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| author | Paolo Bonzini <pbonzini@redhat.com> | 2017-04-27 15:33:43 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-04-27 15:36:44 +0300 |
| commit | 7a97cec26b94c909f4cbad2dc3186af3e457a522 (patch) | |
| tree | ce711b80c36bb3c2828cc63b9f65187fa95e2305 /arch/x86/include/asm/kvm_host.h | |
| parent | 178f02ffafafc59d4d4b135242e5cc1515743680 (diff) | |
| download | linux-7a97cec26b94c909f4cbad2dc3186af3e457a522.tar.xz | |
KVM: mark requests that need synchronization
kvm_make_all_requests() provides a synchronization that waits until all
kicked VCPUs have acknowledged the kick. This is important for
KVM_REQ_MMU_RELOAD as it prevents freeing while lockless paging is
underway.
This patch adds the synchronization property into all requests that are
currently being used with kvm_make_all_requests() in order to preserve
the current behavior and only introduce a new framework. Removing it
from requests where it is not necessary is left for future patches.
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/kvm_host.h')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 19219826bed6..84c8489531bb 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -61,10 +61,10 @@ #define KVM_REQ_PMI 19 #define KVM_REQ_SMI 20 #define KVM_REQ_MASTERCLOCK_UPDATE 21 -#define KVM_REQ_MCLOCK_INPROGRESS (22 | KVM_REQUEST_NO_WAKEUP) -#define KVM_REQ_SCAN_IOAPIC (23 | KVM_REQUEST_NO_WAKEUP) +#define KVM_REQ_MCLOCK_INPROGRESS (22 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) +#define KVM_REQ_SCAN_IOAPIC (23 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) #define KVM_REQ_GLOBAL_CLOCK_UPDATE 24 -#define KVM_REQ_APIC_PAGE_RELOAD (25 | KVM_REQUEST_NO_WAKEUP) +#define KVM_REQ_APIC_PAGE_RELOAD (25 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) #define KVM_REQ_HV_CRASH 26 #define KVM_REQ_IOAPIC_EOI_EXIT 27 #define KVM_REQ_HV_RESET 28 |