git.baikalelectronics.ru Git - kernel.git/commit

]> git.baikalelectronics.ru Git - kernel.git/commit

author	Ben Gardon <bgardon@google.com>
	Tue, 18 May 2021 17:34:14 +0000 (10:34 -0700)
committer	Paolo Bonzini <pbonzini@redhat.com>
	Thu, 17 Jun 2021 17:09:27 +0000 (13:09 -0400)
commit	43c7774860282d09e825a6adfc218fc606308861
tree	4e083219aaff30031d8df1fb0463279ba0cba222	tree \| snapshot
parent	08763ffdb3a232c11502906962a87c5b1b65031a	commit \| diff

KVM: x86/mmu: Lazily allocate memslot rmaps

If the TDP MMU is in use, wait to allocate the rmaps until the shadow
MMU is actually used. (i.e. a nested VM is launched.) This saves memory
equal to 0.2% of guest memory in cases where the TDP MMU is used and
there are no nested guests involved.

Signed-off-by: Ben Gardon <bgardon@google.com>
Message-Id: <20210518173414.450044-8-bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Linux Kernel Source Tree.

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arch/x86/include/asm/kvm_host.h		diff \| blob \| history
arch/x86/kvm/mmu.h		diff \| blob \| history
arch/x86/kvm/mmu/mmu.c		diff \| blob \| history
arch/x86/kvm/mmu/tdp_mmu.c		diff \| blob \| history
arch/x86/kvm/mmu/tdp_mmu.h		diff \| blob \| history
arch/x86/kvm/x86.c		diff \| blob \| history