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linux/arch/x86/kernel
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Juergen Gross 99bcd4a6e5 x86/ioperm: Add new paravirt function update_io_bitmap() 
Commit 111e7b15cf10f6 ("x86/ioperm: Extend IOPL config to control ioperm()
as well") reworked the iopl syscall to use I/O bitmaps.

Unfortunately this broke Xen PV domains using that syscall as there is
currently no I/O bitmap support in PV domains.

Add I/O bitmap support via a new paravirt function update_io_bitmap which
Xen PV domains can use to update their I/O bitmaps via a hypercall.

Fixes: 111e7b15cf10f6 ("x86/ioperm: Extend IOPL config to control ioperm() as well")
Reported-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Cc: <stable@vger.kernel.org> # 5.5
Link: https://lkml.kernel.org/r/20200218154712.25490-1-jgross@suse.com
2020-02-29 12:43:09 +01:00
..
acpi
x86/ACPI/sleep: Move acpi_get_wakeup_address() into sleep.c, remove <asm/realmode.h> from <asm/acpi.h>
2019-12-10 10:15:48 +01:00
apic
A set of fixes for X86:
2020-02-09 12:11:12 -08:00
cpu
x86/pkeys: Manually set X86_FEATURE_OSPKE to preserve existing changes
2020-02-27 19:02:45 +01:00
fpu
x86/fpu: Deactivate FPU state after failure during state load
2020-01-07 13:44:42 +01:00
kprobes
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-01-28 09:44:15 -08:00
.gitignore
…
alternative.c
MPX requires recompiling applications, which requires compiler support.
2020-01-30 16:11:50 -08:00
amd_gart_64.c
dma-mapping updates for 5.5-rc1
2019-11-28 11:16:43 -08:00
amd_nb.c
x86/amd_nb: Add Family 19h PCI IDs
2020-01-16 17:09:18 +01:00
apb_timer.c
remove ioremap_nocache and devm_ioremap_nocache
2020-01-06 09:45:59 +01:00
aperture_64.c
x86/gart: Exclude GART aperture from kcore
2019-03-23 12:11:49 +01:00
apm_32.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 118
2019-05-24 17:39:02 +02:00
asm-offsets_32.c
x86/entry/32: Load task stack from x86_tss.sp1 in SYSENTER handler
2018-07-20 01:11:36 +02:00
asm-offsets_64.c
Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-09-17 12:04:39 -07:00
asm-offsets.c
x86/paravirt: Make read_cr2() CALLEE_SAVE
2019-07-17 23:17:37 +02:00
audit_64.c
…
bootflag.c
…
check.c
x86/headers: Fix -Wmissing-prototypes warning
2018-11-23 07:59:59 +01:00
cpuid.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 142
2019-05-30 11:25:17 -07:00
crash_core_32.c
x86/crash: Define arch_crash_save_vmcoreinfo() if CONFIG_CRASH_CORE=y
2019-12-23 12:58:41 +01:00
crash_core_64.c
x86/crash: Define arch_crash_save_vmcoreinfo() if CONFIG_CRASH_CORE=y
2019-12-23 12:58:41 +01:00
crash_dump_32.c
…
crash_dump_64.c
fs/core/vmcore: Move sev_active() reference to x86 arch code
2019-08-09 22:52:10 +10:00
crash.c
x86/crash: Use resource_size()
2020-01-09 14:40:03 +01:00
devicetree.c
x86/headers: Fix -Wmissing-prototypes warning
2018-11-23 07:59:59 +01:00
doublefault_32.c
x86/doublefault/32: Rewrite the x86_32 #DF handler and unify with 64-bit
2019-11-26 22:00:04 +01:00
dumpstack_32.c
x86/doublefault/32: Move #DF stack and TSS to cpu_entry_area
2019-11-26 21:53:34 +01:00
dumpstack_64.c
x86/dumpstack/64: Don't evaluate exception stacks before setup
2019-11-05 00:51:35 +01:00
dumpstack.c
x86/kasan: Print original address on #GP
2019-12-31 13:15:38 +01:00
e820.c
ACPI updates for 5.5-rc1
2019-11-26 19:25:25 -08:00
early_printk.c
efi/x86: Convert x86 EFI earlyprintk into generic earlycon implementation
2019-02-04 08:27:30 +01:00
early-quirks.c
x86/intel: Disable HPET on Intel Ice Lake platforms
2019-11-29 12:17:58 +01:00
ebda.c
…
eisa.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 243
2019-06-19 17:09:07 +02:00
espfix_64.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288
2019-06-05 17:36:37 +02:00
ftrace_32.S
x86/ftrace: Get rid of function_hook
2019-10-25 10:52:22 +02:00
ftrace_64.S
New tracing features:
2019-11-27 11:42:01 -08:00
ftrace.c
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-01-28 09:44:15 -08:00
head32.c
x86/boot: Mostly revert commit ae7e1238e68f2a ("Add ACPI RSDP address to setup_header")
2018-11-20 09:43:10 +01:00
head64.c
x86/boot/64: Make level2_kernel_pgt pages invalid outside kernel area
2019-10-11 18:38:15 +02:00
head_32.S
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-11-26 10:42:40 -08:00
head_64.S
x86/asm/64: Change all ENTRY+END to SYM_CODE_*
2019-10-18 11:58:26 +02:00
hpet.c
remove ioremap_nocache and devm_ioremap_nocache
2020-01-06 09:45:59 +01:00
hw_breakpoint.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
i8237.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
i8253.c
x86/timer: Skip PIT initialization on modern chipsets
2019-06-29 11:35:35 +02:00
i8259.c
x86: Don't include linux/irq.h from asm/hardirq.h
2018-08-05 09:53:13 +02:00
idt.c
Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-07-08 11:22:57 -07:00
ima_arch.c
x86/ima: use correct identifier for SetupMode variable
2020-02-11 14:42:37 -05:00
io_delay.c
x86/io_delay: Define IO_DELAY macros in C instead of Kconfig
2019-05-24 08:46:06 +02:00
ioport.c
x86/ioperm: Extend IOPL config to control ioperm() as well
2019-11-16 11:24:06 +01:00
irq_32.c
x86/irq: Move IS_ERR_OR_NULL() check into common do_IRQ() code
2019-08-19 23:19:06 +02:00
irq_64.c
x86/irq: Move IS_ERR_OR_NULL() check into common do_IRQ() code
2019-08-19 23:19:06 +02:00
irq_work.c
…
irq.c
x86/irq: Check for VECTOR_UNUSED directly
2019-08-19 23:19:07 +02:00
irqflags.S
x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_*
2019-10-18 11:58:33 +02:00
irqinit.c
x86/irq/32: Handle irq stack allocation failure proper
2019-04-17 15:31:42 +02:00
itmt.c
proc/sysctl: add shared variables for range check
2019-07-18 17:08:07 -07:00
jailhouse.c
x86/jailhouse: Only enable platform UARTs if available
2019-10-10 15:43:59 +02:00
jump_label.c
x86/alternatives: Add and use text_gen_insn() helper
2019-11-27 07:44:24 +01:00
kdebugfs.c
x86/boot: Introduce setup_indirect
2019-11-12 16:21:15 +01:00
kexec-bzimage64.c
efi/x86: Limit EFI old memory map to SGI UV machines
2020-01-20 08:13:01 +01:00
kgdb.c
x86/apic: Provide and use helper for send_IPI_allbutself()
2019-07-25 16:12:00 +02:00
ksysfs.c
x86/boot: Introduce setup_indirect
2019-11-12 16:21:15 +01:00
kvm.c
x86/kvm: do not setup pv tlb flush when not paravirtualized
2020-02-05 15:28:07 +01:00
kvmclock.c
x86: kvmguest: use TSC clocksource if invariant TSC is exposed
2019-02-20 22:48:52 +01:00
ldt.c
mm, x86/mm: Untangle address space layout definitions from basic pgtable type definitions
2019-12-10 10:12:55 +01:00
livepatch.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13
2019-05-21 11:28:45 +02:00
machine_kexec_32.c
x86/crash: Define arch_crash_save_vmcoreinfo() if CONFIG_CRASH_CORE=y
2019-12-23 12:58:41 +01:00
machine_kexec_64.c
x86/crash: Define arch_crash_save_vmcoreinfo() if CONFIG_CRASH_CORE=y
2019-12-23 12:58:41 +01:00
Makefile
x86/crash: Define arch_crash_save_vmcoreinfo() if CONFIG_CRASH_CORE=y
2019-12-23 12:58:41 +01:00
mmconf-fam10h_64.c
…
module.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
mpparse.c
x86/boot: Fix memory leak in default_get_smp_config()
2019-07-16 23:13:48 +02:00
msr.c
x86/msr: Restrict MSR access when the kernel is locked down
2019-08-19 21:54:16 -07:00
nmi_selftest.c
…
nmi.c
x86/nmi: Remove irq_work from the long duration NMI handler
2020-01-11 15:55:39 +01:00
paravirt_patch.c
x86/paravirt: Standardize 'insn_buff' variable names
2019-04-29 16:05:49 +02:00
paravirt-spinlocks.c
x86/paravirt: Use a single ops structure
2018-09-03 16:50:35 +02:00
paravirt.c
x86/ioperm: Add new paravirt function update_io_bitmap()
2020-02-29 12:43:09 +01:00
pci-dma.c
dma-mapping updates for 5.5-rc1
2019-11-28 11:16:43 -08:00
pci-iommu_table.c
x86/iommu: Use NULL instead of 0
2018-08-02 14:33:19 +02:00
pci-swiotlb.c
dma-mapping: fix filename references
2019-09-03 08:36:30 +02:00
pcspeaker.c
x86/platform/pcspeaker: Use PTR_ERR_OR_ZERO() to fix ptr_ret.cocci warning
2018-07-24 09:46:42 +02:00
perf_regs.c
perf/x86/regs: Check reserved bits
2019-06-24 19:19:24 +02:00
platform-quirks.c
…
pmem.c
…
probe_roms.c
…
process_32.c
x86: Remove force_iret()
2020-01-08 19:40:51 +01:00
process_64.c
x86: Remove force_iret()
2020-01-08 19:40:51 +01:00
process.c
x86/ioperm: Add new paravirt function update_io_bitmap()
2020-02-29 12:43:09 +01:00
process.h
x86: Use the correct SPDX License Identifier in headers
2019-10-01 20:31:35 +02:00
ptrace.c
x86/ptrace: Document FSBASE and GSBASE ABI oddities
2019-11-26 22:00:12 +01:00
pvclock.c
x86/vdso: Switch to generic vDSO implementation
2019-06-22 21:21:10 +02:00
quirks.c
remove ioremap_nocache and devm_ioremap_nocache
2020-01-06 09:45:59 +01:00
reboot_fixups_32.c
…
reboot.c
x86/apic: Provide and use helper for send_IPI_allbutself()
2019-07-25 16:12:00 +02:00
relocate_kernel_32.S
x86/asm: Annotate relocate_kernel_{32,64}.c
2019-10-18 09:53:19 +02:00
relocate_kernel_64.S
x86/asm: Annotate relocate_kernel_{32,64}.c
2019-10-18 09:53:19 +02:00
resource.c
…
rtc.c
…
setup_percpu.c
x86: Use pr_warn instead of pr_warning
2019-10-18 15:00:18 +02:00
setup.c
MPX requires recompiling applications, which requires compiler support.
2020-01-30 16:11:50 -08:00
signal_compat.c
…
signal.c
x86: Remove force_iret()
2020-01-08 19:40:51 +01:00
smp.c
x86/smp: Move smp_function_call implementations into IPI code
2019-07-25 16:12:01 +02:00
smpboot.c
Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-09-17 12:04:39 -07:00
stacktrace.c
x86/stacktrace: Prevent access_ok() warnings in arch_stack_walk_user()
2019-07-22 10:42:36 +02:00
step.c
…
sys_x86_64.c
x86/mpx: remove MPX from arch/x86
2020-01-23 10:41:20 -08:00
sysfb_efi.c
x86/sysfb_efi: Add quirks for some devices with swapped width and height
2019-07-22 10:47:11 +02:00
sysfb_simplefb.c
x86/sysfb: Fix check for bad VRAM size
2020-01-20 10:57:53 +01:00
sysfb.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
tboot.c
remove ioremap_nocache and devm_ioremap_nocache
2020-01-06 09:45:59 +01:00
time.c
x86/timer: Don't skip PIT setup when APIC is disabled or in legacy mode
2020-01-29 12:50:12 +01:00
tls.c
x86/tls: Fix possible spectre-v1 in do_get_thread_area()
2019-06-27 23:48:04 +02:00
tls.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 193
2019-05-30 11:29:21 -07:00
topology.c
x86/topology: Make DEBUG_HOTPLUG_CPU0 pr_info() more descriptive
2019-04-19 19:42:57 +02:00
trace_clock.c
…
tracepoint.c
x86/kernel: Fix more -Wmissing-prototypes warnings
2018-12-08 12:24:35 +01:00
traps.c
MPX requires recompiling applications, which requires compiler support.
2020-01-30 16:11:50 -08:00
tsc_msr.c
x86/cpu: Update init data for new Airmont CPU model
2019-09-06 07:30:40 +02:00
tsc_sync.c
x86/tsc: Remove redundant assignment
2020-01-22 13:52:42 +01:00
tsc.c
x86/tsc: Respect tsc command line paraemeter for clocksource_tsc_early
2019-11-05 01:24:56 +01:00
umip.c
Merge branches 'x86-cpu-for-linus' and 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-11-26 08:58:08 -08:00
unwind_frame.c
x86/stackframe/32: Provide consistent pt_regs
2019-06-25 10:23:47 +02:00
unwind_guess.c
treewide: Add SPDX license identifier for missed files
2019-05-21 10:50:45 +02:00
unwind_orc.c
x86/unwind/orc: Fix !CONFIG_MODULES build warning
2020-01-07 08:15:11 +01:00
uprobes.c
x86/apic, x86/uprobes: Correct parameter names in kernel-doc comments
2019-10-27 09:00:28 +01:00
verify_cpu.S
x86/asm: Annotate local pseudo-functions
2019-10-18 10:04:04 +02:00
vm86_32.c
x86: Remove force_iret()
2020-01-08 19:40:51 +01:00
vmlinux.lds.S
x86/vdso: Provide vdso_data offset on vvar_page
2020-01-14 12:20:57 +01:00
vsmp_64.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 346
2019-06-05 17:37:08 +02:00
x86_init.c
A set of fixes for X86:
2020-02-09 12:11:12 -08:00