| Message ID | 20230419021852.2981107-1-reijiw@google.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | KVM: arm64: Fix bugs related to mp_state updates | expand |
On Tue, 18 Apr 2023 19:18:50 -0700, Reiji Watanabe wrote: > This series adds fixes that were missing in the patch [1]. > > The patch [1] added the mp_state_lock to serialize writes to > kvm_vcpu_arch::{mp_state, reset_state}, and promoted all > accessors of mp_state to {READ,WRITE}_ONCE() as readers do not > acquire the mp_state_lock. > > [...] Applied to next, thanks! [1/2] KVM: arm64: Acquire mp_state_lock in kvm_arch_vcpu_ioctl_vcpu_init() commit: 4ff910be01c0ca28c2ea8b354dd47a3a17524489 [2/2] KVM: arm64: Have kvm_psci_vcpu_on() use WRITE_ONCE() to update mp_state commit: a189884bdc9238aeba941c50f02e25eb584fafed Cheers, M.
This series adds fixes that were missing in the patch [1]. The patch [1] added the mp_state_lock to serialize writes to kvm_vcpu_arch::{mp_state, reset_state}, and promoted all accessors of mp_state to {READ,WRITE}_ONCE() as readers do not acquire the mp_state_lock. Since the patch [1] didn't fix all the relevant code, fix the code that weren't addressed yet. This series is based on v6.3-rc7 with the series [2] applied. [1] https://lore.kernel.org/all/20230327164747.2466958-2-oliver.upton@linux.dev/ [2] https://lore.kernel.org/all/20230327164747.2466958-1-oliver.upton@linux.dev/ Reiji Watanabe (2): KVM: arm64: Acquire mp_state_lock in kvm_arch_vcpu_ioctl_vcpu_init() KVM: arm64: Have kvm_psci_vcpu_on() use WRITE_ONCE() to update mp_state arch/arm64/kvm/arm.c | 5 ++++- arch/arm64/kvm/psci.c | 2 +- 2 files changed, 5 insertions(+), 2 deletions(-)