public-mirrors/linux
1
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-08-05 16:54:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions
linux/arch/powerpc/kernel
History
Alexey Kardashevskiy d80f6de9d6 powerpc/iommu: Fix iommu_table_in_use for a small default DMA window case 
The existing iommu_table_in_use() helper checks if the kernel is using
any of TCEs. There are some reserved TCEs:
1) the very first one if DMA window starts from 0 to avoid having a zero
but still valid DMA handle;
2) it_reserved_start..it_reserved_end to exclude MMIO32 window in case
the default window spans across that - this is the default for the first
DMA window on PowerNV.

When 1) is the case and 2) is not the helper does not skip 1) and returns
wrong status.

This only seems occurring when passing through a PCI device to a nested
guest (not something we support really well) so it has not been seen
before.

This fixes the bug by adding a special case for no MMIO32 reservation.

Fixes: 3c33066a21 ("powerpc/kernel/iommu: Add new iommu_table_in_use() helper")
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220714081119.3714605-1-aik@ozlabs.ru
2022-07-28 16:22:13 +10:00
..
ptrace powerpc: Fix all occurences of duplicate words 2022-07-25 12:05:15 +10:00
syscalls arch: syscalls: simplify uapi/kapi directory creation 2022-03-31 12:03:46 +09:00
trace powerpc: Fix all occurences of duplicate words 2022-07-25 12:05:15 +10:00
vdso powerpc/vdso: Fix __kernel_sync_dicache sequence with coherent icache 2022-07-27 21:36:04 +10:00
.gitignore
align.c powerpc/inst: Define ppc_inst_t 2021-12-09 22:41:21 +11:00
asm-offsets.c KVM: PPC: Book3S HV: Add a new config for P8 debug timing 2022-06-29 19:21:21 +10:00
audit.c Revert "powerpc/audit: Convert powerpc to AUDIT_ARCH_COMPAT_GENERIC" 2021-10-27 22:30:32 +11:00
btext.c powerpc: Fix all occurences of duplicate words 2022-07-25 12:05:15 +10:00
cacheinfo.c powerpc: Remove asm/prom.h from all files that don't need it 2022-05-08 22:15:04 +10:00
cacheinfo.h
compat_audit.c Revert "powerpc/audit: Convert powerpc to AUDIT_ARCH_COMPAT_GENERIC" 2021-10-27 22:30:32 +11:00
cpu_setup_6xx.S
cpu_setup_44x.S
cpu_setup_fsl_booke.S
cpu_setup_pa6t.S
cpu_setup_power.c powerpc/64s: Always set PMU control registers to frozen/disabled when not in use 2021-11-24 21:08:57 +11:00
cpu_setup_ppc970.S
cputable.c powerpc: Remove remaining parts of oprofile 2022-07-27 21:36:05 +10:00
crash_dump.c powerpc updates for 5.19 2022-05-28 11:27:17 -07:00
dawr.c powerpc: Include asm/firmware.h in all users of firmware_has_feature() 2022-06-29 16:45:05 +10:00
dbell.c powerpc/64s/interrupt: Don't enable MSR[EE] in irq handlers unless perf is in use 2021-12-16 21:31:45 +11:00
dma-iommu.c powerpc/iommu: Report the correct most efficient DMA mask for PCI devices 2021-09-30 17:10:17 +10:00
dma-mask.c
dma-swiotlb.c swiotlb: add a SWIOTLB_ANY flag to lift the low memory restriction 2022-04-18 07:21:12 +02:00
dt_cpu_ftrs.c powerpc: Remove remaining parts of oprofile 2022-07-27 21:36:05 +10:00
early_32.c powerpc: Move C prototypes out of asm-prototypes.h 2022-03-08 22:06:25 +11:00
eeh.c powerpc: fix typos in comments 2022-05-05 22:12:44 +10:00
eeh_cache.c powerpc/kernel: Add __init attribute to eligible functions 2021-12-23 22:33:10 +11:00
eeh_driver.c powerpc: Fix all occurences of duplicate words 2022-07-25 12:05:15 +10:00
eeh_event.c powerpc: fix typos in comments 2022-05-05 22:12:44 +10:00
eeh_pe.c powerpc: Fix all occurences of "the the" 2022-05-22 15:59:43 +10:00
eeh_sysfs.c powerpc: Add missing headers 2022-05-08 22:15:40 +10:00
entry_32.S powerpc/rtas: Move rtas entry assembly into its own file 2022-05-19 23:11:27 +10:00
entry_64.S powerpc/rtas: Move rtas entry assembly into its own file 2022-05-19 23:11:27 +10:00
epapr_hcalls.S
epapr_paravirt.c powerpc/inst: Define ppc_inst_t 2021-12-09 22:41:21 +11:00
exceptions-64e.S powerpc: flexible GPR range save/restore macros 2021-11-29 23:15:20 +11:00
exceptions-64s.S powerpc: Fix all occurences of duplicate words 2022-07-25 12:05:15 +10:00
fadump.c powerpc updates for 5.19 2022-05-28 11:27:17 -07:00
firmware.c powerpc: fix unbalanced node refcount in check_kvm_guest() 2021-10-09 00:15:59 +11:00
fpu.S powerpc/64s/interrupt: handle MSR EE and RI in interrupt entry wrapper 2021-12-16 21:31:45 +11:00
fsl_booke_entry_mapping.S powerpc/booke: Avoid link stack corruption in several places 2021-08-25 13:35:47 +10:00
head_8xx.S powerpc/32: Remove _ENTRY() macro 2022-02-07 21:03:10 +11:00
head_32.h powerpc updates for 5.17 2022-01-14 15:17:26 +01:00
head_40x.S powerpc/32: Remove _ENTRY() macro 2022-02-07 21:03:10 +11:00
head_44x.S powerpc/32: Remove _ENTRY() macro 2022-02-07 21:03:10 +11:00
head_64.S powerpc/64e: KASAN Full support for BOOK3E/64 2022-06-29 17:04:15 +10:00
head_book3s_32.S powerpc/32: Set an IBAT covering up to _einittext during init 2022-07-27 21:36:05 +10:00
head_booke.h powerpc: flexible GPR range save/restore macros 2021-11-29 23:15:20 +11:00
head_fsl_booke.S powerpc/32: Remove _ENTRY() macro 2022-02-07 21:03:10 +11:00
hw_breakpoint.c powerpc/inst: Define ppc_inst_t 2021-12-09 22:41:21 +11:00
hw_breakpoint_constraints.c powerpc/inst: Define ppc_inst_t 2021-12-09 22:41:21 +11:00
idle.c powerpc/idle: Fix return value of __setup() handler 2022-05-04 19:37:46 +10:00
idle_6xx.S powerpc/mm: Switch obsolete dssall to .long 2021-12-23 22:35:13 +11:00
idle_book3e.S
idle_book3s.S powerpc/idle: Don't corrupt back chain when going idle 2021-10-20 21:37:58 +11:00
idle_e500.S
ima_arch.c
interrupt.c powerpc: Move C prototypes out of asm-prototypes.h 2022-03-08 22:06:25 +11:00
interrupt_64.S powerpc: Replace PPC64_ELF_ABI_v{1/2} by CONFIG_PPC64_ELF_ABI_V{1/2} 2022-05-19 23:11:29 +10:00
io-workarounds.c powerpc: Fix reverse map real-mode address lookup with huge vmalloc 2021-05-28 22:54:27 +10:00
io.c
iomap.c
iommu.c powerpc/iommu: Fix iommu_table_in_use for a small default DMA window case 2022-07-28 16:22:13 +10:00
irq.c powerpc/irq: Simplify __do_irq() 2022-06-29 16:58:31 +10:00
irq_64.c powerpc/irq64: Remove get_irq_happened() 2022-06-29 16:47:43 +10:00
isa-bridge.c powerpc: Add missing headers 2022-05-08 22:15:40 +10:00
jump_label.c powerpc: Don't use 'struct ppc_inst' to reference instruction location 2021-06-17 00:09:00 +10:00
kdebugfs.c powerpc: rename powerpc_debugfs_root to arch_debugfs_dir 2021-08-13 22:04:26 +10:00
kgdb.c powerpc/config: Add CONFIG_BOOKE_OR_40x 2021-12-09 22:41:19 +11:00
kprobes-ftrace.c ftrace: disable preemption when recursion locked 2021-10-27 11:21:49 -04:00
kprobes.c powerpc/64: Drop ppc_inst_as_str() 2022-06-29 19:37:07 +10:00
kvm.c gup: Turn fault_in_pages_{readable,writeable} into fault_in_{readable,writeable} 2021-10-18 16:33:03 +02:00
kvm_emul.S
l2cr_6xx.S powerpc/mm: Switch obsolete dssall to .long 2021-12-23 22:35:13 +11:00
legacy_serial.c powerpc: Add missing headers 2022-05-08 22:15:40 +10:00
Makefile Merge branch 'fixes' into next 2022-07-25 12:04:44 +10:00
mce.c powerpc/mce: use early_cpu_to_node() in mce_init() 2022-07-27 21:36:04 +10:00
mce_power.c powerpc/inst: Define ppc_inst_t 2021-12-09 22:41:21 +11:00
misc.S powerpc: Avoid link stack corruption in misc asm functions 2021-08-25 13:35:47 +10:00
misc_32.S powerpc: Avoid link stack corruption in misc asm functions 2021-08-25 13:35:47 +10:00
misc_64.S powerpc: Replace PPC64_ELF_ABI_v{1/2} by CONFIG_PPC64_ELF_ABI_V{1/2} 2022-05-19 23:11:29 +10:00
module.c powerpc: Replace PPC64_ELF_ABI_v{1/2} by CONFIG_PPC64_ELF_ABI_V{1/2} 2022-05-19 23:11:29 +10:00
module_32.c powerpc/modules: Use PPC_LI macros instead of opencoding 2022-05-22 15:58:27 +10:00
module_64.c powerpc/modules: Use PPC_LI macros instead of opencoding 2022-05-22 15:58:27 +10:00
msi.c
note.S
nvram_64.c powerpc: Add missing headers 2022-05-08 22:15:40 +10:00
of_platform.c
optprobes.c powerpc/inst: Define ppc_inst_t as u32 on PPC32 2021-12-09 22:41:21 +11:00
optprobes_head.S powerpc: flexible GPR range save/restore macros 2021-11-29 23:15:20 +11:00
paca.c powerpc/mm: Remove CONFIG_PPC_MM_SLICES 2022-05-05 22:11:57 +10:00
pci-common.c powerpc: Fix all occurences of duplicate words 2022-07-25 12:05:15 +10:00
pci-hotplug.c powerpc: Add missing headers 2022-05-08 22:15:40 +10:00
pci_32.c powerpc/pci: Add config option for using all 256 PCI buses 2022-07-27 21:36:04 +10:00
pci_64.c powerpc/pci: Hide pci_device_from_OF_node() for non-powermac code 2022-07-27 21:36:03 +10:00
pci_dn.c powerpc: Fix all occurences of duplicate words 2022-07-25 12:05:15 +10:00
pci_of_scan.c powerpc: Add missing headers 2022-05-08 22:15:40 +10:00
pmc.c
ppc32.h
ppc_save_regs.S
proc_powerpc.c powerpc: Add missing headers 2022-05-08 22:15:40 +10:00
process.c powerpc: Enable execve syscall exit tracepoint 2022-06-18 10:19:10 +10:00
prom.c powerpc: Remove asm/prom.h from asm/mpc52xx.h and asm/pci.h 2022-07-28 16:22:12 +10:00
prom_init.c Merge branch 'fixes' into next 2022-07-09 19:29:34 +10:00
prom_init_check.sh powerpc/prom_init: Fix kernel config grep 2022-06-24 13:47:26 +10:00
prom_parse.c
reloc_32.S powerpc: Avoid link stack corruption in misc asm functions 2021-08-25 13:35:47 +10:00
reloc_64.S powerpc/64: Add UADDR64 relocation support 2022-03-09 21:47:53 +11:00
rtas-proc.c powerpc: Add missing headers 2022-05-08 22:15:40 +10:00
rtas-rtc.c powerpc: Remove asm/prom.h from all files that don't need it 2022-05-08 22:15:04 +10:00
rtas.c powerpc/rtas: Allow ibm,platform-dump RTAS call with null buffer address 2022-06-18 10:19:10 +10:00
rtas_entry.S powerpc/rtas: Leave MSR[RI] enabled over RTAS call 2022-05-19 23:11:27 +10:00
rtas_flash.c powerpc: fix typos in comments 2022-05-05 22:12:44 +10:00
rtas_pci.c powerpc: Add missing headers 2022-05-08 22:15:40 +10:00
rtasd.c powerpc: Remove asm/prom.h from all files that don't need it 2022-05-08 22:15:04 +10:00
secure_boot.c
security.c powerpc: add link stack flush mitigation status in debugfs. 2022-01-31 13:45:23 +11:00
secvar-ops.c
secvar-sysfs.c powerpc/secvar: fix refcount leak in format_show() 2022-03-08 22:07:41 +11:00
setup-common.c powerpc/mm: Move CMA reservations after initmem_init() 2022-06-18 10:18:55 +10:00
setup.h powerpc/config: Add CONFIG_BOOKE_OR_40x 2021-12-09 22:41:19 +11:00
setup_32.c powerpc: Add missing headers 2022-05-08 22:15:40 +10:00
setup_64.c powerpc/64e: Remove MMU_FTR_USE_TLBRSRV and MMU_FTR_USE_PAIRED_MAS 2022-06-29 17:04:14 +10:00
signal.c powerpc/signal: Report minimum signal frame size to userspace via AT_MINSIGSTKSZ 2022-05-19 23:11:26 +10:00
signal.h powerpc/signal32: Fix sigset_t copy 2021-11-16 21:24:16 +11:00
signal_32.c powerpc/signal: Report minimum signal frame size to userspace via AT_MINSIGSTKSZ 2022-05-19 23:11:26 +10:00
signal_64.c powerpc/signal: Report minimum signal frame size to userspace via AT_MINSIGSTKSZ 2022-05-19 23:11:26 +10:00
smp-tbsync.c
smp.c powerpc/crash: save cpu register data in crash_smp_send_stop() 2022-07-28 16:22:13 +10:00
stacktrace.c kprobes: treewide: Make it harder to refer kretprobe_trampoline directly 2021-09-30 21:24:06 -04:00
static_call.c powerpc/32: Add support for out-of-line static calls 2021-10-22 15:22:05 +11:00
suspend.c
swsusp.c
swsusp_32.S powerpc/mm: Switch obsolete dssall to .long 2021-12-23 22:35:13 +11:00
swsusp_64.c powerpc/machdep: Remove stale functions from ppc_md structure 2021-10-22 15:22:05 +11:00
swsusp_asm64.S powerpc/mm: Switch obsolete dssall to .long 2021-12-23 22:35:13 +11:00
swsusp_booke.S
sys_ppc32.c
syscalls.c powerpc: Remove redundant spaces to match coding style 2022-05-04 19:37:46 +10:00
sysfs.c powerpc: Add missing headers 2022-05-08 22:15:40 +10:00
systbl.S
systbl_chk.sh
tau_6xx.c powerpc: Move C prototypes out of asm-prototypes.h 2022-03-08 22:06:25 +11:00
time.c powerpc: Add missing headers 2022-05-08 22:15:40 +10:00
tm.S powerpc/tm: Fix more userspace r13 corruption 2022-03-16 11:59:24 +11:00
traps.c powerpc/kasan: Don't instrument non-maskable or raw interrupts 2022-05-22 15:58:29 +10:00
ucall.S
udbg.c isystem: ship and use stdarg.h 2021-08-19 09:02:55 +09:00
udbg_16550.c powerpc/kernel: Add __init attribute to eligible functions 2021-12-23 22:33:10 +11:00
uprobes.c powerpc: Reject probes on instructions that can't be single stepped 2022-05-06 00:00:20 +10:00
vdso.c powerpc: Remove asm/prom.h from all files that don't need it 2022-05-08 22:15:04 +10:00
vdso32_wrapper.S powerpc/vdso: Merge vdso64 and vdso32 into a single directory 2022-02-12 22:47:43 +11:00
vdso64_wrapper.S powerpc/vdso: Merge vdso64 and vdso32 into a single directory 2022-02-12 22:47:43 +11:00
vecemu.c powerpc/inst: Define ppc_inst_t 2021-12-09 22:41:21 +11:00
vector.S powerpc/64s/interrupt: handle MSR EE and RI in interrupt entry wrapper 2021-12-16 21:31:45 +11:00
vmlinux.lds.S powerpc/64: Add UADDR64 relocation support 2022-03-09 21:47:53 +11:00
watchdog.c powerpc/watchdog: introduce a NMI watchdog's factor 2022-07-27 21:36:02 +10:00