfio_host_win_del(VFIOContainer *container,
+static int vfio_host_win_del(VFIOSpaprContainer *scontainer,
hwaddr min_iova, hwaddr max_iova)
{
VFIOHostDMAWindow *hostwin;
- QLIST_FOREACH(hostwin, &container->hostwin_list, hostwin_next) {
+ QLIST_FOREACH(hostwin, &scontainer->hostwin_list, hostwin_next) {
if (hostwin->min_iova == min_iova && hostwin->max_iova == max_iova) {
QLIST_REMOVE(hostwin, hostwin_next);
g_free(hostwin);
@@ -184,7 +193,7 @@ static int vfio_host_win_del(VFIOContainer *container,
return -1;
}
-static VFIOHostDMAWindow *vfio_find_hostwin(VFIOContainer *container,
+static VFIOHostDMAWindow *vfio_find_hostwin(VFIOSpaprContainer *container,
hwaddr iova, hwaddr end)
{
VFIOHostDMAWindow *hostwin;
@@ -226,6 +235,7 @@ static int vfio_spapr_create_window(VFIOContainer *container,
hwaddr *pgsize)
{
int ret = 0;
+ VFIOContainerBase *bcontainer = &container->bcontainer;
IOMMUMemoryRegion *iommu_mr = IOMMU_MEMORY_REGION(section->mr);
uint64_t pagesize = memory_region_iommu_get_min_page_size(iommu_mr), pgmask;
unsigned entries, bits_total, bits_per_level, max_levels;
@@ -239,13 +249,13 @@ static int vfio_spapr_create_window(VFIOContainer *container,
if (pagesize > rampagesize) {
pagesize = rampagesize;
}
- pgmask = container->pgsizes & (pagesize | (pagesize - 1));
+ pgmask = bcontainer->pgsizes & (pagesize | (pagesize - 1));
pagesize = pgmask ? (1ULL << (63 - clz64(pgmask))) : 0;
if (!pagesize) {
error_report("Host doesn't support page size 0x%"PRIx64
", the supported mask is 0x%lx",
memory_region_iommu_get_min_page_size(iommu_mr),
- container->pgsizes);
+ bcontainer->pgsizes);
return -EINVAL;
}
@@ -313,10 +323,15 @@ static int vfio_spapr_create_window(VFIOContainer *container,
return 0;
}
-int vfio_container_add_section_window(VFIOContainer *container,
- MemoryRegionSection *section,
- Error **errp)
+static int
+vfio_spapr_container_add_section_window(VFIOContainerBase *bcontainer,
+ MemoryRegionSection *section,
+ Error **errp)
{
+ VFIOContainer *container = container_of(bcontainer, VFIOContainer,
+ bcontainer);
+ VFIOSpaprContainer *scontainer = container_of(container, VFIOSpaprContainer,
+ container);
VFIOHostDMAWindow *hostwin;
hwaddr pgsize = 0;
int ret;
@@ -332,7 +347,7 @@ int vfio_container_add_section_window(VFIOContainer *container,
iova = section->offset_within_address_space;
end = iova + int128_get64(section->size) - 1;
- if (!vfio_find_hostwin(container, iova, end)) {
+ if (!vfio_find_hostwin(scontainer, iova, end)) {
error_setg(errp, "Container %p can't map guest IOVA region"
" 0x%"HWADDR_PRIx"..0x%"HWADDR_PRIx, container,
iova, end);
@@ -346,7 +361,7 @@ int vfio_container_add_section_window(VFIOContainer *container,
}
/* For now intersections are not allowed, we may relax this later */
- QLIST_FOREACH(hostwin, &container->hostwin_list, hostwin_next) {
+ QLIST_FOREACH(hostwin, &scontainer->hostwin_list, hostwin_next) {
if (ranges_overlap(hostwin->min_iova,
hostwin->max_iova - hostwin->min_iova + 1,
section->offset_within_address_space,
@@ -368,7 +383,7 @@ int vfio_container_add_section_window(VFIOContainer *container,
return ret;
}
- vfio_host_win_add(container, section->offset_within_address_space,
+ vfio_host_win_add(scontainer, section->offset_within_address_space,
section->offset_within_address_space +
int128_get64(section->size) - 1, pgsize);
#ifdef CONFIG_KVM
@@ -401,16 +416,22 @@ int vfio_container_add_section_window(VFIOContainer *container,
return 0;
}
-void vfio_container_del_section_window(VFIOContainer *container,
- MemoryRegionSection *section)
+static void
+vfio_spapr_container_del_section_window(VFIOContainerBase *bcontainer,
+ MemoryRegionSection *section)
{
+ VFIOContainer *container = container_of(bcontainer, VFIOContainer,
+ bcontainer);
+ VFIOSpaprContainer *scontainer = container_of(container, VFIOSpaprContainer,
+ container);
+
if (container->iommu_type != VFIO_SPAPR_TCE_v2_IOMMU) {
return;
}
vfio_spapr_remove_window(container,
section->offset_within_address_space);
- if (vfio_host_win_del(container,
+ if (vfio_host_win_del(scontainer,
section->offset_within_address_space,
section->offset_within_address_space +
int128_get64(section->size) - 1) < 0) {
@@ -419,13 +440,26 @@ void vfio_container_del_section_window(VFIOContainer *container,
}
}
+static VFIOIOMMUOps vfio_iommu_spapr_ops;
+
+static void setup_spapr_ops(VFIOContainerBase *bcontainer)
+{
+ vfio_iommu_spapr_ops = *bcontainer->ops;
+ vfio_iommu_spapr_ops.add_window = vfio_spapr_container_add_section_window;
+ vfio_iommu_spapr_ops.del_window = vfio_spapr_container_del_section_window;
+ bcontainer->ops = &vfio_iommu_spapr_ops;
+}
+
int vfio_spapr_container_init(VFIOContainer *container, Error **errp)
{
+ VFIOContainerBase *bcontainer = &container->bcontainer;
+ VFIOSpaprContainer *scontainer = container_of(container, VFIOSpaprContainer,
+ container);
struct vfio_iommu_spapr_tce_info info;
bool v2 = container->iommu_type == VFIO_SPAPR_TCE_v2_IOMMU;
int ret, fd = container->fd;
- QLIST_INIT(&container->hostwin_list);
+ QLIST_INIT(&scontainer->hostwin_list);
/*
* The host kernel code implementing VFIO_IOMMU_DISABLE is called
@@ -439,13 +473,13 @@ int vfio_spapr_container_init(VFIOContainer *container, Error **errp)
return -errno;
}
} else {
- container->prereg_listener = vfio_prereg_listener;
+ scontainer->prereg_listener = vfio_prereg_listener;
- memory_listener_register(&container->prereg_listener,
+ memory_listener_register(&scontainer->prereg_listener,
&address_space_memory);
- if (container->error) {
+ if (bcontainer->error) {
ret = -1;
- error_propagate_prepend(errp, container->error,
+ error_propagate_prepend(errp, bcontainer->error,
"RAM memory listener initialization failed: ");
goto listener_unregister_exit;
}
@@ -461,7 +495,7 @@ int vfio_spapr_container_init(VFIOContainer *container, Error **errp)
}
if (v2) {
- container->pgsizes = info.ddw.pgsizes;
+ bcontainer->pgsizes = info.ddw.pgsizes;
/*
* There is a default window in just created container.
* To make region_add/del simpler, we better remove this
@@ -476,30 +510,34 @@ int vfio_spapr_container_init(VFIOContainer *container, Error **errp)
}
} else {
/* The default table uses 4K pages */
- container->pgsizes = 0x1000;
- vfio_host_win_add(container, info.dma32_window_start,
+ bcontainer->pgsizes = 0x1000;
+ vfio_host_win_add(scontainer, info.dma32_window_start,
info.dma32_window_start +
info.dma32_window_size - 1,
0x1000);
}
+ setup_spapr_ops(bcontainer);
+
return 0;
listener_unregister_exit:
if (v2) {
- memory_listener_unregister(&container->prereg_listener);
+ memory_listener_unregister(&scontainer->prereg_listener);
}
return ret;
}
void vfio_spapr_container_deinit(VFIOContainer *container)
{
+ VFIOSpaprContainer *scontainer = container_of(container, VFIOSpaprContainer,
+ container);
VFIOHostDMAWindow *hostwin, *next;
if (container->iommu_type == VFIO_SPAPR_TCE_v2_IOMMU) {
- memory_listener_unregister(&container->prereg_listener);
+ memory_listener_unregister(&scontainer->prereg_listener);
}
- QLIST_FOREACH_SAFE(hostwin, &container->hostwin_list, hostwin_next,
+ QLIST_FOREACH_SAFE(hostwin, &scontainer->hostwin_list, hostwin_next,
next) {
QLIST_REMOVE(hostwin, hostwin_next);
g_free(hostwin);
generated by cgit v1.2.3 (git 2.26.2) at 2025-03-22 19:14:23 +0000