diff options
| author |   Anish Ghulati <aghulati@google.com> | 2023-01-13 22:09:23 +0000 |
|---|---|---|
| committer |   Sean Christopherson <seanjc@google.com> | 2023-01-24 10:06:48 -0800 |
| commit | a31b531cd2fa2e6b2a736833a94b990d5cf56b40 (patch) | |
| tree | a49c6a86c5e1d7504e83aeed7abb7ee83a47df02 /arch/x86/kvm/svm/sev.c | |
| parent | KVM: svm/avic: Drop "struct kvm_x86_ops" for avic_hardware_setup() (diff) | |
| download | wireguard-linux-a31b531cd2fa2e6b2a736833a94b990d5cf56b40.tar.xz wireguard-linux-a31b531cd2fa2e6b2a736833a94b990d5cf56b40.zip | |
KVM: SVM: Account scratch allocations used to decrypt SEV guest memory
Account the temp/scratch allocation used to decrypt unaligned debug
accesses to SEV guest memory, the allocation is very much tied to the
target VM.
Reported-by: Mingwei Zhang <mizhang@google.com>
Signed-off-by: Anish Ghulati <aghulati@google.com>
Link: https://lore.kernel.org/r/20230113220923.2834699-1-aghulati@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'arch/x86/kvm/svm/sev.c')
| -rw-r--r-- | arch/x86/kvm/svm/sev.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c index 273cba809328..a5e4c5ef7c9e 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -813,7 +813,7 @@ static int __sev_dbg_decrypt_user(struct kvm *kvm, unsigned long paddr, if (!IS_ALIGNED(dst_paddr, 16) || !IS_ALIGNED(paddr, 16) || !IS_ALIGNED(size, 16)) { - tpage = (void *)alloc_page(GFP_KERNEL | __GFP_ZERO); + tpage = (void *)alloc_page(GFP_KERNEL_ACCOUNT | __GFP_ZERO); if (!tpage) return -ENOMEM; |