KVM: MMU: Don't read pdptrs with mmu spinlock held in mmu_alloc_roots

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On svm, kvm_read_pdptr() may require reading guest memory, which can sleep.

Push the spinlock into mmu_alloc_roots(), and only take it after we've read
the pdptr.

Tested-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

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Avi Kivity 2010-05-04 12:58:32 +03:00

parent cafd66595d

commit 8facbbff07

1 changed files with 7 additions and 0 deletions

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arch/x86/kvm/mmu.c

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