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authorSean Christopherson2022-02-25 18:22:47 +0000
committerPaolo Bonzini2022-03-01 08:58:26 -0500
commite65a3b46b5b1fab92c3273bcf71e028a4d307400 (patch)
treee0968eebfcf74d4fcf4efb77e12bb45dd0c6aef7
parentcc65c3a110db689abe06c41296cf4da8f0a69b35 (diff)
KVM: Drop KVM_REQ_MMU_RELOAD and update vcpu-requests.rst documentation
Remove the now unused KVM_REQ_MMU_RELOAD, shift KVM_REQ_VM_DEAD into the unoccupied space, and update vcpu-requests.rst, which was missing an entry for KVM_REQ_VM_DEAD. Switching KVM_REQ_VM_DEAD to entry '1' also fixes the stale comment about bits 4-7 being reserved. Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Signed-off-by: Sean Christopherson <seanjc@google.com> Reviewed-by: Ben Gardon <bgardon@google.com> Message-Id: <20220225182248.3812651-7-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--Documentation/virt/kvm/vcpu-requests.rst7
-rw-r--r--include/linux/kvm_host.h3
2 files changed, 4 insertions, 6 deletions
diff --git a/Documentation/virt/kvm/vcpu-requests.rst b/Documentation/virt/kvm/vcpu-requests.rst
index ad2915ef7020..b61d48aec36c 100644
--- a/Documentation/virt/kvm/vcpu-requests.rst
+++ b/Documentation/virt/kvm/vcpu-requests.rst
@@ -112,11 +112,10 @@ KVM_REQ_TLB_FLUSH
choose to use the common kvm_flush_remote_tlbs() implementation will
need to handle this VCPU request.
-KVM_REQ_MMU_RELOAD
+KVM_REQ_VM_DEAD
- When shadow page tables are used and memory slots are removed it's
- necessary to inform each VCPU to completely refresh the tables. This
- request is used for that.
+ This request informs all VCPUs that the VM is dead and unusable, e.g. due to
+ fatal error or because the VM's state has been intentionally destroyed.
KVM_REQ_UNBLOCK
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 0aeb47cffd43..9536ffa0473b 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -153,10 +153,9 @@ static inline bool is_error_page(struct page *page)
* Bits 4-7 are reserved for more arch-independent bits.
*/
#define KVM_REQ_TLB_FLUSH (0 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
-#define KVM_REQ_MMU_RELOAD (1 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
+#define KVM_REQ_VM_DEAD (1 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
#define KVM_REQ_UNBLOCK 2
#define KVM_REQ_UNHALT 3
-#define KVM_REQ_VM_DEAD (4 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
#define KVM_REQ_GPC_INVALIDATE (5 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
#define KVM_REQUEST_ARCH_BASE 8