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| author | Kai Huang <kai.huang@intel.com> | 2024-07-15 12:12:24 +0200 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2024-08-22 20:35:15 +0200 |
| commit | d9aa56edad3536f8b24c4695d51725e8d33b3c46 (patch) | |
| tree | cf1cd4ca1536e5196315ee989ecccf0add4f78fc /arch/x86/kvm/vmx | |
| parent | KVM: VMX: Modify the BUILD_BUG_ON_MSG of the 32-bit field in the vmcs_check16... (diff) | |
| download | linux-d9aa56edad3536f8b24c4695d51725e8d33b3c46.tar.xz linux-d9aa56edad3536f8b24c4695d51725e8d33b3c46.zip | |
KVM: VMX: Do not account for temporary memory allocation in ECREATE emulation
In handle_encls_ecreate(), a page is allocated to store a copy of SECS
structure used by the ENCLS[ECREATE] leaf from the guest. This page is
only used temporarily and is freed after use in handle_encls_ecreate().
Don't account for the memory allocation of this page per [1].
Link: https://lore.kernel.org/kvm/b999afeb588eb75d990891855bc6d58861968f23.camel@intel.com/T/#mb81987afc3ab308bbb5861681aa9a20f2aece7fd [1]
Signed-off-by: Kai Huang <kai.huang@intel.com>
Link: https://lore.kernel.org/r/20240715101224.90958-1-kai.huang@intel.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'arch/x86/kvm/vmx')
| -rw-r--r-- | arch/x86/kvm/vmx/sgx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx/sgx.c b/arch/x86/kvm/vmx/sgx.c index 6fef01e0536e..a3c3d2a51f47 100644 --- a/arch/x86/kvm/vmx/sgx.c +++ b/arch/x86/kvm/vmx/sgx.c @@ -274,7 +274,7 @@ static int handle_encls_ecreate(struct kvm_vcpu *vcpu) * simultaneously set SGX_ATTR_PROVISIONKEY to bypass the check to * enforce restriction of access to the PROVISIONKEY. */ - contents = (struct sgx_secs *)__get_free_page(GFP_KERNEL_ACCOUNT); + contents = (struct sgx_secs *)__get_free_page(GFP_KERNEL); if (!contents) return -ENOMEM; |