* [GIT PULL] KVM patches for Linux 6.1-rc2
@ 2022-10-23 17:43 Paolo Bonzini
2022-10-23 22:15 ` Linus Torvalds
2022-10-23 22:39 ` pr-tracker-bot
0 siblings, 2 replies; 4+ messages in thread
From: Paolo Bonzini @ 2022-10-23 17:43 UTC (permalink / raw)
To: torvalds; +Cc: linux-kernel, kvm
Linus,
The following changes since commit 9abf2313adc1ca1b6180c508c25f22f9395cc780:
Linux 6.1-rc1 (2022-10-16 15:36:24 -0700)
are available in the Git repository at:
https://git.kernel.org/pub/scm/virt/kvm/kvm.git tags/for-linus
for you to fetch changes up to 9aec606c1609a5da177b579475a73f6c948e034a:
tools: include: sync include/api/linux/kvm.h (2022-10-22 07:54:19 -0400)
----------------------------------------------------------------
RISC-V:
- Fix compilation without RISCV_ISA_ZICBOM
- Fix kvm_riscv_vcpu_timer_pending() for Sstc
ARM:
- Fix a bug preventing restoring an ITS containing mappings
for very large and very sparse device topology
- Work around a relocation handling error when compiling
the nVHE object with profile optimisation
- Fix for stage-2 invalidation holding the VM MMU lock
for too long by limiting the walk to the largest
block mapping size
- Enable stack protection and branch profiling for VHE
- Two selftest fixes
x86:
- add compat implementation for KVM_X86_SET_MSR_FILTER ioctl
selftests:
- synchronize includes between include/uapi and tools/include/uapi
----------------------------------------------------------------
As a heads up, next week I will have a relatively large pull
request in number of patches, with a series fixing various issues in
virt/kvm/pfncache.c.
Paolo
Alexander Graf (3):
kvm: Add support for arch compat vm ioctls
KVM: x86: Copy filter arg outside kvm_vm_ioctl_set_msr_filter()
KVM: x86: Add compat handler for KVM_X86_SET_MSR_FILTER
Andrew Jones (1):
RISC-V: Fix compilation without RISCV_ISA_ZICBOM
Anup Patel (1):
RISC-V: KVM: Fix kvm_riscv_vcpu_timer_pending() for Sstc
Denis Nikitin (1):
KVM: arm64: nvhe: Fix build with profile optimization
Eric Ren (1):
KVM: arm64: vgic: Fix exit condition in scan_its_table()
Gavin Shan (1):
KVM: selftests: Fix number of pages for memory slot in memslot_modification_stress_test
Oliver Upton (2):
KVM: arm64: Work out supported block level at compile time
KVM: arm64: Limit stage2_apply_range() batch size to largest block
Paolo Bonzini (4):
Merge tag 'kvmarm-fixes-6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
Merge tag 'kvmarm-fixes-6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
Merge tag 'kvm-riscv-fixes-6.1-1' of https://github.com/kvm-riscv/linux into HEAD
tools: include: sync include/api/linux/kvm.h
Vincent Donnefort (1):
KVM: arm64: Enable stack protection and branch profiling for VHE
Zenghui Yu (1):
KVM: arm64: selftests: Fix multiple versions of GIC creation
arch/arm64/include/asm/kvm_pgtable.h | 18 +++--
arch/arm64/include/asm/stage2_pgtable.h | 20 -----
arch/arm64/kvm/hyp/Makefile | 5 +-
arch/arm64/kvm/hyp/nvhe/Makefile | 7 ++
arch/arm64/kvm/mmu.c | 9 ++-
arch/arm64/kvm/vgic/vgic-its.c | 5 +-
arch/riscv/include/asm/cacheflush.h | 8 --
arch/riscv/include/asm/kvm_vcpu_timer.h | 1 +
arch/riscv/kvm/vcpu.c | 3 +
arch/riscv/kvm/vcpu_timer.c | 17 ++++-
arch/riscv/mm/cacheflush.c | 38 ++++++++++
arch/riscv/mm/dma-noncoherent.c | 41 ----------
arch/x86/kvm/x86.c | 87 ++++++++++++++++++----
include/linux/kvm_host.h | 2 +
tools/include/uapi/linux/kvm.h | 1 +
tools/testing/selftests/kvm/aarch64/vgic_init.c | 4 +-
.../kvm/memslot_modification_stress_test.c | 2 +-
virt/kvm/kvm_main.c | 11 +++
18 files changed, 180 insertions(+), 99 deletions(-)
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [GIT PULL] KVM patches for Linux 6.1-rc2
2022-10-23 17:43 [GIT PULL] KVM patches for Linux 6.1-rc2 Paolo Bonzini
@ 2022-10-23 22:15 ` Linus Torvalds
2022-10-25 9:42 ` Paolo Bonzini
2022-10-23 22:39 ` pr-tracker-bot
1 sibling, 1 reply; 4+ messages in thread
From: Linus Torvalds @ 2022-10-23 22:15 UTC (permalink / raw)
To: Paolo Bonzini, Alexander Graf; +Cc: linux-kernel, kvm
On Sun, Oct 23, 2022 at 10:43 AM Paolo Bonzini <pbonzini@redhat.com> wrote:
>
> x86:
>
> - add compat implementation for KVM_X86_SET_MSR_FILTER ioctl
Side note: this should probably have used
compat_uptr_t bitmap;
...
.bitmap = compat_ptr(cr->bitmap),
instead of doing that
__u32 bitmap;
...
.bitmap = (__u8 *)(ulong)cr->bitmap,
because not only are those casts really ugly, using that
'compat_uptr_t" and "compat_ptr()" helper also really explains what is
going on.
compat_ptr() also happens to get the address space right (ie it
returns a "void __user *" pointer). But since the non-compat 'struct
kvm_msr_filter_range' bitmap member doesn't get that right either
(because it uses the same type for kernel pointers as for user
pointers - ugly uglt), that isn't such a big deal. The kvm code
clearly doesn't do proper user pointer typing, and just uses random
casts instead.
Linus
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [GIT PULL] KVM patches for Linux 6.1-rc2
2022-10-23 22:15 ` Linus Torvalds
@ 2022-10-25 9:42 ` Paolo Bonzini
0 siblings, 0 replies; 4+ messages in thread
From: Paolo Bonzini @ 2022-10-25 9:42 UTC (permalink / raw)
To: Linus Torvalds, Alexander Graf; +Cc: linux-kernel, kvm
On 10/24/22 00:15, Linus Torvalds wrote:
>
> compat_ptr() also happens to get the address space right (ie it
> returns a "void __user *" pointer). But since the non-compat 'struct
> kvm_msr_filter_range' bitmap member doesn't get that right either
> (because it uses the same type for kernel pointers as for user
> pointers - ugly uglt), that isn't such a big deal. The kvm code
> clearly doesn't do proper user pointer typing, and just uses random
> casts instead.
In general KVM ioctl arguments very rarely have __user pointers in them,
so there's not much need for compat ioctls at all. KVM_GET_DIRTY_LOG
and KVM_CLEAR_DIRTY_LOG get it right, but this one indeed can be
improved with compat_ptr(). Will do for 6.2, thanks for the review.
Paolo
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [GIT PULL] KVM patches for Linux 6.1-rc2
2022-10-23 17:43 [GIT PULL] KVM patches for Linux 6.1-rc2 Paolo Bonzini
2022-10-23 22:15 ` Linus Torvalds
@ 2022-10-23 22:39 ` pr-tracker-bot
1 sibling, 0 replies; 4+ messages in thread
From: pr-tracker-bot @ 2022-10-23 22:39 UTC (permalink / raw)
To: Paolo Bonzini; +Cc: torvalds, linux-kernel, kvm
The pull request you sent on Sun, 23 Oct 2022 13:43:07 -0400:
> https://git.kernel.org/pub/scm/virt/kvm/kvm.git tags/for-linus
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/05b4ebd2c7cbb3671c376754b37b4963dd08a3a2
Thank you!
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^ permalink raw reply [flat|nested] 4+ messages in thread
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2022-10-23 17:43 [GIT PULL] KVM patches for Linux 6.1-rc2 Paolo Bonzini
2022-10-23 22:15 ` Linus Torvalds
2022-10-25 9:42 ` Paolo Bonzini
2022-10-23 22:39 ` pr-tracker-bot
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