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KVM currently does not trap ID register accesses from an AArch32 EL1.
This is painful for a couple of reasons. Certain unimplemented features
are visible to AArch32 EL1, as we limit PMU to version 3 and the debug
architecture to v8.0. Additionally, we attempt to paper over
heterogeneous systems by using register values that are safe
system-wide. All this hard work is completely sidestepped because KVM
does not set TID3 for AArch32 guests.
Fix up handling of CP15 feature registers by simply rerouting to their
AArch64 aliases. Punt setting HCR_EL2.TID3 to a later change, as we need
to fix up the oddball CP10 feature registers still.
Signed-off-by: Oliver Upton <oupton@google.com>
Reviewed-by: Reiji Watanabe <reijiw@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220503060205.2823727-4-oupton@google.com
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emulate_sys_reg() returns 1 unconditionally, even though a a system
register access can fail. Furthermore, kvm_handle_sys_reg() writes to Rt
for every register read, regardless of if it actually succeeded.
Though this pattern is safe (as params.regval is initialized with the
current value of Rt) it is a bit ugly. Indicate failure if the register
access could not be emulated and only write to Rt on success.
Signed-off-by: Oliver Upton <oupton@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220503060205.2823727-3-oupton@google.com
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KVM indicates success/failure in several ways, but generally an integer
is used when conditionally bouncing to userspace is involved. That is
not the case from emulate_cp(); just use a bool instead.
No functional change intended.
Signed-off-by: Oliver Upton <oupton@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220503060205.2823727-2-oupton@google.com
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The macro idtentry() (through idtentry_body()) calls error_entry()
unconditionally even on XENPV. But XENPV needs to only push and clear
regs.
PUSH_AND_CLEAR_REGS in error_entry() makes the stack not return to its
original place when the function returns, which means it is not possible
to convert it to a C function.
Carve out PUSH_AND_CLEAR_REGS out of error_entry() and into a separate
function and call it before error_entry() in order to avoid calling
error_entry() on XENPV.
It will also allow for error_entry() to be converted to C code that can
use inlined sync_regs() and save a function call.
[ bp: Massage commit message. ]
Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20220503032107.680190-4-jiangshanlai@gmail.com
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error_entry() calls fixup_bad_iret() before sync_regs() if it is a fault
from a bad IRET, to copy pt_regs to the kernel stack. It switches to the
kernel stack directly after sync_regs().
But error_entry() itself is also a function call, so it has to stash
the address it is going to return to, in %r12 which is unnecessarily
complicated.
Move the stack switching after error_entry() and get rid of the need to
handle the return address.
[ bp: Massage commit message. ]
Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20220503032107.680190-3-jiangshanlai@gmail.com
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The reference clock for the HDMI controller has been renamed to 'ref',
the previous 'vpll' name is only left for compatibility in the driver.
Rename the clock to the new name.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Michael Riesch <michael.riesch@wolfvision.net>
Link: https://lore.kernel.org/r/20220422072841.2206452-7-s.hauer@pengutronix.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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Always stash the address error_entry() is going to return to, in %r12
and get rid of the void *error_entry_ret; slot in struct bad_iret_stack
which was supposed to account for it and pt_regs pushed on the stack.
After this, both fixup_bad_iret() and sync_regs() can work on a struct
pt_regs pointer directly.
[ bp: Rewrite commit message, touch ups. ]
Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20220503032107.680190-2-jiangshanlai@gmail.com
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The '#dma-channels' and '#dma-requests' properties were deprecated in
favor of these defined by generic dma-common DT bindings. Add new
properties while keeping old ones for backwards compatibility.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Message-Id: <20220503065201.51818-7-krzysztof.kozlowski@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The '#dma-channels' and '#dma-requests' properties were deprecated in
favor of these defined by generic dma-common DT bindings. Add new
properties while keeping old ones for backwards compatibility.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Message-Id: <20220503065201.51818-5-krzysztof.kozlowski@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The clksel related registers on omap3 cause unique_unit_address and
node_name_chars_strict warnings with the W=1 or W=2 make flags enabled.
With the clock drivers updated, we can now avoid most of these warnings
by grouping the TI component clocks using the TI clksel binding, and
with the use of clock-output-names property to avoid non-standard node
names for the clocks.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The clksel related registers on omap3 cause unique_unit_address and
node_name_chars_strict warnings with the W=1 or W=2 make flags enabled.
With the clock drivers updated, we can now avoid most of these warnings
by grouping the TI component clocks using the TI clksel binding, and
with the use of clock-output-names property to avoid non-standard node
names for the clocks.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The clksel related registers on omap3 cause unique_unit_address and
node_name_chars_strict warnings with the W=1 or W=2 make flags enabled.
With the clock drivers updated, we can now avoid most of these warnings
by grouping the TI component clocks using the TI clksel binding, and
with the use of clock-output-names property to avoid non-standard node
names for the clocks.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The clksel related registers on omap3 cause unique_unit_address and
node_name_chars_strict warnings with the W=1 or W=2 make flags enabled.
With the clock drivers updated, we can now avoid most of these warnings
by grouping the TI component clocks using the TI clksel binding, and
with the use of clock-output-names property to avoid non-standard node
names for the clocks.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The clksel related registers on omap3 cause unique_unit_address and
node_name_chars_strict warnings with the W=1 or W=2 make flags enabled.
With the clock drivers updated, we can now avoid most of these warnings
by grouping the TI component clocks using the TI clksel binding, and
with the use of clock-output-names property to avoid non-standard node
names for the clocks.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The clksel related registers on omap3 cause unique_unit_address and
node_name_chars_strict warnings with the W=1 or W=2 make flags enabled.
With the clock drivers updated, we can now avoid most of these warnings
by grouping the TI component clocks using the TI clksel binding, and
with the use of clock-output-names property to avoid non-standard node
names for the clocks.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The clksel related registers on omap3 cause unique_unit_address and
node_name_chars_strict warnings with the W=1 or W=2 make flags enabled.
With the clock drivers updated, we can now avoid most of these warnings
by grouping the TI component clocks using the TI clksel binding, and
with the use of clock-output-names property to avoid non-standard node
names for the clocks.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The clksel related registers on omap3 cause unique_unit_address and
node_name_chars_strict warnings with the W=1 or W=2 make flags enabled.
With the clock drivers updated, we can now avoid most of these warnings
by grouping the TI component clocks using the TI clksel binding, and
with the use of clock-output-names property to avoid non-standard node
names for the clocks.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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|
The clksel related registers on omap3 cause unique_unit_address and
node_name_chars_strict warnings with the W=1 or W=2 make flags enabled.
With the clock drivers updated, we can now avoid most of these warnings
by grouping the TI component clocks using the TI clksel binding, and
with the use of clock-output-names property to avoid non-standard node
names for the clocks.
Signed-off-by: Tony Lindgren <tony@atomide.com>
|
|
The clksel related registers on omap3 cause unique_unit_address and
node_name_chars_strict warnings with the W=1 or W=2 make flags enabled.
With the clock drivers updated, we can now avoid most of these warnings
by grouping the TI component clocks using the TI clksel binding, and
with the use of clock-output-names property to avoid non-standard node
names for the clocks.
Signed-off-by: Tony Lindgren <tony@atomide.com>
|
|
The clksel related registers on omap3 cause unique_unit_address and
node_name_chars_strict warnings with the W=1 or W=2 make flags enabled.
With the clock drivers updated, we can now avoid most of these warnings
by grouping the TI component clocks using the TI clksel binding, and
with the use of clock-output-names property to avoid non-standard node
names for the clocks.
Signed-off-by: Tony Lindgren <tony@atomide.com>
|
|
The clksel related registers on omap3 cause unique_unit_address and
node_name_chars_strict warnings with the W=1 or W=2 make flags enabled.
With the clock drivers updated, we can now avoid most of these warnings
by grouping the TI component clocks using the TI clksel binding, and
with the use of clock-output-names property to avoid non-standard node
names for the clocks.
Signed-off-by: Tony Lindgren <tony@atomide.com>
|
|
The clksel related registers on omap3 cause unique_unit_address and
node_name_chars_strict warnings with the W=1 or W=2 make flags enabled.
With the clock drivers updated, we can now avoid most of these warnings
by grouping the TI component clocks using the TI clksel binding, and
with the use of clock-output-names property to avoid non-standard node
names for the clocks.
Signed-off-by: Tony Lindgren <tony@atomide.com>
|
|
The clksel related registers on omap3 cause unique_unit_address and
node_name_chars_strict warnings with the W=1 or W=2 make flags enabled.
With the clock drivers updated, we can now avoid most of these warnings
by grouping the TI component clocks using the TI clksel binding, and
with the use of clock-output-names property to avoid non-standard node
names for the clocks.
Signed-off-by: Tony Lindgren <tony@atomide.com>
|
|
The clksel related registers on omap3 cause unique_unit_address and
node_name_chars_strict warnings with the W=1 or W=2 make flags enabled.
With the clock drivers updated, we can now avoid most of these warnings
by grouping the TI component clocks using the TI clksel binding, and
with the use of clock-output-names property to avoid non-standard node
names for the clocks.
Signed-off-by: Tony Lindgren <tony@atomide.com>
|
|
The clksel related registers on omap3 cause unique_unit_address and
node_name_chars_strict warnings with the W=1 or W=2 make flags enabled.
With the clock drivers updated, we can now avoid most of these warnings
by grouping the TI component clocks using the TI clksel binding, and
with the use of clock-output-names property to avoid non-standard node
names for the clocks.
Signed-off-by: Tony Lindgren <tony@atomide.com>
|
|
The clksel related registers on omap3 cause unique_unit_address and
node_name_chars_strict warnings with the W=1 or W=2 make flags enabled.
With the clock drivers updated, we can now avoid most of these warnings
by grouping the TI component clocks using the TI clksel binding, and
with the use of clock-output-names property to avoid non-standard node
names for the clocks.
Signed-off-by: Tony Lindgren <tony@atomide.com>
|
|
The clksel related registers on omap3 cause unique_unit_address and
node_name_chars_strict warnings with the W=1 or W=2 make flags enabled.
With the clock drivers updated, we can now avoid most of these warnings
by grouping the TI component clocks using the TI clksel binding, and
with the use of clock-output-names property to avoid non-standard node
names for the clocks.
Signed-off-by: Tony Lindgren <tony@atomide.com>
|
|
The clksel related registers on omap3 cause unique_unit_address and
node_name_chars_strict warnings with the W=1 or W=2 make flags enabled.
With the clock drivers updated, we can now avoid most of these warnings
by grouping the TI component clocks using the TI clksel binding, and
with the use of clock-output-names property to avoid non-standard node
names for the clocks.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Add appropriate firmware-name property for all am43xx platforms.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
[dfustini: change property from 'ti,scale-data-fw' to 'firmware-name']
Signed-off-by: Drew Fustini <dfustini@baylibre.com>
Message-Id: <20220502021508.1342869-4-dfustini@baylibre.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Add appropriate firmware-name property for all am33xx platforms.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
[dfustini: change property from 'ti,scale-data-fw' to 'firmware-name']
Signed-off-by: Drew Fustini <dfustini@baylibre.com>
Message-Id: <20220502021508.1342869-3-dfustini@baylibre.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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With this flag wkup_m3 is able to control IO isolation during
suspend on the board.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Drew Fustini <dfustini@baylibre.com>
Message-Id: <20220502021508.1342869-2-dfustini@baylibre.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Linux 5.18-rc5
There was a build fix for arm I wanted in drm-next, so backmerge rather then cherry-pick.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Issuing a memop on a protected vm does not make sense,
neither is the memory readable/writable, nor does it make sense to check
storage keys. This is why the ioctl will return -EINVAL when it detects
the vm to be protected. However, in order to ensure that the vm cannot
become protected during the memop, the kvm->lock would need to be taken
for the duration of the ioctl. This is also required because
kvm_s390_pv_is_protected asserts that the lock must be held.
Instead, don't try to prevent this. If user space enables secure
execution concurrently with a memop it must accecpt the possibility of
the memop failing.
Still check if the vm is currently protected, but without locking and
consider it a heuristic.
Fixes: ef11c9463ae0 ("KVM: s390: Add vm IOCTL for key checked guest absolute memory access")
Signed-off-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Link: https://lore.kernel.org/r/20220322153204.2637400-1-scgl@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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The helper function, vcpu_to_pi_desc(), is defined to get the posted
interrupt descriptor from vcpu. There is one place that doesn't use
it, and instead references vmx_vcpu->pi_desc directly. Remove the
inconsistency.
Signed-off-by: Yuan Yao <yuan.yao@intel.com>
Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
Message-Id: <ee7be7832bc424546fd4f05015a844a0205b5ba2.1646422845.git.isaku.yamahata@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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For TDX guests, the maximum number of vcpus needs to be specified when the
TDX guest VM is initialized (creating the TDX data corresponding to TDX
guest) before creating vcpu. It needs to record the maximum number of
vcpus on VM creation (KVM_CREATE_VM) and return error if the number of
vcpus exceeds it
Because there is already max_vcpu member in arm64 struct kvm_arch, move it
to common struct kvm and initialize it to KVM_MAX_VCPUS before
kvm_arch_init_vm() instead of adding it to x86 struct kvm_arch.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
Message-Id: <e53234cdee6a92357d06c80c03d77c19cdefb804.1646422845.git.isaku.yamahata@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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This can cause various unexpected issues, since VM is partially
destroyed at that point.
For example when AVIC is enabled, this causes avic_vcpu_load to
access physical id page entry which is already freed by .vm_destroy.
Fixes: 8221c1370056 ("svm: Manage vcpu load/unload when enable AVIC")
Cc: stable@vger.kernel.org
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20220322172449.235575-2-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Fix:
arch/x86/kernel/sev.c:605:16: warning: incorrect type in assignment (different address spaces)
arch/x86/kernel/sev.c:605:16: expected struct snp_secrets_page_layout *layout
arch/x86/kernel/sev.c:605:16: got void [noderef] __iomem *[assigned] mem
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/202205022233.XgNDR7WR-lkp@intel.com
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In some places kvm/hyperv.c code calls bitmap_weight() to check if any bit
of a given bitmap is set. It's better to use bitmap_empty() in that case
because bitmap_empty() stops traversing the bitmap as soon as it finds
first set bit, while bitmap_weight() counts all bits unconditionally.
Signed-off-by: Yury Norov <yury.norov@gmail.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Fix the following coccinelle warnings:
./arch/powerpc/lib/sstep.c:1090:20-21: WARNING: sum of probable
bitmasks, consider |
./arch/powerpc/lib/sstep.c:1115:20-21: WARNING: sum of probable
bitmasks, consider |
./arch/powerpc/lib/sstep.c:1134:20-21: WARNING: sum of probable
bitmasks, consider |
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1613811455-2457-1-git-send-email-yang.lee@linux.alibaba.com
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Fix missing export for a loadable module build:
ERROR: modpost: "cpm_setbrg" [drivers/tty/serial/cpm_uart/cpm_uart.ko] undefined!
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
[chleroy: Changed Fixes: tag]
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210122010819.30986-1-rdunlap@infradead.org
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Build kernel with `C=2`:
arch/powerpc/perf/isa207-common.c:24:18: warning: symbol
'isa207_pmu_format_attr' was not declared. Should it be static?
arch/powerpc/perf/power9-pmu.c:101:5: warning: symbol 'p9_dd21_bl_ev'
was not declared. Should it be static?
arch/powerpc/perf/power9-pmu.c:115:5: warning: symbol 'p9_dd22_bl_ev'
was not declared. Should it be static?
Those symbols are used only in the files that define them so we declare
them as static to fix the warnings.
Signed-off-by: Wang Wensheng <wangwensheng4@huawei.com>
Reviewed-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200923071453.2540-1-wangwensheng4@huawei.com
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Remove unnecassary cast in the argument to kfree().
Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200708072228.30776-1-vulab@iscas.ac.cn
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This boards are based on STM32MP151AAD3 and use 10BaseT1L for communication.
- PRTT1C - 10BaseT1L switch
- PRTT1S - 10BaseT1L CO2 sensor board
- PRTT1A - 10BaseT1L multi functional controller
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
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Add spi1-1 pingroup as preparation for Protonic PRTT1C board.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
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Addresses: warning: Local variable 'mask' shadows outer variable
Remove extra variable declaration and switch the bit mask assignment to use
BIT_ULL() while at it.
Fixes: 522e92743b35 ("x86/fpu: Deduplicate copy_uabi_from_user/kernel_to_xstate()")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/lkml/202204262032.jFYKit5j-lkp@intel.com
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The utilization of arch_scale_freq_tick() for CPU frequency readouts is
incomplete as it failed to move the function prototype and the define
out of the CONFIG_SMP && CONFIG_X86_64 #ifdef.
Make them unconditionally available.
Fixes: bb6e89df9028 ("x86/aperfmperf: Make parts of the frequency invariance code unconditional")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/lkml/202205010106.06xRBR2C-lkp@intel.com
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Various spelling mistakes in comments.
Detected with the help of Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Link: https://lore.kernel.org/r/20220430191122.8667-1-Julia.Lawall@inria.fr
Signed-off-by: Michal Simek <michal.simek@amd.com>
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Don't use numeric labels for long jumps, use named local labels instead.
Avoid conditional label definition.
No functional changes.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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When fast_store_prohibited needs to go to the C-level exception handler
it leaves TLB entry that caused page fault in the TLB. If the faulting
task gets switched to a different CPU and completes page table update
there the TLB entry will get out of sync with the page table which may
cause a livelock on access to that page.
Invalidate faulting TLB entry on a slow path exit from the
fast_store_prohibited.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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Secondary reset vector is defined, compiled and used when
CONFIG_SECONDARY_RESET_VECTOR is enabled, not only on SMP.
Make declarations of _SecondaryResetVector_text_* symbols available
accordingly.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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Oliver Upton
Lai Jiangshan
Sascha Hauer
Krzysztof Kozlowski
Tony Lindgren
Dave Gerlach
Dave Airlie
Janis Schoetterl-Glausch
Yuan Yao
Sean Christopherson
Maxim Levitsky
Borislav Petkov
Yury Norov
Yang Li
Randy Dunlap
Wang Wensheng
Xu Wang
Oleksij Rempel
Thomas Gleixner
Julia Lawall
Max Filippov