Map the test's huge page region with 2MiB virtual mappings when TDP is
disabled so that KVM can shadow the region with huge pages. This fixes
nx_huge_pages_test on hosts where TDP hardware support is disabled.
Purposely do not skip this test on TDP-disabled hosts. While we don't
care about NX Huge Pages on TDP-disabled hosts from a security
perspective, KVM does support it, and so we should test it.
For TDP-enabled hosts, continue mapping the region with 4KiB pages to
ensure that KVM can map it with huge pages irrespective of the guest
mappings.
Fixes: 8448ec5993 ("KVM: selftests: Add NX huge pages test")
Signed-off-by: David Matlack <dmatlack@google.com>
Message-Id: <20220929181207.2281449-4-dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add helper functions for reading the value of kvm_intel and kvm_amd
boolean module parameters. Use the kvm_intel variant in
vm_is_unrestricted_guest() to simplify the check for
kvm_intel.unrestricted_guest.
No functional change intended.
Signed-off-by: David Matlack <dmatlack@google.com>
Message-Id: <20220929181207.2281449-3-dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Revert back to using memset() in generic_svm_setup() now that KVM
selftests override memset() and friends specifically to prevent the
compiler from generating fancy code and/or linking to the libc
implementation.
This reverts commit ed290e1c20.
Suggested-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220928233652.783504-8-seanjc@google.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Combine fix_hypercall_test's two subtests into a common routine, the only
difference between the two is whether or not the quirk is disabled.
Passing a boolean is a little gross, but using an enum to make it super
obvious that the callers are enabling/disabling the quirk seems like
overkill.
No functional change intended.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Message-Id: <20220928233652.783504-7-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Explicitly verify that KVM doesn't patch in the native hypercall if the
FIX_HYPERCALL_INSN quirk is disabled. The test currently verifies that
a #UD occurred, but doesn't actually verify that no patching occurred.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220928233652.783504-6-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Hardcode the VMCALL/VMMCALL opcodes in dedicated arrays instead of
extracting the opcodes from inline asm, and patch in the "other" opcode
so as to preserve the original opcode, i.e. the opcode that the test
executes in the guest.
Preserving the original opcode (by not patching the source), will make
it easier to implement a check that KVM doesn't modify the opcode (the
test currently only verifies that a #UD occurred).
Use INT3 (0xcc) as the placeholder so that the guest will likely die a
horrible death if the test's patching goes awry.
As a bonus, patching from within the test dedups a decent chunk of code.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220928233652.783504-5-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Use input constraints to load RAX and RBX when testing that KVM correctly
does/doesn't patch the "wrong" hypercall. There's no need to manually
load RAX and RBX, and no reason to clobber them either (KVM is not
supposed to modify anything other than RAX).
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Message-Id: <20220928233652.783504-4-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Directly compare the expected versus observed hypercall instructions when
verifying that KVM patched in the native hypercall (FIX_HYPERCALL_INSN
quirk enabled). gcc rightly complains that doing a 4-byte memcpy() with
an "unsigned char" as the source generates an out-of-bounds accesses.
Alternatively, "exp" and "obs" could be declared as 3-byte arrays, but
there's no known reason to copy locally instead of comparing directly.
In function ‘assert_hypercall_insn’,
inlined from ‘guest_main’ at x86_64/fix_hypercall_test.c:91:2:
x86_64/fix_hypercall_test.c:63:9: error: array subscript ‘unsigned int[0]’
is partly outside array bounds of ‘unsigned char[1]’ [-Werror=array-bounds]
63 | memcpy(&exp, exp_insn, sizeof(exp));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
x86_64/fix_hypercall_test.c: In function ‘guest_main’:
x86_64/fix_hypercall_test.c:42:22: note: object ‘vmx_hypercall_insn’ of size 1
42 | extern unsigned char vmx_hypercall_insn;
| ^~~~~~~~~~~~~~~~~~
x86_64/fix_hypercall_test.c:25:22: note: object ‘svm_hypercall_insn’ of size 1
25 | extern unsigned char svm_hypercall_insn;
| ^~~~~~~~~~~~~~~~~~
In function ‘assert_hypercall_insn’,
inlined from ‘guest_main’ at x86_64/fix_hypercall_test.c:91:2:
x86_64/fix_hypercall_test.c:64:9: error: array subscript ‘unsigned int[0]’
is partly outside array bounds of ‘unsigned char[1]’ [-Werror=array-bounds]
64 | memcpy(&obs, obs_insn, sizeof(obs));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
x86_64/fix_hypercall_test.c: In function ‘guest_main’:
x86_64/fix_hypercall_test.c:25:22: note: object ‘svm_hypercall_insn’ of size 1
25 | extern unsigned char svm_hypercall_insn;
| ^~~~~~~~~~~~~~~~~~
x86_64/fix_hypercall_test.c:42:22: note: object ‘vmx_hypercall_insn’ of size 1
42 | extern unsigned char vmx_hypercall_insn;
| ^~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make: *** [../lib.mk:135: tools/testing/selftests/kvm/x86_64/fix_hypercall_test] Error 1
Fixes: 6c2fa8b20d ("selftests: KVM: Test KVM_X86_QUIRK_FIX_HYPERCALL_INSN")
Cc: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Message-Id: <20220928233652.783504-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Implement memcmp(), memcpy(), and memset() to override the compiler's
built-in versions in order to guarantee that the compiler won't generate
out-of-line calls to external functions via the PLT. This allows the
helpers to be safely used in guest code, as KVM selftests don't support
dynamic loading of guest code.
Steal the implementations from the kernel's generic versions, sans the
optimizations in memcmp() for unaligned accesses.
Put the utilities in a separate compilation unit and build with
-ffreestanding to fudge around a gcc "feature" where it will optimize
memset(), memcpy(), etc... by generating a recursive call. I.e. the
compiler optimizes itself into infinite recursion. Alternatively, the
individual functions could be tagged with
optimize("no-tree-loop-distribute-patterns"), but using "optimize" for
anything but debug is discouraged, and Linus NAK'd the use of the flag
in the kernel proper[*].
https://lore.kernel.org/lkml/CAHk-=wik-oXnUpfZ6Hw37uLykc-_P0Apyn2XuX-odh-3Nzop8w@mail.gmail.com
Cc: Andrew Jones <andrew.jones@linux.dev>
Cc: Anup Patel <anup@brainfault.org>
Cc: Atish Patra <atishp@atishpatra.org>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Janosch Frank <frankja@linux.ibm.com>
Cc: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220928233652.783504-2-seanjc@google.com>
Reviewed-by: Andrew Jones <andrew.jones@linux.dev>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The only thing reported by CPUID.9 is the value of
IA32_PLATFORM_DCA_CAP[31:0] in EAX. This MSR doesn't even exist in the
guest, since CPUID.1:ECX.DCA[bit 18] is clear in the guest.
Clear CPUID.9 in KVM_GET_SUPPORTED_CPUID.
Fixes: 24c82e576b ("KVM: Sanitize cpuid")
Signed-off-by: Jim Mattson <jmattson@google.com>
Message-Id: <20220922231854.249383-1-jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Bail out of test_dump_stack() if the stack trace is empty rather than
invoking addr2line with zero addresses. The problem with the latter is
that addr2line will block waiting for addresses to be passed in via
stdin, e.g. if running a selftest from an interactive terminal.
Opportunistically fix up the comment that mentions skipping 3 frames
since only 2 are skipped in the code.
Cc: Vipin Sharma <vipinsh@google.com>
Cc: Sean Christopherson <seanjc@google.com>
Signed-off-by: David Matlack <dmatlack@google.com>
Message-Id: <20220922231724.3560211-1-dmatlack@google.com>
[Small tweak to keep backtrace() call close to if(). - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Page_idle uses {ptep/pmdp}_clear_young_notify which in turn calls
the mmu notifier callback ->clear_young(), which purposefully
does not flush the TLB.
When running the test in a nested guest, point 1. of the test
doc header is violated, because KVM TLB is unbounded by size
and since no flush is forced, KVM does not update the sptes
accessed/idle bits resulting in guest assertion failure.
More precisely, only the first ACCESS_WRITE in run_test() actually
makes visible changes, because sptes are created and the accessed
bit is set to 1 (or idle bit is 0). Then the first mark_memory_idle()
passes since access bit is still one, and sets all pages as idle
(or not accessed). When the next write is performed, the update
is not flushed therefore idle is still 1 and next mark_memory_idle()
fails.
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220926082923.299554-1-eesposit@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Skip selftests that require EPT support in the VM when it is not
available. For example, if running on a machine where kvm_intel.ept=N
since KVM does not offer EPT support to guests if EPT is not supported
on the host.
This commit causes vmx_dirty_log_test to be skipped instead of failing
on hosts where kvm_intel.ept=N.
Signed-off-by: David Matlack <dmatlack@google.com>
Message-Id: <20220926171457.532542-1-dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Inject #UD when emulating XSETBV if CR4.OSXSAVE is not set. This also
covers the "XSAVE not supported" check, as setting CR4.OSXSAVE=1 #GPs if
XSAVE is not supported (and userspace gets to keep the pieces if it
forces incoherent vCPU state).
Add a comment to kvm_emulate_xsetbv() to call out that the CPU checks
CR4.OSXSAVE before checking for intercepts. AMD'S APM implies that #UD
has priority (says that intercepts are checked before #GP exceptions),
while Intel's SDM says nothing about interception priority. However,
testing on hardware shows that both AMD and Intel CPUs prioritize the #UD
over interception.
Fixes: 02d4160fbd ("x86: KVM: add xsetbv to the emulator")
Cc: stable@vger.kernel.org
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220824033057.3576315-4-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Allow FP and SSE state to be saved and restored via KVM_{G,SET}_XSAVE on
XSAVE-capable hosts even if their bits are not exposed to the guest via
XCR0.
Failing to allow FP+SSE first showed up as a QEMU live migration failure,
where migrating a VM from a pre-XSAVE host, e.g. Nehalem, to an XSAVE
host failed due to KVM rejecting KVM_SET_XSAVE. However, the bug also
causes problems even when migrating between XSAVE-capable hosts as
KVM_GET_SAVE won't set any bits in user_xfeatures if XSAVE isn't exposed
to the guest, i.e. KVM will fail to actually migrate FP+SSE.
Because KVM_{G,S}ET_XSAVE are designed to allowing migrating between
hosts with and without XSAVE, KVM_GET_XSAVE on a non-XSAVE (by way of
fpu_copy_guest_fpstate_to_uabi()) always sets the FP+SSE bits in the
header so that KVM_SET_XSAVE will work even if the new host supports
XSAVE.
Fixes: ad856280dd ("x86/kvm/fpu: Limit guest user_xfeatures to supported bits of XCR0")
bz: https://bugzilla.redhat.com/show_bug.cgi?id=2079311
Cc: stable@vger.kernel.org
Cc: Leonardo Bras <leobras@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
[sean: add comment, massage changelog]
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220824033057.3576315-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reinstate the per-vCPU guest_supported_xcr0 by partially reverting
commit 988896bb6182; the implicit assessment that guest_supported_xcr0 is
always the same as guest_fpu.fpstate->user_xfeatures was incorrect.
kvm_vcpu_after_set_cpuid() isn't the only place that sets user_xfeatures,
as user_xfeatures is set to fpu_user_cfg.default_features when guest_fpu
is allocated via fpu_alloc_guest_fpstate() => __fpstate_reset().
guest_supported_xcr0 on the other hand is zero-allocated. If userspace
never invokes KVM_SET_CPUID2, supported XCR0 will be '0', whereas the
allowed user XFEATURES will be non-zero.
Practically speaking, the edge case likely doesn't matter as no sane
userspace will live migrate a VM without ever doing KVM_SET_CPUID2. The
primary motivation is to prepare for KVM intentionally and explicitly
setting bits in user_xfeatures that are not set in guest_supported_xcr0.
Because KVM_{G,S}ET_XSAVE can be used to svae/restore FP+SSE state even
if the host doesn't support XSAVE, KVM needs to set the FP+SSE bits in
user_xfeatures even if they're not allowed in XCR0, e.g. because XCR0
isn't exposed to the guest. At that point, the simplest fix is to track
the two things separately (allowed save/restore vs. allowed XCR0).
Fixes: 988896bb61 ("x86/kvm/fpu: Remove kvm_vcpu_arch.guest_supported_xcr0")
Cc: stable@vger.kernel.org
Cc: Leonardo Bras <leobras@redhat.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220824033057.3576315-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The update to statistic max_mmu_rmap_size is unintentionally removed by
commit 4293ddb788 ("KVM: x86/mmu: Remove redundant spte present check
in mmu_set_spte"). Add missing update to it or max_mmu_rmap_size will
always be nonsensical 0.
Fixes: 4293ddb788 ("KVM: x86/mmu: Remove redundant spte present check in mmu_set_spte")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Message-Id: <20220907080657.42898-1-linmiaohe@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The following warning appears when executing:
make -C tools/testing/selftests/kvm
rseq_test.c: In function ‘main’:
rseq_test.c:237:33: warning: implicit declaration of function ‘gettid’; did you mean ‘getgid’? [-Wimplicit-function-declaration]
(void *)(unsigned long)gettid());
^~~~~~
getgid
/usr/bin/ld: /tmp/ccr5mMko.o: in function `main':
../kvm/tools/testing/selftests/kvm/rseq_test.c:237: undefined reference to `gettid'
collect2: error: ld returned 1 exit status
make: *** [../lib.mk:173: ../kvm/tools/testing/selftests/kvm/rseq_test] Error 1
Use the more compatible syscall(SYS_gettid) instead of gettid() to fix it.
More subsequent reuse may cause it to be wrapped in a lib file.
Signed-off-by: Jinrong Liang <cloudliang@tencent.com>
Message-Id: <20220802071240.84626-1-cloudliang@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This silences smatch warnings reported by kbuild bot:
arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
arch/s390/kvm/gaccess.c:1064 access_guest_with_key() error: uninitialized symbol 'prot'.
This is because it cannot tell that the value is not used in this case.
The trans_exc* only examine prot if code is PGM_PROTECTION.
Pass a dummy value for other codes.
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Link: https://lore.kernel.org/r/20220825192540.1560559-1-scgl@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
With commit 0c24e06119 ("mm: kmemleak: add rbtree and store physical
address for objects allocated with PA"), kmemleak started to put the
objects allocated with physical address onto object_phys_tree_root tree.
The kmemleak_free_part() therefore no longer worked as expected on
physically allocated objects (hyp_mem_base in this case) as it attempted to
search and remove things in object_tree_root tree.
Fix it by using kmemleak_free_part_phys() to unregister hyp_mem_base. This
fixes an immediate crash when booting a KVM host in protected mode with
kmemleak enabled.
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220908130659.2021-1-yuzenghui@huawei.com
Pull parisc architecture fixes from Helge Deller:
"Some small parisc architecture fixes for 6.0-rc6:
One patch lightens up a previous commit and thus unbreaks building the
debian kernel, which tries to configure a 64-bit kernel with the
ARCH=parisc environment variable set.
The other patches fixes asm/errno.h includes in the tools directory
and cleans up memory allocation in the iosapic driver.
Summary:
- Allow configuring 64-bit kernel with ARCH=parisc
- Fix asm/errno.h includes in tools directory for parisc and xtensa
- Clean up iosapic memory allocation
- Minor typo and spelling fixes"
* tag 'parisc-for-6.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Allow CONFIG_64BIT with ARCH=parisc
parisc: remove obsolete manual allocation aligning in iosapic
tools/include/uapi: Fix <asm/errno.h> for parisc and xtensa
Input: hp_sdc: fix spelling typo in comment
parisc: ccio-dma: Add missing iounmap in error path in ccio_probe()
Pull io_uring fixes from Jens Axboe:
"Nothing really major here, but figured it'd be nicer to just get these
flushed out for -rc6 so that the 6.1 branch will have them as well.
That'll make our lives easier going forward in terms of development,
and avoid trivial conflicts in this area.
- Simple trace rename so that the returned opcode name is consistent
with the enum definition (Stefan)
- Send zc rsrc request vs notification lifetime fix (Pavel)"
* tag 'io_uring-6.0-2022-09-18' of git://git.kernel.dk/linux:
io_uring/opdef: rename SENDZC_NOTIF to SEND_ZC
io_uring/net: fix zc fixed buf lifetime
Pull gpio fixes from Bartosz Golaszewski:
- fix the level-low interrupt type support in gpio-mpc8xxx
- convert another two drivers to using immutable irq chips
- MAINTAINERS update
* tag 'gpio-fixes-for-v6.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: mt7621: Make the irqchip immutable
gpio: ixp4xx: Make irqchip immutable
MAINTAINERS: Update HiSilicon GPIO Driver maintainer
gpio: mpc8xxx: Fix support for IRQ_TYPE_LEVEL_LOW flow_type in mpc85xx
Pull pin control fixes from Linus Walleij:
"Nothing special, just driver fixes:
- Fix IRQ wakeup and pins for UFS and SDC2 issues on the Qualcomm
SC8180x
- Fix the Rockchip driver to support interrupt on both rising and
falling edges.
- Name the Allwinner A100 R_PIO properly
- Fix several issues with the Ocelot interrupts"
* tag 'pinctrl-v6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: ocelot: Fix interrupt controller
pinctrl: sunxi: Fix name for A100 R_PIO
pinctrl: rockchip: Enhance support for IRQ_TYPE_EDGE_BOTH
pinctrl: qcom: sc8180x: Fix wrong pin numbers
pinctrl: qcom: sc8180x: Fix gpio_wakeirq_map
Pull block fixes from Jens Axboe:
"Two fixes for -rc6:
- Fix a mixup of sectors and bytes in the secure erase ioctl
(Mikulas)
- Fix for a bad return value for a non-blocking bio/blk queue enter
call (me)"
* tag 'block-6.0-2022-09-16' of git://git.kernel.dk/linux-block:
blk-lib: fix blkdev_issue_secure_erase
block: blk_queue_enter() / __bio_queue_enter() must return -EAGAIN for nowait
Pull io_uring fixes from Jens Axboe:
"Two small patches:
- Fix using an unsigned type for the return value, introduced in this
release (Pavel)
- Stable fix for a missing check for a fixed file on put (me)"
* tag 'io_uring-6.0-2022-09-16' of git://git.kernel.dk/linux-block:
io_uring/msg_ring: check file type before putting
io_uring/rw: fix error'ed retry return values
Pull drm fixes from Dave Airlie:
"This is the regular drm fixes pull.
The i915 and misc fixes are fairly regular, but the amdgpu contains
fixes for new hw blocks, the dcn314 specific path hookups and also has
a bunch of fixes for clang stack size warnings which are a bit churny
but fairly straightforward. This means it looks a little larger than
usual.
amdgpu:
- BACO fixes for some RDNA2 boards
- PCI AER fixes uncovered by a core PCI change
- Properly hook up dirtyfb helper
- RAS fixes for GC 11.x
- TMR fix
- DCN 3.2.x fixes
- DCN 3.1.4 fixes
- LLVM DML stack size fixes
i915:
- Revert a display patch around max DP source rate now that the
proper WaEdpLinkRateDataReload is in place
- Fix perf limit reasons bit position
- Fix unclaimmed mmio registers on suspend flow with GuC
- A vma_move_to_active fix for a regression with video decoding
- DP DSP fix
gma500:
- Locking and IRQ fixes
meson:
- OSD1 display fixes
panel-edp:
- Fix Innolux timings
rockchip:
- DP/HDMI fixes"
* tag 'drm-fixes-2022-09-16' of git://anongit.freedesktop.org/drm/drm: (42 commits)
drm/amdgpu: make sure to init common IP before gmc
drm/amdgpu: move nbio sdma_doorbell_range() into sdma code for vega
drm/amdgpu: move nbio ih_doorbell_range() into ih code for vega
drm/rockchip: Fix return type of cdn_dp_connector_mode_valid
drm/amd/display: Mark dml30's UseMinimumDCFCLK() as noinline for stack usage
drm/amd/display: Reduce number of arguments of dml31's CalculateFlipSchedule()
drm/amd/display: Reduce number of arguments of dml31's CalculateWatermarksAndDRAMSpeedChangeSupport()
drm/amd/display: Reduce number of arguments of dml32_CalculatePrefetchSchedule()
drm/amd/display: Reduce number of arguments of dml32_CalculateWatermarksMALLUseAndDRAMSpeedChangeSupport()
drm/amd/display: Refactor SubVP calculation to remove FPU
drm/amd/display: Limit user regamma to a valid value
drm/amd/display: add workaround for subvp cursor corruption for DCN32/321
drm/amd/display: SW cursor fallback for SubVP
drm/amd/display: Round cursor width up for MALL allocation
drm/amd/display: Correct dram channel width for dcn314
drm/amd/display: Relax swizzle checks for video non-RGB formats on DCN314
drm/amd/display: Hook up DCN314 specific dml implementation
drm/amd/display: Enable dlg and vba compilation for dcn314
drm/amd/display: Fix compilation errors on DCN314
drm/amd/display: Fix divide by zero in DML
...
Pull cifs fixes from Steve French:
"Four smb3 fixes for stable:
- important fix to revalidate mapping when doing direct writes
- missing spinlock
- two fixes to socket handling
- trivial change to update internal version number for cifs.ko"
* tag '6.0-rc5-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: update internal module number
cifs: add missing spinlock around tcon refcount
cifs: always initialize struct msghdr smb_msg completely
cifs: don't send down the destination address to sendmsg for a SOCK_STREAM
cifs: revalidate mapping when doing direct writes
- Revert a display patch around max DP source rate now
that the proper WaEdpLinkRateDataReload is in place. (Ville)
- Fix perf limit reasons bit position. (Ashutosh)
- Fix unclaimmed mmio registers on suspend flow with GuC. (Umesh)
- A vma_move_to_active fix for a regression with video decoding. (Nirmoy)
- DP DSP fix. (Ankit)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YyMtmGMXRLsURoM5@intel.com
If we're invoked with a fixed file, follow the normal rules of not
calling io_fput_file(). Fixed files are permanently registered to the
ring, and do not need putting separately.
Cc: stable@vger.kernel.org
Fixes: aa184e8671 ("io_uring: don't attempt to IOPOLL for MSG_RING requests")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
There's a bug in blkdev_issue_secure_erase. The statement
"unsigned int len = min_t(sector_t, nr_sects, max_sectors);"
sets the variable "len" to the length in sectors, but the statement
"bio->bi_iter.bi_size = len" treats it as if it were in bytes.
The statements "sector += len << SECTOR_SHIFT" and "nr_sects -= len <<
SECTOR_SHIFT" are thinko.
This patch fixes it.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org # v5.19
Fixes: 44abff2c0b ("block: decouple REQ_OP_SECURE_ERASE from REQ_OP_DISCARD")
Link: https://lore.kernel.org/r/alpine.LRH.2.02.2209141549480.28100@file01.intranet.prod.int.rdu2.redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The previous patch triggered a build failure for the debian kernel,
which has CONFIG_64BIT enabled, uses the CROSS_COMPILER environment
variable and uses ARCH=parisc to configure the kernel for 64-bit
support.
This patch weakens the previous patch while keeping the recommended way
to configure the kernel with:
ARCH=parisc -> build 32-bit kernel
ARCH=parisc64 -> build 64-bit kernel
while adding the possibility for debian to configure a 64-bit kernel
even if ARCH=parisc is set (PA8X00 CPU has to be selected and
CONFIG_64BIT needs to be enabled).
The downside of this patch is, that we now have a small window open
again where people may get it wrong: if they enable CONFIG_64BIT and try
to compile with a 32-bit compiler.
Fixes: 3dcfb729b5 ("parisc: Make CONFIG_64BIT available for ARCH=parisc64 only")
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # 5.15+
kmalloc() returns memory with __assume_kmalloc_alignment, which is
__alignof__(unsigned long long) for parisc.
Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Helge Deller <deller@gmx.de>
Move common IP init before GMC init so that HDP gets
remapped before GMC init which uses it.
This fixes the Unsupported Request error reported through
AER during driver load. The error happens as a write happens
to the remap offset before real remapping is done.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216373
The error was unnoticed before and got visible because of the commit
referenced below. This doesn't fix anything in the commit below, rather
fixes the issue in amdgpu exposed by the commit. The reference is only
to associate this commit with below one so that both go together.
Fixes: 8795e182b0 ("PCI/portdrv: Don't disable AER reporting in get_port_device_capability()")
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This mirrors what we do for other asics and this way we are
sure the sdma doorbell range is properly initialized.
There is a comment about the way doorbells on gfx9 work that
requires that they are initialized for other IPs before GFX
is initialized. However, the statement says that it applies to
multimedia as well, but the VCN code currently initializes
doorbells after GFX and there are no known issues there. In my
testing at least I don't see any problems on SDMA.
This is a prerequisite for fixing the Unsupported Request error
reported through AER during driver load.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216373
The error was unnoticed before and got visible because of the commit
referenced below. This doesn't fix anything in the commit below, rather
fixes the issue in amdgpu exposed by the commit. The reference is only
to associate this commit with below one so that both go together.
Fixes: 8795e182b0 ("PCI/portdrv: Don't disable AER reporting in get_port_device_capability()")
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This mirrors what we do for other asics and this way we are
sure the ih doorbell range is properly initialized.
There is a comment about the way doorbells on gfx9 work that
requires that they are initialized for other IPs before GFX
is initialized. In this case IH is initialized before GFX,
so there should be no issue.
This is a prerequisite for fixing the Unsupported Request error
reported through AER during driver load.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216373
The error was unnoticed before and got visible because of the commit
referenced below. This doesn't fix anything in the commit below, rather
fixes the issue in amdgpu exposed by the commit. The reference is only
to associate this commit with below one so that both go together.
Fixes: 8795e182b0 ("PCI/portdrv: Don't disable AER reporting in get_port_device_capability()")
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
When an external device generated a level based interrupt then the
interrupt controller could miss the interrupt. The reason is that the
interrupt controller can detect only link changes.
In the following example, if there is a PHY that generates an interrupt
then the following would happen. The GPIO detected that the interrupt
line changed, and then the 'ocelot_irq_handler' was called. Here it
detects which GPIO line saw the change and for that will call the
following:
1. irq_mask
2. phy interrupt routine
3. irq_eoi
4. irq_unmask
And this works fine for simple cases, but if the PHY generates many
interrupts, for example when doing PTP timestamping, then the following
could happen. Again the function 'ocelot_irq_handler' will be called
and then from here the following could happen:
1. irq_mask
2. phy interrupt routine
3. irq_eoi
4. irq_unmask
Right before step 3(irq_eoi), the PHY will generate another interrupt.
Now the interrupt controller will acknowledge the change in the
interrupt line. So we miss the interrupt.
A solution will be to use 'handle_level_irq' instead of
'handle_fasteoi_irq', because for this will change routine order of
handling the interrupt.
1. irq_mask
2. irq_ack
3. phy interrupt routine
4. irq_unmask
And now if the PHY will generate a new interrupt before irq_unmask, the
interrupt controller will detect this because it already acknowledge the
change in interrupt line at step 2(irq_ack).
But this is not the full solution because there is another issue. In
case there are 2 PHYs that share the interrupt line. For example phy1
generates an interrupt, then the following can happen:
1.irq_mask
2.irq_ack
3.phy0 interrupt routine
4.phy1 interrupt routine
5.irq_unmask
In case phy0 will generate an interrupt while clearing the interrupt
source in phy1, then the interrupt line will be kept down by phy0. So
the interrupt controller will not see any changes in the interrupt line.
The solution here is to update 'irq_unmask' such that it can detect if
the interrupt line is still active or not. And if it is active then call
again the procedure to clear the interrupts. But we don't want to do it
every time, only if we know that the interrupt controller has not seen
already that the interrupt line has changed.
While at this, add support also for IRQ_TYPE_LEVEL_LOW.
Fixes: be36abb71d ("pinctrl: ocelot: add support for interrupt controller")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Link: https://lore.kernel.org/r/20220909145942.844102-1-horatiu.vultur@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Commit 6c846d026d ("gpio: Don't fiddle with irqchips marked as
immutable") added a warning to indicate if the gpiolib is altering the
internals of irqchips. Following this change the following warnings
are now observed for the mt7621 driver:
gpio gpiochip0: (1e000600.gpio-bank0): not an immutable chip, please consider fixing it!
gpio gpiochip1: (1e000600.gpio-bank1): not an immutable chip, please consider fixing it!
gpio gpiochip2: (1e000600.gpio-bank2): not an immutable chip, please consider fixing it!
Fix this by making the irqchip in the mt7621 driver immutable.
Tested-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Pull devicetree fixes from Rob Herring:
- Update some stale binding maintainer emails
- Fix property name error in apple,aic binding
- Add missing param to of_dma_configure_id() stub
- Fix an off-by-one error in unflatten_dt_nodes()
* tag 'devicetree-fixes-for-6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dt-bindings: pinctrl: qcom: drop non-working codeaurora.org emails
dt-bindings: power: qcom,rpmpd: drop non-working codeaurora.org emails
dt-bindings: apple,aic: Fix required item "apple,fiq-index" in affinity description
dt-bindings: interconnect: fsl,imx8m-noc: drop Leonard Crestez
of/device: Fix up of_dma_configure_id() stub
MAINTAINERS: Update email of Neil Armstrong
of: fdt: fix off-by-one error in unflatten_dt_nodes()
