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| author | Sean Christopherson <seanjc@google.com> | 2026-02-13 17:26:47 -0800 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2026-03-04 08:52:19 -0800 |
| commit | 4059172b2a78a71d15d8fcd8d3fd8ea1ba65d25b (patch) | |
| tree | 1387dc3feb2ff9700c10163107daa95507f2b21c /include | |
| parent | 11439c4635edd669ae435eec308f4ab8a0804808 (diff) | |
| download | linux-4059172b2a78a71d15d8fcd8d3fd8ea1ba65d25b.tar.gz linux-4059172b2a78a71d15d8fcd8d3fd8ea1ba65d25b.zip | |
KVM: x86: Move kvm_rebooting to x86
Move kvm_rebooting, which is only read by x86, to KVM x86 so that it can
be moved again to core x86 code. Add a "shutdown" arch hook to facilate
setting the flag in KVM x86, along with a pile of comments to provide more
context around what KVM x86 is doing and why.
Reviewed-by: Chao Gao <chao.gao@intel.com>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Tested-by: Chao Gao <chao.gao@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Tested-by: Sagi Shahar <sagis@google.com>
Link: https://patch.msgid.link/20260214012702.2368778-2-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/kvm_host.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 34759a262b28..7c4ebd5210ec 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -1628,6 +1628,13 @@ static inline void kvm_create_vcpu_debugfs(struct kvm_vcpu *vcpu) {} #ifdef CONFIG_KVM_GENERIC_HARDWARE_ENABLING /* + * kvm_arch_shutdown() is invoked immediately prior to forcefully disabling + * hardware virtualization on all CPUs via IPI function calls (in preparation + * for shutdown or reboot), e.g. to allow arch code to prepare for disabling + * virtualization while KVM may be actively running vCPUs. + */ +void kvm_arch_shutdown(void); +/* * kvm_arch_{enable,disable}_virtualization() are called on one CPU, under * kvm_usage_lock, immediately after/before 0=>1 and 1=>0 transitions of * kvm_usage_count, i.e. at the beginning of the generic hardware enabling @@ -2313,7 +2320,6 @@ static inline bool kvm_check_request(int req, struct kvm_vcpu *vcpu) #ifdef CONFIG_KVM_GENERIC_HARDWARE_ENABLING extern bool enable_virt_at_load; -extern bool kvm_rebooting; #endif extern unsigned int halt_poll_ns; |