On 05/03/21 17:49, Marc Zyngier wrote:
Hi Paolo,
Here's the first batch of fixes for 5.12. We have a handful of low
level world-switch regressions, a page table walker fix, more PMU
tidying up, and a workaround for systems with creative firmware.
Note that this is based on -rc1 despite the breakage, as I didn't feel
like holding these patches until -rc2.
Please pull,
M.
The following changes since commit fe07bfda2fb9cdef8a4d4008a409bb02f35f1bd8:
Linux 5.12-rc1 (2021-02-28 16:05:19 -0800)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git
tags/kvmarm-fixes-5.12-1
for you to fetch changes up to e85583b3f1fe62c9b371a3100c1c91af94005ca9:
KVM: arm64: Fix range alignment when walking page tables (2021-03-04
09:54:12 +0000)
Hi Marc,
due to a severe data corruption bug in 5.12-rc1, Linus suggested not
including 5.12-rc1 in trees to avoid it eating our filesystems
unwittingly during future bisections.
Would it be a problem for you to rebase on top of your merge window pull
request? If there are conflicts, another possibility is for you to just
send me the patch series. I will handle all the topic branch juggling.
This will mean rewriting kvmarm.git's history, but it does seem to be
the lesser (or the most future-proof) evil.
Thanks,
Paolo
----------------------------------------------------------------
KVM/arm64 fixes for 5.12, take #1
- Fix SPE context save/restore on nVHE
- Fix some subtle host context corruption on vcpu exit
- Fix panic handling on nVHE
- Prevent the hypervisor from accessing PMU registers when there is none
- Workaround broken firmwares advertising bogus GICv2 compatibility
- Fix Stage-2 unaligned range unmapping
----------------------------------------------------------------
Andrew Scull (1):
KVM: arm64: Fix nVHE hyp panic host context restore
Jia He (1):
KVM: arm64: Fix range alignment when walking page tables
Marc Zyngier (4):
KVM: arm64: Turn kvm_arm_support_pmu_v3() into a static key
KVM: arm64: Don't access PMSELR_EL0/PMUSERENR_EL0 when no PMU is
available
KVM: arm64: Rename __vgic_v3_get_ich_vtr_el2() to
__vgic_v3_get_gic_config()
KVM: arm64: Workaround firmware wrongly advertising GICv2-on-v3
compatibility
Suzuki K Poulose (1):
KVM: arm64: nvhe: Save the SPE context early
Will Deacon (1):
KVM: arm64: Avoid corrupting vCPU context register in guest exit
arch/arm64/include/asm/kvm_asm.h | 4 ++--
arch/arm64/include/asm/kvm_hyp.h | 8 ++++++-
arch/arm64/kernel/image-vars.h | 3 +++
arch/arm64/kvm/hyp/entry.S | 2 +-
arch/arm64/kvm/hyp/include/hyp/switch.h | 9 +++++---
arch/arm64/kvm/hyp/nvhe/debug-sr.c | 12 ++++++++--
arch/arm64/kvm/hyp/nvhe/host.S | 15 +++++++------
arch/arm64/kvm/hyp/nvhe/hyp-main.c | 6 ++---
arch/arm64/kvm/hyp/nvhe/switch.c | 14 +++++++++---
arch/arm64/kvm/hyp/pgtable.c | 1 +
arch/arm64/kvm/hyp/vgic-v3-sr.c | 40 +++++++++++++++++++++++++++++++--
arch/arm64/kvm/perf.c | 10 +++++++++
arch/arm64/kvm/pmu-emul.c | 10 ---------
arch/arm64/kvm/vgic/vgic-v3.c | 12 +++++++---
include/kvm/arm_pmu.h | 9 ++++++--
15 files changed, 116 insertions(+), 39 deletions(-)
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