KVM: SVM: not account memory allocation for per-CPU svm_data

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The allocation for the per-CPU save area in svm_cpu_init shouldn't
be accounted, So introduce  __snp_safe_alloc_page helper, which has
gfp flag as input, svm_cpu_init calls __snp_safe_alloc_page with
GFP_KERNEL, snp_safe_alloc_page calls __snp_safe_alloc_page with
GFP_KERNEL_ACCOUNT as input

Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/r/20240520120858.13117-3-lirongqing@baidu.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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Li RongQing 2024-05-20 20:08:57 +08:00 • committed by Sean Christopherson

parent f51af34686

commit 9f44286d77

3 changed files with 17 additions and 6 deletions

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6

arch/x86/kvm/svm/sev.c

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2

arch/x86/kvm/svm/svm.c

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15

arch/x86/kvm/svm/svm.h

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