| Message ID | 20230113220923.2834699-1-aghulati@google.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | KVM: SVM: Account scratch allocations used to decrypt SEV guest memory | expand |
On Fri, 13 Jan 2023 22:09:23 +0000, Anish Ghulati wrote: > 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. > > Applied to kvm-x86 svm, thanks! [1/1] KVM: SVM: Account scratch allocations used to decrypt SEV guest memory https://github.com/kvm-x86/linux/commit/e78dfc2b6ff0 -- https://github.com/kvm-x86/linux/tree/next https://github.com/kvm-x86/linux/tree/fixes
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;
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> --- arch/x86/kvm/svm/sev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)