Searched hist:"4 c6654bd" (Results 1 – 3 of 3) sorted by relevance
| /openbmc/linux/arch/x86/kvm/mmu/ |
| H A D | tdp_mmu.h | 4c6654bd Thu Apr 01 18:37:36 CDT 2021 Ben Gardon <bgardon@google.com> KVM: x86/mmu: Tear down roots before kvm_mmu_zap_all_fast returns
To avoid saddling a vCPU thread with the work of tearing down an entire
paging structure, take a reference on each root before they become
obsolete, so that the thread initiating the fast invalidation can tear
down the paging structure and (most likely) release the last reference.
As a bonus, this teardown can happen under the MMU lock in read mode so
as not to block the progress of vCPU threads.
Signed-off-by: Ben Gardon <bgardon@google.com>
Message-Id: <20210401233736.638171-14-bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
|
| H A D | tdp_mmu.c | 4c6654bd Thu Apr 01 18:37:36 CDT 2021 Ben Gardon <bgardon@google.com> KVM: x86/mmu: Tear down roots before kvm_mmu_zap_all_fast returns
To avoid saddling a vCPU thread with the work of tearing down an entire
paging structure, take a reference on each root before they become
obsolete, so that the thread initiating the fast invalidation can tear
down the paging structure and (most likely) release the last reference.
As a bonus, this teardown can happen under the MMU lock in read mode so
as not to block the progress of vCPU threads.
Signed-off-by: Ben Gardon <bgardon@google.com>
Message-Id: <20210401233736.638171-14-bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
|
| H A D | mmu.c | 4c6654bd Thu Apr 01 18:37:36 CDT 2021 Ben Gardon <bgardon@google.com> KVM: x86/mmu: Tear down roots before kvm_mmu_zap_all_fast returns
To avoid saddling a vCPU thread with the work of tearing down an entire
paging structure, take a reference on each root before they become
obsolete, so that the thread initiating the fast invalidation can tear
down the paging structure and (most likely) release the last reference.
As a bonus, this teardown can happen under the MMU lock in read mode so
as not to block the progress of vCPU threads.
Signed-off-by: Ben Gardon <bgardon@google.com>
Message-Id: <20210401233736.638171-14-bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
|