mirror of https://github.com/proxmox/mirror_qemu
intel_iommu: support device iotlb descriptor
This patch enables device IOTLB support for intel iommu. The major work is to implement QI device IOTLB descriptor processing and notify the device through iommu notifier. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com>master
parent
052c8fa998
commit
554f5e1604
|
@ -738,11 +738,18 @@ static int vtd_dev_to_context_entry(IntelIOMMUState *s, uint8_t bus_num,
|
||||||
"context-entry hi 0x%"PRIx64 " lo 0x%"PRIx64,
|
"context-entry hi 0x%"PRIx64 " lo 0x%"PRIx64,
|
||||||
ce->hi, ce->lo);
|
ce->hi, ce->lo);
|
||||||
return -VTD_FR_CONTEXT_ENTRY_INV;
|
return -VTD_FR_CONTEXT_ENTRY_INV;
|
||||||
} else if (ce->lo & VTD_CONTEXT_ENTRY_TT) {
|
} else {
|
||||||
VTD_DPRINTF(GENERAL, "error: unsupported Translation Type in "
|
switch (ce->lo & VTD_CONTEXT_ENTRY_TT) {
|
||||||
"context-entry hi 0x%"PRIx64 " lo 0x%"PRIx64,
|
case VTD_CONTEXT_TT_MULTI_LEVEL:
|
||||||
ce->hi, ce->lo);
|
/* fall through */
|
||||||
return -VTD_FR_CONTEXT_ENTRY_INV;
|
case VTD_CONTEXT_TT_DEV_IOTLB:
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
VTD_DPRINTF(GENERAL, "error: unsupported Translation Type in "
|
||||||
|
"context-entry hi 0x%"PRIx64 " lo 0x%"PRIx64,
|
||||||
|
ce->hi, ce->lo);
|
||||||
|
return -VTD_FR_CONTEXT_ENTRY_INV;
|
||||||
|
}
|
||||||
}
|
}
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
@ -1438,7 +1445,61 @@ static bool vtd_process_inv_iec_desc(IntelIOMMUState *s,
|
||||||
vtd_iec_notify_all(s, !inv_desc->iec.granularity,
|
vtd_iec_notify_all(s, !inv_desc->iec.granularity,
|
||||||
inv_desc->iec.index,
|
inv_desc->iec.index,
|
||||||
inv_desc->iec.index_mask);
|
inv_desc->iec.index_mask);
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
static bool vtd_process_device_iotlb_desc(IntelIOMMUState *s,
|
||||||
|
VTDInvDesc *inv_desc)
|
||||||
|
{
|
||||||
|
VTDAddressSpace *vtd_dev_as;
|
||||||
|
IOMMUTLBEntry entry;
|
||||||
|
struct VTDBus *vtd_bus;
|
||||||
|
hwaddr addr;
|
||||||
|
uint64_t sz;
|
||||||
|
uint16_t sid;
|
||||||
|
uint8_t devfn;
|
||||||
|
bool size;
|
||||||
|
uint8_t bus_num;
|
||||||
|
|
||||||
|
addr = VTD_INV_DESC_DEVICE_IOTLB_ADDR(inv_desc->hi);
|
||||||
|
sid = VTD_INV_DESC_DEVICE_IOTLB_SID(inv_desc->lo);
|
||||||
|
devfn = sid & 0xff;
|
||||||
|
bus_num = sid >> 8;
|
||||||
|
size = VTD_INV_DESC_DEVICE_IOTLB_SIZE(inv_desc->hi);
|
||||||
|
|
||||||
|
if ((inv_desc->lo & VTD_INV_DESC_DEVICE_IOTLB_RSVD_LO) ||
|
||||||
|
(inv_desc->hi & VTD_INV_DESC_DEVICE_IOTLB_RSVD_HI)) {
|
||||||
|
VTD_DPRINTF(GENERAL, "error: non-zero reserved field in Device "
|
||||||
|
"IOTLB Invalidate Descriptor hi 0x%"PRIx64 " lo 0x%"PRIx64,
|
||||||
|
inv_desc->hi, inv_desc->lo);
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
vtd_bus = vtd_find_as_from_bus_num(s, bus_num);
|
||||||
|
if (!vtd_bus) {
|
||||||
|
goto done;
|
||||||
|
}
|
||||||
|
|
||||||
|
vtd_dev_as = vtd_bus->dev_as[devfn];
|
||||||
|
if (!vtd_dev_as) {
|
||||||
|
goto done;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (size) {
|
||||||
|
sz = 1 << (ctz64(~(addr | (VTD_PAGE_MASK_4K - 1))) + 1);
|
||||||
|
addr &= ~(sz - 1);
|
||||||
|
} else {
|
||||||
|
sz = VTD_PAGE_SIZE;
|
||||||
|
}
|
||||||
|
|
||||||
|
entry.target_as = &vtd_dev_as->as;
|
||||||
|
entry.addr_mask = sz - 1;
|
||||||
|
entry.iova = addr;
|
||||||
|
entry.perm = IOMMU_NONE;
|
||||||
|
entry.translated_addr = 0;
|
||||||
|
memory_region_notify_iommu(entry.target_as->root, entry);
|
||||||
|
|
||||||
|
done:
|
||||||
return true;
|
return true;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -1490,6 +1551,14 @@ static bool vtd_process_inv_desc(IntelIOMMUState *s)
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
|
|
||||||
|
case VTD_INV_DESC_DEVICE:
|
||||||
|
VTD_DPRINTF(INV, "Device IOTLB Invalidation Descriptor hi 0x%"PRIx64
|
||||||
|
" lo 0x%"PRIx64, inv_desc.hi, inv_desc.lo);
|
||||||
|
if (!vtd_process_device_iotlb_desc(s, &inv_desc)) {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
|
||||||
default:
|
default:
|
||||||
VTD_DPRINTF(GENERAL, "error: unkonw Invalidation Descriptor type "
|
VTD_DPRINTF(GENERAL, "error: unkonw Invalidation Descriptor type "
|
||||||
"hi 0x%"PRIx64 " lo 0x%"PRIx64 " type %"PRIu8,
|
"hi 0x%"PRIx64 " lo 0x%"PRIx64 " type %"PRIu8,
|
||||||
|
@ -2415,6 +2484,10 @@ static void vtd_init(IntelIOMMUState *s)
|
||||||
assert(s->intr_eim != ON_OFF_AUTO_AUTO);
|
assert(s->intr_eim != ON_OFF_AUTO_AUTO);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
if (x86_iommu->dt_supported) {
|
||||||
|
s->ecap |= VTD_ECAP_DT;
|
||||||
|
}
|
||||||
|
|
||||||
vtd_reset_context_cache(s);
|
vtd_reset_context_cache(s);
|
||||||
vtd_reset_iotlb(s);
|
vtd_reset_iotlb(s);
|
||||||
|
|
||||||
|
|
|
@ -183,6 +183,7 @@
|
||||||
/* (offset >> 4) << 8 */
|
/* (offset >> 4) << 8 */
|
||||||
#define VTD_ECAP_IRO (DMAR_IOTLB_REG_OFFSET << 4)
|
#define VTD_ECAP_IRO (DMAR_IOTLB_REG_OFFSET << 4)
|
||||||
#define VTD_ECAP_QI (1ULL << 1)
|
#define VTD_ECAP_QI (1ULL << 1)
|
||||||
|
#define VTD_ECAP_DT (1ULL << 2)
|
||||||
/* Interrupt Remapping support */
|
/* Interrupt Remapping support */
|
||||||
#define VTD_ECAP_IR (1ULL << 3)
|
#define VTD_ECAP_IR (1ULL << 3)
|
||||||
#define VTD_ECAP_EIM (1ULL << 4)
|
#define VTD_ECAP_EIM (1ULL << 4)
|
||||||
|
@ -326,6 +327,7 @@ typedef union VTDInvDesc VTDInvDesc;
|
||||||
#define VTD_INV_DESC_TYPE 0xf
|
#define VTD_INV_DESC_TYPE 0xf
|
||||||
#define VTD_INV_DESC_CC 0x1 /* Context-cache Invalidate Desc */
|
#define VTD_INV_DESC_CC 0x1 /* Context-cache Invalidate Desc */
|
||||||
#define VTD_INV_DESC_IOTLB 0x2
|
#define VTD_INV_DESC_IOTLB 0x2
|
||||||
|
#define VTD_INV_DESC_DEVICE 0x3
|
||||||
#define VTD_INV_DESC_IEC 0x4 /* Interrupt Entry Cache
|
#define VTD_INV_DESC_IEC 0x4 /* Interrupt Entry Cache
|
||||||
Invalidate Descriptor */
|
Invalidate Descriptor */
|
||||||
#define VTD_INV_DESC_WAIT 0x5 /* Invalidation Wait Descriptor */
|
#define VTD_INV_DESC_WAIT 0x5 /* Invalidation Wait Descriptor */
|
||||||
|
@ -361,6 +363,13 @@ typedef union VTDInvDesc VTDInvDesc;
|
||||||
#define VTD_INV_DESC_IOTLB_RSVD_LO 0xffffffff0000ff00ULL
|
#define VTD_INV_DESC_IOTLB_RSVD_LO 0xffffffff0000ff00ULL
|
||||||
#define VTD_INV_DESC_IOTLB_RSVD_HI 0xf80ULL
|
#define VTD_INV_DESC_IOTLB_RSVD_HI 0xf80ULL
|
||||||
|
|
||||||
|
/* Mask for Device IOTLB Invalidate Descriptor */
|
||||||
|
#define VTD_INV_DESC_DEVICE_IOTLB_ADDR(val) ((val) & 0xfffffffffffff000ULL)
|
||||||
|
#define VTD_INV_DESC_DEVICE_IOTLB_SIZE(val) ((val) & 0x1)
|
||||||
|
#define VTD_INV_DESC_DEVICE_IOTLB_SID(val) (((val) >> 32) & 0xFFFFULL)
|
||||||
|
#define VTD_INV_DESC_DEVICE_IOTLB_RSVD_HI 0xffeULL
|
||||||
|
#define VTD_INV_DESC_DEVICE_IOTLB_RSVD_LO 0xffff0000ffe0fff8
|
||||||
|
|
||||||
/* Information about page-selective IOTLB invalidate */
|
/* Information about page-selective IOTLB invalidate */
|
||||||
struct VTDIOTLBPageInvInfo {
|
struct VTDIOTLBPageInvInfo {
|
||||||
uint16_t domain_id;
|
uint16_t domain_id;
|
||||||
|
@ -399,8 +408,8 @@ typedef struct VTDRootEntry VTDRootEntry;
|
||||||
#define VTD_CONTEXT_ENTRY_FPD (1ULL << 1) /* Fault Processing Disable */
|
#define VTD_CONTEXT_ENTRY_FPD (1ULL << 1) /* Fault Processing Disable */
|
||||||
#define VTD_CONTEXT_ENTRY_TT (3ULL << 2) /* Translation Type */
|
#define VTD_CONTEXT_ENTRY_TT (3ULL << 2) /* Translation Type */
|
||||||
#define VTD_CONTEXT_TT_MULTI_LEVEL 0
|
#define VTD_CONTEXT_TT_MULTI_LEVEL 0
|
||||||
#define VTD_CONTEXT_TT_DEV_IOTLB 1
|
#define VTD_CONTEXT_TT_DEV_IOTLB (1ULL << 2)
|
||||||
#define VTD_CONTEXT_TT_PASS_THROUGH 2
|
#define VTD_CONTEXT_TT_PASS_THROUGH (2ULL << 2)
|
||||||
/* Second Level Page Translation Pointer*/
|
/* Second Level Page Translation Pointer*/
|
||||||
#define VTD_CONTEXT_ENTRY_SLPTPTR (~0xfffULL)
|
#define VTD_CONTEXT_ENTRY_SLPTPTR (~0xfffULL)
|
||||||
#define VTD_CONTEXT_ENTRY_RSVD_LO (0xff0ULL | ~VTD_HAW_MASK)
|
#define VTD_CONTEXT_ENTRY_RSVD_LO (0xff0ULL | ~VTD_HAW_MASK)
|
||||||
|
|
|
@ -106,6 +106,18 @@ static void x86_iommu_intremap_prop_set(Object *o, bool value, Error **errp)
|
||||||
s->intr_supported = value;
|
s->intr_supported = value;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static bool x86_iommu_device_iotlb_prop_get(Object *o, Error **errp)
|
||||||
|
{
|
||||||
|
X86IOMMUState *s = X86_IOMMU_DEVICE(o);
|
||||||
|
return s->dt_supported;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void x86_iommu_device_iotlb_prop_set(Object *o, bool value, Error **errp)
|
||||||
|
{
|
||||||
|
X86IOMMUState *s = X86_IOMMU_DEVICE(o);
|
||||||
|
s->dt_supported = value;
|
||||||
|
}
|
||||||
|
|
||||||
static void x86_iommu_instance_init(Object *o)
|
static void x86_iommu_instance_init(Object *o)
|
||||||
{
|
{
|
||||||
X86IOMMUState *s = X86_IOMMU_DEVICE(o);
|
X86IOMMUState *s = X86_IOMMU_DEVICE(o);
|
||||||
|
@ -114,6 +126,11 @@ static void x86_iommu_instance_init(Object *o)
|
||||||
s->intr_supported = false;
|
s->intr_supported = false;
|
||||||
object_property_add_bool(o, "intremap", x86_iommu_intremap_prop_get,
|
object_property_add_bool(o, "intremap", x86_iommu_intremap_prop_get,
|
||||||
x86_iommu_intremap_prop_set, NULL);
|
x86_iommu_intremap_prop_set, NULL);
|
||||||
|
s->dt_supported = false;
|
||||||
|
object_property_add_bool(o, "device-iotlb",
|
||||||
|
x86_iommu_device_iotlb_prop_get,
|
||||||
|
x86_iommu_device_iotlb_prop_set,
|
||||||
|
NULL);
|
||||||
}
|
}
|
||||||
|
|
||||||
static const TypeInfo x86_iommu_info = {
|
static const TypeInfo x86_iommu_info = {
|
||||||
|
|
|
@ -73,6 +73,7 @@ typedef struct IEC_Notifier IEC_Notifier;
|
||||||
struct X86IOMMUState {
|
struct X86IOMMUState {
|
||||||
SysBusDevice busdev;
|
SysBusDevice busdev;
|
||||||
bool intr_supported; /* Whether vIOMMU supports IR */
|
bool intr_supported; /* Whether vIOMMU supports IR */
|
||||||
|
bool dt_supported; /* Whether vIOMMU supports DT */
|
||||||
IommuType type; /* IOMMU type - AMD/Intel */
|
IommuType type; /* IOMMU type - AMD/Intel */
|
||||||
QLIST_HEAD(, IEC_Notifier) iec_notifiers; /* IEC notify list */
|
QLIST_HEAD(, IEC_Notifier) iec_notifiers; /* IEC notify list */
|
||||||
};
|
};
|
||||||
|
|
Loading…
Reference in New Issue