KVM: x86: Account a variety of miscellaneous allocations

stable inclusion
from stable-v5.10.124
commit d6be031a2f5e27f27f3648bac98d2a35874eaddc
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I5L6E7

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=d6be031a2f5e27f27f3648bac98d2a35874eaddc

--------------------------------

commit eba04b20 upstream.

Switch to GFP_KERNEL_ACCOUNT for a handful of allocations that are
clearly associated with a single task/VM.

Note, there are a several SEV allocations that aren't accounted, but
those can (hopefully) be fixed by using the local stack for memory.
Signed-off-by: NSean Christopherson <seanjc@google.com>
Message-Id: <20210331023025.2485960-3-seanjc@google.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
[sudip: adjust context]
Signed-off-by: NSudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
Reviewed-by: NWei Li <liwei391@huawei.com>

arch/x86/kvm/svm/nested.c

@@ -1198,8 +1198,8 @@ static int svm_set_nested_state(struct kvm_vcpu *vcpu,
 		return -EINVAL;
 
 	ret  = -ENOMEM;
-	ctl  = kzalloc(sizeof(*ctl),  GFP_KERNEL);
-	save = kzalloc(sizeof(*save), GFP_KERNEL);
+	ctl  = kzalloc(sizeof(*ctl),  GFP_KERNEL_ACCOUNT);
+	save = kzalloc(sizeof(*save), GFP_KERNEL_ACCOUNT);
 	if (!ctl || !save)
 		goto out_free;
 

arch/x86/kvm/svm/sev.c

@@ -537,7 +537,7 @@ static int sev_launch_measure(struct kvm *kvm, struct kvm_sev_cmd *argp)
 		}
 
 		ret = -ENOMEM;
-		blob = kmalloc(params.len, GFP_KERNEL);
+		blob = kmalloc(params.len, GFP_KERNEL_ACCOUNT);
 		if (!blob)
 			goto e_free;
 

arch/x86/kvm/vmx/vmx.c

@@ -619,7 +619,7 @@ static int hv_enable_direct_tlbflush(struct kvm_vcpu *vcpu)
 	 * evmcs in singe VM shares same assist page.
 	 */
 	if (!*p_hv_pa_pg)
-		*p_hv_pa_pg = kzalloc(PAGE_SIZE, GFP_KERNEL);
+		*p_hv_pa_pg = kzalloc(PAGE_SIZE, GFP_KERNEL_ACCOUNT);
 
 	if (!*p_hv_pa_pg)
 		return -ENOMEM;