Since evicting inodes triggers writes to the backing file, which uses
the mi_owner field from the mount_info struct, make sure inodes are
evicted before we free the mount_info data
Test: incfs_test
Bug: 270117845
Change-Id: I673b2e0e04b5adc3998caf6f22443598a30338af
Signed-off-by: Paul Lawrence <paullawrence@google.com>
(cherry picked from commit 7899985277)
If the filesystem being watched supports d_canonical_path,
notify the lower filesystem of the open as well.
Fixes: f37e05049b ("ANDROID: vfs: d_canonical_path for stacked FS")
Test: atest CtsOsTestCases:android.os.cts.FileObserverTest
Bug: 70706497
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Signed-off-by: Alessio Balsini <balsini@google.com>
Change-Id: I7c9d210e8e6ee99928ad9db0b41ffc3ac3371dc0
(cherry picked from commit b289d1706b)
To avoid a BUG_ON, we must disable migration before running any bpf
program.
Bug: 273620140
Test: fuse-test passes, no bug with CONFIG_DEBUG_ATOMIC_SLEEP
Change-Id: I9ed69ae93fc4b922782fccde293cb02b3eae3f06
Signed-off-by: Paul Lawrence <paullawrence@google.com>
(cherry picked from commit 0411f8d9df)
If a lookup finds an existing inode, it must not change the existing bpf
program since it may be in use.
Bug: 267095363
Test: fuse_test, atest CtsScopedStorageHostTest
Change-Id: Icb00681fbcd51fdd4b0764906509093d98caeec4
Signed-off-by: Paul Lawrence <paullawrence@google.com>
(cherry picked from commit 14a5cd6ae3)
_aarch64_additional_kmi_symbol_list has all vendor's kmi symbol list file,
but it is inaccessible from outside. Added a filegroup for it.
Bug: 275670969
Signed-off-by: Junki Min <joonki.min@samsung.com>
Change-Id: I65ad4008ae2135fae88c8eaf1c09d141ea562294
This was meant to be a u32, and while applying the patch
I tried to use policy validation for it. However, not only
did I copy/paste it to u8 instead of u32, but also used
the policy range erroneously. Fix both of these issues.
Fixes: d7c1a9a0ed ("wifi: nl80211: validate and configure puncturing bitmap")
Signed-offi-by: Johannes Berg <johannes.berg@intel.com>
Bug: 276824951
Change-Id: I1c91e034845615d15f9b1004c7bef16dd3eb5d2c
(cherry picked from commit b27f07c50a)
Signed-off-by: Shivani Baranwal <quic_shivbara@quicinc.com>
Following ML discussion, it seems very much likely the non-consuming
upstream version for hyp tracing ("trace" files) will be delayed.
As we want to stick to upstream as much as possible for the next Android
releases, let's remove this interface, not used by our tools before
anyone relies on it.
Bug: 249050813
Link: https://lore.kernel.org/linux-trace-kernel/20230329070353.1e1b443b@gandalf.local.home/
Change-Id: I64b032512b85ed095bb402dc2997101777cb539b
Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
This reverts commit d723168991.
The hook it added:
android_rvh_cpufreq_transition
is not used by anyone, so remove it. If it is needed in the future it
can be submitted for review again.
Bug: 181889516
Cc: Pavankumar Kondeti <quic_pkondeti@quicinc.com>
Change-Id: I770ef330c0e1e6095b74c0a22845f20b4b71fd70
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This reverts commit 1abc68878a.
The hooks added in that commit:
android_rvh_commit_creds
android_rvh_exit_creds
android_rvh_override_creds
android_rvh_revert_creds
are not used by anyone, so remove them.
If they are needed in the future, they can be resubmitted for review.
Bug: 181639260
Cc: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Change-Id: I1b371d6b0be827e39c5163e2ed2134307d81730a
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This reverts commit c2b6e1a440.
It breaks the current Android kernel abi. It will be brought back at
the next KABI break update.
Bug: 161946584
Change-Id: I0e5a012f184f4d1a8ca158e45fe4a3e4f20050db
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Changes in 6.1.22
interconnect: qcom: osm-l3: fix icc_onecell_data allocation
interconnect: qcom: sm8450: switch to qcom_icc_rpmh_* function
interconnect: qcom: qcm2290: Fix MASTER_SNOC_BIMC_NRT
perf/core: Fix perf_output_begin parameter is incorrectly invoked in perf_event_bpf_output
perf: fix perf_event_context->time
tracing/hwlat: Replace sched_setaffinity with set_cpus_allowed_ptr
drm/amd/display: Include virtual signal to set k1 and k2 values
drm/amd/display: fix k1 k2 divider programming for phantom streams
drm/amd/display: Remove OTG DIV register write for Virtual signals.
mptcp: refactor passive socket initialization
mptcp: use the workqueue to destroy unaccepted sockets
mptcp: fix UaF in listener shutdown
drm/amd/display: Fix DP MST sinks removal issue
arm64: dts: qcom: sm8450: Mark UFS controller as cache coherent
power: supply: bq24190: Fix use after free bug in bq24190_remove due to race condition
power: supply: da9150: Fix use after free bug in da9150_charger_remove due to race condition
arm64: dts: imx8dxl-evk: Disable hibernation mode of AR8031 for EQOS
arm64: dts: imx8dxl-evk: Fix eqos phy reset gpio
ARM: dts: imx6sll: e70k02: fix usbotg1 pinctrl
ARM: dts: imx6sll: e60k02: fix usbotg1 pinctrl
ARM: dts: imx6sl: tolino-shine2hd: fix usbotg1 pinctrl
arm64: dts: imx8mn: specify #sound-dai-cells for SAI nodes
arm64: dts: imx93: add missing #address-cells and #size-cells to i2c nodes
NFS: Fix /proc/PID/io read_bytes for buffered reads
xsk: Add missing overflow check in xdp_umem_reg
iavf: fix inverted Rx hash condition leading to disabled hash
iavf: fix non-tunneled IPv6 UDP packet type and hashing
iavf: do not track VLAN 0 filters
intel/igbvf: free irq on the error path in igbvf_request_msix()
igbvf: Regard vf reset nack as success
igc: fix the validation logic for taprio's gate list
i2c: imx-lpi2c: check only for enabled interrupt flags
i2c: mxs: ensure that DMA buffers are safe for DMA
i2c: hisi: Only use the completion interrupt to finish the transfer
scsi: scsi_dh_alua: Fix memleak for 'qdata' in alua_activate()
nfsd: don't replace page in rq_pages if it's a continuation of last page
net: dsa: b53: mmap: fix device tree support
net: usb: smsc95xx: Limit packet length to skb->len
efi/libstub: smbios: Use length member instead of record struct size
qed/qed_sriov: guard against NULL derefs from qed_iov_get_vf_info
xirc2ps_cs: Fix use after free bug in xirc2ps_detach
net: phy: Ensure state transitions are processed from phy_stop()
net: mdio: fix owner field for mdio buses registered using device-tree
net: mdio: fix owner field for mdio buses registered using ACPI
net: stmmac: Fix for mismatched host/device DMA address width
thermal/drivers/mellanox: Use generic thermal_zone_get_trip() function
mlxsw: core_thermal: Fix fan speed in maximum cooling state
drm/i915: Print return value on error
drm/i915/fbdev: lock the fbdev obj before vma pin
drm/i915/guc: Rename GuC register state capture node to be more obvious
drm/i915/guc: Fix missing ecodes
drm/i915/gt: perform uc late init after probe error injection
net: qcom/emac: Fix use after free bug in emac_remove due to race condition
net: usb: lan78xx: Limit packet length to skb->len
net/ps3_gelic_net: Fix RX sk_buff length
net/ps3_gelic_net: Use dma_mapping_error
octeontx2-vf: Add missing free for alloc_percpu
bootconfig: Fix testcase to increase max node
keys: Do not cache key in task struct if key is requested from kernel thread
ice: check if VF exists before mode check
iavf: fix hang on reboot with ice
i40e: fix flow director packet filter programming
bpf: Adjust insufficient default bpf_jit_limit
net/mlx5e: Set uplink rep as NETNS_LOCAL
net/mlx5e: Block entering switchdev mode with ns inconsistency
net/mlx5: Fix steering rules cleanup
net/mlx5e: Overcome slow response for first macsec ASO WQE
net/mlx5: Read the TC mapping of all priorities on ETS query
net/mlx5: E-Switch, Fix an Oops in error handling code
net: dsa: tag_brcm: legacy: fix daisy-chained switches
atm: idt77252: fix kmemleak when rmmod idt77252
erspan: do not use skb_mac_header() in ndo_start_xmit()
net/sonic: use dma_mapping_error() for error check
nvme-tcp: fix nvme_tcp_term_pdu to match spec
mlxsw: spectrum_fid: Fix incorrect local port type
hvc/xen: prevent concurrent accesses to the shared ring
ksmbd: add low bound validation to FSCTL_SET_ZERO_DATA
ksmbd: add low bound validation to FSCTL_QUERY_ALLOCATED_RANGES
ksmbd: fix possible refcount leak in smb2_open()
Bluetooth: hci_sync: Resume adv with no RPA when active scan
Bluetooth: hci_core: Detect if an ACL packet is in fact an ISO packet
Bluetooth: btusb: Remove detection of ISO packets over bulk
Bluetooth: ISO: fix timestamped HCI ISO data packet parsing
Bluetooth: Remove "Power-on" check from Mesh feature
gve: Cache link_speed value from device
net: asix: fix modprobe "sysfs: cannot create duplicate filename"
net: dsa: mt7530: move enabling disabling core clock to mt7530_pll_setup()
net: dsa: mt7530: move lowering TRGMII driving to mt7530_setup()
net: dsa: mt7530: move setting ssc_delta to PHY_INTERFACE_MODE_TRGMII case
net: mdio: thunder: Add missing fwnode_handle_put()
drm/amd/display: Set dcn32 caps.seamless_odm
Bluetooth: btqcomsmd: Fix command timeout after setting BD address
Bluetooth: L2CAP: Fix responding with wrong PDU type
Bluetooth: btsdio: fix use after free bug in btsdio_remove due to unfinished work
Bluetooth: mgmt: Fix MGMT add advmon with RSSI command
Bluetooth: HCI: Fix global-out-of-bounds
platform/chrome: cros_ec_chardev: fix kernel data leak from ioctl
entry: Fix noinstr warning in __enter_from_user_mode()
perf/x86/amd/core: Always clear status for idx
entry/rcu: Check TIF_RESCHED _after_ delayed RCU wake-up
hwmon: fix potential sensor registration fail if of_node is missing
hwmon (it87): Fix voltage scaling for chips with 10.9mV ADCs
scsi: qla2xxx: Synchronize the IOCB count to be in order
scsi: qla2xxx: Perform lockless command completion in abort path
smb3: lower default deferred close timeout to address perf regression
smb3: fix unusable share after force unmount failure
uas: Add US_FL_NO_REPORT_OPCODES for JMicron JMS583Gen 2
thunderbolt: Use scale field when allocating USB3 bandwidth
thunderbolt: Call tb_check_quirks() after initializing adapters
thunderbolt: Add quirk to disable CLx
thunderbolt: Fix memory leak in margining
thunderbolt: Disable interrupt auto clear for rings
thunderbolt: Add missing UNSET_INBOUND_SBTX for retimer access
thunderbolt: Use const qualifier for `ring_interrupt_index`
thunderbolt: Rename shadowed variables bit to interrupt_bit and auto_clear_bit
ASoC: amd: yp: Add OMEN by HP Gaming Laptop 16z-n000 to quirks
ASoC: amd: yc: Add DMI entries to support HP OMEN 16-n0xxx (8A43)
ACPI: x86: Drop quirk for HP Elitebook
ACPI: x86: utils: Add Cezanne to the list for forcing StorageD3Enable
riscv: Bump COMMAND_LINE_SIZE value to 1024
drm/cirrus: NULL-check pipe->plane.state->fb in cirrus_pipe_update()
HID: cp2112: Fix driver not registering GPIO IRQ chip as threaded
ca8210: fix mac_len negative array access
HID: logitech-hidpp: Add support for Logitech MX Master 3S mouse
HID: intel-ish-hid: ipc: Fix potential use-after-free in work function
m68k: mm: Fix systems with memory at end of 32-bit address space
m68k: Only force 030 bus error if PC not in exception table
selftests/bpf: check that modifier resolves after pointer
scsi: target: iscsi: Fix an error message in iscsi_check_key()
scsi: qla2xxx: Add option to disable FC2 Target support
scsi: hisi_sas: Check devm_add_action() return value
scsi: ufs: core: Add soft dependency on governor_simpleondemand
scsi: lpfc: Check kzalloc() in lpfc_sli4_cgn_params_read()
scsi: lpfc: Avoid usage of list iterator variable after loop
scsi: mpi3mr: Driver unload crashes host when enhanced logging is enabled
scsi: mpi3mr: Wait for diagnostic save during controller init
scsi: mpi3mr: NVMe command size greater than 8K fails
scsi: mpi3mr: Bad drive in topology results kernel crash
scsi: storvsc: Handle BlockSize change in Hyper-V VHD/VHDX file
platform/x86: int3472: Add GPIOs to Surface Go 3 Board data
net: usb: cdc_mbim: avoid altsetting toggling for Telit FE990
net: usb: qmi_wwan: add Telit 0x1080 composition
drm/amd/display: Update clock table to include highest clock setting
sh: sanitize the flags on sigreturn
drm/amdgpu: Fix call trace warning and hang when removing amdgpu device
drm/amd: Fix initialization mistake for NBIO 7.3.0
net/sched: act_mirred: better wording on protection against excessive stack growth
act_mirred: use the backlog for nested calls to mirred ingress
cifs: lock chan_lock outside match_session
cifs: append path to open_enter trace event
cifs: do not poll server interfaces too regularly
cifs: empty interface list when server doesn't support query interfaces
cifs: dump pending mids for all channels in DebugData
cifs: print session id while listing open files
cifs: fix dentry lookups in directory handle cache
x86/fpu/xstate: Prevent false-positive warning in __copy_xstate_uabi_buf()
selftests/x86/amx: Add a ptrace test
scsi: core: Add BLIST_SKIP_VPD_PAGES for SKhynix H28U74301AMR
usb: misc: onboard-hub: add support for Microchip USB2517 USB 2.0 hub
usb: dwc2: drd: fix inconsistent mode if role-switch-default-mode="host"
usb: dwc2: fix a devres leak in hw_enable upon suspend resume
usb: gadget: u_audio: don't let userspace block driver unbind
btrfs: zoned: fix btrfs_can_activate_zone() to support DUP profile
Bluetooth: Fix race condition in hci_cmd_sync_clear
efi: sysfb_efi: Fix DMI quirks not working for simpledrm
mm/slab: Fix undefined init_cache_node_node() for NUMA and !SMP
fscrypt: destroy keyring after security_sb_delete()
fsverity: Remove WQ_UNBOUND from fsverity read workqueue
lockd: set file_lock start and end when decoding nlm4 testargs
arm64: dts: imx8mm-nitrogen-r2: fix WM8960 clock name
igb: revert rtnl_lock() that causes deadlock
dm thin: fix deadlock when swapping to thin device
usb: typec: tcpm: fix create duplicate source-capabilities file
usb: typec: tcpm: fix warning when handle discover_identity message
usb: cdns3: Fix issue with using incorrect PCI device function
usb: cdnsp: Fixes issue with redundant Status Stage
usb: cdnsp: changes PCI Device ID to fix conflict with CNDS3 driver
usb: chipdea: core: fix return -EINVAL if request role is the same with current role
usb: chipidea: core: fix possible concurrent when switch role
usb: dwc3: gadget: Add 1ms delay after end transfer command without IOC
usb: ucsi: Fix NULL pointer deref in ucsi_connector_change()
usb: ucsi_acpi: Increase the command completion timeout
mm: kfence: fix using kfence_metadata without initialization in show_object()
kfence: avoid passing -g for test
io_uring/net: avoid sending -ECONNABORTED on repeated connection requests
io_uring/rsrc: fix null-ptr-deref in io_file_bitmap_get()
Revert "kasan: drop skip_kasan_poison variable in free_pages_prepare"
test_maple_tree: add more testing for mas_empty_area()
maple_tree: fix mas_skip_node() end slot detection
ksmbd: fix wrong signingkey creation when encryption is AES256
ksmbd: set FILE_NAMED_STREAMS attribute in FS_ATTRIBUTE_INFORMATION
ksmbd: don't terminate inactive sessions after a few seconds
ksmbd: return STATUS_NOT_SUPPORTED on unsupported smb2.0 dialect
ksmbd: return unsupported error on smb1 mount
wifi: mac80211: fix qos on mesh interfaces
nilfs2: fix kernel-infoleak in nilfs_ioctl_wrap_copy()
drm/bridge: lt8912b: return EPROBE_DEFER if bridge is not found
drm/amd/display: fix wrong index used in dccg32_set_dpstreamclk
drm/meson: fix missing component unbind on bind errors
drm/amdgpu/nv: Apply ASPM quirk on Intel ADL + AMD Navi
drm/i915/active: Fix missing debug object activation
drm/i915: Preserve crtc_state->inherited during state clearing
drm/amdgpu: skip ASIC reset for APUs when go to S4
drm/amdgpu: reposition the gpu reset checking for reuse
riscv: mm: Fix incorrect ASID argument when flushing TLB
riscv: Handle zicsr/zifencei issues between clang and binutils
tee: amdtee: fix race condition in amdtee_open_session
firmware: arm_scmi: Fix device node validation for mailbox transport
arm64: dts: qcom: sc7280: Mark PCIe controller as cache coherent
arm64: dts: qcom: sm8150: Fix the iommu mask used for PCIe controllers
soc: qcom: llcc: Fix slice configuration values for SC8280XP
mm/ksm: fix race with VMA iteration and mm_struct teardown
bus: imx-weim: fix branch condition evaluates to a garbage value
i2c: xgene-slimpro: Fix out-of-bounds bug in xgene_slimpro_i2c_xfer()
dm stats: check for and propagate alloc_percpu failure
dm crypt: add cond_resched() to dmcrypt_write()
dm crypt: avoid accessing uninitialized tasklet
sched/fair: sanitize vruntime of entity being placed
sched/fair: Sanitize vruntime of entity being migrated
drm/amdkfd: introduce dummy cache info for property asic
drm/amdkfd: Fix the warning of array-index-out-of-bounds
drm/amdkfd: add GC 11.0.4 KFD support
drm/amdkfd: Fix the memory overrun
Linux 6.1.22
Change-Id: Id13b4655dbfb59c29a0b8953e5e0cda3703f1879
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Add support for setting the protected VM firmware load location. This
change requires lent memory support, which will land in future kernel as
restricted_memfd. Until then, it is in Android Common Kernel following
the GH_VM_ANDROID_LEND_USER_MEMORY patches.
Bug: 268234781
Change-Id: I1d1385ee6d4018d7a6e82868bf115b9bd6c785ca
Co-developed-by: Elliot Berman <quic_eberman@quicinc.com>
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Signed-off-by: Sreenad Menon <quic_sreemeno@quicinc.com>
Add support for lending memory via GH_VM_ANDROID_LEND_USER_MEM. Lending
memory makes it inaccessible to the host.
pKVM and Gunyah aim to converge to a common design based around
restricted_memfd in kernel.org, but the base restricted_memfd support is
not available yet. So, carry the support to lend memory as an Android
patch.
Bug: 268234781
Change-Id: Iecef11891f40efe4a3df7585808d6fe28a14ab39
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Make gunyah core driver a built in module to allow Gunyah vendor modules
to be a part of first stage ramdisk.
Bug: 268234781
Change-Id: I5b442baabb720362c7be7727d138ef8d9850bfbc
Signed-off-by: Prakruthi Deepak Heragu <quic_pheragu@quicinc.com>
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Add support for further vendor features of Gunyah. To probe the vendor
features, add auxiliary device and export gh_rm_call to all the vendor
features to make not-yet-upstreamed RM RPC calls.
Bug: 268234781
Change-Id: I13de37b7c0d5d6c85bdd32a20c39fdde99cffbdd
Signed-off-by: Prakruthi Deepak Heragu <quic_pheragu@quicinc.com>
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Enable support for creating irqfds which can raise an interrupt on a
Gunyah virtual machine. irqfds are exposed to userspace as a Gunyah VM
function with the name "irqfd". If the VM devicetree is not configured
to create a doorbell with the corresponding label, userspace will still
be able to assert the eventfd but no interrupt will be raised on the
guest.
Co-developed-by: Prakruthi Deepak Heragu <quic_pheragu@quicinc.com>
Change-Id: Ia3a08edfa77f10519c56be9e332f79f08cd89d57
Signed-off-by: Prakruthi Deepak Heragu <quic_pheragu@quicinc.com>
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Bug: 268234781
Link: https://lore.kernel.org/all/20230304010632.2127470-25-quic_eberman@quicinc.com/
Gunyah allows host virtual machines to schedule guest virtual machines
and handle their MMIO accesses. vCPUs are presented to the host as a
Gunyah resource and represented to userspace as a Gunyah VM function.
Creating the vcpu VM function will create a file descriptor that:
- can run an ioctl: GH_VCPU_RUN to schedule the guest vCPU until the
next interrupt occurs on the host or when the guest vCPU can no
longer be run.
- can be mmap'd to share a gh_vcpu_run structure which can look up the
reason why GH_VCPU_RUN returned and provide return values for MMIO
access.
Co-developed-by: Prakruthi Deepak Heragu <quic_pheragu@quicinc.com>
Change-Id: I8939bdfa61a9836a5a61c6616818c1eb2078c0f1
Signed-off-by: Prakruthi Deepak Heragu <quic_pheragu@quicinc.com>
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Bug: 268234781
Link: https://lore.kernel.org/all/20230304010632.2127470-23-quic_eberman@quicinc.com/
Some VM functions need to acquire Gunyah resources. For instance, Gunyah
vCPUs are exposed to the host as a resource. The Gunyah vCPU function
will register a resource ticket and be able to interact with the
hypervisor once the resource ticket is filled.
Resource tickets are the mechanism for functions to acquire ownership of
Gunyah resources. Gunyah functions can be created before the VM's
resources are created and made available to Linux. A resource ticket
identifies a type of resource and a label of a resource which the ticket
holder is interested in.
Resources are created by Gunyah as configured in the VM's devicetree
configuration. Gunyah doesn't process the label and that makes it
possible for userspace to create multiple resources with the same label.
Resource ticket owners need to be prepared for populate to be called
multiple times if userspace created multiple resources with the same
label.
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Change-Id: I34a590dc0010dd5aa6332701cb6e394836d1fb4b
[Elliot: resolve trivial merge conflicts]
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Bug: 268234781
Link: https://lore.kernel.org/all/20230304010632.2127470-21-quic_eberman@quicinc.com/
Introduce a framework for Gunyah userspace to install VM functions. VM
functions are optional interfaces to the virtual machine. vCPUs,
ioeventfs, and irqfds are examples of such VM functions and are
implemented in subsequent patches.
A generic framework is implemented instead of individual ioctls to
create vCPUs, irqfds, etc., in order to simplify the VM manager core
implementation and allow dynamic loading of VM function modules.
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Change-Id: I616fa24621348bb6a3a23b400a80423cb91a0d78
Bug: 268234781
Link: https://lore.kernel.org/all/20230304010632.2127470-20-quic_eberman@quicinc.com/
[Elliot: gh_vm_free adjustments for gh_rm_vm_reset]
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
When booting a Gunyah virtual machine, the host VM may gain capabilities
to interact with resources for the guest virtual machine. Examples of
such resources are vCPUs or message queues. To use those resources, we
need to translate the RM response into a gunyah_resource structure which
are useful to Linux drivers. Presently, Linux drivers need only to know
the type of resource, the capability ID, and an interrupt.
On ARM64 systems, the interrupt reported by Gunyah is the GIC interrupt
ID number and always a SPI.
Change-Id: Ia2ba79a8a12b70906b020ae3952ea2db746ff849
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Bug: 268234781
Link: https://lore.kernel.org/all/20230304010632.2127470-19-quic_eberman@quicinc.com/
Add remaining ioctls to support non-proxy VM boot:
- Gunyah Resource Manager uses the VM's devicetree to configure the
virtual machine. The location of the devicetree in the guest's
virtual memory can be declared via the SET_DTB_CONFIG ioctl.
- Trigger start of the virtual machine with VM_START ioctl.
Co-developed-by: Prakruthi Deepak Heragu <quic_pheragu@quicinc.com>
Signed-off-by: Prakruthi Deepak Heragu <quic_pheragu@quicinc.com>
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Bug: 268234781
Link: https://lore.kernel.org/all/20230304010632.2127470-14-quic_eberman@quicinc.com/
Change-Id: Iade2105969dc9bde2274e124696a5fb914478236
[Elliot: fixup gh_vm_free flow to align with future v12 patch]
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Gunyah resource manager provides API to manipulate stage 2 page tables.
Manipulations are represented as a memory parcel. Memory parcels
describe a list of memory regions (intermediate physical address and
size), a list of new permissions for VMs, and the memory type (DDR or
MMIO). Memory parcels are uniquely identified by a handle allocated by
Gunyah. There are a few types of memory parcel sharing which Gunyah
supports:
- Sharing: the guest and host VM both have access
- Lending: only the guest has access; host VM loses access
- Donating: Permanently lent (not reclaimed even if guest shuts down)
Memory parcels that have been shared or lent can be reclaimed by the
host via an additional call. The reclaim operation restores the original
access the host VM had to the memory parcel and removes the access to
other VM.
One point to note that memory parcels don't describe where in the guest
VM the memory parcel should reside. The guest VM must accept the memory
parcel either explicitly via a "gh_rm_mem_accept" call (not introduced
here) or be configured to accept it automatically at boot. As the guest
VM accepts the memory parcel, it also mentions the IPA it wants to place
memory parcel.
Co-developed-by: Prakruthi Deepak Heragu <quic_pheragu@quicinc.com>
Change-Id: I0b36063c2d809448b8fec68a5043c94dbab23806
Signed-off-by: Prakruthi Deepak Heragu <quic_pheragu@quicinc.com>
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Bug: 268234781
Link: https://lore.kernel.org/all/20230304010632.2127470-12-quic_eberman@quicinc.com/
Gunyah VM manager is a kernel moduel which exposes an interface to
Gunyah userspace to load, run, and interact with other Gunyah virtual
machines. The interface is a character device at /dev/gunyah.
Add a basic VM manager driver. Upcoming patches will add more ioctls
into this driver.
Co-developed-by: Prakruthi Deepak Heragu <quic_pheragu@quicinc.com>
Signed-off-by: Prakruthi Deepak Heragu <quic_pheragu@quicinc.com>
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Bug: 268234781
Link: https://lore.kernel.org/all/20230304010632.2127470-11-quic_eberman@quicinc.com/
[Elliot: switch ENOIOCTLCMD to ENOTTY]
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Change-Id: I593c754d0a56f274fa92a3f165dde2e31b85af45
The resource manager is a special virtual machine which is always
running on a Gunyah system. It provides APIs for creating and destroying
VMs, secure memory management, sharing/lending of memory between VMs,
and setup of inter-VM communication. Calls to the resource manager are
made via message queues.
This patch implements the basic probing and RPC mechanism to make those
API calls. Request/response calls can be made with gh_rm_call.
Drivers can also register to notifications pushed by RM via
gh_rm_register_notifier
Specific API calls that resource manager supports will be implemented in
subsequent patches.
Change-Id: I118738f2bf0d038b175ce346ec75a648a12653f1
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Bug: 268234781
Link: https://lore.kernel.org/all/20230304010632.2127470-9-quic_eberman@quicinc.com/
Gunyah message queues are a unidirectional inter-VM pipe for messages up
to 1024 bytes. This driver supports pairing a receiver message queue and
a transmitter message queue to expose a single mailbox channel.
Change-Id: I46d07e553a6887212d9c294d2a796f7f837e23b2
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Bug: 268234781
Link: https://lore.kernel.org/all/20230304010632.2127470-8-quic_eberman@quicinc.com/
Export the version of Gunyah which is reported via the hyp_identify
hypercall. Increments of the major API version indicate possibly
backwards incompatible changes.
Export the hypervisor identity so that Gunyah drivers can act according
to the major API version.
Change-Id: I170271229a851641949076a6eeadc1df32dffe17
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Bug: 268234781
Link: https://lore.kernel.org/all/20230304010632.2127470-6-quic_eberman@quicinc.com/
Add hypercalls to identify when Linux is running a virtual machine under
Gunyah.
There are two calls to help identify Gunyah:
1. gh_hypercall_get_uid() returns a UID when running under a Gunyah
hypervisor.
2. gh_hypercall_hyp_identify() returns build information and a set of
feature flags that are supported by Gunyah.
Change-Id: Ie11b9cad6854b3dabcc406e82ea9f7a1c7f67b9c
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Bug: 268234781
Link: https://lore.kernel.org/all/20230304010632.2127470-5-quic_eberman@quicinc.com/
When Linux is booted as a guest under the Gunyah hypervisor, the Gunyah
Resource Manager applies a devicetree overlay describing the virtual
platform configuration of the guest VM, such as the message queue
capability IDs for communicating with the Resource Manager. This
information is not otherwise discoverable by a VM: the Gunyah hypervisor
core does not provide a direct interface to discover capability IDs nor
a way to communicate with RM without having already known the
corresponding message queue capability ID. Add the DT bindings that
Gunyah adheres for the hypervisor node and message queues.
Reviewed-by: Rob Herring <robh@kernel.org>
Change-Id: I2e438f59c42e169380d4e3212619af4acf282578
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Bug: 268234781
Link: https://lore.kernel.org/all/20230304010632.2127470-3-quic_eberman@quicinc.com/
Gunyah is an open-source Type-1 hypervisor developed by Qualcomm. It
does not depend on any lower-privileged OS/kernel code for its core
functionality. This increases its security and can support a smaller
trusted computing based when compared to Type-2 hypervisors.
Add documentation describing the Gunyah hypervisor and the main
components of the Gunyah hypervisor which are of interest to Linux
virtualization development.
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Change-Id: I471b5ad02732f25e35efe033cd281025c84d0f09
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Bug: 268234781
Link: https://lore.kernel.org/all/20230304010632.2127470-2-quic_eberman@quicinc.com/
The CRC for shmem_file_setup changed after
https://r.android.com/c/2512924/5 rebased on commit due to the bi-weekly
KMI update happening in tandem.
The KMI changes include:
function symbol 'struct file* shmem_file_setup(const char*,
loff_t, unsigned long)' changed
CRC changed from 0x5979e157 to 0xe9ef458b
Also, abi_gki_protected_exports_aarch64 needed an update due to
the hashtag 'kmi-changes-for-2023-03-29'.
Bug: 273448633
Change-Id: Ie174f036ddfbac12e454bbaf927c4a15cf9020f0
Signed-off-by: Will McVicker <willmcvicker@google.com>
Add a trace hook whose callback be used to fill the folio that can be
used for shmem fs. This VH also takes the 'shmem_inode_info' which
can contain the vendor specific data.
Bug: 273448633
Change-Id: Ia48480bba6dba1ee37a3297b69fd61877dae8dc9
Signed-off-by: Charan Teja Kalla <quic_charante@quicinc.com>
Add vendor specific data in the 'struct shmem_inode_info'.
Bug: 273448633
Change-Id: I83a3ac822275d2464af7eb25b869b816fdb7276e
Signed-off-by: Charan Teja Kalla <quic_charante@quicinc.com>
