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pci, pc, virtio: fixes

Browse Source 
intel-iommu fixes
 virtio typo fixes
 linker: a couple of asserts for consistency/security
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

pci, pc, virtio: fixes

intel-iommu fixes
virtio typo fixes
linker: a couple of asserts for consistency/security

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Tue 02 Apr 2019 16:51:19 BST
# gpg:                using RSA key 281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream:
  intel_iommu: Drop extended root field
  intel_iommu: Fix root_scalable migration breakage
  virtio-net: Fix typo in comment
  intel_iommu: Correct caching-mode error message
  acpi: verify file entries in bios_linker_loader_add_pointer()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2019-04-07 14:54:55 +01:00
commit f55a585d10
6 changed files with 27 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
hw/acpi/bios-linker-loader.c
View File

@ -283,6 +283,8 @@ void bios_linker_loader_add_pointer(BIOSLinker *linker,
const BiosLinkerFileEntry *source_file =
bios_linker_find_file(linker, src_file);
assert(dst_file);
assert(source_file);
assert(dst_patched_offset < dst_file->blob->len);
assert(dst_patched_offset + dst_patched_size <= dst_file->blob->len);
assert(src_offset < source_file->blob->len);

32
hw/i386/intel_iommu.c
View File

@ -162,6 +162,15 @@ static inline void vtd_iommu_unlock(IntelIOMMUState *s)
qemu_mutex_unlock(&s->iommu_lock);
}
static void vtd_update_scalable_state(IntelIOMMUState *s)
{
uint64_t val = vtd_get_quad_raw(s, DMAR_RTADDR_REG);
if (s->scalable_mode) {
s->root_scalable = val & VTD_RTADDR_SMT;
}
}
/* Whether the address space needs to notify new mappings */
static inline gboolean vtd_as_has_map_notifier(VTDAddressSpace *as)
{
@ -1709,13 +1718,11 @@ error:
static void vtd_root_table_setup(IntelIOMMUState *s)
{
s->root = vtd_get_quad_raw(s, DMAR_RTADDR_REG);
s->root_extended = s->root & VTD_RTADDR_RTT;
if (s->scalable_mode) {
s->root_scalable = s->root & VTD_RTADDR_SMT;
}
s->root &= VTD_RTADDR_ADDR_MASK(s->aw_bits);
trace_vtd_reg_dmar_root(s->root, s->root_extended);
vtd_update_scalable_state(s);
trace_vtd_reg_dmar_root(s->root, s->root_scalable);
}
static void vtd_iec_notify_all(IntelIOMMUState *s, bool global,
@ -2919,7 +2926,7 @@ static void vtd_iommu_notify_flag_changed(IOMMUMemoryRegion *iommu,
IntelIOMMUState *s = vtd_as->iommu_state;
if (!s->caching_mode && new & IOMMU_NOTIFIER_MAP) {
error_report("We need to set caching-mode=1 for intel-iommu to enable "
error_report("We need to set caching-mode=on for intel-iommu to enable "
"device assignment with IOMMU protection.");
exit(1);
}
@ -2945,6 +2952,15 @@ static int vtd_post_load(void *opaque, int version_id)
*/
vtd_switch_address_space_all(iommu);
/*
* We don't need to migrate the root_scalable because we can
* simply do the calculation after the loading is complete. We
* can actually do similar things with root, dmar_enabled, etc.
* however since we've had them already so we'd better keep them
* for compatibility of migration.
*/
vtd_update_scalable_state(iommu);
return 0;
}
@ -2965,8 +2981,7 @@ static const VMStateDescription vtd_vmstate = {
VMSTATE_UINT16(next_frcd_reg, IntelIOMMUState),
VMSTATE_UINT8_ARRAY(csr, IntelIOMMUState, DMAR_REG_SIZE),
VMSTATE_UINT8(iq_last_desc_type, IntelIOMMUState),
VMSTATE_BOOL(root_extended, IntelIOMMUState),
VMSTATE_BOOL(root_scalable, IntelIOMMUState),
VMSTATE_UNUSED(1), /* bool root_extended is obsolete by VT-d */
VMSTATE_BOOL(dmar_enabled, IntelIOMMUState),
VMSTATE_BOOL(qi_enabled, IntelIOMMUState),
VMSTATE_BOOL(intr_enabled, IntelIOMMUState),
@ -3487,7 +3502,6 @@ static void vtd_init(IntelIOMMUState *s)
memset(s->womask, 0, DMAR_REG_SIZE);
s->root = 0;
s->root_extended = false;
s->root_scalable = false;
s->dmar_enabled = false;
s->intr_enabled = false;

1
hw/i386/intel_iommu_internal.h
View File

@ -171,7 +171,6 @@
#define VTD_CCMD_FM(val) (((val) >> 32) & 3ULL)
/* RTADDR_REG */
#define VTD_RTADDR_RTT (1ULL << 11)
#define VTD_RTADDR_SMT (1ULL << 10)
#define VTD_RTADDR_ADDR_MASK(aw) (VTD_HAW_MASK(aw) ^ 0xfffULL)

2
hw/i386/trace-events
View File

@ -45,7 +45,7 @@ vtd_pt_enable_fast_path(uint16_t sid, bool success) "sid 0x%"PRIu16" %d"
vtd_irq_generate(uint64_t addr, uint64_t data) "addr 0x%"PRIx64" data 0x%"PRIx64
vtd_reg_read(uint64_t addr, uint64_t size) "addr 0x%"PRIx64" size 0x%"PRIx64
vtd_reg_write(uint64_t addr, uint64_t size, uint64_t val) "addr 0x%"PRIx64" size 0x%"PRIx64" value 0x%"PRIx64
vtd_reg_dmar_root(uint64_t addr, bool extended) "addr 0x%"PRIx64" extended %d"
vtd_reg_dmar_root(uint64_t addr, bool scalable) "addr 0x%"PRIx64" scalable %d"
vtd_reg_ir_root(uint64_t addr, uint32_t size) "addr 0x%"PRIx64" size 0x%"PRIx32
vtd_reg_write_gcmd(uint32_t status, uint32_t val) "status 0x%"PRIx32" value 0x%"PRIx32
vtd_reg_write_fectl(uint32_t value) "value 0x%"PRIx32

2
hw/net/virtio-net.c
View File

@ -2281,7 +2281,7 @@ static void virtio_net_change_num_queues(VirtIONet *n, int new_max_queues)
/*
* We always need to remove and add ctrl vq if
* old_num_queues != new_num_queues. Remove ctrl_vq first,
* and then we only enter one of the following too loops.
* and then we only enter one of the following two loops.
*/
virtio_del_queue(vdev, old_num_queues - 1);

1
include/hw/i386/intel_iommu.h
View File

@ -234,7 +234,6 @@ struct IntelIOMMUState {
bool scalable_mode; /* RO - is Scalable Mode supported? */
dma_addr_t root; /* Current root table pointer */
bool root_extended; /* Type of root table (extended or not) */
bool root_scalable; /* Type of root table (scalable or not) */
bool dmar_enabled; /* Set if DMA remapping is enabled */