From e65a3b46b5b1fab92c3273bcf71e028a4d307400 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Fri, 25 Feb 2022 18:22:47 +0000 Subject: [PATCH] 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 Signed-off-by: Sean Christopherson Reviewed-by: Ben Gardon Message-Id: <20220225182248.3812651-7-seanjc@google.com> Signed-off-by: Paolo Bonzini --- Documentation/virt/kvm/vcpu-requests.rst | 7 +++---- include/linux/kvm_host.h | 3 +-- 2 files changed, 4 insertions(+), 6 deletions(-) diff --git a/Documentation/virt/kvm/vcpu-requests.rst b/Documentation/virt/kvm/vcpu-requests.rst index ad2915e..b61d48a 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 0aeb47c..9536ffa 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 -- 2.7.4